:root {
  --paper: #fdf8f3;
  --paper-2: #f5f0eb;
  --ink: #262626;
  --muted: #6f6965;
  --rose: #e4a4bd;
  --rose-deep: #ca6f91;
  --line: rgba(38, 38, 38, 0.14);
  --radius: 24px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

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

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

button,
input,
textarea {
  font: inherit;
}

img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1);
  transition: filter 1s var(--ease), transform 1s var(--ease);
}

.media-frame:hover img,
.media-frame:focus-within img {
  filter: grayscale(0.15);
  transform: scale(1.035);
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 22px;
  left: 50%;
  width: min(1320px, calc(100% - 48px));
  min-height: 66px;
  padding: 10px 12px 10px 22px;
  display: grid;
  grid-template-columns: minmax(250px, 1fr) auto auto;
  gap: 28px;
  align-items: center;
  background: rgba(253, 248, 243, 0.86);
  border: 1px solid rgba(38, 38, 38, 0.08);
  border-radius: 18px;
  backdrop-filter: blur(12px);
  transform: translateX(-50%);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 34px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  color: var(--paper);
  background: var(--ink);
  border-radius: 50%;
  font-size: 10px;
  letter-spacing: -0.04em;
}

.desktop-nav {
  display: flex;
  gap: 24px;
}

.desktop-nav a {
  position: relative;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.14em;
  white-space: nowrap;
}

.desktop-nav a::after,
.text-link::after {
  position: absolute;
  content: "";
  right: 0;
  bottom: -6px;
  left: 0;
  height: 2px;
  background: var(--rose);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.6s var(--ease);
}

.desktop-nav a:hover::after,
.text-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-cta,
.button {
  display: inline-flex;
  min-height: 44px;
  padding: 0 24px;
  align-items: center;
  justify-content: center;
  gap: 18px;
  border: 0;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: color 0.6s var(--ease), background 0.6s var(--ease), transform 0.6s var(--ease);
}

.header-cta,
.button-primary {
  color: var(--ink);
  background: var(--rose);
}

.header-cta:hover,
.button:hover {
  color: var(--paper);
  background: var(--ink);
  transform: translateY(-2px);
}

main {
  overflow: clip;
}

.section {
  position: relative;
  min-height: 760px;
  padding: 140px max(72px, calc((100vw - 1296px) / 2));
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 24px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.section-index {
  position: absolute;
  top: 122px;
  left: max(24px, calc((100vw - 1390px) / 2));
  color: var(--rose-deep);
  font-size: 34px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.08em;
}

.section-index::after {
  position: absolute;
  top: 50%;
  left: calc(100% + 16px);
  content: "";
  width: 44px;
  height: 1px;
  background: var(--rose);
}

.utility {
  margin: 0 0 22px;
  color: var(--rose-deep);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.36em;
  text-transform: uppercase;
}

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

h1,
h2,
h3 {
  font-family: "League Spartan", "Arial Black", "Microsoft YaHei", "PingFang SC", sans-serif;
}

h1 {
  margin-bottom: 30px;
  font-size: clamp(74px, 9.2vw, 142px);
  line-height: 0.82;
  letter-spacing: -0.1em;
}

h1 em {
  color: var(--rose-deep);
  font-family: Georgia, "STKaiti", serif;
  font-weight: 700;
  letter-spacing: -0.06em;
}

h2 {
  margin-bottom: 28px;
  font-size: clamp(48px, 6.2vw, 92px);
  line-height: 0.95;
  letter-spacing: -0.08em;
}

h3 {
  letter-spacing: -0.05em;
}

.hero {
  min-height: 1000px;
  padding-top: 176px;
}

.hero-copy {
  grid-column: 1 / span 5;
  z-index: 2;
}

.company-name {
  display: none;
}

.hero-lead {
  max-width: 520px;
  margin-bottom: 36px;
  font-size: clamp(18px, 1.7vw, 25px);
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  gap: 26px;
  align-items: center;
}

.text-link {
  position: relative;
  display: inline-block;
  padding-bottom: 4px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.disclosure {
  margin: 38px 0 0;
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.hero-figure {
  grid-column: 6 / -1;
  height: 650px;
}

.media-frame {
  position: relative;
  margin-bottom: 0;
  overflow: hidden;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

figcaption {
  position: absolute;
  right: 16px;
  bottom: 16px;
  padding: 7px 10px;
  color: var(--paper);
  background: rgba(38, 38, 38, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 8px;
  backdrop-filter: blur(8px);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.hero-figure figcaption {
  right: auto;
  left: 16px;
}

.hero-record {
  position: absolute;
  right: max(54px, calc((100vw - 1350px) / 2));
  bottom: 96px;
  width: 190px;
  padding: 20px;
  display: grid;
  background: rgba(253, 248, 243, 0.82);
  border: 1px solid var(--line);
  border-radius: 16px;
  backdrop-filter: blur(12px);
}

.hero-record span,
.hero-record small {
  color: var(--muted);
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.2em;
}

.hero-record strong {
  margin: 8px 0;
  font-size: 20px;
}

.business,
.quality,
.signals {
  background: var(--paper-2);
}

.section-heading {
  grid-column: 1 / span 4;
  align-self: start;
}

.section-heading p:last-child,
.application-copy > p,
.manufacturing-copy > p,
.quality-copy > p,
.signals-heading > p,
.about-copy > p,
.contact-copy > p {
  max-width: 600px;
  color: var(--muted);
  font-size: 15px;
}

.business-list {
  grid-column: 5 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.business-list article {
  min-height: 260px;
  padding: 34px;
  border-left: 1px solid var(--line);
  transition: background 0.7s var(--ease);
}

.business-list article:hover {
  background: var(--rose);
}

.business-list span,
.quality-process span {
  color: var(--rose-deep);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.18em;
}

.business-list h3 {
  margin: 58px 0 18px;
  font-size: 24px;
}

.business-list p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 13px;
}

.business-figure {
  grid-column: 2 / -1;
  height: 520px;
  margin-top: 36px;
}

.application-copy {
  grid-column: 1 / span 4;
}

.application-figure {
  grid-column: 5 / -1;
  height: 560px;
}

.fact-list {
  margin: 38px 0 0;
  border-top: 1px solid var(--line);
}

.fact-list div {
  padding: 13px 0;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
}

.fact-list dt {
  font-weight: 900;
}

.fact-list dd {
  margin: 0;
  color: var(--muted);
}

.manufacturing {
  min-height: 900px;
  color: var(--paper);
  background: var(--ink);
}

.manufacturing-figure {
  grid-column: 1 / span 7;
  height: 570px;
  border-color: rgba(255, 255, 255, 0.12);
}

.manufacturing-copy {
  grid-column: 9 / -1;
}

.manufacturing-copy blockquote {
  margin-bottom: 26px;
  padding-left: 22px;
  border-left: 3px solid var(--rose);
  font-size: 24px;
  font-weight: 800;
  line-height: 1.5;
}

.manufacturing-copy > p {
  color: rgba(253, 248, 243, 0.64);
}

.text-link.light {
  color: var(--paper);
}

.quality-copy {
  grid-column: 1 / span 5;
  align-self: start;
}

.quality-process {
  grid-column: 7 / -1;
  align-self: start;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.quality-process div {
  padding: 25px 18px;
  display: grid;
  gap: 9px;
  border-left: 1px solid var(--line);
}

.quality-process strong {
  font-size: 13px;
}

.quality-process small {
  color: var(--muted);
  font-size: 10px;
}

.quality-figure {
  grid-column: 3 / -1;
  height: 520px;
  margin-top: 48px;
}

.signals-heading {
  grid-column: 1 / span 4;
  align-self: start;
}

.signal-ledger {
  grid-column: 5 / -1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.signal-ledger article {
  min-height: 320px;
  padding: 34px;
  border-left: 1px solid var(--line);
}

.signal-ledger time {
  color: var(--rose-deep);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.2em;
}

.signal-ledger h3 {
  margin: 54px 0 15px;
  font-size: 25px;
}

.signal-ledger p {
  color: var(--muted);
  font-size: 13px;
}

.signal-ledger a {
  color: var(--rose-deep);
  font-size: 11px;
  font-weight: 900;
}

.signals-figure {
  grid-column: 1 / span 8;
  height: 430px;
  margin-top: 50px;
}

.about-copy {
  grid-column: 1 / span 4;
}

.about-figure {
  grid-column: 5 / -1;
  height: 590px;
}

.public-contact {
  margin: 34px 0;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.public-contact p {
  margin-bottom: 14px;
  font-size: 13px;
}

.public-contact span {
  display: block;
  margin-bottom: 4px;
  color: var(--rose-deep);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.2em;
}

.public-contact small {
  color: var(--muted);
  font-size: 10px;
}

.contact {
  min-height: 1080px;
  padding-bottom: 0;
  align-items: start;
  color: var(--paper);
  background: var(--ink);
}

.contact-copy {
  grid-column: 1 / span 6;
}

.contact-copy > p {
  color: rgba(253, 248, 243, 0.64);
}

form {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

label {
  display: grid;
  gap: 8px;
  color: rgba(253, 248, 243, 0.7);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

input,
textarea {
  width: 100%;
  padding: 14px 16px;
  color: var(--paper);
  background: rgba(253, 248, 243, 0.06);
  border: 1px solid rgba(253, 248, 243, 0.16);
  border-radius: 9px;
  outline: none;
  font-size: 13px;
  letter-spacing: 0;
  transition: border-color 0.5s var(--ease), background 0.5s var(--ease);
}

input:focus,
textarea:focus {
  background: rgba(253, 248, 243, 0.09);
  border-color: var(--rose);
}

textarea {
  resize: vertical;
}

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

.form-status {
  margin: 4px 0 0;
  color: rgba(253, 248, 243, 0.54);
  font-size: 10px;
}

.source-panel {
  grid-column: 8 / -1;
  padding: 30px;
  background: var(--rose);
  color: var(--ink);
  border-radius: 18px;
}

.source-panel h3 {
  margin-bottom: 22px;
  font-size: 24px;
}

.source-panel ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: source;
}

.source-panel li {
  padding: 11px 0;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
  border-top: 1px solid rgba(38, 38, 38, 0.18);
  counter-increment: source;
  font-size: 11px;
  font-weight: 800;
}

.source-panel li::before {
  content: "0" counter(source);
  color: rgba(38, 38, 38, 0.5);
  font-size: 9px;
}

.contact-figure {
  grid-column: 2 / -1;
  height: 390px;
  margin-top: 46px;
  border-color: rgba(253, 248, 243, 0.13);
}

.site-footer {
  grid-column: 1 / -1;
  width: calc(100% + 2 * max(72px, calc((100vw - 1296px) / 2)));
  margin-top: 70px;
  margin-left: calc(-1 * max(72px, calc((100vw - 1296px) / 2)));
  padding: 28px max(72px, calc((100vw - 1296px) / 2));
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid rgba(253, 248, 243, 0.12);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.site-footer .disclosure {
  margin: 0;
  color: rgba(253, 248, 243, 0.62);
}

@media (max-width: 1100px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .desktop-nav {
    display: none;
  }

  .section {
    padding-right: 42px;
    padding-left: 72px;
  }

  .section-index {
    left: 22px;
  }
}

@media (max-width: 760px) {
  .site-header {
    top: 12px;
    width: calc(100% - 24px);
    min-height: 58px;
    padding: 8px 8px 8px 14px;
    gap: 10px;
    border-radius: 14px;
  }

  .brand {
    font-size: 11px;
  }

  .brand-mark {
    width: 30px;
  }

  .header-cta {
    min-height: 38px;
    padding: 0 14px;
    font-size: 9px;
  }

  .section {
    min-height: 0;
    padding: 116px 20px 86px 58px;
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .section-index {
    top: 118px;
    left: 16px;
    font-size: 25px;
  }

  .section-index::after {
    display: none;
  }

  h1 {
    font-size: clamp(74px, 23vw, 98px);
  }

  h2 {
    font-size: clamp(46px, 15vw, 68px);
  }

  .hero {
    padding-top: 132px;
  }

  .hero-copy,
  .hero-figure,
  .section-heading,
  .business-list,
  .business-figure,
  .application-copy,
  .application-figure,
  .manufacturing-figure,
  .manufacturing-copy,
  .quality-copy,
  .quality-process,
  .quality-figure,
  .signals-heading,
  .signal-ledger,
  .signals-figure,
  .about-copy,
  .about-figure,
  .contact-copy,
  .source-panel,
  .contact-figure,
  .site-footer {
    grid-column: 1;
  }

  .hero-figure {
    height: 420px;
    order: 2;
  }

  .hero-record {
    position: static;
    width: 100%;
    grid-column: 1;
    order: 3;
  }

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

  .business-list,
  .quality-process,
  .signal-ledger {
    grid-template-columns: 1fr;
  }

  .business-list article,
  .signal-ledger article {
    min-height: 220px;
  }

  .business-figure,
  .application-figure,
  .manufacturing-figure,
  .quality-figure,
  .signals-figure,
  .about-figure,
  .contact-figure {
    height: 360px;
    margin-top: 0;
  }

  .quality-process {
    grid-template-columns: repeat(2, 1fr);
  }

  .manufacturing-copy {
    order: -1;
  }

  .contact {
    padding-bottom: 0;
  }

  form {
    grid-template-columns: 1fr;
  }

  form > * {
    grid-column: 1;
  }

  .site-footer {
    width: calc(100% + 78px);
    margin: 20px 0 0 -58px;
    padding: 25px 20px 25px 58px;
    flex-direction: column;
  }
}

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

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

.mobile-nav { display: none; position: relative; }
.mobile-nav summary { display: grid; place-items: center; min-height: 40px; padding: 0 14px; border: 1px solid rgba(38,38,38,.22); border-radius: 999px; background: rgba(253,248,243,.92); font-size: 11px; cursor: pointer; list-style: none; }
.mobile-nav summary::-webkit-details-marker { display: none; }
.mobile-nav nav { position: absolute; right: 0; top: 48px; min-width: 184px; display: grid; padding: 8px; border: 1px solid rgba(38,38,38,.16); border-radius: 16px; background: rgba(253,248,243,.98); backdrop-filter: blur(12px); }
.mobile-nav nav a { padding: 12px 14px; border-bottom: 1px solid rgba(38,38,38,.1); color: #262626; font-size: 11px; }
.mobile-nav nav a:last-child { border-bottom: 0; }
@media (max-width: 1100px) { .header-cta { display: none; } .mobile-nav { display: block; } }