:root {
  --bg: #f4efe6;
  --bg-soft: #f9f6f0;
  --ink: #222018;
  --ink-soft: #4f4a3e;
  --line: rgba(34, 32, 24, 0.16);
  --accent: #ba8a3c;
  --accent-deep: #8e6323;
  --jade: #28463a;
  --max-width: 1120px;
  --header-height: 74px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans SC", "PingFang SC", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 10%, rgba(186, 138, 60, 0.16), transparent 38%),
    radial-gradient(circle at 88% 24%, rgba(40, 70, 58, 0.12), transparent 42%),
    var(--bg);
  line-height: 1.65;
  letter-spacing: 0.02em;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(18px, 3vw, 42px);
  z-index: 20;
  background: rgba(24, 26, 22, 0.68);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.brand {
  font-family: "Noto Serif SC", serif;
  color: #f2e7d0;
  font-size: clamp(20px, 2.3vw, 26px);
  letter-spacing: 0.18em;
}

.site-nav {
  display: flex;
  gap: clamp(10px, 2vw, 24px);
}

.site-nav a {
  color: rgba(245, 237, 220, 0.9);
  font-size: 14px;
  transition: color 0.25s ease;
}

.site-nav a:hover {
  color: #fff;
}

.hero {
  position: relative;
  margin-top: var(--header-height);
  min-height: calc(100svh - var(--header-height));
  padding: 56px clamp(18px, 5vw, 64px) 64px;
  display: flex;
  align-items: center;
  background-image:
    linear-gradient(rgba(19, 17, 13, 0.56), rgba(17, 15, 12, 0.72)),
    url("./pic/background.png");
  background-size: 100% 100%;
  background-repeat: no-repeat;
  background-position: center;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: 12%;
  width: min(34vw, 420px);
  aspect-ratio: 1;
  border: 1px solid rgba(241, 225, 188, 0.2);
  transform: rotate(24deg);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, rgba(0, 0, 0, 0.24) 12%, rgba(0, 0, 0, 0) 68%);
}

.hero-content {
  position: relative;
  max-width: 700px;
  color: #f3ead8;
  z-index: 2;
}

.kicker,
.section-kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 12px;
}

.kicker {
  color: rgba(245, 226, 191, 0.92);
}

.hero h1 {
  margin: 18px 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(32px, 6vw, 62px);
  line-height: 1.15;
  letter-spacing: 0.04em;
}

.hero-text {
  margin: 0;
  max-width: 560px;
  color: rgba(242, 230, 208, 0.9);
  font-size: clamp(15px, 2vw, 20px);
}

.hero-actions {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 158px;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.28s ease, background-color 0.28s ease, color 0.28s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent);
  color: #1f1b14;
}

.btn-primary:hover {
  background: #d39d47;
}

.btn-ghost {
  border-color: rgba(247, 230, 198, 0.65);
  color: #f8edd6;
}

.btn-ghost:hover {
  background: rgba(248, 236, 208, 0.12);
}

.section {
  width: min(var(--max-width), 100% - clamp(28px, 8vw, 90px));
  margin-inline: auto;
  padding: clamp(58px, 8vw, 92px) 0;
}

.section-title-wrap {
  display: grid;
  gap: 6px;
  margin-bottom: clamp(22px, 4vw, 34px);
}

.section-kicker {
  color: var(--accent-deep);
}

.section h2 {
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: 0.06em;
}

.about {
  border-bottom: 1px solid var(--line);
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(250px, 360px) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.about-content {
  display: grid;
  gap: 18px;
}

.about-lead {
  font-size: 18px;
  color: var(--ink-soft);
}

.about-lead p {
  margin: 0 0 14px;
}

.about-points {
  display: grid;
  gap: 18px;
}

.line-item {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.line-item span {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--accent-deep);
  margin-bottom: 4px;
}

.line-item p {
  margin: 0;
  color: var(--ink-soft);
}

.about-photo {
  margin: 0;
  width: 100%;
}

.about-photo img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 18px;
  box-shadow: 0 18px 36px rgba(33, 28, 18, 0.16);
}

.about-photo figcaption {
  margin-top: 10px;
  text-align: left;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

.studio {
  border-bottom: 1px solid var(--line);
}

.section-intro {
  max-width: 700px;
  margin: 0 0 28px;
  color: var(--ink-soft);
}

.studio-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}

.studio-portrait {
  grid-column: span 2;
  min-height: 300px;
}

.studio-wide {
  grid-column: span 3;
  min-height: 220px;
}

.studio-grid figure {
  margin: 0;
  overflow: hidden;
  border-radius: 18px;
  position: relative;
  min-height: 280px;
}

.studio-grid figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.01);
  transition: transform 0.45s ease;
}

.studio-grid figure:hover img {
  transform: scale(1.08);
}

.studio-grid figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  color: #f7eed8;
  font-size: 13px;
  padding: 30px 14px 12px;
  background: linear-gradient(to top, rgba(13, 12, 10, 0.8), rgba(13, 12, 10, 0));
}

.services {
  position: relative;
}

.service-list {
  border-top: 1px solid var(--line);
}

.service-row {
  margin: 0;
  padding: clamp(20px, 3vw, 28px) 0;
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: clamp(10px, 2vw, 24px);
  align-items: start;
  border-bottom: 1px solid var(--line);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.service-row:hover {
  transform: translateX(8px);
  border-color: rgba(186, 138, 60, 0.48);
}

.service-index {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--accent-deep);
  padding-top: 8px;
}

.service-row h3 {
  margin: 0 0 8px;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(24px, 3.2vw, 32px);
}

.service-row p {
  margin: 0;
  color: var(--ink-soft);
}

.service-tag {
  margin: 0;
  align-self: center;
  color: var(--jade);
  font-size: 14px;
  letter-spacing: 0.08em;
}

.case {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.case-story {
  display: grid;
  gap: 22px;
}

.case-story h3 {
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(24px, 3.5vw, 34px);
}

.case-story > p {
  margin: 0;
  color: var(--ink-soft);
  max-width: 920px;
}

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

.case-timeline > div {
  border-left: 2px solid rgba(186, 138, 60, 0.58);
  padding-left: 14px;
}

.case-timeline span {
  display: block;
  font-weight: 700;
  color: var(--jade);
  margin-bottom: 6px;
}

.case-timeline p {
  margin: 0;
  color: var(--ink-soft);
}

.contact {
  text-align: center;
}

.contact h2 {
  margin-top: 10px;
}

.contact p {
  max-width: 700px;
  margin: 0 auto 12px;
  color: var(--ink-soft);
}

.contact-meta {
  margin: 20px 0 24px;
}

.site-footer {
  text-align: center;
  padding: 24px 16px 32px;
  color: rgba(67, 59, 45, 0.85);
  font-size: 13px;
}

[data-stagger],
.js-reveal {
  opacity: 0;
  transform: translateY(28px);
}

.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.75s ease, transform 0.75s ease;
}

@media (max-width: 980px) {
  .site-nav {
    display: none;
  }

  .hero {
    min-height: calc(92svh - var(--header-height));
  }

  .about-layout {
    grid-template-columns: 1fr;
  }

  .about-photo {
    width: min(100%, 420px);
  }

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

  .studio-portrait {
    grid-column: span 1;
    min-height: 230px;
  }

  .studio-wide {
    grid-column: 1 / -1;
    min-height: 200px;
  }

  .service-row {
    grid-template-columns: 52px 1fr;
  }

  .service-tag {
    grid-column: 2;
  }

  .case-timeline {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero {
    background-image:
      linear-gradient(rgba(19, 17, 13, 0.56), rgba(17, 15, 12, 0.72)),
      url("./pic/background-mb.png");
  }

  .hero h1 {
    letter-spacing: 0.03em;
  }

  .btn {
    width: 100%;
  }

  .hero-actions {
    width: 100%;
  }

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

  .studio-grid figure {
    min-height: 210px;
  }

  .studio-portrait {
    min-height: 210px;
  }

  .studio-wide {
    grid-column: span 1;
    min-height: 180px;
  }
}