:root {
  --ink: #0b0c0a;
  --stone: #161410;
  --panel: #1c1914;
  --line: rgba(201, 168, 106, 0.28);
  --gold: #c9a86a;
  --gold-deep: #8c7348;
  --ivory: #ede6d6;
  --ivory-dim: #cfc4b0;
  --taupe: #a89b86;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--ivory);
  font-family: "Noto Serif SC", "Cormorant Garamond", serif;
  line-height: 1.75;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

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

img {
  max-width: 100%;
}

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 80;
  opacity: 0.09;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.cursor {
  display: none;
}

.eyebrow {
  margin: 0 0 1.1rem;
  color: var(--gold);
  font-family: "Sora", sans-serif;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

h1, h2, h3 {
  margin: 0;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.04em;
}

.btn-gold,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.1rem;
  padding: 0 1.5rem;
  border: 1px solid var(--gold);
  font-family: "Sora", "Noto Serif SC", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  transition: 0.35s var(--ease);
}

.btn-gold {
  background: var(--gold);
  color: #1a140c;
}

.btn-gold:hover {
  background: transparent;
  color: var(--gold);
}

.btn-ghost {
  background: transparent;
  color: var(--ivory);
  border-color: rgba(237, 230, 214, 0.28);
}

.btn-ghost:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: 1.15rem 3.2vw;
  background: linear-gradient(180deg, rgba(11, 12, 10, 0.92), rgba(11, 12, 10, 0));
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

.nav.is-scrolled {
  background: rgba(11, 12, 10, 0.92);
  box-shadow: 0 1px 0 var(--line);
  backdrop-filter: blur(14px);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-mark {
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 1.05rem;
}

.nav-name {
  font-family: "Noto Serif SC", serif;
  font-size: 1rem;
  letter-spacing: 0.22em;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
}

.nav-links a {
  font-family: "Sora", "Noto Serif SC", sans-serif;
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--ivory-dim);
}

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

.nav-cta {
  font-family: "Sora", sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  border-bottom: 1px solid var(--gold);
  padding-bottom: 0.2rem;
  color: var(--gold);
}

.nav-toggle {
  display: none;
  width: 2.4rem;
  height: 2.4rem;
  padding: 0;
  border: 0;
  background: transparent;
}

.nav-toggle span {
  display: block;
  height: 1px;
  margin: 0.35rem 0;
  background: var(--ivory);
}

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 88px 1fr minmax(220px, 280px);
  align-items: end;
  padding: 8.5rem 3.2vw 4.5rem;
  background:
    radial-gradient(ellipse at 78% 18%, rgba(201, 168, 106, 0.16), transparent 38%),
    radial-gradient(ellipse at 12% 88%, rgba(140, 115, 72, 0.14), transparent 42%),
    linear-gradient(180deg, #0b0c0a 0%, #14110d 100%);
}

.hero-spine {
  position: absolute;
  top: 42%;
  left: 2.2vw;
  margin: 0;
  transform: rotate(-90deg);
  transform-origin: left center;
  font-family: "Cinzel", serif;
  font-size: 0.7rem;
  letter-spacing: 0.42em;
  color: var(--gold);
  white-space: nowrap;
}

.hero-watermark {
  position: absolute;
  right: -2vw;
  top: 18vh;
  margin: 0;
  font-size: clamp(7rem, 22vw, 18rem);
  line-height: 0.8;
  color: rgba(237, 230, 214, 0.045);
  letter-spacing: 0.08em;
  pointer-events: none;
}

.hero-frame {
  position: absolute;
  left: 11vw;
  top: 19vh;
  width: min(58vw, 760px);
  height: min(58vh, 520px);
  border-left: 1px solid var(--line);
  border-top: 1px solid var(--line);
  pointer-events: none;
}

.hero-copy {
  grid-column: 2;
  max-width: 760px;
  padding-bottom: 1rem;
}

.hero-en {
  display: block;
  font-family: "Cinzel", serif;
  font-size: clamp(2.8rem, 7vw, 6.4rem);
  font-weight: 500;
  letter-spacing: 0.16em;
  line-height: 0.92;
}

.hero-zh {
  display: block;
  margin-top: 1.1rem;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
}

.hero-lead {
  max-width: 34rem;
  margin: 1.6rem 0 2.1rem;
  color: var(--ivory-dim);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.hero-meta {
  display: grid;
  gap: 1.4rem;
  padding: 1.5rem 0 0.4rem 1.4rem;
  border-left: 1px solid var(--line);
}

.hero-meta span {
  display: block;
  margin-bottom: 0.25rem;
  font-family: "Sora", sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--taupe);
}

.hero-meta strong {
  font-weight: 500;
  font-size: 1rem;
}

.marquee {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #100e0b;
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  width: max-content;
  padding: 0.95rem 0;
  animation: drift 28s linear infinite;
  font-family: "Cinzel", serif;
  font-size: 0.78rem;
  letter-spacing: 0.32em;
  color: var(--gold-deep);
}

.marquee-track i {
  display: block;
  width: 5px;
  height: 5px;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
}

@keyframes drift {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.about,
.services,
.cases,
.method,
.license,
.visit {
  scroll-margin-top: 5.5rem;
}

.about,
.services,
.cases,
.method,
.license,
.visit,
.footer {
  padding: 7.5rem 7vw;
}

.about {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 6vw;
  align-items: end;
  background:
    linear-gradient(90deg, transparent 62%, rgba(201, 168, 106, 0.04) 62%),
    var(--stone);
}

.about h2,
.section-head h2,
.cases h2,
.method h2,
.license h2,
.visit h2 {
  font-size: clamp(2rem, 4vw, 3.3rem);
  max-width: 14ch;
}

.about-right p {
  margin: 0 0 1.2rem;
  color: var(--ivory-dim);
  font-size: 1.06rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
  margin: 2.4rem 0 0;
}

.about-stats dt {
  margin-bottom: 0.35rem;
  font-family: "Sora", sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.about-stats dd {
  margin: 0;
  font-size: 1.15rem;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 2rem;
  margin-bottom: 3.5rem;
}

.section-head h2 {
  max-width: 12ch;
}

.services {
  background: var(--ink);
}

.service {
  display: grid;
  grid-template-columns: 140px 1fr 140px;
  gap: 2rem;
  align-items: end;
  padding: 2.6rem 0;
  border-top: 1px solid rgba(201, 168, 106, 0.16);
  transition: padding 0.45s var(--ease), background 0.45s var(--ease);
}

.service:last-child {
  border-bottom: 1px solid rgba(201, 168, 106, 0.16);
}

.service-a { padding-left: 0; }
.service-b { padding-left: 6vw; }
.service-c { padding-left: 2vw; }
.service-d { padding-left: 9vw; }

.service:hover {
  background: linear-gradient(90deg, rgba(201, 168, 106, 0.05), transparent 70%);
}

.service-no {
  font-family: "Cinzel", serif;
  font-size: 3.4rem;
  line-height: 0.8;
  color: rgba(201, 168, 106, 0.35);
}

.service h3 {
  font-size: 2rem;
  margin-bottom: 0.7rem;
}

.service p {
  margin: 0;
  max-width: 38rem;
  color: var(--ivory-dim);
}

.service-tag {
  font-family: "Cinzel", serif;
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  color: var(--gold);
  text-align: right;
}

.cases {
  background:
    radial-gradient(circle at 8% 12%, rgba(201, 168, 106, 0.07), transparent 28%),
    var(--stone);
}

.section-head + .cases-note,
.cases-note {
  max-width: 46rem;
  margin: -1.6rem 0 3.2rem;
  color: var(--ivory-dim);
}

.case-feature {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.2vw;
  align-items: stretch;
  margin-bottom: 2.4rem;
}

.case figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
}

.case img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  filter: grayscale(0.35) contrast(1.05);
  transition: 0.6s var(--ease);
}

.case:hover img {
  filter: none;
  transform: scale(1.03);
}

.case-body {
  display: flex;
  flex-direction: column;
  justify-content: end;
  padding: 0.4rem 0 0.2rem;
}

.case-feature .case-body {
  padding: 1.2rem 0 0.4rem;
}

.case-meta {
  margin: 0 0 0.85rem;
  font-family: "Sora", "Noto Serif SC", sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.case h3 {
  margin-bottom: 0.8rem;
  font-size: clamp(1.45rem, 2.4vw, 2.1rem);
}

.case p {
  margin: 0 0 1rem;
  color: var(--ivory-dim);
}

.case ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.case li {
  padding: 0.45rem 0;
  border-top: 1px solid rgba(201, 168, 106, 0.16);
  color: var(--ivory);
  font-size: 0.98rem;
}

.case-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1.4rem;
}

.case-grid .case {
  border: 1px solid var(--line);
  background: rgba(11, 12, 10, 0.28);
}

.case-grid figure {
  border: 0;
  border-bottom: 1px solid var(--line);
}

.case-grid img {
  min-height: 190px;
  height: 190px;
}

.case-grid .case-body {
  padding: 1.2rem 1.15rem 1.3rem;
}

.method {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 5vw;
  background:
    radial-gradient(circle at 88% 20%, rgba(201, 168, 106, 0.08), transparent 26%),
    var(--stone);
}

.method-intro p:last-child {
  max-width: 34rem;
  color: var(--ivory-dim);
}

.method-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem 1.6rem;
}

.method-list li {
  padding: 1.5rem 1.4rem 1.4rem;
  border: 1px solid var(--line);
  background: rgba(11, 12, 10, 0.35);
}

.method-list span {
  display: block;
  margin-bottom: 1.1rem;
  font-family: "Cinzel", serif;
  color: var(--gold);
  letter-spacing: 0.14em;
}

.method-list h3 {
  margin-bottom: 0.55rem;
  font-size: 1.35rem;
}

.method-list p {
  margin: 0;
  color: var(--ivory-dim);
  font-size: 0.98rem;
}

.license {
  background: #100e0b;
}

.license-plate {
  position: relative;
  padding: 3.2rem 3rem 2.8rem;
  border: 1px solid var(--gold);
  background:
    linear-gradient(180deg, rgba(201, 168, 106, 0.05), transparent 20%),
    var(--panel);
}

.license-plate::before,
.license-plate::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border: 1px solid var(--gold);
}

.license-plate::before { top: 10px; left: 10px; }
.license-plate::after { bottom: 10px; right: 10px; }

.license-plate header {
  margin-bottom: 2.4rem;
}

.license-plate header p:last-of-type {
  max-width: 36rem;
  color: var(--ivory-dim);
}

.plate-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem 2.4rem;
}

.plate-item {
  padding-top: 0.85rem;
  border-top: 1px solid rgba(201, 168, 106, 0.18);
}

.plate-item.wide {
  grid-column: 1 / -1;
}

.plate-item span {
  display: block;
  margin-bottom: 0.4rem;
  font-family: "Sora", sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.plate-item strong {
  font-weight: 500;
  font-size: 1.08rem;
}

.plate-item .mono {
  font-family: "Sora", sans-serif;
  letter-spacing: 0.08em;
}

.plate-item .scope {
  font-size: 1rem;
  color: var(--ivory-dim);
  font-weight: 400;
}

.plate-item a {
  border-bottom: 1px solid var(--gold);
}

.visit {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 6vw;
  align-items: start;
  background: var(--ink);
}

.visit-copy p {
  max-width: 34rem;
  color: var(--ivory-dim);
}

address {
  margin: 2.2rem 0 0;
  font-style: normal;
  font-size: 1.25rem;
  line-height: 1.6;
}

address span {
  display: block;
  margin-bottom: 0.4rem;
  font-family: "Sora", sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.visit-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem 1rem;
  padding: 1.8rem;
  border: 1px solid var(--line);
  background: var(--stone);
}

.visit-form label {
  display: block;
}

.visit-form .full,
.visit-form button,
.form-note {
  grid-column: 1 / -1;
}

.visit-form span {
  display: block;
  margin-bottom: 0.45rem;
  font-family: "Sora", sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.visit-form input,
.visit-form textarea {
  width: 100%;
  padding: 0.85rem 0.9rem;
  border: 1px solid rgba(201, 168, 106, 0.2);
  background: rgba(11, 12, 10, 0.45);
  outline: none;
}

.visit-form input:focus,
.visit-form textarea:focus {
  border-color: var(--gold);
}

.form-note {
  margin: 0;
  color: var(--taupe);
  font-size: 0.92rem;
}

.form-note.ok {
  color: var(--gold);
  white-space: pre-wrap;
}

.footer {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: end;
  gap: 2rem;
  padding-top: 2.4rem;
  padding-bottom: 2.4rem;
  border-top: 1px solid var(--line);
  background: #0a0a08;
  color: var(--taupe);
  font-size: 0.92rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.footer-brand strong {
  color: var(--ivory);
  font-size: 1.2rem;
  font-weight: 500;
}

.footer-copy {
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  animation: rise 1s var(--ease) forwards;
}

.delay-1 { animation-delay: 0.12s; }
.delay-2 { animation-delay: 0.24s; }
.delay-3 { animation-delay: 0.36s; }
.delay-4 { animation-delay: 0.48s; }

@keyframes rise {
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 980px) {
  .nav {
    grid-template-columns: 1fr auto;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links.is-open {
    display: flex;
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    background: #0b0c0a;
    z-index: 35;
  }

  .nav-links.is-open a {
    font-size: 1.3rem;
    font-family: "Noto Serif SC", serif;
    letter-spacing: 0.24em;
  }

  .hero,
  .about,
  .method,
  .visit,
  .footer,
  .service,
  .case-feature,
  .case-grid {
    grid-template-columns: 1fr;
  }

  .hero,
  .hero-copy,
  .hero-meta {
    grid-column: 1;
  }

  .hero {
    min-height: auto;
    padding-top: 8rem;
  }

  .hero-spine,
  .hero-frame {
    display: none;
  }

  .hero-meta {
    margin-top: 2.4rem;
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-top: 1.4rem;
    grid-template-columns: 1fr;
  }

  .service-b,
  .service-c,
  .service-d {
    padding-left: 0;
  }

  .service-tag {
    text-align: left;
  }

  .about-stats,
  .method-list,
  .plate-grid,
  .visit-form,
  .footer {
    grid-template-columns: 1fr;
  }

  .about,
  .services,
  .cases,
  .method,
  .license,
  .visit {
    padding: 5rem 6vw;
  }

  .license-plate {
    padding: 1.6rem 1.2rem;
  }
}

@media (max-width: 640px) {
  .service {
    gap: 0.8rem;
  }

  .service-no {
    font-size: 2.2rem;
  }

  .service h3 {
    font-size: 1.55rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}