/* ==========================================================================
   ZHIJIANG PRECISION TOOLS — 智匠精工
   Palette: Pure White / Mist Blue / Amber / Deep Steel + neutrals
   ========================================================================== */

:root {
  --white: #ffffff;
  --bg-page: #f5f6f7;
  --paper: #f6f9fc;
  --ice: #eaf2f9;
  --mist: #dcebf6;
  --line: #dce7f0;

  --ink: #0d1f2d;
  --ink-2: #1b3548;
  --slate: #5a6f80;

  --steel-900: #0b1b2b;
  --steel-800: #0e2b40;
  --steel-700: #164a6e;
  --steel-600: #1f6a93;
  --steel-500: #2c7fa8;
  --steel-300: #9cc4de;

  --amber: #f6b93b;
  --amber-hover: #e9ab2e;
  --amber-deep: #8c5a0b;
  --amber-soft: #fbf0d9;

  --success: #2e7d5b;
  --error: #b8544a;

  --font-display: "Segoe UI", "SF Pro Display", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", "Cascadia Mono", Consolas, "Liberation Mono", monospace;

  --shadow-sm: 0 2px 10px rgba(13, 40, 61, 0.05);
  --shadow-md: 0 18px 44px rgba(13, 40, 61, 0.08);
  --shadow-lg: 0 34px 80px rgba(13, 40, 61, 0.12);

  --radius: 4px;
  --radius-lg: 6px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --container: 1280px;

  --sp-section: 88px;
  --sp-head: 40px;
  --gap-col: 56px;
  --gap-card: 24px;
  --pad-card: 20px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 108px;
  -webkit-text-size-adjust: 100%;
  background: var(--bg-page);
}

body {
  margin: 0;
  background: var(--bg-page);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
address { font-style: normal; }

::selection { background: var(--amber-soft); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--steel-600);
  outline-offset: 3px;
  border-radius: 2px;
}

.container {
  width: min(var(--container), calc(100% - 96px));
  margin-inline: auto;
  position: relative;
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- Utility ---------- */
.scroll-progress {
  position: fixed;
  inset: 0 auto auto 0;
  height: 2px;
  width: 0;
  background: var(--amber);
  z-index: 200;
  transition: width 0.1s linear;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel-600);
}

.eyebrow-index {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.eyebrow-index .eyebrow-mark {
  width: 9px;
  height: 9px;
}

.eyebrow-hero {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--steel-700);
}

.eyebrow-hero .eyebrow-mark {
  width: 9px;
  height: 9px;
}

.eyebrow-mark {
  width: 7px;
  height: 7px;
  background: var(--amber);
  flex: none;
  transform: translateY(-1px);
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(3.3rem, 6.2vw, 5.7rem);
  line-height: 0.99;
  letter-spacing: -0.045em;
  font-weight: 700;
  color: var(--ink);
}


.section {
  position: relative;
  padding: var(--sp-section) 0;
}

.section-head { margin-bottom: var(--sp-head); }

.head-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--gap-col);
  align-items: end;
  margin-top: 18px;
}

.head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.section-desc {
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate);
  max-width: 520px;
  padding-bottom: 4px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 52px;
  padding: 0 28px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: background 0.3s var(--ease), color 0.3s var(--ease),
              border-color 0.3s var(--ease), transform 0.3s var(--ease),
              box-shadow 0.3s var(--ease);
}

.btn svg { width: 17px; height: 17px; transition: transform 0.3s var(--ease); }
.btn:hover svg { transform: translateX(3px); }

.btn-dark {
  background: var(--steel-700);
  color: #fff;
  box-shadow: 0 10px 26px rgba(22, 74, 110, 0.18);
}

.btn-dark:hover {
  background: var(--steel-600);
  transform: translateY(-1px);
  box-shadow: 0 16px 34px rgba(22, 74, 110, 0.24);
}

.btn-amber {
  background: var(--amber);
  color: var(--ink);
  font-weight: 650;
}

.btn-amber:hover {
  background: var(--amber-hover);
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(246, 185, 59, 0.28);
}

.btn-line {
  background: transparent;
  border-color: var(--line);
  color: var(--ink-2);
}

.btn-line:hover {
  background: #fff;
  border-color: var(--steel-300);
  color: var(--steel-700);
}

.btn-sm { height: 44px; padding: 0 20px; font-size: 13px; }
.btn-block { width: 100%; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--steel-600);
  cursor: pointer;
}

.link-arrow svg {
  width: 15px;
  height: 15px;
  transition: transform 0.3s var(--ease);
}

.link-arrow:hover svg { transform: translateX(4px); }

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 120;
  background: rgba(255, 255, 255, 0.78);
  -webkit-backdrop-filter: blur(20px) saturate(1.25);
  backdrop-filter: blur(20px) saturate(1.25);
  border-bottom: 1px solid transparent;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease),
              box-shadow 0.35s var(--ease);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  border-bottom-color: var(--line);
  box-shadow: 0 14px 40px rgba(13, 40, 61, 0.05);
}

.header-inner {
  height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: none;
}

.brand-logo {
  display: block;
  height: 40px;
  width: auto;
  mix-blend-mode: multiply;
}

.brand-slogan {
  position: relative;
  padding-left: 17px;
  font-family: "Noto Sans SC", "Source Han Sans SC", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0.04em;
  color: var(--ink);
  white-space: nowrap;
}

.brand-slogan::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 3px;
  height: 26px;
  margin-top: -13px;
  background: linear-gradient(180deg, var(--steel-700) 0%, var(--amber) 100%);
  border-radius: 2px;
}

html[lang="en"] .brand-slogan {
  font-family: var(--font-display);
  font-size: 12.5px;
  letter-spacing: 0.06em;
}

.brand-mark {
  width: 38px;
  height: 38px;
  color: var(--steel-700);
  flex: none;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.08;
}

.brand-text strong {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--ink);
}

.brand-text em {
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate);
  margin-top: 4px;
}

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

.nav > a {
  position: relative;
  font-size: 13.5px;
  color: var(--ink-2);
  padding: 6px 0;
  transition: color 0.25s var(--ease);
}

.nav > a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1.5px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.32s var(--ease);
}

.nav > a:hover { color: var(--steel-700); }
.nav > a:hover::after { transform: scaleX(1); }
.nav > a.is-active { color: var(--steel-700); }
.nav > a.is-active::after { transform: scaleX(1); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 17px;
  border-radius: 100px;
  background: var(--amber);
  color: var(--ink) !important;
  font-weight: 650;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}

.nav-cta::after { display: none; }
.nav-cta svg { width: 14px; height: 14px; }
.nav-cta:hover { background: var(--amber-hover); transform: translateY(-1px); }

.nav-contact {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-weight: 600;
  color: var(--steel-700) !important;
}

.nav-contact svg { width: 13px; height: 13px; transition: transform 0.25s var(--ease); }
.nav-contact:hover svg { transform: translate(2px, -2px); }

.nav-mobile-actions { display: none; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 100px;
}

.lang-opt {
  min-width: 34px;
  height: 26px;
  padding: 0 8px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  color: var(--steel-600);
  transition: background 0.25s var(--ease), color 0.25s var(--ease),
              box-shadow 0.25s var(--ease);
}

.lang-opt:hover { color: var(--steel-700); }

.lang-opt.is-active {
  background: #fff;
  color: var(--ink);
  box-shadow: 0 2px 8px rgba(13, 40, 61, 0.08);
}

.lang-sep { width: 1px; height: 12px; background: var(--line); }

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border-radius: var(--radius);
}

.menu-toggle span {
  display: block;
  width: 19px;
  height: 1.6px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.3px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.3px) rotate(-45deg); }

/* ==========================================================================
   BANNER CAROUSEL
   ========================================================================== */
.brand-banner {
  position: relative;
  padding-top: 84px;
  background: var(--bg-page);
  border-bottom: 1px solid var(--line);
}

.banner-viewport {
  position: relative;
  height: clamp(240px, 25vw, 360px);
  overflow: hidden;
  background: var(--steel-900);
}

.banner-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.95s var(--ease);
}

.banner-slide.is-active {
  opacity: 1;
  pointer-events: auto;
  z-index: 2;
}

.banner-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 48%;
}

.banner-slide.is-active img {
  animation: bannerKen 1.8s var(--ease) both;
}

@keyframes bannerKen {
  from { transform: scale(1.045); }
  to { transform: scale(1); }
}

.banner-counter {
  position: absolute;
  right: 26px;
  bottom: 20px;
  z-index: 4;
  display: flex;
  align-items: baseline;
  gap: 5px;
  padding: 6px 12px;
  border-radius: 100px;
  background: rgba(11, 27, 43, 0.64);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: rgba(255, 255, 255, 0.88);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.banner-counter #bannerIndex {
  color: var(--amber);
  font-size: 11px;
}

.banner-counter .counter-sep { color: rgba(255, 255, 255, 0.4); }

.banner-panel {
  background: #fff;
  padding: 12px 0 14px;
}

.banner-panel-inner {
  display: flex;
  justify-content: center;
}

.banner-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-width: 0;
}

.banner-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.banner-dots {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-right: 10px;
}

.banner-dot {
  width: 30px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
}

.banner-dot::before {
  content: "";
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--line);
  transition: width 0.3s var(--ease), background 0.3s var(--ease);
}

.banner-dot:hover::before { background: var(--steel-500); }

.banner-dot.is-active::before {
  width: 28px;
  background: var(--steel-700);
}

.banner-btn {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #fff;
  color: var(--steel-700);
  transition: background 0.28s var(--ease), color 0.28s var(--ease),
              border-color 0.28s var(--ease), transform 0.28s var(--ease);
}

.banner-btn svg { width: 15px; height: 15px; }

.banner-btn:hover {
  background: var(--steel-700);
  border-color: var(--steel-700);
  color: #fff;
  transform: translateY(-1px);
}

.banner-toggle .icon-play { display: none; }
.banner-toggle.is-paused .icon-pause { display: none; }
.banner-toggle.is-paused .icon-play { display: block; }

.banner-progress {
  width: 100%;
  max-width: 284px;
  height: 2px;
  background: var(--line);
  overflow: hidden;
}

.banner-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left;
}

.brand-banner.is-playing .banner-progress span {
  animation: bannerBar 6s linear forwards;
}

.brand-banner.is-paused .banner-progress span {
  animation-play-state: paused;
}

@keyframes bannerBar {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  padding-top: 64px;
  overflow: hidden;
  background: linear-gradient(180deg, #fafbfc 0%, #f5f6f8 62%, var(--bg-page) 100%);
}

.hero-bg { position: absolute; inset: 0; pointer-events: none; }

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
}

.glow-a {
  width: 760px;
  height: 760px;
  right: -180px;
  top: -80px;
  background: radial-gradient(circle, rgba(156, 196, 222, 0.38), transparent 64%);
}

.glow-b {
  width: 560px;
  height: 560px;
  left: -220px;
  bottom: -140px;
  background: radial-gradient(circle, rgba(246, 185, 59, 0.13), transparent 66%);
}

.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(31, 106, 147, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(31, 106, 147, 0.07) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 74%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 74%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--gap-col);
  align-items: center;
  padding-bottom: 56px;
}

.hero-lede {
  margin-top: 20px;
  max-width: 560px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--slate);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.hero-metrics li {
  padding-right: 16px;
  border-right: 1px solid var(--line);
}

.hero-metrics li:last-child { border-right: 0; }
.hero-metrics li:not(:first-child) { padding-left: 22px; }

.metric-value {
  display: flex;
  align-items: baseline;
  gap: 4px;
  line-height: 1;
}

.metric-value b {
  font-family: var(--font-display);
  font-size: 31px;
  font-weight: 700;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}

.metric-unit {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--steel-600);
}

.metric-label {
  display: block;
  margin-top: 8px;
  font-size: 11.5px;
  color: var(--steel-600);
  letter-spacing: 0.02em;
}

/* --- Hero media --- */
.hero-media {
  position: relative;
  width: 100%;
  max-width: 560px;
  margin-left: auto;
}

.hero-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #e8e8ea;
  border: 1px solid var(--line);
  box-shadow: 0 30px 80px rgba(13, 40, 61, 0.12);
}

.hero-figure img {
  display: block;
  width: 100%;
  height: auto;
}

/* --- Marquee --- */
.marquee {
  position: relative;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7);
  padding: 14px 0;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: 0;
  width: max-content;
  animation: marquee 44s linear infinite;
}

.marquee:hover .marquee-track { animation-play-state: paused; }

.marquee-track > * { flex: none; margin-right: 44px; }

.marquee-track span {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--steel-600);
  white-space: nowrap;
}

.marquee-track i {
  width: 4px;
  height: 4px;
  background: var(--amber);
  transform: rotate(45deg);
}

@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ==========================================================================
   ABOUT
   ========================================================================== */
.about { background: var(--bg-page); }

.about-title {
  font-size: clamp(1.6rem, 2.9vw, 2.45rem);
  line-height: 1.14;
  letter-spacing: -0.03em;
}

.about-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--gap-col);
  align-items: start;
}

.about-text .lead {
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.65;
  letter-spacing: -0.012em;
  color: var(--ink-2);
  margin-bottom: 18px;
}

.about-text > p:not(.lead) {
  font-size: 14px;
  line-height: 1.85;
  color: var(--slate);
  max-width: 660px;
}

.values {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 32px;
  border-top: 1px solid var(--line);
}

.value-item {
  padding: 16px 16px 0 0;
}

.value-item .mono {
  display: block;
  font-size: 11px;
  color: var(--amber-deep);
  margin-bottom: 6px;
}

.value-item h4 {
  font-size: 14.5px;
  font-weight: 650;
  letter-spacing: 0.01em;
}

.about-facts {
  padding-left: 28px;
  border-left: 1px solid var(--line);
}

.facts-head {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--steel-700);
  margin-bottom: 16px;
}

.fact-list { margin: 0 0 24px; }

.fact-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.fact-row dt { font-size: 12.5px; color: var(--slate); }

.fact-row dd {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.fact-row dd span {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  color: var(--steel-600);
  margin-left: 4px;
  letter-spacing: 0;
}

.vision-quote {
  position: relative;
  padding-left: 18px;
  border-left: 2px solid var(--amber);
}

.vision-quote p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-2);
}

.vision-quote cite {
  display: block;
  margin-top: 8px;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--steel-700);
}


/* --- History --- */
.history { margin-top: 20px; }

.history-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.history-head .mono {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--steel-700);
}
.history-note { font-size: 12.5px; color: var(--slate); }

.timeline {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
}

.timeline li {
  padding: 16px 16px 0 0;
  position: relative;
}

.timeline li:last-child { padding-right: 0; }

.timeline li::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--amber);
}

.timeline-year {
  display: block;
  font-size: 21px;
  font-weight: 600;
  color: var(--steel-700);
  letter-spacing: 0.02em;
  margin-bottom: 8px;
}

.timeline p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
  max-width: 180px;
}

/* ==========================================================================
   PRODUCTS
   ========================================================================== */
.products {
  background: var(--bg-page);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.filter-bar {
  display: flex;
  gap: 30px;
  margin: -12px 0 32px;
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: none;
}

.filter-bar::-webkit-scrollbar { display: none; }

.filter-btn {
  position: relative;
  padding: 12px 0 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--steel-600);
  white-space: nowrap;
  transition: color 0.25s var(--ease);
}

.filter-btn::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.filter-btn:hover { color: var(--ink); }
.filter-btn.is-active { color: var(--ink); font-weight: 650; }
.filter-btn.is-active::after { transform: scaleX(1); }

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap-card);
}

.product-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.product-card.is-hidden { display: none; }

.product-media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--ice);
}

.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}

.product-media-link {
  display: block;
  width: 100%;
  height: 100%;
}

.product-media-link:focus-visible {
  outline: 2px solid var(--amber-deep);
  outline-offset: -2px;
}

.product-media-link:active { opacity: 0.92; }

.product-card:hover .product-media img { transform: scale(1.045); }

.product-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  pointer-events: none;
  padding: 5px 11px;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(220, 231, 240, 0.9);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--steel-700);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.product-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: var(--pad-card) var(--pad-card) 18px;
}

.product-code {
  font-size: 11px;
  color: var(--steel-600);
  margin-bottom: 7px;
}

.product-body h3 {
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -0.015em;
  line-height: 1.4;
  margin-bottom: 7px;
}

.product-body > p:not(.product-code) {
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
  min-height: 52px;
}

.product-foot {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid #eef4f9;
}

.product-note {
  margin-top: 32px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.8;
  color: var(--ink-2);
  max-width: 860px;
}

/* ==========================================================================
   CAPABILITY
   ========================================================================== */
.capability { background: var(--bg-page); }

.cap-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--gap-col);
  align-items: start;
}

.block-label {
  font-size: 11px;
  color: var(--steel-600);
  margin-bottom: 14px;
}

.eq-list { margin: 0; }

.eq-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 22px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.eq-row:last-child { border-bottom: 1px solid var(--line); }

.eq-row dt {
  font-size: 14.5px;
  color: var(--ink-2);
  max-width: 560px;
}

.eq-row dd {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--steel-700);
  white-space: nowrap;
  line-height: 1;
}

.eq-row dd span {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  color: var(--slate);
  margin-left: 3px;
}

.service-block { margin-top: 36px; }

.service-list {
  display: grid;
  gap: 0;
}

.service-list li {
  display: flex;
  gap: 20px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.service-list li:last-child { border-bottom: 1px solid var(--line); }

.service-no {
  flex: none;
  font-size: 11px;
  color: var(--amber-deep);
  padding-top: 4px;
}

.service-list h4 {
  font-size: 15px;
  font-weight: 650;
  margin-bottom: 6px;
}

.service-list p {
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate);
  max-width: 540px;
}

.cap-media {
  display: grid;
  gap: 16px;
}

.cap-media figure {
  position: relative;
  aspect-ratio: 2.35 / 1;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--ice);
}

.cap-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease), filter 0.6s var(--ease);
}

.cap-media figure:hover img { transform: scale(1.04); }

.media-caption {
  font-size: 11px;
  color: var(--steel-600);
  text-align: right;
  margin-top: 2px;
}



/* ==========================================================================
   CASES
   ========================================================================== */
.cases {
  background: var(--bg-page);
  border-top: 1px solid var(--line);
}

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

.case-card { display: block; }

.case-card figure {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--ice);
}

.case-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease), filter 0.5s var(--ease);
}

.case-card:hover img { transform: scale(1.05); filter: brightness(0.94); }

.case-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 10px;
  background: var(--amber);
  color: var(--ink);
  font-size: 11px;
  font-weight: 600;
  border-radius: 100px;
  letter-spacing: 0.04em;
}

.case-body {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 2px 0;
}

.case-body h3 {
  font-size: 16.5px;
  font-weight: 650;
  line-height: 1.5;
  letter-spacing: -0.01em;
  max-width: 340px;
}

.case-body .link-arrow { flex: none; padding-top: 3px; font-size: 12px; }

.case-study {
  margin-top: 40px;
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.case-study-head {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.case-study-figure {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: #e8e8ea;
}

.case-study-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.case-study-figure figcaption {
  padding: 9px 12px 10px;
  background: var(--ice);
  font-size: 11px;
  line-height: 1.65;
  color: var(--slate);
}

.case-study-intro .eyebrow { margin-bottom: 16px; }

.case-study-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.025em;
  color: var(--ink);
}

.case-study-lede {
  margin-top: 12px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--slate);
}

.case-study-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 18px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.case-study-facts > div {
  padding: 12px 14px;
  background: var(--white);
}

.case-study-facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--steel-600);
  text-transform: uppercase;
}

.case-study-facts dd {
  margin-top: 5px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-2);
  line-height: 1.5;
}

.case-study-body {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 32px;
  margin-top: 24px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.cs-block {
  padding: 14px 0;
  border-bottom: 1px solid rgba(220, 231, 240, 0.7);
}

.cs-block h4 {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 650;
  color: var(--ink);
}

.cs-index {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--amber-deep);
}

.cs-block p {
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate);
}

.cs-block p + p { margin-top: 8px; }

.cs-block ul {
  list-style: disc;
  padding-left: 17px;
  margin-top: 4px;
}

.cs-block li {
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate);
}

.cs-block li + li { margin-top: 3px; }

.cs-block b,
.cs-block strong {
  color: var(--ink-2);
  font-weight: 600;
}

.cs-block:last-child { grid-column: 1 / -1; }

.cs-note {
  margin-top: 6px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 11.5px;
  line-height: 1.75;
  color: var(--slate);
}

.cs-note b {
  color: var(--amber-deep);
  font-weight: 600;
}

@media (max-width: 900px) {
  .case-study { padding: 20px; margin-top: 32px; }
  .case-study-head { grid-template-columns: 1fr; gap: 20px; }
  .case-study-body { grid-template-columns: 1fr; gap: 0; }
  .case-study-title { font-size: 21px; }
}

@media (max-width: 560px) {
  .case-study { padding: 16px; }
  .case-study-facts { grid-template-columns: 1fr; }
}

/* ==========================================================================
   QUALITY (light)
   ========================================================================== */
.quality {
  background:
    radial-gradient(900px 500px at 88% 0%, rgba(44, 127, 168, 0.10), transparent 62%),
    linear-gradient(155deg, #fafbfc 0%, #f5f6f8 62%, #eceef1 100%);
  color: var(--ink-2);
  padding-bottom: 0;
  overflow: hidden;
}

.quality::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(31, 106, 147, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 106, 147, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(circle at 70% 30%, #000, transparent 78%);
  mask-image: radial-gradient(circle at 70% 30%, #000, transparent 78%);
  pointer-events: none;
}

.quality h2 { color: var(--ink); }

.quality .section-desc { color: var(--slate); }

.quality-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--gap-col);
  align-items: center;
}

.quality-copy h2 { margin: 18px 0 18px; }

.badge-row {
  display: flex;
  gap: 0;
  margin-top: 32px;
  border-top: 1px solid rgba(13, 40, 61, 0.14);
}

.q-badge {
  padding: 16px 24px 0 0;
  margin-right: 24px;
  border-right: 1px solid rgba(13, 40, 61, 0.12);
}

.q-badge:last-child { border-right: 0; margin-right: 0; }

.q-badge b {
  display: block;
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--amber-deep);
  line-height: 1;
  margin-bottom: 8px;
}

.q-badge b span {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--slate);
  margin-left: 3px;
}

.q-badge > span {
  font-size: 11.5px;
  color: var(--steel-600);
  letter-spacing: 0.02em;
}

.honor-panel {
  padding: 28px;
  border: 1px solid rgba(13, 40, 61, 0.12);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.78);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 24px 60px rgba(13, 40, 61, 0.06);
}

.honor-head {
  font-size: 11px;
  color: var(--steel-700);
  margin-bottom: 8px;
}

.honor-list { margin-bottom: 20px; }

.honor-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(13, 40, 61, 0.10);
  font-size: 13.5px;
  color: var(--ink-2);
}

.honor-list li em {
  font-style: normal;
  font-size: 11px;
  color: var(--steel-600);
}

.honor-panel blockquote {
  padding-top: 14px;
}

.honor-panel blockquote p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
  letter-spacing: 0.01em;
}

.honor-panel blockquote cite {
  display: block;
  margin-top: 10px;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--steel-600);
}

/* ==========================================================================
   NEWS
   ========================================================================== */
.news { background: var(--bg-page); }

.news-list { border-top: 1px solid var(--ink); }

.news-row {
  display: grid;
  grid-template-columns: 120px 96px 1fr 38px;
  align-items: center;
  gap: 22px;
  padding: 20px 10px;
  border-bottom: 1px solid var(--line);
  transition: background 0.3s var(--ease);
}

.news-row:hover { background: rgba(255, 255, 255, 0.72); }

.news-row time { font-size: 12px; color: var(--steel-600); }

.news-cat {
  font-size: 11px;
  color: var(--slate);
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 100px;
  width: max-content;
}

.news-row h3 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.012em;
  line-height: 1.5;
  transition: color 0.25s var(--ease);
}

.news-row:hover h3 { color: var(--steel-700); }

.news-arrow {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--steel-600);
  transition: background 0.3s var(--ease), color 0.3s var(--ease),
              border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.news-arrow svg { width: 13px; height: 13px; }

.news-row:hover .news-arrow {
  background: var(--steel-700);
  border-color: var(--steel-700);
  color: #fff;
  transform: translate(2px, -2px);
}

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact {
  background: var(--bg-page);
  border-top: 1px solid var(--line);
  overflow: hidden;
}

.contact-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(760px 480px at 92% 4%, rgba(246, 185, 59, 0.13), transparent 62%),
    radial-gradient(680px 500px at 2% 96%, rgba(156, 196, 222, 0.28), transparent 64%);
  pointer-events: none;
}

.contact-head { max-width: 820px; }
.contact-head h2 { margin: 18px 0 16px; }
.contact-head .section-desc { max-width: 640px; }

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--gap-col);
  align-items: start;
  margin-top: 48px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.info-block { position: relative; }

.contact-info address {
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-2);
  max-width: 420px;
  letter-spacing: -0.005em;
}

.route {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate);
  max-width: 420px;
}

.info-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.person-line {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 6px;
  font-size: 15px;
  color: var(--ink-2);
}

.person-line span { font-size: 11.5px; color: var(--slate); }

.person-line a { transition: color 0.25s var(--ease); }
.person-line a:hover { color: var(--steel-600); }

.info-strong { font-size: 15px; color: var(--ink-2); }
.info-gap { margin-top: 20px; }

.info-mail {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--steel-700);
  border-bottom: 1px solid var(--steel-300);
  padding-bottom: 2px;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.info-mail:hover { color: var(--steel-600); border-color: var(--steel-600); }

.contact-call {
  width: max-content;
  height: 50px;
  padding: 0 24px;
  gap: 9px;
}

.contact-call svg { width: 18px; height: 18px; }

.contact-form-wrap {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px 32px 28px;
  box-shadow: var(--shadow-lg);
}

.form-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.form-head h3 {
  font-size: 19px;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.form-head .mono { font-size: 11px; color: var(--steel-600); }

.form-row.two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.field { display: block; margin-bottom: 13px; }

.field > span {
  display: block;
  font-size: 11.5px;
  color: var(--slate);
  margin-bottom: 7px;
  letter-spacing: 0.02em;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfdff;
  font-size: 13.5px;
  color: var(--ink);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease),
              background 0.25s var(--ease);
}

.field input::placeholder,
.field textarea::placeholder { color: #5a6f80; }

.field input:hover,
.field select:hover,
.field textarea:hover { border-color: #c4d8e8; }

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  background: #fff;
  border-color: var(--steel-500);
  box-shadow: 0 0 0 3px rgba(31, 106, 147, 0.10);
}

.field textarea { resize: vertical; min-height: 92px; line-height: 1.7; }

.select-wrap { position: relative; }

.select-wrap select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 38px;
  cursor: pointer;
}

.select-wrap svg {
  position: absolute;
  right: 13px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: #8298a9;
  pointer-events: none;
}

.contact-form .btn-block { margin-top: 8px; }

.form-note {
  margin-top: 13px;
  font-size: 11px;
  line-height: 1.7;
  color: #5a6f80;
  text-align: center;
}

.form-success {
  margin-top: 13px;
  padding: 11px 12px;
  border-radius: var(--radius);
  background: #edf8f1;
  border: 1px solid #cbe9d6;
  color: var(--success);
  font-size: 12px;
  text-align: center;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  position: relative;
  background: var(--steel-900);
  color: #c6d6e3;
  padding-top: 64px;
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  width: 620px;
  height: 620px;
  right: -200px;
  top: -260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(44, 127, 168, 0.22), transparent 64%);
  pointer-events: none;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.55fr 0.7fr 0.7fr 0.95fr;
  gap: 36px;
  padding-bottom: 40px;
  position: relative;
  z-index: 1;
}

.brand-footer { color: #fff; }
.brand-footer .brand-mark { color: var(--steel-300); }

.footer-logo {
  display: inline-flex;
  align-items: center;
  padding: 10px 12px;
  background: #fff;
  border-radius: var(--radius);
}

.footer-logo img {
  display: block;
  height: 30px;
  width: auto;
}
.brand-footer .brand-text strong { color: #fff; }
.brand-footer .brand-text em { color: #8ba3b7; }

.footer-about {
  margin-top: 16px;
  max-width: 380px;
  font-size: 12.5px;
  line-height: 1.8;
  color: #8ba3b7;
}

.footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.footer-social a {
  padding: 5px 13px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 100px;
  font-size: 11px;
  color: #b3c7d6;
  transition: background 0.25s var(--ease), color 0.25s var(--ease),
              border-color 0.25s var(--ease);
}

.footer-social a:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
}

.footer-col h4 {
  font-size: 11.5px;
  font-weight: 650;
  color: #fff;
  letter-spacing: 0.07em;
  margin-bottom: 14px;
}

.footer-col a {
  display: block;
  font-size: 12.5px;
  color: #8ba3b7;
  margin-bottom: 9px;
  transition: color 0.22s var(--ease);
}

.footer-col a:hover { color: #fff; }

.footer-contact p {
  font-size: 12.5px;
  line-height: 1.7;
  color: #8ba3b7;
  margin-bottom: 10px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  font-size: 11px;
  color: #8ba3b7;
  position: relative;
  z-index: 1;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
}

.footer-meta a { color: #8ba3b7; transition: color 0.22s var(--ease); }
.footer-meta a:hover { color: #fff; }

.footer-meta .mono {
  font-size: 11px;
  letter-spacing: 0.09em;
  color: #7d94a8;
}

.footer-source {
  position: relative;
  z-index: 1;
  padding-bottom: 16px;
  font-size: 11px;
  line-height: 1.7;
  color: #8ba3b7;
}

.footer-wordmark {
  margin-top: 4px;
  font-family: var(--font-display);
  font-size: clamp(3rem, 12.5vw, 10.2rem);
  font-weight: 800;
  line-height: 0.76;
  letter-spacing: -0.05em;
  text-align: center;
  color: transparent;
  -webkit-text-stroke: 1px rgba(156, 196, 222, 0.13);
  user-select: none;
  pointer-events: none;
  white-space: nowrap;
}

/* ---------- Back to top ---------- */
.to-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 110;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--steel-600);
  box-shadow: 0 14px 34px rgba(13, 40, 61, 0.12);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.35s var(--ease), visibility 0.35s var(--ease),
              transform 0.35s var(--ease), background 0.25s var(--ease),
              color 0.25s var(--ease);
}

.to-top svg { width: 18px; height: 18px; }
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--steel-700); color: #fff; border-color: var(--steel-700); }

/* ==========================================================================
   IMAGE & ENTRANCE MOTION
   ========================================================================== */
html.js .reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: var(--d, 0s);
}

html.js .reveal.is-in { opacity: 1; transform: none; }

html.js .media-reveal {
  clip-path: inset(0 0 100% 0);
  transition: clip-path 1.15s var(--ease);
  transition-delay: var(--d, 0s);
}

html.js .media-reveal.is-in { clip-path: inset(0 0 0 0); }


[data-parallax] { will-change: transform; }

/* ---------- Language typography ---------- */
html[lang="en"] h1 {
  font-size: clamp(2.9rem, 5vw, 4.7rem);
  letter-spacing: -0.045em;
}

html[lang="en"] h2 {
  font-size: clamp(1.95rem, 3.1vw, 2.9rem);
  letter-spacing: -0.032em;
}

html[lang="en"] .hero-lede { font-size: 15.5px; max-width: 560px; }
html[lang="en"] .section-desc { font-size: 15px; }
html[lang="en"] .about-text .lead { font-size: 19px; }
html[lang="en"] .metric-value b { font-size: 28px; }
html[lang="en"] .metric-label { font-size: 11px; }
html[lang="en"] .product-body h3 { font-size: 16.5px; }
html[lang="en"] .case-body h3 { font-size: 15.5px; }
html[lang="en"] .case-study-title { font-size: 22px; }
html[lang="en"] .news-row h3 { font-size: 17.5px; }
html[lang="en"] .nav > a { font-size: 12.5px; }


/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1280px) {
  .container { width: calc(100% - 72px); }
  .hero-grid { gap: 44px; }
  .about-layout { gap: 44px; }
  .cap-layout, .contact-grid { gap: 44px; }
  .quality-grid { gap: 44px; }
}

@media (min-width: 1081px) and (max-width: 1230px) {
  .header-inner { gap: 20px; }
  .brand { gap: 12px; }
  .brand-slogan { padding-left: 12px; font-size: 14px; letter-spacing: 0.02em; }
  .brand-slogan::before { width: 2px; height: 22px; margin-top: -11px; }
  html[lang="en"] .brand-slogan { font-size: 11px; letter-spacing: 0.04em; }
  .nav { gap: 12px; }
  .nav > a { font-size: 13px; }
  .nav-cta { padding: 0 12px; }
}

@media (max-width: 1080px) {
  :root {
    --sp-section: 64px;
    --sp-head: 32px;
    --gap-col: 40px;
    --gap-card: 20px;
    --pad-card: 18px;
  }

  .nav {
    position: fixed;
    top: 84px;
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 36px 30px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 26px 60px rgba(13, 40, 61, 0.12);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.3s var(--ease), visibility 0.3s var(--ease),
                transform 0.3s var(--ease);
    max-height: calc(100vh - 84px);
    overflow-y: auto;
  }

  .nav.is-open { opacity: 1; visibility: visible; transform: none; }

  .nav > a {
    padding: 15px 2px;
    font-size: 15px;
    border-bottom: 1px solid #eef4f9;
  }

  .nav > a::after { display: none; }

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

  .nav-mobile-actions {
    display: grid;
    gap: 10px;
    padding-top: 22px;
  }

  .menu-toggle { display: flex; }
  body.nav-open { overflow: hidden; }

  .hero { padding-top: 64px; }
  .hero-grid { grid-template-columns: 1fr; gap: 36px; padding-bottom: 48px; }
  .hero-media { max-width: 560px; margin: 0 auto; width: 100%; }
  .hero-lede { max-width: 640px; }


  .head-grid { grid-template-columns: 1fr; gap: 24px; align-items: start; }
  .section-desc { max-width: 640px; }

  .about-layout { grid-template-columns: 1fr; gap: 32px; }
  .about-facts { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); padding-top: 24px; max-width: 560px; }

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

  .cap-layout { grid-template-columns: 1fr; gap: 32px; }
  .cap-media { max-width: 680px; }

  .quality-grid { grid-template-columns: 1fr; gap: 32px; }
  .honor-panel { max-width: 640px; }

  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .contact-form-wrap { max-width: 700px; }

  .footer-top { grid-template-columns: 1.3fr 0.7fr 0.7fr; }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  :root {
    --sp-section: 56px;
    --sp-head: 28px;
    --gap-col: 32px;
  }

  .section { padding: var(--sp-section) 0; }
  .quality { padding-bottom: 0; }
  .section-head { margin-bottom: var(--sp-head); }

  .timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 0; }
  .timeline li { border-top: 1px solid var(--line); padding: 16px 14px 16px 0; }
  .timeline li::before { top: -4px; }

  .values { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .value-item { padding-top: 18px; }

  .news-row { grid-template-columns: 100px 1fr 34px; gap: 18px; }
  .news-row .news-cat { display: none; }

  .badge-row { flex-wrap: wrap; }
  .q-badge { padding-right: 24px; margin-right: 24px; }

  .footer-top { grid-template-columns: 1fr 1fr; gap: 24px 20px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-contact { grid-column: 1 / -1; }

  .contact-form-wrap { padding: 28px 24px; }
}

@media (max-width: 720px) {
  :root {
    --sp-section: 48px;
    --sp-head: 24px;
    --gap-col: 28px;
    --gap-card: 16px;
    --pad-card: 16px;
  }

  .container { width: calc(100% - 40px); }

  .header-inner { height: 72px; }
  .nav { top: 72px; max-height: calc(100vh - 72px); padding-inline: 20px; }
  .brand-mark { width: 32px; height: 32px; }
  .brand-logo { height: 33px; }
  .brand-text strong { font-size: 13px; letter-spacing: 0.12em; }
  .brand-text em { font-size: 11px; }

  .brand { gap: 12px; }
  .brand-slogan { padding-left: 12px; font-size: 13.5px; letter-spacing: 0.02em; }
  .brand-slogan::before { width: 2px; height: 21px; margin-top: -10.5px; }
  html[lang="en"] .brand-slogan { font-size: 11px; letter-spacing: 0.05em; }

  .brand-banner { padding-top: 72px; }
  .banner-viewport { height: 200px; }
  .banner-counter { right: 14px; bottom: 12px; padding: 5px 9px; }
  .banner-panel { padding: 12px 0 14px; }
  .banner-btn { width: 38px; height: 38px; }
  .banner-dot { width: 28px; height: 38px; }

  .hero { padding-top: 56px; }
  h1 { font-size: clamp(2.7rem, 11.4vw, 3.6rem); }
  h2 { font-size: clamp(1.8rem, 7.4vw, 2.3rem); }


  .eyebrow-hero { font-size: 12.5px; letter-spacing: 0.08em; }

  .hero-lede { font-size: 14.5px; line-height: 1.85; }
  .hero-actions .btn { flex: 1 1 auto; min-width: 160px; }

  .hero-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 0;
    margin-top: 32px;
    padding-top: 16px;
  }

  .hero-metrics li:nth-child(2) { border-right: 0; }
  .hero-metrics li:nth-child(3) { padding-left: 0; }
  .hero-metrics li:nth-child(4) { padding-left: 0; }
  .metric-value b { font-size: 26px; }


  .section { padding: var(--sp-section) 0; }
  .quality { padding-bottom: 0; }
  .section-head { margin-bottom: var(--sp-head); }
  .head-grid { margin-top: 12px; }
  .section-desc { font-size: 14px; }

  .about-text .lead { font-size: 18px; }
  .about-text > p:not(.lead) { font-size: 14px; }

  .history { margin-top: 16px; }
  .timeline-year { font-size: 18px; }

  .product-grid, .case-grid { grid-template-columns: 1fr; gap: var(--gap-card); }
  .product-body > p:not(.product-code) { min-height: 0; }

  .filter-bar { gap: 24px; margin-top: -8px; margin-bottom: 26px; }

  .cap-media figure { aspect-ratio: 2.1 / 1; }


  .quality .q-badge { padding-right: 16px; margin-right: 16px; }
  .q-badge b { font-size: 24px; }
  .honor-panel { padding: 20px 18px; }

  .news-row { grid-template-columns: 1fr 32px; gap: 10px; padding: 16px 2px; }
  .news-row time { grid-column: 1 / -1; font-size: 11px; }
  .news-row h3 { font-size: 16px; }

  .contact-head h2 { margin-top: 14px; }
  .contact-grid { margin-top: 32px; }
  .info-cols { grid-template-columns: 1fr; gap: 24px; }
  .info-mail { font-size: 22px; }
  .contact-form-wrap { padding: 20px 18px 18px; }
  .form-row.two { grid-template-columns: 1fr; gap: 0; }

  .footer-top { grid-template-columns: 1fr 1fr; gap: 24px 20px; }
  .footer-brand p { max-width: 100%; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 12px; }
  .to-top { right: 16px; bottom: 16px; width: 42px; height: 42px; }

  html[lang="en"] .hero-lede { font-size: 14px; }
  html[lang="en"] .product-body h3 { font-size: 16px; }
  html[lang="en"] .case-body h3 { font-size: 15px; }
}

@media (max-width: 480px) {
  :root {
    --sp-section: 40px;
    --sp-head: 20px;
    --gap-col: 24px;
  }

  .banner-viewport { height: 176px; }

  .eyebrow-hero { font-size: 11.5px; letter-spacing: 0.06em; }

  .brand { gap: 10px; }
  .brand-slogan { max-width: 150px; padding-left: 10px; font-size: 12px; line-height: 1.3; letter-spacing: 0; white-space: normal; }
  .brand-slogan::before { width: 2px; height: 26px; margin-top: -13px; }
  html[lang="en"] .brand-slogan { max-width: 134px; font-size: 11px; line-height: 1.25; letter-spacing: 0.02em; }

  .hero-actions .btn { min-width: 100%; }


  .about-facts { max-width: 100%; }
  .values { grid-template-columns: 1fr 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .timeline li { padding-bottom: 18px; }

  .footer-meta .mono { display: none; }
  .footer-wordmark { font-size: 2.8rem; }
  html[lang="en"] h1 { font-size: clamp(2.2rem, 9.8vw, 3rem); }
}

@media (max-width: 360px) {
  .header-inner { gap: 10px; }
  .brand-logo { height: 28px; }
  .footer-logo { padding: 8px 9px; }
  .footer-logo img { height: 24px; }
  .brand-text strong { font-size: 11.5px; letter-spacing: 0.08em; }
  .brand-text em { display: none; }
  .brand { gap: 6px; }
  .brand-slogan { max-width: 92px; padding-left: 6px; font-size: 11px; }
  .brand-slogan::before { height: 20px; margin-top: -10px; }
  html[lang="en"] .brand-slogan { max-width: 92px; font-size: 11px; }
  .lang-opt { min-width: 28px; height: 24px; padding: 0 5px; }
  .q-badge { border-right: 0; margin-right: 0; padding-right: 0; width: 100%; }
}

/* ---------- Motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  html.js .reveal,
  html.js .media-reveal { opacity: 1; transform: none; clip-path: none; }


  [data-parallax] { transform: none !important; }
}

/* ==========================================================================
   PRODUCT DETAIL
   ========================================================================== */
.pd-hero {
  padding: 112px 0 64px;
  background:
    radial-gradient(760px 420px at 92% 0%, rgba(44, 127, 168, 0.08), transparent 62%),
    linear-gradient(180deg, #fafbfc 0%, var(--bg-page) 100%);
  border-bottom: 1px solid var(--line);
}

.pd-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--steel-600);
}

.pd-breadcrumb a { color: var(--steel-600); transition: color 0.25s var(--ease); }
.pd-breadcrumb a:hover { color: var(--ink); }
.pd-breadcrumb span[aria-current] { color: var(--ink-2); }

.pd-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--gap-col);
  align-items: center;
}

.pd-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ice);
  border: 1px solid var(--line);
  box-shadow: 0 34px 80px rgba(13, 40, 61, 0.10);
}

.pd-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: linear-gradient(150deg, #ffffff, #eef5fa);
}

.pd-code {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel-600);
  margin-bottom: 8px;
}

.pd-copy h1 {
  font-size: clamp(2.3rem, 4.4vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin: 0 0 12px;
}

html[lang="en"] .pd-copy h1 {
  font-size: clamp(2rem, 3.6vw, 2.9rem);
  letter-spacing: -0.03em;
}

.pd-lede {
  max-width: 560px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--slate);
}

.pd-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 22px;
  margin-top: 24px;
}

.pd-fact {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.pd-fact h3 {
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.4;
  margin-bottom: 5px;
  color: var(--ink);
}

.pd-fact p {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

.pd-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.pd-section { padding: var(--sp-section) 0; }

.pd-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-col);
}

.pd-block h2 {
  font-size: clamp(1.35rem, 2.2vw, 1.7rem);
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.pd-block p { font-size: 13.5px; line-height: 1.8; color: var(--slate); }

.pd-subhead { margin-top: 30px; }

.pd-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.pd-chip {
  padding: 6px 13px;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: #fff;
  font-size: 11.5px;
  color: var(--ink-2);
}

.pd-notes {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.pd-notes li {
  display: flex;
  gap: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.pd-notes li::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 8px;
  flex: none;
  background: var(--amber);
  border-radius: 50%;
}

@media (max-width: 1080px) {
  .pd-grid { grid-template-columns: 1fr; gap: 44px; }
  .pd-figure { max-width: 620px; }
  .pd-copy { max-width: 680px; }
}

@media (max-width: 720px) {
  .pd-hero { padding: 88px 0 48px; }
  .pd-breadcrumb { margin-bottom: 20px; }
  .pd-facts { grid-template-columns: 1fr; }
  .pd-columns { grid-template-columns: 1fr; gap: var(--gap-col); }
  .pd-section { padding: var(--sp-section) 0; }
  .pd-actions .btn { flex: 1 1 auto; }
}

@media (max-width: 480px) {
  .pd-hero { padding: 76px 0 42px; }
  .pd-copy h1 { font-size: 2rem; }
  .pd-facts { gap: 14px; }
}

/* ---------- Print ---------- */
@media print {
  .site-header, .brand-banner, .to-top, .scroll-progress, .marquee, .contact-form-wrap { display: none !important; }
  body { color: #000; }
  .section { padding: 30px 0; }
  html.js .reveal, html.js .media-reveal { opacity: 1; transform: none; clip-path: none; }
}