/* ==========================================================================
   li2co3.com — 锂资源全系列产品目录
   Design system: dark chrome + light content + lithium crimson accent
   ========================================================================== */

:root {
  --ink: #0d1626;
  --ink-2: #1b2940;
  --muted: #5d6c82;
  --muted-2: #8b97a9;
  --line: #e2e8f1;
  --line-2: #eef2f7;
  --bg: #ffffff;
  --soft: #f6f8fb;
  --soft-2: #eef2f7;
  --navy: #0a111d;
  --navy-2: #101a2b;
  --navy-3: #16233a;
  --brand: #b3123f;
  --brand-2: #8d0c31;
  --brand-soft: #fbeef2;
  --gold: #a97b2f;
  --green: #1f7a53;
  --radius: 14px;
  --radius-lg: 20px;
  --wrap: 1200px;
  --shadow-sm: 0 1px 2px rgba(13, 22, 38, 0.04), 0 8px 24px -16px rgba(13, 22, 38, 0.18);
  --shadow-md: 0 18px 50px -28px rgba(13, 22, 38, 0.3);
  --shadow-lg: 0 40px 100px -40px rgba(13, 22, 38, 0.45);
  --font: "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --mono: "SF Mono", "JetBrains Mono", "Roboto Mono", ui-monospace, Menlo, monospace;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.7 var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 650;
  color: var(--ink);
  text-wrap: balance;
}

p {
  margin: 0;
}

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

img,
svg {
  display: block;
  max-width: 100%;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

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

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

sub {
  font-size: 0.62em;
  vertical-align: -0.25em;
}

::selection {
  background: rgba(179, 18, 63, 0.16);
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 28px;
}

.icon {
  width: 20px;
  height: 20px;
  flex: none;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--ink);
  color: #fff;
  border-radius: 8px;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 12px;
}

/* ------------------------------- typography ------------------------------- */

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand);
}

.kicker::before {
  content: "";
  width: 18px;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

.kicker--light {
  color: #e7a6b7;
}

.kicker--light::before {
  background: #e7a6b7;
}

.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(179, 18, 63, 0.12);
}

.kicker--light .pulse-dot {
  background: #f0b6c5;
  box-shadow: 0 0 0 4px rgba(240, 182, 197, 0.14);
}

.section-lead {
  color: var(--muted);
  font-size: 16.5px;
  max-width: 720px;
  margin-top: 14px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand);
  white-space: nowrap;
}

.text-link .icon {
  width: 16px;
  height: 16px;
  transition: transform 0.2s;
}

.text-link:hover .icon {
  transform: translateX(4px);
}

.text-link--light {
  color: #f3c3d0;
}

.muted {
  color: var(--muted);
}

/* --------------------------------- buttons -------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 650;
  line-height: 1.2;
  transition: background 0.18s, border-color 0.18s, color 0.18s, transform 0.18s, box-shadow 0.18s;
  white-space: nowrap;
}

.btn .icon {
  width: 17px;
  height: 17px;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(180deg, #c21648, var(--brand));
  color: #fff;
  box-shadow: 0 10px 24px -12px rgba(179, 18, 63, 0.7);
}

.btn-primary:hover {
  background: linear-gradient(180deg, #ad113e, var(--brand-2));
}

.btn-outline {
  border-color: #cfd7e3;
  background: #fff;
  color: var(--ink);
}

.btn-outline:hover {
  border-color: var(--ink);
}

.btn-ghost-light {
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.04);
  color: #e9eef6;
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.36);
}

.btn-sm {
  padding: 9px 16px;
  font-size: 13.5px;
  border-radius: 8px;
}

.btn-lg {
  padding: 15px 26px;
  font-size: 15.5px;
  border-radius: 11px;
}

.btn-block {
  width: 100%;
}

/* --------------------------------- topbar -------------------------------- */

.topbar {
  background: #070d16;
  color: #8593a8;
  font-size: 12.5px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 36px;
  gap: 20px;
}

.topbar-note {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  letter-spacing: 0.02em;
}

.topbar-links {
  display: flex;
  align-items: center;
  gap: 22px;
}

.topbar-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: color 0.2s;
}

.topbar-links a:hover {
  color: #fff;
}

.topbar-links .icon {
  width: 14px;
  height: 14px;
  opacity: 0.7;
}

/* --------------------------------- header -------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(10, 17, 29, 0.92);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: #e8eef7;
  transition: box-shadow 0.25s, background 0.25s;
}

.site-header.is-scrolled {
  background: rgba(8, 14, 24, 0.98);
  box-shadow: 0 18px 40px -28px rgba(0, 0, 0, 0.8);
}

.header-bar {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 72px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  flex: none;
}

.brand-mark {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  line-height: 1;
}

.brand-mark sub {
  color: #e7a6b7;
  font-size: 0.6em;
}

.brand-sub {
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: #8d9bb0;
  padding-left: 12px;
  border-left: 1px solid rgba(255, 255, 255, 0.16);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 9px 12px;
  font-size: 14px;
  color: #aeb9c9;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}

.nav-link:hover,
.nav-link.is-active {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 3px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
}

.nav-caret {
  display: inline-flex;
  transform: rotate(90deg);
  opacity: 0.5;
}

.nav-caret .icon {
  width: 12px;
  height: 12px;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
  margin-left: auto;
}

.search-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 10px 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: #aeb9c9;
  font-size: 13px;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.search-trigger:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.08);
}

.search-trigger .icon {
  width: 16px;
  height: 16px;
}

.search-trigger kbd {
  font-family: var(--mono);
  font-size: 10.5px;
  color: #76859a;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 5px;
  padding: 1px 5px;
  margin-left: 4px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  align-items: center;
  justify-content: center;
}

.nav-toggle-lines,
.nav-toggle-lines::before,
.nav-toggle-lines::after {
  display: block;
  width: 18px;
  height: 1.5px;
  background: #dfe6f0;
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

.nav-toggle-lines {
  position: relative;
}

.nav-toggle-lines::before,
.nav-toggle-lines::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle-lines::before {
  top: -6px;
}

.nav-toggle-lines::after {
  top: 6px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-lines {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-lines::before {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-lines::after {
  transform: translateY(-6px) rotate(-45deg);
}

/* mega menu */
.mega {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  background: #0c1524;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.8);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
}

.site-header.mega-open .mega {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-inner {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 36px;
  padding-top: 28px;
  padding-bottom: 32px;
}

.mega-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 22px;
}

.mega-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 12px;
  border-radius: 10px;
  transition: background 0.18s;
}

.mega-item:hover {
  background: rgba(255, 255, 255, 0.06);
}

.mega-icon {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
  color: #e7a6b7;
}

.mega-icon .icon {
  width: 18px;
  height: 18px;
}

.mega-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.mega-copy b {
  font-size: 14px;
  font-weight: 600;
  color: #eef3fa;
}

.mega-copy small {
  font-size: 11.5px;
  color: #7f8da2;
  margin-top: 2px;
}

.mega-feature {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 22px;
  border-radius: 14px;
  background: radial-gradient(120% 120% at 100% 0%, rgba(179, 18, 63, 0.28), transparent 60%), rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.mega-feature-kicker {
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: #e7a6b7;
  text-transform: uppercase;
}

.mega-feature b {
  font-size: 19px;
  color: #fff;
}

.mega-feature p {
  font-size: 13px;
  color: #9aa8bc;
  line-height: 1.6;
}

.mega-feature .text-link {
  margin-top: auto;
  font-size: 13px;
}

/* mobile nav */
.mobile-nav {
  display: none;
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  max-height: calc(100vh - 72px);
  overflow: auto;
  background: #0a111d;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-nav-inner {
  padding: 18px 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav-inner > a {
  padding: 12px 4px;
  font-size: 16px;
  color: #dbe3ef;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.mobile-nav-cats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 14px;
  margin: 14px 0 18px;
}

.mobile-nav-cats a {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: #93a1b5;
  padding: 7px 0;
}

.mobile-nav-cats span {
  color: #63718a;
}

.mobile-nav-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
  font-size: 13.5px;
  color: #aab6c7;
}

.mobile-nav-contact a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* ---------------------------------- hero --------------------------------- */

.hero {
  position: relative;
  overflow: hidden;
  background: var(--navy);
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.hero-glow {
  position: absolute;
  width: 900px;
  height: 900px;
  right: -240px;
  top: -420px;
  background: radial-gradient(circle, rgba(179, 18, 63, 0.42) 0%, rgba(179, 18, 63, 0) 62%);
  pointer-events: none;
}

.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 20%, transparent 78%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  gap: 40px;
  align-items: center;
  padding-top: 84px;
  padding-bottom: 92px;
}

.hero-copy h1 {
  margin: 22px 0 24px;
  font-size: clamp(40px, 4.6vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.035em;
  color: #f7f9fc;
  font-weight: 650;
}

.hero-copy h1 span {
  background: linear-gradient(92deg, #f3c3d0 0%, #e7a6b7 38%, #c9d6e8 110%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  max-width: 570px;
  font-size: 16.5px;
  line-height: 1.8;
  color: #9fadc1;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-actions--left {
  justify-content: flex-start;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 28px;
  font-size: 12.5px;
  color: #7f8ea4;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-meta .icon {
  width: 14px;
  height: 14px;
  color: #e7a6b7;
}

.hero-visual {
  position: relative;
  min-height: 460px;
  display: grid;
  place-items: center;
}

.lattice {
  position: absolute;
  width: 120%;
  max-width: 640px;
  opacity: 0.9;
  transform: rotate(-6deg);
}

.element-card {
  position: relative;
  width: 272px;
  padding: 22px 24px 20px;
  border-radius: 22px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.035));
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 40px 90px -30px rgba(0, 0, 0, 0.75), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.element-card::before {
  content: "";
  position: absolute;
  left: 24px;
  right: 24px;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #e7a6b7, transparent);
}

.element-top {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 12px;
  color: #a9b6c8;
}

.element-symbol {
  font-size: 108px;
  line-height: 0.95;
  font-weight: 500;
  letter-spacing: -0.05em;
  margin: 10px 0 6px;
  background: linear-gradient(180deg, #ffffff 20%, #e7a6b7 130%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.element-name {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
  color: #eef3fa;
}

.element-name span {
  font-size: 11.5px;
  font-weight: 400;
  color: #8e9cb0;
}

.element-config {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-family: var(--mono);
  font-size: 11.5px;
  color: #9dabbd;
  letter-spacing: 0.04em;
}

.element-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 9px;
  font-size: 10.5px;
  color: #7f8da2;
}

.element-flame {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #e7a6b7;
  box-shadow: 0 0 14px 4px rgba(231, 166, 183, 0.45);
}

.hero-float {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(16, 26, 43, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 20px 40px -24px rgba(0, 0, 0, 0.8);
  font-size: 11px;
  color: #93a1b5;
  animation: float 7s ease-in-out infinite;
}

.hero-float b {
  display: block;
  font-size: 13px;
  color: #f2f6fb;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.hero-float small {
  display: block;
  font-size: 10.5px;
  color: #8b99ad;
}

.hero-float--a {
  left: -3%;
  top: 12%;
}

.hero-float--b {
  right: -4%;
  top: 28%;
  animation-delay: -2.4s;
}

.hero-float--c {
  left: -2%;
  bottom: 5%;
  animation-delay: -4.8s;
}

.hero-float-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #e7a6b7;
  box-shadow: 0 0 10px 2px rgba(231, 166, 183, 0.4);
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

/* -------------------------------- stat band ------------------------------- */

.stat-band {
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.stat {
  padding: 28px 28px 26px;
  border-left: 1px solid var(--line-2);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat:first-child {
  border-left: 0;
  padding-left: 0;
}

.stat-value {
  font-size: 32px;
  font-weight: 650;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.stat-value em {
  font-style: normal;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  margin-left: 8px;
  letter-spacing: 0;
}

.stat-label {
  font-size: 12.5px;
  color: var(--muted);
}

/* -------------------------------- sections -------------------------------- */

.section {
  padding: 92px 0;
}

.section--soft {
  background: var(--soft);
  border-top: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line-2);
}

.section--tight {
  padding-top: 56px;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 40px;
}

.section-head h2 {
  font-size: clamp(28px, 3.1vw, 38px);
  margin-top: 14px;
}

.section-action {
  flex: none;
  padding-bottom: 6px;
}

/* -------------------------------- cat grid -------------------------------- */

.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.cat-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 24px 22px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.22s, box-shadow 0.22s, border-color 0.22s;
}

.cat-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: var(--cat-accent, var(--brand));
  opacity: 0.85;
}

.cat-card:hover {
  transform: translateY(-3px);
  border-color: var(--cat-accent, var(--brand));
  box-shadow: var(--shadow-md);
}

.cat-card--all {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.cat-card--all::before {
  background: linear-gradient(90deg, var(--brand), #e7a6b7);
}

.cat-card--all:hover {
  border-color: #2b3b55;
}

.cat-card--all .cat-icon {
  background: rgba(255, 255, 255, 0.08);
  color: #f3c3d0;
}

.cat-card--all .cat-count {
  color: #7f8da2;
}

.cat-card--all .cat-en {
  color: #7f8da2;
}

.cat-card--all .cat-blurb {
  color: #9fadc1;
}

.cat-card--all .cat-samples {
  color: #7f8da2;
  border-top-color: rgba(255, 255, 255, 0.12);
}

.cat-card--all .cat-link {
  color: #f3c3d0;
}

.cat-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 11px;
  background: color-mix(in srgb, var(--cat-accent, #888) 11%, #fff);
  color: var(--cat-accent, var(--ink));
  margin-bottom: 18px;
}

.cat-icon .icon {
  width: 22px;
  height: 22px;
}

.cat-count {
  position: absolute;
  top: 24px;
  right: 22px;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--muted-2);
  letter-spacing: 0.06em;
}

.cat-card h3 {
  font-size: 19px;
  margin-bottom: 3px;
}

.cat-en {
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 12px;
}

.cat-blurb {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
  margin-bottom: 14px;
}

.cat-samples {
  font-size: 11.5px;
  color: var(--muted-2);
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  margin-top: auto;
  line-height: 1.6;
}

.cat-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--cat-accent, var(--brand));
}

.cat-link .icon {
  width: 14px;
  height: 14px;
  transition: transform 0.2s;
}

.cat-card:hover .cat-link .icon {
  transform: translateX(4px);
}

/* -------------------------------- chain band ------------------------------- */

.chain-band {
  position: relative;
  overflow: hidden;
  padding: 88px 0;
  background: var(--navy);
  color: #fff;
}

.chain-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, #000, transparent 80%);
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 80%);
  pointer-events: none;
}

.chain-band > .wrap {
  position: relative;
}

.chain-band .section-head h2 {
  color: #fff;
}

.chain-band .section-lead {
  color: #9fadc1;
}

.chain-track {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  margin-top: 10px;
}

.chain-mini {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.035);
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.chain-mini:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(231, 166, 183, 0.45);
  transform: translateY(-2px);
}

.chain-mini::after {
  content: "";
  position: absolute;
  right: -8px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-top: 1px solid rgba(255, 255, 255, 0.35);
  border-right: 1px solid rgba(255, 255, 255, 0.35);
  transform: translateY(-50%) rotate(45deg);
}

.chain-mini:last-child::after {
  display: none;
}

.chain-mini-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chain-mini-no {
  font-family: var(--mono);
  font-size: 10.5px;
  color: #7d8ba0;
}

.chain-mini-icon {
  color: #e7a6b7;
}

.chain-mini-icon .icon {
  width: 18px;
  height: 18px;
}

.chain-mini b {
  font-size: 14.5px;
  font-weight: 600;
  color: #f1f5fa;
}

.chain-mini small {
  font-size: 11px;
  color: #7f8da2;
}

.chain-band-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 28px;
  font-size: 13px;
  color: #8d9baf;
}

/* ------------------------------- quick table ------------------------------ */

.quick-table-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.quick-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  min-width: 760px;
}

.quick-table th {
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--soft);
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.quick-table td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--line-2);
  color: var(--ink-2);
  vertical-align: middle;
}

.quick-table tbody tr:last-child td {
  border-bottom: 0;
}

.quick-table tbody tr {
  transition: background 0.15s;
}

.quick-table tbody tr:hover {
  background: #fafbfd;
}

.quick-name {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.quick-name b {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.quick-name span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted-2);
}

.quick-table .num {
  font-variant-numeric: tabular-nums;
  color: var(--brand);
  font-weight: 600;
  white-space: nowrap;
}

.quick-arrow {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  transition: all 0.2s;
}

.quick-arrow:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.quick-arrow .icon {
  width: 14px;
  height: 14px;
}

/* ------------------------------- app grid -------------------------------- */

.app-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.app-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 26px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.22s, box-shadow 0.22s, border-color 0.22s;
}

.app-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: #cfd8e6;
}

.app-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 11px;
  background: var(--brand-soft);
  color: var(--brand);
  margin-bottom: 8px;
}

.app-icon .icon {
  width: 21px;
  height: 21px;
}

.app-card h3 {
  font-size: 18px;
}

.app-en {
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.app-card p {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.65;
}

.app-link {
  margin-top: auto;
  padding-top: 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.app-link .icon {
  width: 14px;
  height: 14px;
}

/* --------------------------------- split --------------------------------- */

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: 64px;
  align-items: center;
}

.split--reverse {
  grid-template-columns: minmax(0, 0.98fr) minmax(0, 1.02fr);
}

.split-copy,
.split-visual {
  min-width: 0;
}

.split-copy h2 {
  font-size: clamp(28px, 3vw, 36px);
  margin-top: 14px;
}

.split-copy > p:not(.section-lead) {
  color: var(--muted);
  font-size: 15px;
  margin-top: 18px;
}

.split-copy .btn {
  margin-top: 26px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 24px 0 0;
}

.feature-list li {
  display: flex;
  gap: 11px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

.feature-list .icon {
  width: 18px;
  height: 18px;
  color: var(--brand);
  margin-top: 2px;
}

.feature-list b {
  color: var(--ink);
  font-weight: 600;
}

.feature-list--tight {
  gap: 10px;
  margin-top: 18px;
}

/* COA card */
.coa-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: rotate(-0.6deg);
}

.coa-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--navy);
  color: #e8eef7;
  font-size: 12px;
  letter-spacing: 0.06em;
}

.coa-badge {
  font-size: 10px;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(231, 166, 183, 0.16);
  color: #f0c1ce;
  border: 1px solid rgba(231, 166, 183, 0.3);
  letter-spacing: 0.04em;
}

.coa-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  font-size: 11.5px;
  color: var(--muted);
  border-bottom: 1px solid var(--line-2);
  background: #fbfcfe;
}

.coa-card table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
}

.coa-card th {
  text-align: left;
  padding: 9px 20px;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-2);
  border-bottom: 1px solid var(--line-2);
}

.coa-card td {
  padding: 9px 20px;
  border-bottom: 1px solid var(--line-2);
  color: var(--ink-2);
}

.coa-card td.pass {
  color: var(--green);
  font-weight: 600;
}

.coa-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 20px;
  font-size: 10.5px;
  color: var(--muted-2);
  background: #fbfcfe;
}

.coa-stamp {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  color: var(--green);
  border: 1.5px solid rgba(31, 122, 83, 0.5);
  border-radius: 4px;
  padding: 2px 7px;
  transform: rotate(-6deg);
}

/* ------------------------------- route grid ------------------------------- */

.route-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.route-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 24px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.22s, box-shadow 0.22s, border-color 0.22s;
}

.route-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: #cfd8e6;
}

.route-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.route-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--soft);
  color: var(--ink-2);
}

.route-icon .icon {
  width: 20px;
  height: 20px;
}

.route-tag {
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--brand);
  border: 1px solid rgba(179, 18, 63, 0.22);
  background: var(--brand-soft);
  padding: 3px 9px;
  border-radius: 999px;
}

.route-card h3 {
  font-size: 17px;
}

.route-en {
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.route-steps {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 12px 0 16px;
  counter-reset: step;
}

.route-steps li {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12.5px;
  color: var(--muted);
}

.route-steps li::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: var(--soft-2);
  font-family: var(--mono);
  font-size: 9px;
  color: var(--muted);
  flex: none;
}

.route-link {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--line-2);
  font-size: 12px;
  font-weight: 600;
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.route-link .icon {
  width: 14px;
  height: 14px;
}

/* --------------------------------- CTA ----------------------------------- */

.cta-band {
  position: relative;
  overflow: hidden;
  padding: 76px 0;
  background: radial-gradient(120% 160% at 85% 0%, rgba(179, 18, 63, 0.38), transparent 55%), var(--navy);
  color: #fff;
}

.cta-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at 80% 0%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 80% 0%, #000, transparent 70%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.cta-inner h2 {
  margin: 14px 0 10px;
  font-size: clamp(28px, 3.2vw, 40px);
  color: #fff;
}

.cta-inner p {
  color: #a4b1c4;
  max-width: 560px;
  font-size: 15px;
}

.cta-actions {
  display: flex;
  gap: 12px;
  flex: none;
  flex-wrap: wrap;
}

/* ------------------------------- page hero -------------------------------- */

.page-hero {
  position: relative;
  padding: 46px 0 56px;
  background:
    radial-gradient(80% 120% at 100% 0%, rgba(179, 18, 63, 0.06), transparent 60%),
    linear-gradient(180deg, var(--soft) 0%, #fff 100%);
  border-bottom: 1px solid var(--line-2);
}

.page-hero--dark {
  background: var(--navy);
  color: #fff;
}

.page-hero-grid {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 48px;
  margin-top: 24px;
}

.page-hero-copy {
  max-width: 780px;
}

.page-hero h1 {
  font-size: clamp(36px, 4.3vw, 54px);
  margin: 14px 0 18px;
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}

.page-lead {
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 760px;
}

.title-count {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--brand);
  background: var(--brand-soft);
  border: 1px solid rgba(179, 18, 63, 0.2);
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0;
  transform: translateY(-6px);
}

.page-hero-aside {
  display: flex;
  align-items: stretch;
  gap: 0;
  flex: none;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(8px);
  overflow: hidden;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 16px 22px;
  border-left: 1px solid var(--line-2);
  min-width: 108px;
}

.hero-stat:first-child {
  border-left: 0;
}

.hero-stat b {
  font-size: 24px;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
}

.hero-stat span {
  font-size: 11.5px;
  color: var(--muted);
}

.cat-hero-icon {
  display: grid;
  place-items: center;
  width: 76px;
  color: var(--cat-accent, var(--brand));
  background: color-mix(in srgb, var(--cat-accent, #888) 8%, #fff);
}

.cat-hero-icon .icon {
  width: 34px;
  height: 34px;
}

/* --------------------------------- crumbs -------------------------------- */

.crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted-2);
  flex-wrap: wrap;
}

.crumbs a {
  transition: color 0.2s;
}

.crumbs a:hover {
  color: var(--brand);
}

.crumb-sep {
  opacity: 0.5;
}

.crumbs span[aria-current] {
  color: var(--muted);
}

/* ------------------------------- catalog --------------------------------- */

.catalog-section {
  padding: 0 0 88px;
}

.catalog-toolbar {
  position: sticky;
  top: 72px;
  z-index: 30;
  display: grid;
  grid-template-columns: minmax(240px, 1fr) auto;
  gap: 14px 24px;
  padding: 18px 0;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-2);
}

.catalog-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--muted-2);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.catalog-search:focus-within {
  border-color: var(--ink-2);
  box-shadow: 0 0 0 3px rgba(27, 41, 64, 0.07);
}

.catalog-search input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  font-size: 14px;
  color: var(--ink);
}

.catalog-search input::placeholder {
  color: var(--muted-2);
}

.catalog-search input::-webkit-search-cancel-button {
  display: none;
}

.clear-search {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 0;
  border-radius: 50%;
  background: var(--soft-2);
  color: var(--muted);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.clear-search.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.clear-search .icon {
  width: 12px;
  height: 12px;
}

.filter-chips {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  font-size: 13px;
  color: var(--muted);
  transition: all 0.18s;
}

.chip span {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted-2);
}

.chip:hover {
  border-color: #b9c4d4;
  color: var(--ink);
}

.chip.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.chip.is-active span {
  color: #9fadc1;
}

.filter-selects {
  display: flex;
  gap: 10px;
  align-items: center;
}

.filter-selects label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  color: var(--muted);
  white-space: nowrap;
}

.filter-selects select {
  height: 40px;
  padding: 0 30px 0 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'><path d='M1 1l4 4 4-4' fill='none' stroke='%235d6c82' stroke-width='1.4' stroke-linecap='round'/></svg>")
    no-repeat right 12px center;
  appearance: none;
  font-size: 13px;
  color: var(--ink);
}

.catalog-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0 22px;
  font-size: 12.5px;
  color: var(--muted);
}

.catalog-hint {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted-2);
}

.catalog-hint .icon {
  width: 15px;
  height: 15px;
  color: var(--brand);
}

/* product grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.product-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.22s, box-shadow 0.22s, border-color 0.22s;
  overflow: hidden;
}

.product-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: #ccd6e4;
}

.product-card.is-compared {
  border-color: var(--brand);
  box-shadow: 0 0 0 1px var(--brand);
}

.product-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 22px 22px 20px;
}

.product-card:has(.compare-check) .product-card-cat,
.product-card:has(.compare-check) h3 {
  padding-right: 30px;
}

.product-card-cat {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--muted-2);
  text-transform: uppercase;
}

.product-card-cat i {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--brand);
}

.product-card h3 {
  margin: 10px 0 2px;
  font-size: 20px;
  letter-spacing: -0.01em;
}

.product-card-en {
  font-size: 11px;
  line-height: 1.4;
  color: var(--muted-2);
  min-height: 30px;
}

.formula-chip {
  align-self: flex-start;
  margin: 10px 0 12px;
  padding: 3px 9px;
  border-radius: 5px;
  background: var(--soft);
  border: 1px solid var(--line-2);
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-2);
  letter-spacing: 0.01em;
}

.product-card-tagline {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  margin-bottom: 20px;
}

.product-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--line-2);
}

.product-card-headline {
  font-size: 12.5px;
  font-weight: 650;
  color: var(--brand);
  font-variant-numeric: tabular-nums;
}

.round-arrow {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  transition: all 0.2s;
  flex: none;
}

.round-arrow .icon {
  width: 13px;
  height: 13px;
}

.product-card:hover .round-arrow {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
  transform: rotate(-45deg);
}

.compare-check {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.18s;
}

.compare-check input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.compare-check .icon {
  width: 13px;
  height: 13px;
}

.compare-check:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.compare-check:has(input:checked) {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

.compare-check:has(input:checked) .icon {
  transform: rotate(45deg);
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 80px 24px;
  border: 1px dashed #cfd8e4;
  border-radius: var(--radius);
  text-align: center;
}

.empty-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--soft);
  color: var(--muted);
  margin-bottom: 4px;
}

.empty-state h3 {
  font-size: 18px;
}

.empty-state p {
  font-size: 13.5px;
  color: var(--muted);
  max-width: 380px;
}

.empty-state .btn {
  margin-top: 10px;
}

/* compare bar */
.compare-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  background: rgba(10, 17, 29, 0.97);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
  box-shadow: 0 -20px 40px -30px rgba(0, 0, 0, 0.8);
}

.compare-bar-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 12px 28px;
  display: flex;
  align-items: center;
  gap: 18px;
}

.compare-count {
  font-size: 12.5px;
  color: #9aa8bb;
  flex: none;
}

.compare-count b {
  color: #fff;
  font-size: 15px;
}

.compare-chips {
  display: flex;
  gap: 8px;
  flex: 1;
  overflow: hidden;
}

.compare-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 12px;
  color: #dbe3ef;
  white-space: nowrap;
}

.compare-chip button {
  border: 0;
  background: transparent;
  color: #8c9aad;
  padding: 0;
  display: grid;
  place-items: center;
}

.compare-chip .icon {
  width: 11px;
  height: 11px;
}

.compare-actions {
  display: flex;
  gap: 8px;
  flex: none;
}

/* modals */
.modal {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6, 11, 19, 0.62);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.search-panel {
  position: relative;
  width: min(720px, calc(100% - 32px));
  margin-top: 12vh;
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: modalIn 0.22s ease;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: translateY(-10px) scale(0.99);
  }
}

.search-field {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.search-field input {
  flex: 1;
  border: 0;
  outline: 0;
  font-size: 16px;
  background: transparent;
}

.search-field input::-webkit-search-cancel-button {
  display: none;
}

.search-field kbd {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted-2);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 2px 6px;
}

.search-results {
  max-height: 56vh;
  overflow: auto;
  padding: 10px;
}

.search-group-label {
  padding: 10px 12px 6px;
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.search-result {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 12px;
  border-radius: 9px;
}

.search-result:hover,
.search-result.is-active {
  background: var(--soft);
}

.search-result-main {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.search-result-main b {
  font-size: 14px;
  font-weight: 600;
}

.search-result-main small {
  font-size: 11.5px;
  color: var(--muted-2);
}

.search-result-meta {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--brand);
  white-space: nowrap;
}

.search-empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--muted);
  font-size: 13.5px;
}

.search-foot {
  display: flex;
  gap: 18px;
  padding: 10px 18px;
  border-top: 1px solid var(--line);
  font-size: 10.5px;
  color: var(--muted-2);
  background: #fbfcfe;
}

/* compare modal */
.compare-modal {
  align-items: center;
}

.compare-panel {
  position: relative;
  width: min(1080px, calc(100% - 32px));
  max-height: 86vh;
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: modalIn 0.22s ease;
}

.compare-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
}

.compare-head h2 {
  font-size: 22px;
  margin-top: 4px;
}

.icon-btn {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.icon-btn:hover {
  background: var(--soft);
}

.compare-table-wrap {
  overflow: auto;
  padding: 0 22px 22px;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
  font-size: 13px;
}

.compare-table th,
.compare-table td {
  border-bottom: 1px solid var(--line-2);
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
}

.compare-table thead th {
  position: sticky;
  top: 0;
  background: #fff;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
  z-index: 1;
}

.compare-table tbody th {
  width: 120px;
  font-size: 11.5px;
  font-weight: 500;
  color: var(--muted);
  background: #fbfcfe;
  white-space: nowrap;
}

.compare-table .cmp-name {
  font-size: 15px;
  font-weight: 650;
  color: var(--ink);
}

.compare-table .cmp-formula {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted-2);
  margin-top: 2px;
}

.compare-table .cmp-specs {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 11.5px;
  color: var(--muted);
}

/* --------------------------------- product -------------------------------- */

.product-hero {
  padding: 34px 0 46px;
  background:
    radial-gradient(70% 120% at 100% 0%, rgba(179, 18, 63, 0.07), transparent 58%),
    linear-gradient(180deg, #f8fafc, #fff);
  border-bottom: 1px solid var(--line-2);
}

.product-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 352px;
  gap: 56px;
  align-items: start;
  margin-top: 26px;
}

.eyebrow {
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand);
}

.product-hero h1 {
  font-size: clamp(36px, 4.2vw, 52px);
  margin: 10px 0 4px;
  letter-spacing: -0.035em;
}

.product-en {
  font-size: 14px;
  color: var(--muted-2);
  margin-bottom: 16px;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 14px 0 18px;
}

.badge {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--brand-soft);
  border: 1px solid rgba(179, 18, 63, 0.18);
  color: var(--brand);
  font-weight: 600;
}

.badge--ghost {
  background: #fff;
  border-color: var(--line);
  color: var(--muted);
  font-weight: 500;
}

.product-tagline {
  font-size: 16px;
  color: var(--muted);
  max-width: 620px;
  line-height: 1.75;
}

.product-headline {
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  margin-top: 24px;
  padding: 12px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--brand);
  border-radius: 8px;
  background: #fff;
}

.product-headline span {
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.product-headline b {
  font-size: 17px;
  font-weight: 650;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

/* inquiry card */
.inquiry-card {
  padding: 26px 24px;
  border-radius: 16px;
  background: radial-gradient(120% 100% at 100% 0%, rgba(179, 18, 63, 0.32), transparent 58%), var(--navy);
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.inquiry-kicker {
  font-size: 10px;
  letter-spacing: 0.18em;
  color: #e7a6b7;
}

.inquiry-card h3 {
  font-size: 22px;
  color: #fff;
  margin: 8px 0 10px;
}

.inquiry-card p {
  font-size: 13px;
  line-height: 1.7;
  color: #9fadc1;
}

.inquiry-card .btn {
  margin-top: 18px;
}

.inquiry-phone,
.inquiry-mail {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: 12px;
  font-size: 13px;
  color: #c6d2e2;
}

.inquiry-phone .icon,
.inquiry-mail .icon {
  width: 15px;
  height: 15px;
  color: #e7a6b7;
}

.inquiry-phone:hover,
.inquiry-mail:hover {
  color: #fff;
}

.inquiry-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.inquiry-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  color: #93a1b5;
}

.inquiry-list .icon {
  width: 13px;
  height: 13px;
  color: #8fd0b2;
}

/* detail layout */
.detail-section {
  padding: 56px 0 96px;
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 336px;
  gap: 64px;
  align-items: start;
}

.prose {
  min-width: 0;
}

.prose-section {
  padding: 0 0 44px;
  margin-bottom: 44px;
  border-bottom: 1px solid var(--line-2);
}

.prose-section:last-of-type {
  border-bottom: 0;
  margin-bottom: 24px;
}

.prose h2 {
  position: relative;
  font-size: 25px;
  padding-left: 16px;
  margin-bottom: 20px;
}

.prose h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  bottom: 5px;
  width: 3px;
  border-radius: 3px;
  background: var(--brand);
}

.prose-section > p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.prose-note {
  font-size: 12.5px;
  color: var(--muted-2);
  margin-top: 14px;
  line-height: 1.7;
}

.highlight-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 20px;
}

.highlight-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 12px 13px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fbfcfe;
  font-size: 12.5px;
  color: var(--ink-2);
  line-height: 1.5;
}

.highlight-list .icon {
  width: 15px;
  height: 15px;
  color: var(--brand);
  margin-top: 1px;
}

.spec-figure {
  margin: 0;
}

.spec-caption {
  display: none;
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  min-width: 520px;
  font-variant-numeric: tabular-nums;
}

.spec-table thead th {
  background: var(--soft);
  text-align: right;
  padding: 11px 16px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.spec-table thead th:first-child {
  text-align: left;
}

.spec-table tbody th {
  text-align: left;
  font-weight: 500;
  color: var(--muted);
  padding: 10px 16px;
  border-bottom: 1px solid var(--line-2);
  white-space: nowrap;
}

.spec-table tbody td {
  text-align: right;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line-2);
  color: var(--ink-2);
  font-weight: 550;
}

.spec-table tbody tr:last-child th,
.spec-table tbody tr:last-child td {
  border-bottom: 0;
}

.spec-table tbody tr:hover {
  background: #fafbfd;
}

.spec-table--compact {
  font-size: 12.5px;
}

.table-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 10px;
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--muted-2);
}

.table-note .icon {
  width: 14px;
  height: 14px;
  margin-top: 2px;
  flex: none;
  color: var(--muted);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.std-chip {
  font-family: var(--mono);
  font-size: 11.5px;
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fbfcfe;
  color: var(--ink-2);
}

.app-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.app-link-chip {
  font-size: 12.5px;
  padding: 7px 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink-2);
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.info-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #fbfcfe;
}

.info-icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--brand);
  margin-bottom: 12px;
}

.info-icon .icon {
  width: 18px;
  height: 18px;
}

.info-card h3 {
  font-size: 14px;
  margin-bottom: 6px;
}

.info-card p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 8px;
}

.pager a {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  transition: border-color 0.2s, background 0.2s;
}

.pager a:hover {
  border-color: var(--ink);
  background: #fbfcfe;
}

.pager span {
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--muted-2);
}

.pager b {
  font-size: 14px;
  font-weight: 600;
}

.pager-next {
  text-align: right;
  align-items: flex-end;
}

.detail-side {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.fact-card,
.side-doc {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #fff;
}

.side-title {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
  font-weight: 600;
}

.fact-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0;
}

.fact-list > div {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 8px 0;
  border-bottom: 1px dashed var(--line-2);
  font-size: 12.5px;
}

.fact-list > div:last-child {
  border-bottom: 0;
}

.fact-list dt {
  color: var(--muted-2);
  flex: none;
}

.fact-list dd {
  margin: 0;
  text-align: right;
  color: var(--ink-2);
  font-weight: 500;
}

.side-doc p {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 10px;
}

.side-cat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 18px 22px;
  border-radius: 13px;
  background: var(--navy);
  color: #fff;
}

.side-cat span {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #8d9bb0;
}

.side-cat b {
  font-size: 17px;
  font-weight: 600;
}

.side-cat small {
  font-size: 10.5px;
  color: #7f8da2;
}

/* ------------------------------- category -------------------------------- */

.cat-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--brand);
  border-radius: 8px;
  background: #fbfcfe;
  margin-bottom: 28px;
}

.cat-note .icon {
  color: var(--brand);
  width: 18px;
  height: 18px;
  margin-top: 2px;
}

.cat-note p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
}

.cat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.cat-strip a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  font-size: 13.5px;
  transition: border-color 0.2s, transform 0.2s;
}

.cat-strip a:hover {
  border-color: var(--cat-accent, var(--brand));
  transform: translateY(-2px);
}

.cat-strip a.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.cat-strip span {
  font-family: var(--mono);
  font-size: 9.5px;
  color: var(--muted-2);
}

.cat-strip a.is-active span {
  color: #9fadc1;
}

/* ---------------------------------- chain -------------------------------- */

.chain-overview {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fbfcfe;
  overflow-x: auto;
  margin-bottom: 34px;
}

.chain-overview a {
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 6px 10px;
  border-radius: 7px;
  min-width: 104px;
  transition: background 0.2s;
}

.chain-overview a:hover {
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.chain-overview span {
  font-family: var(--mono);
  font-size: 9.5px;
  color: var(--brand);
}

.chain-overview b {
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}

.chain-overview small {
  font-size: 9.5px;
  color: var(--muted-2);
  white-space: nowrap;
}

.chain-overview i {
  color: #c3ccd9;
  flex: none;
}

.chain-overview i .icon {
  width: 13px;
  height: 13px;
}

.chain-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chain-stage {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) 300px;
  gap: 32px;
  align-items: start;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.chain-stage-body {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.chain-metrics {
  margin-top: 0;
}

.chain-products {
  align-content: start;
}

.chain-stage-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.chain-no {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted-2);
  padding-top: 3px;
}

.chain-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--brand-soft);
  color: var(--brand);
  flex: none;
}

.chain-icon .icon {
  width: 21px;
  height: 21px;
}

.chain-stage-head h3 {
  font-size: 18px;
}

.chain-stage-head p {
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.chain-desc {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

.chain-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 14px;
}

.chain-metrics span {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.chain-metrics small {
  font-size: 10px;
  color: var(--muted-2);
}

.chain-metrics b {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}

.chain-products {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  align-content: start;
  border-left: 1px solid var(--line-2);
  padding-left: 24px;
}

.chain-products a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 7px 9px;
  border-radius: 6px;
  font-size: 12.5px;
  color: var(--ink-2);
  transition: background 0.15s, color 0.15s;
}

.chain-products a:hover {
  background: var(--soft);
  color: var(--brand);
}

.chain-products .icon {
  width: 13px;
  height: 13px;
  opacity: 0.5;
}

.conversion-inline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 24px 0;
}

.conversion-inline > div {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  font-size: 12px;
}

.conversion-inline span {
  font-family: var(--mono);
  color: var(--muted);
}

.conversion-inline b {
  font-size: 14px;
  color: var(--brand);
  font-variant-numeric: tabular-nums;
}

.conversion-inline small {
  font-size: 10.5px;
  color: var(--muted-2);
  margin-left: auto;
}

.flow-card {
  padding: 28px;
  border-radius: 16px;
  background: var(--navy);
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.flow-label {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #e7a6b7;
  display: block;
  margin-bottom: 16px;
}

.flow-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  color: #c3cede;
}

.flow-row b {
  font-family: var(--mono);
  font-size: 14px;
  color: #fff;
}

.flow-op {
  padding: 6px 16px;
  font-family: var(--mono);
  font-size: 11px;
  color: #e7a6b7;
}

.flow-row--result {
  background: rgba(179, 18, 63, 0.18);
  border-color: rgba(231, 166, 183, 0.3);
}

.flow-row--result b {
  color: #f3c3d0;
}

.flow-note {
  margin-top: 16px;
  font-size: 10.5px;
  color: #7f8da2;
  line-height: 1.6;
}

/* ------------------------------- applications ----------------------------- */

.app-nav {
  position: sticky;
  top: 72px;
  z-index: 30;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-2);
}

.app-nav .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 6px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.app-nav a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 12px;
  border-radius: 8px;
  font-size: 12.5px;
  color: var(--muted);
  white-space: nowrap;
  transition: background 0.2s, color 0.2s;
}

.app-nav a:hover {
  background: var(--soft);
  color: var(--ink);
}

.app-nav .icon {
  width: 15px;
  height: 15px;
}

.app-sections {
  display: flex;
  flex-direction: column;
}

.app-section {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 56px;
  padding: 52px 0;
  border-bottom: 1px solid var(--line-2);
  scroll-margin-top: 140px;
}

.app-section:first-child {
  padding-top: 18px;
}

.app-section:last-child {
  border-bottom: 0;
}

.app-index {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--brand);
}

.app-section h2 {
  font-size: 30px;
  margin: 8px 0 14px;
}

.app-section-copy > p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.app-section-products {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #fbfcfe;
  align-self: start;
}

.app-products-label {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-2);
  padding: 2px 8px 8px;
}

.app-product {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--line-2);
  transition: border-color 0.2s, transform 0.2s;
}

.app-product:hover {
  border-color: #cdd7e4;
  transform: translateX(2px);
}

.app-product span {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.app-product b {
  font-size: 13px;
  font-weight: 600;
}

.app-product small {
  font-size: 11px;
  color: var(--brand);
  font-variant-numeric: tabular-nums;
}

.app-product .icon {
  width: 14px;
  height: 14px;
  color: var(--muted-2);
}

/* --------------------------------- routes -------------------------------- */

.route-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.route-detail {
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  scroll-margin-top: 110px;
}

.route-detail-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
}

.route-detail-title {
  display: flex;
  align-items: center;
  gap: 14px;
}

.route-index {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted-2);
}

.route-icon--lg {
  width: 48px;
  height: 48px;
  border-radius: 12px;
}

.route-icon--lg .icon {
  width: 24px;
  height: 24px;
}

.route-detail-title h2 {
  font-size: 26px;
}

.route-detail-title p {
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.route-metrics {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.route-metrics span {
  display: flex;
  flex-direction: column;
  gap: 1px;
  text-align: right;
}

.route-metrics small {
  font-size: 10px;
  color: var(--muted-2);
}

.route-metrics b {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.route-desc {
  margin: 18px 0 26px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 980px;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  padding: 20px;
  background: var(--soft);
  border-radius: 11px;
}

.process-steps li {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  padding-right: 8px;
  border-right: 1px dashed #d8e0eb;
}

.process-steps li:last-child {
  border-right: 0;
}

.process-steps li > span {
  font-family: var(--mono);
  font-size: 9.5px;
  color: var(--brand);
  padding-top: 2px;
}

.process-steps div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.process-steps b {
  font-size: 12.5px;
  font-weight: 600;
}

.process-steps small {
  font-size: 10.5px;
  line-height: 1.5;
  color: var(--muted-2);
}

.route-products {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.route-products a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  font-size: 12px;
  color: var(--ink-2);
  transition: all 0.18s;
}

.route-products a:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.route-products .icon {
  width: 12px;
  height: 12px;
  opacity: 0.6;
}

/* -------------------------------- quality -------------------------------- */

.qc-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.qc-step {
  position: relative;
  padding: 26px 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.qc-step::after {
  content: "";
  position: absolute;
  right: -8px;
  top: 34px;
  width: 6px;
  height: 6px;
  border-top: 1px solid #c3ccd9;
  border-right: 1px solid #c3ccd9;
  transform: rotate(45deg);
}

.qc-step:last-child::after {
  display: none;
}

.qc-no {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--brand);
}

.qc-step h3 {
  font-size: 17px;
  margin: 10px 0 8px;
}

.qc-step p {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.mini-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}

.mini-table th {
  text-align: left;
  background: var(--soft);
  padding: 10px 14px;
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.mini-table td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--line-2);
  color: var(--ink-2);
}

.mini-table tr:last-child td {
  border-bottom: 0;
}

.pack-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.pack-card {
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.pack-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--brand-soft);
  color: var(--brand);
  margin-bottom: 14px;
}

.pack-icon .icon {
  width: 20px;
  height: 20px;
}

.pack-card h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.pack-card p {
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--muted);
}

.quality-note {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.quality-note > div {
  display: flex;
  gap: 12px;
  padding: 16px 18px;
  border-radius: 10px;
  background: var(--soft);
}

.quality-note .icon {
  color: var(--brand);
  width: 18px;
  height: 18px;
  flex: none;
  margin-top: 2px;
}

.quality-note b {
  display: block;
  font-size: 12.5px;
  margin-bottom: 2px;
}

.quality-note span {
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* -------------------------------- glossary -------------------------------- */

.calc-card {
  padding: 34px;
  border-radius: 18px;
  background: radial-gradient(120% 130% at 100% 0%, rgba(179, 18, 63, 0.35), transparent 55%), var(--navy);
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.calc-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.calc-head h2 {
  font-size: 30px;
  color: #fff;
  margin: 10px 0 8px;
}

.calc-head p {
  font-size: 13.5px;
  line-height: 1.7;
  color: #9fadc1;
  max-width: 620px;
}

.calc-icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #e7a6b7;
  flex: none;
}

.calc-icon .icon {
  width: 26px;
  height: 26px;
}

.calc-form {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  margin-top: 26px;
  flex-wrap: wrap;
}

.calc-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: #93a1b5;
}

.calc-field input,
.calc-field select {
  height: 46px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  font-size: 14px;
  min-width: 220px;
}

.calc-field input {
  min-width: 150px;
}

.calc-field select option {
  color: var(--ink);
}

.calc-field input:focus,
.calc-field select:focus {
  outline: 2px solid rgba(231, 166, 183, 0.5);
  border-color: transparent;
}

.calc-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 24px;
}

.calc-result {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 15px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
}

.calc-result span {
  font-size: 11.5px;
  color: #93a1b5;
}

.calc-result b {
  font-family: var(--mono);
  font-size: 14px;
  color: #fff;
  font-weight: 500;
}

.calc-result.is-primary {
  background: rgba(179, 18, 63, 0.22);
  border-color: rgba(231, 166, 183, 0.35);
}

.calc-result.is-primary b {
  color: #f3c3d0;
}

.calc-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  font-size: 11px;
  color: #7f8da2;
}

.calc-note .icon {
  width: 14px;
  height: 14px;
}

.conversion-table code {
  font-family: var(--mono);
  font-size: 11.5px;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--soft);
}

.conversion-table .num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

.glossary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

.glossary-item {
  background: #fff;
  padding: 20px 22px;
}

.glossary-term {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.glossary-term b {
  font-size: 15px;
  font-weight: 650;
}

.glossary-term span {
  font-size: 10px;
  letter-spacing: 0.03em;
  color: var(--muted-2);
}

.glossary-item p {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* --------------------------------- about --------------------------------- */

.about-panel {
  padding: 26px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
}

.about-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 0;
  border-bottom: 1px solid var(--line-2);
  font-size: 13px;
}

.about-row span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
}

.about-row .icon {
  width: 16px;
  height: 16px;
  color: var(--brand);
}

.about-row b {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
}

.about-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  font-size: 13px;
  font-weight: 600;
}

.about-total b {
  font-family: var(--mono);
  font-size: 20px;
  color: var(--brand);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.value-card {
  padding: 26px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.value-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--brand-soft);
  color: var(--brand);
  margin-bottom: 14px;
}

.value-icon .icon {
  width: 20px;
  height: 20px;
}

.value-card h3 {
  font-size: 17px;
  margin-bottom: 7px;
}

.value-card p {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.coverage-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}

.coverage-card {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}

.coverage-card span {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--brand);
}

.coverage-card b {
  font-size: 13.5px;
  font-weight: 600;
}

.coverage-card small {
  font-size: 10.5px;
  color: var(--muted-2);
}

.disclaimer {
  margin-top: 36px;
  padding: 24px;
  border-radius: 12px;
  background: var(--soft);
  border: 1px solid var(--line-2);
}

.disclaimer h3 {
  font-size: 14px;
  margin-bottom: 8px;
}

.disclaimer p {
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* --------------------------------- contact -------------------------------- */

.contact-grid {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}

.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-card {
  display: flex;
  gap: 14px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  transition: border-color 0.2s, transform 0.2s;
}

a.contact-card:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
}

.contact-card > span {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--brand-soft);
  color: var(--brand);
  flex: none;
}

.contact-card .icon {
  width: 19px;
  height: 19px;
}

.contact-card div {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.contact-card small {
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.contact-card b {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  word-break: break-word;
}

.contact-card p {
  font-size: 11.5px;
  color: var(--muted);
  line-height: 1.5;
}

.contact-aside {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 16px 22px;
  min-width: 170px;
}

.contact-aside span {
  color: var(--brand);
}

.contact-aside b {
  font-size: 20px;
  letter-spacing: -0.02em;
}

.contact-aside small {
  font-size: 11px;
  color: var(--muted);
}

.inquiry-form {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.inquiry-form h2 {
  font-size: 25px;
  margin-bottom: 6px;
}

.form-intro {
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 20px;
}

.inquiry-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 11.5px;
  color: var(--muted);
  margin-bottom: 14px;
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
  font-size: 13.5px;
  transition: border-color 0.2s, background 0.2s;
}

.inquiry-form input:focus,
.inquiry-form select:focus,
.inquiry-form textarea:focus {
  outline: 0;
  border-color: var(--ink-2);
  background: #fff;
}

.inquiry-form textarea {
  resize: vertical;
  min-height: 100px;
}

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

.form-note {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 10.5px;
  color: var(--muted-2);
  margin-top: 12px;
}

.form-note .icon {
  width: 13px;
  height: 13px;
}

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

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

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 4px;
  font-size: 15px;
  font-weight: 550;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-icon {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  transition: transform 0.2s;
  flex: none;
}

.faq-icon .icon {
  width: 13px;
  height: 13px;
}

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.faq-item p {
  padding: 0 40px 20px 4px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* --------------------------------- footer -------------------------------- */

.site-footer {
  background: var(--navy);
  color: #93a1b5;
  padding: 64px 0 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand p {
  font-size: 12.5px;
  line-height: 1.75;
  color: #8492a6;
  margin: 14px 0 18px;
  max-width: 320px;
}

.brand-mark--footer {
  font-size: 26px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 9px;
  font-size: 12.5px;
}

.footer-contact a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #c3cede;
}

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

.footer-contact .icon {
  width: 14px;
  height: 14px;
  color: #e7a6b7;
}

.footer-col h3 {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #63718a;
  margin-bottom: 14px;
  font-weight: 600;
}

.footer-col a {
  display: block;
  padding: 5px 0;
  font-size: 12.5px;
  color: #9aa8bb;
  transition: color 0.2s;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 11px;
  color: #63718a;
}

.footer-legal {
  text-align: right;
}

/* ---------------------------------- misc --------------------------------- */

.notfound {
  min-height: 60vh;
  padding-top: 96px;
}

.notfound h1 {
  font-size: clamp(34px, 5vw, 54px);
  margin: 14px 0;
}

.notfound .page-lead {
  max-width: 520px;
}

.notfound .hero-actions {
  margin-top: 26px;
}

.hero-actions--left {
  justify-content: flex-start;
}

.help-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.help-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #fff;
  transition: border-color 0.2s, transform 0.2s;
}

.help-card:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
}

.help-card > span {
  color: var(--brand);
  margin-bottom: 6px;
}

.help-card .icon {
  width: 20px;
  height: 20px;
}

.help-card b {
  font-size: 14.5px;
}

.help-card p {
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* reveal */
.js .reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

/* -------------------------------- responsive ------------------------------- */

@media (max-width: 1180px) {
  .wrap {
    padding: 0 22px;
  }

  .cat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .chain-track {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

  .chain-mini:nth-child(3)::after {
    display: none;
  }

  .route-grid,
  .pack-grid,
  .help-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .chain-stage {
    grid-template-columns: 220px 1fr;
  }

  .chain-products {
    grid-template-columns: repeat(4, 1fr);
    border-left: 0;
    border-top: 1px solid var(--line-2);
    padding-left: 0;
    padding-top: 14px;
  }

  .process-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
}

@media (max-width: 1024px) {
  .primary-nav {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .mobile-nav {
    display: block;
  }

  .header-bar {
    gap: 16px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 20px;
    padding-top: 64px;
    padding-bottom: 68px;
  }

  .hero-visual {
    min-height: 380px;
    margin-top: 10px;
  }

  .hero-float--a {
    left: 2%;
  }

  .hero-float--b {
    right: 2%;
  }

  .hero-float--c {
    left: 2%;
  }

  .element-card {
    width: 240px;
  }

  .element-symbol {
    font-size: 92px;
  }

  .hero-lead {
    font-size: 15.5px;
  }

  .split {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
  }

  .split--reverse {
    grid-template-columns: minmax(0, 1fr);
  }

  .product-hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .detail-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .detail-side {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .side-cat {
    grid-column: 1 / -1;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .contact-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .page-hero-grid {
    align-items: flex-start;
    flex-direction: column;
    gap: 28px;
  }

  .app-section {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .coverage-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 36px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-brand p {
    max-width: 520px;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 28px;
  }

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

@media (max-width: 860px) {
  .topbar {
    display: none;
  }

  .section {
    padding: 64px 0;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 28px;
  }

  .section-action {
    padding-bottom: 0;
  }

  .stat-row {
    grid-template-columns: 1fr 1fr;
  }

  .stat {
    padding: 20px 20px 18px;
  }

  .stat:nth-child(3) {
    border-left: 0;
    padding-left: 0;
  }

  .stat:nth-child(1),
  .stat:nth-child(2) {
    border-bottom: 1px solid var(--line-2);
  }

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

  .chain-band {
    padding: 64px 0;
  }

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

  .chain-mini:nth-child(2n)::after {
    display: none;
  }

  .chain-band-foot {
    flex-direction: column;
    align-items: flex-start;
  }

  .catalog-toolbar {
    position: static;
    grid-template-columns: 1fr;
  }

  .filter-selects {
    justify-content: flex-start;
  }

  .catalog-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .compare-bar-inner {
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 22px;
  }

  .compare-chips {
    order: 3;
    width: 100%;
  }

  .chain-stage {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 22px;
  }

  .chain-products {
    grid-template-columns: 1fr 1fr;
  }

  .qc-flow {
    grid-template-columns: 1fr 1fr;
  }

  .qc-step::after {
    display: none;
  }

  .quality-note {
    grid-template-columns: 1fr;
  }

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

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

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

  .contact-cards {
    grid-template-columns: 1fr;
  }

  .detail-side {
    grid-template-columns: 1fr;
  }

  .highlight-list {
    grid-template-columns: 1fr;
  }

  .product-headline {
    display: flex;
    flex-direction: column;
    gap: 3px;
  }

  .calc-form {
    flex-direction: column;
    align-items: stretch;
  }

  .calc-field input,
  .calc-field select {
    width: 100%;
  }

  .calc-results {
    grid-template-columns: 1fr 1fr;
  }

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

  .process-steps li {
    border-right: 0;
  }

  .route-detail-head {
    flex-direction: column;
    gap: 16px;
  }

  .route-metrics {
    gap: 18px;
  }

  .route-metrics span {
    text-align: left;
  }

  .app-nav {
    position: static;
  }

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

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .footer-legal {
    text-align: left;
  }

  .cat-strip {
    grid-template-columns: 1fr 1fr;
  }

  .page-hero {
    padding: 34px 0 42px;
  }

  .page-hero h1 {
    margin-top: 12px;
  }
}

@media (max-width: 640px) {
  .wrap {
    padding: 0 18px;
  }

  .spec-table {
    min-width: 0;
    font-size: 12px;
  }

  .spec-table thead th,
  .spec-table tbody th,
  .spec-table tbody td {
    padding: 8px 9px;
  }

  .spec-table tbody th {
    white-space: normal;
  }

  .header-bar {
    height: 64px;
  }

  .brand-mark {
    font-size: 21px;
  }

  .brand-sub {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .search-trigger {
    width: 38px;
    padding: 0;
    justify-content: center;
  }

  .search-trigger-text,
  .search-trigger kbd {
    display: none;
  }

  .hero-inner {
    padding-top: 48px;
    padding-bottom: 52px;
  }

  .hero-copy h1 {
    font-size: 36px;
    margin: 18px 0 18px;
  }

  .hero-lead {
    font-size: 14.5px;
  }

  .hero-actions .btn {
    flex: 1;
    min-width: 150px;
  }

  .hero-visual {
    min-height: 340px;
    transform: scale(0.92);
  }

  .hero-float--a {
    left: 3%;
    top: 6%;
  }

  .hero-float--b {
    right: 3%;
    top: 18%;
  }

  .hero-float--c {
    left: 3%;
    bottom: 2%;
  }

  .section {
    padding: 52px 0;
  }

  .section-head h2 {
    font-size: 27px;
  }

  .section-lead {
    font-size: 14.5px;
  }

  .cat-grid,
  .product-grid,
  .app-grid,
  .route-grid,
  .pack-grid,
  .help-grid,
  .glossary-grid,
  .coverage-grid,
  .quality-note {
    grid-template-columns: 1fr;
  }

  .chain-track {
    grid-template-columns: 1fr;
  }

  .chain-mini::after {
    display: none;
  }

  .stat-value {
    font-size: 26px;
  }

  .stat-value em {
    font-size: 11.5px;
  }

  .quick-table {
    min-width: 680px;
  }

  .page-hero h1 {
    font-size: 34px;
  }

  .page-hero-aside {
    width: 100%;
  }

  .hero-stat {
    flex: 1;
    padding: 13px 14px;
    min-width: 0;
  }

  .hero-stat b {
    font-size: 19px;
  }

  .product-hero h1 {
    font-size: 34px;
  }

  .product-headline b {
    font-size: 15px;
  }

  .detail-section {
    padding: 40px 0 64px;
  }

  .prose h2 {
    font-size: 22px;
  }

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

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

  .filter-selects {
    flex-wrap: wrap;
  }

  .filter-selects label {
    flex: 1;
  }

  .filter-selects select {
    width: 100%;
  }

  .product-card-link {
    padding: 20px 18px 18px;
  }

  .compare-bar-inner {
    padding: 10px 18px;
  }

  .compare-count {
    display: none;
  }

  .compare-actions {
    margin-left: auto;
  }

  .search-panel {
    margin-top: 8vh;
  }

  .compare-table-wrap {
    padding: 0 14px 14px;
  }

  .calc-card {
    padding: 24px 20px;
  }

  .calc-head h2 {
    font-size: 24px;
  }

  .calc-icon {
    display: none;
  }

  .calc-results {
    grid-template-columns: 1fr;
  }

  .process-steps {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .qc-flow {
    grid-template-columns: 1fr;
  }

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

  .inquiry-form {
    padding: 22px;
  }

  .contact-card b {
    font-size: 16px;
  }

  .cta-inner h2 {
    font-size: 27px;
  }

  .cta-actions {
    width: 100%;
  }

  .cta-actions .btn {
    flex: 1;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .app-nav .wrap {
    gap: 2px;
  }

  .app-section {
    padding: 38px 0;
  }

  .app-section h2 {
    font-size: 25px;
  }

  .route-detail {
    padding: 22px;
  }

  .route-detail-title h2 {
    font-size: 22px;
  }

  .chain-products {
    grid-template-columns: 1fr;
  }

  .conversion-inline {
    grid-template-columns: 1fr;
  }

  .element-card {
    width: 210px;
    padding: 18px 20px 16px;
  }

  .element-symbol {
    font-size: 76px;
  }

  .hero-float {
    padding: 8px 11px;
  }

  .hero-float b {
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ------------------------------ modal / toast ----------------------------- */
body.modal-open {
  overflow: hidden;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 96px;
  z-index: 120;
  transform: translate(-50%, 8px);
  padding: 10px 16px;
  border-radius: 8px;
  background: rgba(13, 22, 38, 0.96);
  color: #fff;
  font-size: 12.5px;
  box-shadow: 0 18px 40px -20px rgba(0, 0, 0, 0.6);
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
}

.toast.is-in {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ------------------------------ inquiry form ------------------------------ */
.hp-field {
  position: absolute !important;
  left: -10000px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

.form-status {
  margin: 0 0 14px;
  padding: 11px 14px;
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.6;
  border: 1px solid transparent;
}

.form-status a {
  color: inherit;
  text-decoration: underline;
  font-weight: 600;
}

.form-status.is-pending {
  background: #f2f5f9;
  border-color: var(--line);
  color: var(--muted);
}

.form-status.is-ok {
  background: #edf7f1;
  border-color: #c9e6d6;
  color: #1f6b45;
}

.form-status.is-error {
  background: #fdf1f3;
  border-color: #f0cdd5;
  color: #8d0c31;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 34px;
  padding: 0 9px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 7px;
  color: #aeb9c9;
  font-size: 12px;
  letter-spacing: 0.04em;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.lang-switch:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.06);
}

.primary-nav .nav-link {
  white-space: nowrap;
  flex: none;
}

@media (max-width: 1280px) {
  .lang-en .brand-sub {
    display: none;
  }

  .lang-en .header-bar {
    gap: 18px;
  }

  .lang-en .nav-link {
    padding-left: 9px;
    padding-right: 9px;
  }

  .lang-en .search-trigger kbd {
    display: none;
  }
}

@media (max-width: 1120px) {
  .lang-en .primary-nav {
    display: none;
  }

  .lang-en .nav-toggle {
    display: inline-flex;
  }

  .lang-en .mobile-nav {
    display: block;
  }
}

/* Home materials band (generated hero photograph) */
.materials-band {
  position: relative;
  overflow: hidden;
  background: #070d17;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.materials-photo {
  display: block;
  width: 100%;
  height: clamp(360px, 44vw, 560px);
  object-fit: cover;
  object-position: center 42%;
}
.materials-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 13, 23, 0.94) 0%, rgba(7, 13, 23, 0.78) 34%, rgba(7, 13, 23, 0.18) 62%, rgba(7, 13, 23, 0.1) 100%),
    linear-gradient(0deg, rgba(7, 13, 23, 0.55) 0%, rgba(7, 13, 23, 0) 45%);
  pointer-events: none;
}
.materials-copy {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(1200px, calc(100% - 48px));
  pointer-events: none;
}
.materials-copy > * {
  pointer-events: auto;
}
.materials-copy h2 {
  margin: 18px 0 16px;
  color: #f7f9fc;
  font-size: clamp(28px, 3.4vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.025em;
  font-weight: 650;
}
.materials-copy h2 span {
  color: #e7a6b7;
}
.materials-copy p {
  max-width: 500px;
  margin: 0 0 22px;
  color: #aab6c8;
  font-size: 15.5px;
  line-height: 1.75;
}
@media (max-width: 640px) {
  .materials-photo {
    height: 280px;
    object-position: center 72%;
  }
  .materials-scrim {
    display: none;
  }
  .materials-copy {
    position: relative;
    left: auto;
    top: auto;
    bottom: auto;
    transform: none;
    width: auto;
    padding: 24px 24px 34px;
    background: #070d17;
  }
  .materials-copy p {
    font-size: 14px;
    margin-bottom: 18px;
  }
}

/* Category cards and category hero: generated category photography */
.cat-media {
  display: block;
  margin: -24px -22px 18px;
  overflow: hidden;
  background: #070d17;
}
.cat-media picture,
.cat-media img {
  display: block;
  width: 100%;
}
.cat-media img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center 56%;
  transition: transform 0.5s ease;
}
.cat-card:hover .cat-media img {
  transform: scale(1.035);
}
.cat-hero-media {
  width: 150px;
  flex: none;
  overflow: hidden;
  background: #070d17;
}
.cat-hero-media picture,
.cat-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
}
.cat-hero-media img {
  object-fit: cover;
  object-position: center 58%;
}
@media (max-width: 860px) {
  .cat-hero-media {
    width: 100%;
    height: 132px;
  }
  .cat-hero-media img {
    object-position: center 58%;
  }
}

.cat-card--media .cat-count {
  position: static;
  align-self: flex-start;
  margin: 0 0 10px;
  color: var(--muted-2);
  background: none;
  border: 0;
  padding: 0;
  backdrop-filter: none;
}

/* Footer visitor counter */
.footer-left {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 18px;
}
.footer-visits {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  color: #7f8da2;
  font-variant-numeric: tabular-nums;
}
.footer-visits b {
  color: #c9d6e8;
  font-weight: 600;
  min-width: 5.2em;
}
@media (max-width: 640px) {
  .footer-bottom {
    align-items: flex-start;
  }
  .footer-left {
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
  }
  .footer-legal {
    text-align: left;
  }
}

/* Visitor IP beside the visit counter */
.footer-ip {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  color: #7f8da2;
  font-variant-numeric: tabular-nums;
}
.footer-ip b {
  color: #c9d6e8;
  font-weight: 500;
  font-family: var(--mono);
  font-size: 10.5px;
  min-width: 9em;
}

.footer-city {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  margin-left: 4px;
  color: #7f8da2;
}
.footer-city b {
  color: #c9d6e8;
  font-weight: 500;
}