:root {
  --ink: #171126;
  --purple: #25143d;
  --purple-soft: #3a2257;
  --pearl: #f5f1ea;
  --paper: #fffdf8;
  --amber: #eaa934;
  --amber-light: #ffd77f;
  --lavender: #b9a8d6;
  --muted: #716b79;
  --line: rgba(23, 17, 38, 0.16);
  --radius: 2rem;
  --shell: min(1180px, calc(100% - 48px));
  --shadow: 0 30px 80px rgba(31, 19, 51, 0.14);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  background: var(--pearl);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
  font: inherit;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  transform: translateY(-150%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.section {
  padding-block: clamp(90px, 12vw, 160px);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 28px;
  color: var(--amber-light);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.eyebrow span {
  width: 28px;
  height: 1px;
  background: currentColor;
}

.eyebrow.dark {
  color: #9a6714;
}

.eyebrow.light {
  color: var(--amber-light);
}

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

h1,
h2 {
  letter-spacing: -0.055em;
  line-height: 1.08;
}

h1 {
  margin-bottom: 30px;
  font-size: clamp(3.6rem, 7.3vw, 7.6rem);
  font-weight: 740;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2.65rem, 5.2vw, 5.2rem);
  font-weight: 720;
}

h1 em,
h2 em {
  color: var(--amber);
  font-family: "STKaiti", "KaiTi", serif;
  font-style: normal;
  font-weight: 500;
  letter-spacing: -0.06em;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 260ms ease, border-color 260ms ease, box-shadow 260ms ease;
}

.site-header.is-scrolled {
  border-color: rgba(23, 17, 38, 0.08);
  background: rgba(245, 241, 234, 0.9);
  box-shadow: 0 10px 30px rgba(23, 17, 38, 0.05);
  color: var(--ink);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: min(1380px, calc(100% - 48px));
  min-height: 82px;
  margin-inline: auto;
  color: var(--paper);
}

.site-header.is-scrolled .header-inner {
  color: var(--ink);
}

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

.brand-mark {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 38px;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid var(--amber);
  border-radius: 50%;
}

.brand-mark i {
  position: absolute;
  top: 17px;
  left: 10px;
  z-index: 1;
  width: 18px;
  height: 1px;
  background: currentColor;
  transform: rotate(45deg);
}

.brand-mark i + i {
  transform: rotate(-45deg);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-copy strong {
  font-size: 0.92rem;
  letter-spacing: 0.08em;
}

.brand-copy small {
  margin-top: 4px;
  opacity: 0.65;
  font-size: 0.58rem;
  letter-spacing: 0.32em;
}

.site-nav {
  display: flex;
  gap: clamp(24px, 3vw, 48px);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.site-nav a {
  position: relative;
  padding-block: 30px;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 22px;
  left: 0;
  height: 1px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-cta {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 10px 5px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.45);
  font-size: 0.8rem;
  font-weight: 700;
}

.site-header.is-scrolled .header-cta {
  border-bottom-color: rgba(23, 17, 38, 0.3);
}

.header-cta span {
  color: var(--amber);
  transition: transform 180ms ease;
}

.header-cta:hover span {
  transform: translate(2px, -2px);
}

.menu-toggle {
  display: none;
}

.hero {
  position: relative;
  min-height: 920px;
  overflow: hidden;
  background:
    radial-gradient(circle at 85% 5%, rgba(99, 64, 138, 0.35), transparent 30%),
    linear-gradient(138deg, #171126 0%, #201432 45%, #120d1e 100%);
  color: var(--paper);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(1px);
  pointer-events: none;
}

.hero-glow-one {
  top: -190px;
  right: 4%;
  width: 620px;
  height: 620px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 150px rgba(122, 72, 171, 0.15) inset;
}

.hero-glow-two {
  bottom: -360px;
  left: -260px;
  width: 720px;
  height: 720px;
  border: 120px solid rgba(234, 169, 52, 0.025);
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.05fr 0.9fr 110px;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
  min-height: 850px;
  padding-top: 120px;
}

.hero-copy {
  align-self: center;
  padding-bottom: 20px;
}

.hero-intro {
  max-width: 520px;
  margin-bottom: 42px;
  color: rgba(255, 253, 248, 0.68);
  font-size: clamp(1rem, 1.3vw, 1.16rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  min-width: 205px;
  min-height: 58px;
  padding: 14px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

.button:hover {
  transform: translateY(-3px);
}

.button-primary {
  background: var(--amber);
  color: var(--ink);
  box-shadow: 0 16px 36px rgba(234, 169, 52, 0.18);
}

.button-primary:hover {
  background: var(--amber-light);
  box-shadow: 0 20px 44px rgba(234, 169, 52, 0.25);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: rgba(255, 253, 248, 0.82);
  font-size: 0.85rem;
  font-weight: 600;
}

.play-dot {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  color: var(--amber);
  transition: border-color 180ms ease, transform 180ms ease;
}

.text-link:hover .play-dot {
  border-color: var(--amber);
  transform: rotate(90deg);
}

.hero-visual {
  position: relative;
  width: 100%;
  max-width: 465px;
  justify-self: end;
}

.visual-frame {
  position: relative;
  min-height: 610px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.17);
  border-radius: 220px 220px 22px 22px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.08), transparent 40%),
    linear-gradient(150deg, #493064, #241735 58%, #171022);
  box-shadow: 0 50px 100px rgba(0, 0, 0, 0.35);
}

.visual-frame::before {
  content: "";
  position: absolute;
  inset: 16px;
  z-index: 1;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 205px 205px 14px 14px;
  pointer-events: none;
}

.visual-topline {
  position: relative;
  z-index: 3;
  display: flex;
  justify-content: space-between;
  padding: 42px 44px 10px;
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.63rem;
  letter-spacing: 0.16em;
}

.stage {
  position: relative;
  height: 410px;
  overflow: hidden;
}

.halo {
  position: absolute;
  top: 37px;
  left: 50%;
  width: 285px;
  height: 285px;
  border: 1px solid rgba(255, 215, 127, 0.38);
  border-radius: 50%;
  box-shadow: 0 0 65px rgba(234, 169, 52, 0.12) inset, 0 0 45px rgba(234, 169, 52, 0.06);
  transform: translateX(-50%);
}

.halo::after {
  content: "";
  position: absolute;
  inset: 28px;
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: 50%;
}

.arch {
  position: absolute;
  bottom: 44px;
  width: 150px;
  height: 180px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-bottom: 0;
  border-radius: 90px 90px 0 0;
}

.arch-left {
  left: -55px;
}

.arch-right {
  right: -55px;
}

.product {
  position: absolute;
  z-index: 3;
  filter: drop-shadow(0 30px 22px rgba(9, 5, 16, 0.38));
}

.product-tall {
  bottom: 42px;
  left: 50%;
  width: 112px;
  height: 238px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 52px 52px 22px 22px;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.18), transparent 35%, rgba(14, 8, 25, 0.25)),
    linear-gradient(160deg, #9674b2, #382249 70%);
  transform: translateX(-42%);
}

.product-cap {
  position: absolute;
  top: -25px;
  left: 29px;
  width: 54px;
  height: 37px;
  border: 1px solid rgba(255, 255, 255, 0.46);
  border-radius: 9px 9px 2px 2px;
  background: linear-gradient(90deg, #d8bd7a, #8c6321);
}

.product-label {
  position: absolute;
  inset: 94px 18px 40px;
  border: 1px solid rgba(255, 225, 157, 0.65);
  border-radius: 50% 50% 42% 42%;
  background: rgba(255, 250, 236, 0.08);
}

.product-label::before,
.product-label::after,
.product-label i {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--amber-light);
  transform: translate(-50%, -50%) rotate(45deg);
}

.product-label::before {
  width: 26px;
  height: 1px;
}

.product-label::after {
  width: 1px;
  height: 26px;
}

.product-label i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.product-round {
  right: 38px;
  bottom: 45px;
  width: 120px;
  height: 120px;
  border: 1px solid rgba(255, 255, 255, 0.52);
  border-radius: 50%;
  background: radial-gradient(circle at 35% 25%, #fff0bc, #c48827 33%, #432555 80%);
}

.round-ring {
  position: absolute;
  inset: 20px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 50%;
}

.round-ring::after {
  content: "";
  position: absolute;
  inset: 25px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  box-shadow: 0 0 30px rgba(255, 235, 188, 0.5);
}

.product-box {
  bottom: 44px;
  left: 38px;
  width: 94px;
  height: 155px;
  border: 1px solid rgba(255, 255, 255, 0.48);
  border-radius: 8px;
  background: linear-gradient(140deg, #f2ce7c 0%, #b47724 52%, #48305d 52%, #281b38 100%);
  transform: rotate(-3deg);
}

.box-line {
  position: absolute;
  right: 18px;
  bottom: 20px;
  left: 18px;
  height: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
}

.stage-shadow {
  position: absolute;
  right: 22px;
  bottom: 27px;
  left: 22px;
  height: 50px;
  border-radius: 50%;
  background: rgba(7, 4, 12, 0.55);
  filter: blur(18px);
}

.visual-caption {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin: 0 34px;
  padding: 24px 10px 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.visual-caption p {
  margin: 0;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 1rem;
  line-height: 1.5;
}

.visual-caption span {
  color: rgba(255, 255, 255, 0.42);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.floating-note {
  position: absolute;
  top: 49%;
  left: -68px;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 172px;
  padding: 15px 18px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 12px;
  background: rgba(27, 18, 41, 0.72);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.25);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.floating-note i {
  position: relative;
  width: 33px;
  height: 33px;
  border: 1px solid var(--amber);
  border-radius: 50%;
}

.floating-note i::after {
  content: "";
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  background: var(--amber);
}

.floating-note span {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.65rem;
  line-height: 1.55;
  letter-spacing: 0.08em;
}

.floating-note strong {
  color: var(--paper);
  font-size: 0.76rem;
}

.hero-side {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  border-left: 1px solid rgba(255, 255, 255, 0.11);
}

.hero-side p {
  margin: 0;
  color: rgba(255,255,255,0.55);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  line-height: 1.5;
  writing-mode: vertical-rl;
}

.side-index {
  color: var(--amber);
  font-size: 0.64rem;
  letter-spacing: 0.18em;
}

.side-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(var(--amber), transparent);
}

.hero-bottom {
  position: absolute;
  right: 0;
  bottom: 28px;
  left: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 16px;
  color: rgba(255, 255, 255, 0.32);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
}

.hero-bottom i {
  flex: 1;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
}

.intro {
  display: grid;
  grid-template-columns: 0.24fr 1.18fr 0.78fr;
  gap: clamp(28px, 5vw, 76px);
}

.section-number,
.cooperation-index {
  color: rgba(23, 17, 38, 0.14);
  font-size: clamp(4rem, 7vw, 7rem);
  font-weight: 700;
  line-height: 0.85;
}

.intro-heading h2 {
  max-width: 710px;
}

.intro-copy {
  align-self: end;
  padding-bottom: 10px;
  color: var(--muted);
}

.intro-copy p {
  margin-bottom: 22px;
}

.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  margin-top: 10px;
  padding-bottom: 7px;
  border-bottom: 1px solid var(--ink);
  color: var(--ink);
  font-size: 0.84rem;
  font-weight: 700;
}

.arrow-link span {
  color: #a56d12;
  transition: transform 180ms ease;
}

.arrow-link:hover span {
  transform: translate(3px, -3px);
}

.principles {
  grid-column: 2 / 4;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 40px;
  background: var(--line);
  border-block: 1px solid var(--line);
}

.principles article {
  min-height: 220px;
  padding: 35px 34px 25px;
  background: var(--pearl);
  transition: background 220ms ease, transform 220ms ease;
}

.principles article:hover {
  background: var(--paper);
  transform: translateY(-5px);
}

.principles article > span {
  color: #aa751d;
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.principles h3 {
  margin: 35px 0 12px;
  font-size: 1.18rem;
}

.principles p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.services {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 100% 0%, rgba(105, 74, 139, 0.22), transparent 32%),
    var(--ink);
  color: var(--paper);
}

.services::after {
  content: "";
  position: absolute;
  top: -220px;
  left: -220px;
  width: 520px;
  height: 520px;
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 50%;
}

.services-head {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.35fr 0.48fr;
  gap: 60px;
  align-items: end;
  margin-bottom: 70px;
}

.services-head h2 {
  max-width: 800px;
}

.services-head > p {
  margin-bottom: 8px;
  color: rgba(255,255,255,0.55);
  font-size: 0.9rem;
}

.service-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 18px;
}

.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 465px;
  overflow: hidden;
  padding: 28px 34px 36px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 18px;
  background: rgba(255,255,255,0.035);
  transition: transform 220ms ease, border-color 220ms ease, background 220ms ease;
}

.service-card:hover {
  z-index: 2;
  border-color: rgba(255, 215, 127, 0.38);
  background: rgba(255,255,255,0.055);
  transform: translateY(-6px);
}

.service-featured {
  grid-row: span 2;
  min-height: 948px;
  background:
    linear-gradient(180deg, transparent, rgba(16, 10, 27, 0.72)),
    linear-gradient(145deg, #54346f, #281937 62%, #1b1227);
}

.service-meta {
  display: flex;
  justify-content: space-between;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(255,255,255,0.13);
  color: rgba(255,255,255,0.42);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
}

.service-content {
  position: relative;
  z-index: 2;
  margin-top: auto;
}

.service-icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin-bottom: 28px;
  border-radius: 50%;
  background: var(--amber);
  color: var(--ink);
  font-size: 1.35rem;
}

.service-icon.outline {
  border: 1px solid rgba(255, 215, 127, 0.55);
  background: transparent;
  color: var(--amber-light);
}

.service-card h3 {
  margin: 0 0 16px;
  font-size: clamp(1.45rem, 2vw, 2rem);
}

.service-card p {
  max-width: 510px;
  margin-bottom: 24px;
  color: rgba(255,255,255,0.58);
  font-size: 0.9rem;
}

.service-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.service-card li {
  padding: 7px 12px;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 999px;
  color: rgba(255,255,255,0.72);
  font-size: 0.68rem;
}

.service-orbit {
  position: absolute;
  top: 110px;
  left: 50%;
  width: 390px;
  height: 390px;
  border: 1px solid rgba(255, 215, 127, 0.22);
  border-radius: 50%;
  transform: translateX(-50%);
}

.service-orbit::before,
.service-orbit::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 50%;
}

.service-orbit::before {
  inset: 55px;
}

.service-orbit::after {
  inset: 112px;
  background: radial-gradient(circle at 40% 35%, rgba(255,216,136,0.85), #a36829 35%, #4a2d5f 70%);
  box-shadow: 0 0 85px rgba(234, 169, 52, 0.18);
}

.service-orbit i {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber-light);
  box-shadow: 0 0 18px var(--amber);
}

.service-orbit i:nth-child(1) { top: 6px; left: 160px; }
.service-orbit i:nth-child(2) { top: 205px; right: -3px; }
.service-orbit i:nth-child(3) { bottom: 42px; left: 46px; }

.method {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 60px 8vw;
}

.method-title {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
}

.method-title .eyebrow {
  grid-column: 1;
}

.method-title h2 {
  grid-column: 2;
}

.method-visual {
  align-self: start;
}

.method-frame {
  position: relative;
  min-height: 610px;
  overflow: hidden;
  border-radius: 16px 180px 16px 16px;
  background:
    linear-gradient(150deg, rgba(255,255,255,0.1), transparent 36%),
    linear-gradient(145deg, #291b3a, #4e3264 48%, #21172e);
  box-shadow: var(--shadow);
}

.grid-plane {
  position: absolute;
  right: -25%;
  bottom: -18%;
  left: -25%;
  height: 60%;
  background-image: linear-gradient(rgba(255,255,255,0.12) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.12) 1px, transparent 1px);
  background-size: 38px 38px;
  transform: perspective(380px) rotateX(58deg) rotateZ(-6deg);
}

.amber-disc,
.violet-disc {
  position: absolute;
  border-radius: 50%;
}

.amber-disc {
  top: 83px;
  right: 58px;
  width: 205px;
  height: 205px;
  background: radial-gradient(circle at 33% 26%, #fff1bf, #e3a432 40%, #9d601a 75%);
  box-shadow: 0 35px 80px rgba(234,169,52,0.28);
}

.violet-disc {
  top: 245px;
  left: 54px;
  width: 230px;
  height: 230px;
  border: 1px solid rgba(255,255,255,0.32);
  background: radial-gradient(circle at 34% 25%, #a885bf, #5c3b73 42%, #281935 80%);
  box-shadow: 0 35px 70px rgba(7,4,12,0.35);
}

.glass-card {
  position: absolute;
  right: 46px;
  bottom: 60px;
  z-index: 2;
  width: 210px;
  min-height: 134px;
  padding: 25px;
  border: 1px solid rgba(255,255,255,0.28);
  border-radius: 12px;
  background: rgba(255,255,255,0.09);
  box-shadow: 0 18px 50px rgba(0,0,0,0.25);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.glass-card span {
  display: block;
  width: 38px;
  height: 8px;
  margin-bottom: 28px;
  border-radius: 999px;
  background: var(--amber);
}

.glass-card i {
  display: block;
  width: 100%;
  height: 1px;
  margin-top: 11px;
  background: rgba(255,255,255,0.3);
}

.glass-card i:nth-of-type(2) { width: 72%; }
.glass-card i:nth-of-type(3) { width: 48%; }

.method-tag {
  position: absolute;
  top: 55px;
  left: 42px;
  color: rgba(255,255,255,0.8);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 1.15rem;
  line-height: 1.4;
}

.method-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
}

.method-step {
  min-height: 295px;
  padding: 34px 34px 35px 0;
  border-bottom: 1px solid var(--line);
}

.method-step:nth-child(odd) {
  padding-right: 38px;
  border-right: 1px solid var(--line);
}

.method-step:nth-child(even) {
  padding-left: 38px;
}

.method-step > span {
  color: #9d6b18;
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.method-step h3 {
  margin: 58px 0 13px;
  font-size: 1.18rem;
}

.method-step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.value {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  min-height: 760px;
  padding-block: 0;
  background: var(--ink);
  color: var(--paper);
}

.value-art {
  position: relative;
  min-height: 760px;
  overflow: hidden;
  background:
    linear-gradient(90deg, transparent, rgba(23,17,38,0.6)),
    radial-gradient(circle at 40% 44%, #5c3a74, #2e1b42 48%, #171126 75%);
}

.value-art::before {
  content: "";
  position: absolute;
  inset: 44px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 50% 12px 50% 12px;
}

.value-ring {
  position: absolute;
  top: 50%;
  left: 45%;
  border: 1px solid rgba(255, 218, 140, 0.32);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.ring-one {
  width: 480px;
  height: 480px;
}

.ring-two {
  width: 350px;
  height: 350px;
  border-style: dashed;
}

.value-core {
  position: absolute;
  top: 50%;
  left: 45%;
  width: 235px;
  height: 330px;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 118px;
  background:
    radial-gradient(circle at 38% 25%, rgba(255,244,208,0.85), transparent 15%),
    linear-gradient(145deg, #d59a31, #79502b 40%, #3d2752 75%);
  box-shadow: 0 60px 110px rgba(0,0,0,0.38), 0 0 75px rgba(234,169,52,0.14);
  transform: translate(-50%, -50%) rotate(12deg);
}

.value-core::after {
  content: "";
  position: absolute;
  inset: 22px;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: inherit;
}

.value-word {
  position: absolute;
  right: 12%;
  bottom: 42px;
  color: rgba(255,255,255,0.08);
  font-size: clamp(7rem, 15vw, 13rem);
  font-weight: 800;
  letter-spacing: -0.1em;
  line-height: 0.8;
}

.value-copy {
  align-self: center;
  max-width: 680px;
  padding: 80px clamp(40px, 7vw, 110px) 80px 7vw;
}

.value-copy h2 {
  margin-bottom: 56px;
  font-size: clamp(2.5rem, 4.7vw, 4.7rem);
}

.value-copy blockquote {
  margin: 0;
  padding-left: 24px;
  border-left: 1px solid var(--amber);
}

.value-copy blockquote p {
  color: rgba(255,255,255,0.65);
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 1rem;
}

.value-sign {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-top: 34px;
  color: rgba(255,255,255,0.38);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
}

.value-sign i {
  width: 42px;
  height: 1px;
  background: rgba(255,255,255,0.28);
}

.cooperation {
  display: grid;
  grid-template-columns: 0.3fr 1.4fr;
  gap: 50px;
  padding-bottom: 100px;
}

.cooperation-copy {
  max-width: 900px;
}

.cooperation-copy > p:last-child {
  max-width: 650px;
  margin: 35px 0 0;
  color: var(--muted);
}

.cooperation-path {
  grid-column: 2;
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  margin-top: 30px;
  padding-block: 35px;
  border-block: 1px solid var(--line);
}

.path-item {
  padding: 0 28px;
}

.path-item:first-child {
  padding-left: 0;
}

.path-item span {
  color: #9d6b18;
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.13em;
}

.path-item strong {
  display: block;
  margin: 14px 0 8px;
  font-size: 1.08rem;
}

.path-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.79rem;
}

.path-arrow {
  color: rgba(23,17,38,0.25);
}

.cooperation-cta {
  grid-column: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  margin-top: 20px;
  padding: 36px 40px;
  border-radius: 14px;
  background: var(--amber);
}

.cooperation-cta p {
  margin: 0;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: clamp(1.25rem, 2.2vw, 2rem);
  font-weight: 700;
}

.button-dark {
  background: var(--ink);
  color: var(--paper);
}

.button-dark:hover {
  background: var(--purple-soft);
}

.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms cubic-bezier(0.2, 0.7, 0.2, 1), transform 700ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .header-inner {
    grid-template-columns: 1fr auto;
  }

  .site-nav,
  .header-cta {
    display: none;
  }

  .menu-toggle {
    justify-self: end;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0 10px 14px;
    border: 0;
    background: transparent;
    cursor: pointer;
  }

  .menu-label {
    font-size: 0.74rem;
    font-weight: 700;
  }

  .menu-lines {
    position: relative;
    width: 28px;
    height: 20px;
  }

  .menu-lines i {
    position: absolute;
    right: 0;
    left: 0;
    top: 5px;
    height: 1px;
    background: currentColor;
    transition: transform 180ms ease, top 180ms ease;
  }

  .menu-lines i + i {
    top: 14px;
  }

  .menu-toggle[aria-expanded="true"] .menu-lines i {
    top: 10px;
    transform: rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] .menu-lines i + i {
    transform: rotate(-45deg);
  }

  .site-nav.is-open {
    position: fixed;
    inset: 81px 0 0;
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 35px 24px;
    background: rgba(23, 17, 38, 0.98);
    color: var(--paper);
  }

  .site-nav.is-open a {
    padding: 22px 8px;
    border-bottom: 1px solid rgba(255,255,255,0.12);
    font-size: 1.15rem;
  }

  .site-nav.is-open a::after {
    display: none;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    min-height: 840px;
  }

  .hero-side {
    display: none;
  }

  .visual-frame {
    min-height: 560px;
  }

  .stage {
    height: 375px;
  }

  .floating-note {
    left: -35px;
  }

  .intro {
    grid-template-columns: 0.18fr 1fr 0.75fr;
  }

  .service-featured {
    min-height: 948px;
  }

  .method {
    gap: 50px 6vw;
  }

  .method-frame {
    min-height: 570px;
  }

  .method-step {
    min-height: 300px;
  }
}

@media (max-width: 820px) {
  :root {
    --shell: min(100% - 36px, 680px);
  }

  .section {
    padding-block: 100px;
  }

  .header-inner {
    width: min(100% - 36px, 680px);
    min-height: 74px;
  }

  .site-nav.is-open {
    inset: 73px 0 0;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 65px;
    min-height: auto;
    padding-top: 160px;
    padding-bottom: 130px;
  }

  .hero-copy {
    max-width: 630px;
  }

  .hero-visual {
    max-width: 520px;
    justify-self: center;
  }

  .visual-frame {
    min-height: 630px;
  }

  .stage {
    height: 425px;
  }

  .hero-bottom {
    bottom: 24px;
  }

  .intro {
    grid-template-columns: 75px 1fr;
  }

  .intro-heading {
    grid-column: 2;
  }

  .intro-copy {
    grid-column: 2;
  }

  .principles {
    grid-column: 1 / -1;
  }

  .services-head {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .services-head > p {
    max-width: 540px;
  }

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

  .service-card,
  .service-featured {
    grid-row: auto;
    min-height: 500px;
  }

  .service-featured {
    min-height: 780px;
  }

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

  .method-title {
    grid-template-columns: 1fr;
  }

  .method-title .eyebrow,
  .method-title h2 {
    grid-column: 1;
  }

  .method-visual {
    max-width: 600px;
  }

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

  .value-art {
    min-height: 650px;
  }

  .value-copy {
    max-width: none;
    padding: 90px 9vw;
  }

  .cooperation {
    grid-template-columns: 75px 1fr;
  }

  .cooperation-path,
  .cooperation-cta {
    grid-column: 1 / -1;
  }
}

@media (max-width: 600px) {
  :root {
    --shell: calc(100% - 30px);
  }

  html {
    scroll-padding-top: 78px;
  }

  .section {
    padding-block: 78px;
  }

  .header-inner {
    width: calc(100% - 30px);
  }

  .brand-copy strong {
    font-size: 0.78rem;
  }

  .brand-copy small {
    font-size: 0.52rem;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .brand-mark i {
    top: 15px;
    left: 9px;
    width: 16px;
  }

  .menu-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
  }

  h1 {
    font-size: clamp(3.25rem, 16vw, 5rem);
  }

  h2 {
    font-size: clamp(2.3rem, 11vw, 3.5rem);
  }

  .hero-grid {
    gap: 55px;
    padding-top: 125px;
    padding-bottom: 105px;
  }

  .hero-intro {
    font-size: 0.98rem;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 22px;
  }

  .hero-visual {
    width: calc(100% - 10px);
  }

  .visual-frame {
    min-height: 525px;
    border-radius: 160px 160px 18px 18px;
  }

  .visual-frame::before {
    border-radius: 148px 148px 10px 10px;
  }

  .visual-topline {
    padding: 32px 30px 5px;
  }

  .stage {
    height: 350px;
    transform: scale(0.88);
    transform-origin: center bottom;
  }

  .halo {
    top: 18px;
  }

  .visual-caption {
    margin-inline: 24px;
    padding-inline: 0;
  }

  .visual-caption span {
    display: none;
  }

  .floating-note {
    top: 52%;
    left: -10px;
    min-width: 155px;
    transform: scale(0.9);
  }

  .hero-bottom {
    font-size: 0.54rem;
  }

  .intro {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .section-number,
  .cooperation-index {
    font-size: 3.8rem;
  }

  .intro-heading,
  .intro-copy,
  .principles {
    grid-column: 1;
  }

  .principles {
    grid-template-columns: 1fr;
    margin-top: 20px;
  }

  .principles article {
    min-height: auto;
    padding: 28px 22px;
  }

  .principles h3 {
    margin-top: 24px;
  }

  .services-head {
    margin-bottom: 45px;
  }

  .service-card,
  .service-featured {
    min-height: 475px;
    padding: 24px 22px 30px;
  }

  .service-featured {
    min-height: 660px;
  }

  .service-orbit {
    top: 105px;
    width: 320px;
    height: 320px;
  }

  .service-orbit::after {
    inset: 90px;
  }

  .method-title {
    margin-bottom: 5px;
  }

  .method-frame {
    min-height: 500px;
    border-radius: 14px 120px 14px 14px;
  }

  .amber-disc {
    top: 72px;
    right: 26px;
    width: 170px;
    height: 170px;
  }

  .violet-disc {
    top: 230px;
    left: 24px;
    width: 190px;
    height: 190px;
  }

  .glass-card {
    right: 25px;
    bottom: 38px;
    width: 180px;
  }

  .method-tag {
    top: 38px;
    left: 26px;
  }

  .method-steps {
    grid-template-columns: 1fr;
  }

  .method-step,
  .method-step:nth-child(odd),
  .method-step:nth-child(even) {
    min-height: auto;
    padding: 30px 0;
    border-right: 0;
  }

  .method-step h3 {
    margin-top: 35px;
  }

  .value-art {
    min-height: 520px;
  }

  .ring-one {
    width: 390px;
    height: 390px;
  }

  .ring-two {
    width: 290px;
    height: 290px;
  }

  .value-core {
    width: 180px;
    height: 270px;
  }

  .value-copy {
    padding: 75px 20px;
  }

  .value-copy h2 {
    margin-bottom: 42px;
  }

  .cooperation {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-bottom: 75px;
  }

  .cooperation-path,
  .cooperation-cta,
  .cooperation-copy {
    grid-column: 1;
  }

  .cooperation-path {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .path-item,
  .path-item:first-child {
    padding: 25px 0;
  }

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

  .path-arrow {
    display: none;
  }

  .cooperation-cta {
    align-items: flex-start;
    flex-direction: column;
    padding: 30px 24px;
  }

  .button-dark {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

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