@charset "UTF-8";
/* ------------------------------------------------------------------
   QINYU — main stylesheet
   Design tokens, layout primitives, components and page templates.
   No external fonts, icons or frameworks.
------------------------------------------------------------------ */

:root {
  /* colour */
  --navy-900: #08172b;
  --navy-800: #0b2039;
  --navy-700: #123152;
  --blue: #0b47e0;
  --blue-600: #0a3ec4;
  --blue-700: #0834a4;
  --blue-tint: #eef3ff;
  --ink: #0c1b2a;
  --gray-700: #44566a;
  --gray-600: #5b6e83;
  --gray-500: #7a8a9c;
  --gray-400: #9fadbc;
  --gray-300: #d5dee8;
  --gray-200: #e6ecf3;
  --gray-100: #f3f6fa;
  --white: #ffffff;
  --ok: #10704a;
  --warn: #a2371b;

  /* type */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --fs-xs: 0.75rem;
  --fs-sm: 0.8125rem;
  --fs-base: 1rem;
  --fs-md: 1.0625rem;
  --fs-lg: 1.1875rem;
  --fs-xl: 1.375rem;
  --fs-2xl: clamp(1.6rem, 2.4vw, 2.125rem);
  --fs-3xl: clamp(2rem, 3.4vw, 2.875rem);
  --fs-4xl: clamp(2.25rem, 4.6vw, 3.5rem);

  /* space */
  --container: 75rem;
  --gutter: 1.5rem;
  --section-y: clamp(3.5rem, 7vw, 6.5rem);
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(8, 23, 43, 0.06), 0 1px 3px rgba(8, 23, 43, 0.04);
  --shadow-md: 0 10px 30px rgba(8, 23, 43, 0.08);
  --shadow-lg: 0 24px 60px rgba(8, 23, 43, 0.12);
  --ring: 0 0 0 3px rgba(11, 71, 224, 0.28);
}

/* ---------------------------------------------------------------- reset */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
section[id], div[id] { scroll-margin-top: 5.5rem; }
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.6em;
  font-weight: 650;
  line-height: 1.18;
  letter-spacing: -0.018em;
  color: var(--navy-900);
  text-wrap: balance;
}
h1 { font-size: var(--fs-4xl); }
h2 { font-size: var(--fs-3xl); }
h3 { font-size: var(--fs-xl); line-height: 1.3; }
h4 { font-size: var(--fs-md); line-height: 1.4; }
p { margin: 0 0 1.1em; }
p:last-child, ul:last-child, ol:last-child { margin-bottom: 0; }
ul, ol { margin: 0 0 1.1em; padding-left: 1.15em; }
li { margin-bottom: 0.35em; }
a { color: var(--blue); text-decoration: none; transition: color 0.15s ease; }
a:hover { color: var(--blue-700); }
strong { font-weight: 650; }
hr { border: 0; border-top: 1px solid var(--gray-200); margin: 2.5rem 0; }
::selection { background: var(--blue); color: #fff; }

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
  border-radius: 2px;
}
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background: var(--navy-900);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; color: #fff; }

.screen-reader-text {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* ---------------------------------------------------------------- layout */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: 52rem; }
.section { padding-block: var(--section-y); }
.section--tight { padding-block: clamp(2.5rem, 4vw, 4rem); }
.section--gray { background: var(--gray-100); }
.section--navy { background: var(--navy-900); color: rgba(255, 255, 255, 0.78); }
.section--navy h2, .section--navy h3 { color: #fff; }
.section--line { border-top: 1px solid var(--gray-200); }

.grid { display: grid; gap: clamp(1.25rem, 2.2vw, 2rem); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.split { display: grid; gap: clamp(2rem, 4vw, 4.5rem); grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
.split--wide-right { grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); }
.stack > * + * { margin-top: 1.25rem; }

/* ---------------------------------------------------------------- typography helpers */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 1rem;
  font-size: var(--fs-sm);
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
}
.eyebrow::before {
  content: "";
  width: 1.75rem;
  height: 2px;
  background: currentColor;
}
.section--navy .eyebrow { color: #7fa6ff; }
.lead {
  font-size: var(--fs-lg);
  line-height: 1.65;
  color: var(--gray-700);
  max-width: 46rem;
}
.section--navy .lead { color: rgba(255, 255, 255, 0.72); }
.text-small { font-size: var(--fs-sm); color: var(--gray-600); }
.section-header { max-width: 52rem; margin-bottom: clamp(2rem, 3vw, 3rem); }
.section-header p:last-child { margin-bottom: 0; }
.section-header--center { margin-inline: auto; text-align: center; }
.section-header--center .eyebrow::before { display: none; }
.section-header--center .lead { margin-inline: auto; }

/* ---------------------------------------------------------------- buttons */
.btn {
  --btn-bg: var(--blue);
  --btn-fg: #fff;
  --btn-bd: var(--blue);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.875rem 1.5rem;
  border: 1px solid var(--btn-bd);
  border-radius: var(--radius-sm);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: var(--fs-sm);
  font-weight: 650;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  line-height: 1.2;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}
.btn:hover { background: var(--blue-700); border-color: var(--blue-700); color: #fff; transform: translateY(-1px); }
.btn svg { width: 1rem; height: 1rem; flex: none; }
.btn--ghost { --btn-bg: transparent; --btn-fg: var(--navy-900); --btn-bd: var(--gray-300); }
.btn--ghost:hover { background: var(--navy-900); border-color: var(--navy-900); color: #fff; }
.btn--light { --btn-bg: #fff; --btn-fg: var(--navy-900); --btn-bd: #fff; }
.btn--light:hover { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn--outline-light { --btn-bg: transparent; --btn-fg: #fff; --btn-bd: rgba(255, 255, 255, 0.45); }
.btn--outline-light:hover { background: #fff; border-color: #fff; color: var(--navy-900); }
.btn--sm { padding: 0.6rem 1rem; font-size: var(--fs-xs); }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: var(--fs-sm);
  font-weight: 650;
  letter-spacing: 0.02em;
  color: var(--blue);
}
.link-arrow svg { width: 0.95rem; height: 0.95rem; transition: transform 0.18s ease; }
.link-arrow:hover svg { transform: translateX(3px); }

/* ---------------------------------------------------------------- top bar + header */
.topbar {
  background: var(--navy-900);
  color: rgba(255, 255, 255, 0.72);
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
}
.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  min-height: 2.25rem;
  flex-wrap: wrap;
}
.topbar a { color: rgba(255, 255, 255, 0.86); }
.topbar a:hover { color: #fff; }
.topbar__meta { display: flex; align-items: center; gap: 1.5rem; min-width: 0; flex-wrap: wrap; }
.topbar__item { display: inline-flex; align-items: center; gap: 0.4rem; min-width: 0; overflow-wrap: anywhere; }
.topbar__item svg { width: 0.85rem; height: 0.85rem; opacity: 0.8; flex: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--gray-200);
  backdrop-filter: saturate(180%) blur(10px);
  transition: box-shadow 0.2s ease;
}
.site-header.is-stuck { box-shadow: var(--shadow-sm); }
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 4.75rem;
}
/* ---------------------------------------------------------------- brand */
.brand { display: inline-flex; align-items: center; gap: 0.7rem; color: var(--navy-900); }
.brand:hover { color: var(--navy-900); }
.brand__mark { width: 8.4rem; height: auto; flex: none; }
.brand__mark--stacked { width: 6rem; }
.brand__text { display: flex; flex-direction: column; line-height: 1.05; }
.brand__name { font-size: 1.3rem; font-weight: 700; letter-spacing: 0.16em; }
.brand__tag { font-size: 0.5625rem; font-weight: 600; letter-spacing: 0.11em; text-transform: uppercase; color: var(--gray-600); }

.nav { display: flex; align-items: center; gap: 0.25rem; }
.nav__list { display: flex; align-items: center; gap: 0.15rem; margin: 0; padding: 0; list-style: none; }
.nav__item { position: relative; margin: 0; }
.nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm);
  color: var(--gray-700);
  font-size: 0.9375rem;
  font-weight: 550;
  white-space: nowrap;
}
.nav__link:hover, .nav__link:focus-visible { color: var(--blue); background: var(--blue-tint); }
.nav__item.is-current > .nav__link { color: var(--blue); }
.nav__item.is-current > .nav__link::after {
  content: "";
  position: absolute;
  left: 0.7rem; right: 0.7rem; bottom: -0.1rem;
  height: 2px; background: var(--blue); border-radius: 2px;
}
.nav__link svg { width: 0.7rem; height: 0.7rem; opacity: 0.6; }
.nav__sub {
  position: absolute;
  top: calc(100% + 0.35rem);
  left: 0;
  min-width: 17rem;
  margin: 0;
  padding: 0.5rem;
  list-style: none;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity 0.16s ease, transform 0.16s ease, visibility 0.16s;
}
.nav__item:hover > .nav__sub, .nav__item:focus-within > .nav__sub {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav__sub a {
  display: block;
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius-sm);
  color: var(--gray-700);
  font-size: 0.9375rem;
}
.nav__sub a:hover { background: var(--blue-tint); color: var(--blue); }
.header__actions { display: flex; align-items: center; gap: 0.75rem; }

.nav-toggle {
  display: none;
  width: 2.75rem; height: 2.75rem;
  align-items: center; justify-content: center;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--navy-900);
  cursor: pointer;
}
.nav-toggle svg { width: 1.25rem; height: 1.25rem; }

/* mobile drawer */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: none;
  background: rgba(8, 23, 43, 0.5);
}
.drawer.is-open { display: block; }
.drawer__panel {
  position: absolute;
  inset: 0 0 0 auto;
  width: min(23rem, 88vw);
  height: 100%;
  overflow-y: auto;
  background: #fff;
  padding: 1.25rem 1.25rem 2rem;
  box-shadow: var(--shadow-lg);
  animation: drawer-in 0.22s ease;
}
@keyframes drawer-in { from { transform: translateX(16px); opacity: 0.6; } to { transform: none; opacity: 1; } }
.drawer__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.25rem; }
.drawer__close {
  width: 2.5rem; height: 2.5rem; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--gray-300); border-radius: var(--radius-sm); background: #fff; cursor: pointer;
}
.drawer__close svg { width: 1.1rem; height: 1.1rem; }
.drawer__list { list-style: none; margin: 0 0 1.5rem; padding: 0; }
.drawer__list li { margin: 0; border-bottom: 1px solid var(--gray-200); }
.drawer__list a { display: block; padding: 0.85rem 0.15rem; color: var(--navy-900); font-size: 1.0625rem; font-weight: 550; }
.drawer__list .sub a { padding-left: 1.1rem; font-size: 0.9375rem; color: var(--gray-700); font-weight: 450; }
.drawer .btn { width: 100%; justify-content: center; }

/* ---------------------------------------------------------------- hero */
.hero {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: flex-end;
  min-height: clamp(30rem, 74vh, 44rem);
  padding-block: clamp(3.5rem, 8vw, 6rem);
  background: var(--navy-900);
  color: #fff;
  overflow: hidden;
}
.hero__media { position: absolute; inset: 0; z-index: -2; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; }
.hero::after {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgba(8, 23, 43, 0.62) 0%, rgba(8, 23, 43, 0.42) 42%, rgba(8, 23, 43, 0.88) 100%),
    linear-gradient(92deg, rgba(8, 23, 43, 0.92) 0%, rgba(8, 23, 43, 0.55) 52%, rgba(8, 23, 43, 0.2) 100%);
}
.hero__inner { max-width: 46rem; }
.hero .eyebrow { color: #8fb0ff; }
.hero h1 { color: #fff; margin-bottom: 1.1rem; }
.hero__sub { font-size: var(--fs-lg); line-height: 1.65; color: rgba(255, 255, 255, 0.82); max-width: 42rem; margin-bottom: 2rem; }

.page-hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(3rem, 6vw, 5rem);
  background: var(--navy-900);
  color: #fff;
  overflow: hidden;
}
.page-hero__media { position: absolute; inset: 0; z-index: -2; }
.page-hero__media img { width: 100%; height: 100%; object-fit: cover; }
.page-hero::after {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, rgba(8, 23, 43, 0.94) 0%, rgba(8, 23, 43, 0.82) 55%, rgba(8, 23, 43, 0.55) 100%);
}
.page-hero h1 { color: #fff; }
.page-hero__lead { font-size: var(--fs-lg); color: rgba(255, 255, 255, 0.8); max-width: 44rem; margin-bottom: 0; }
.page-hero--plain { background: linear-gradient(180deg, var(--navy-900), var(--navy-800)); }
.page-hero--plain::after { display: none; }

/* stats strip */
.stats {
  position: relative;
  z-index: 5;
  margin-top: -3rem;
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.stats__item { padding: 1.6rem 1.5rem; border-right: 1px solid var(--gray-200); }
.stats__item:last-child { border-right: 0; }
.stats__label { display: block; font-size: var(--fs-xs); font-weight: 650; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gray-500); margin-bottom: 0.35rem; }
.stats__value { display: block; font-size: clamp(1.6rem, 2.4vw, 2.1rem); font-weight: 700; letter-spacing: -0.02em; color: var(--navy-900); line-height: 1.1; }
.stats__note { display: block; margin-top: 0.35rem; font-size: var(--fs-sm); color: var(--gray-600); }

/* ---------------------------------------------------------------- cards */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--gray-300); }
.card__media { position: relative; overflow: hidden; background: var(--gray-100); aspect-ratio: 4 / 3; }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.card:hover .card__media img { transform: scale(1.035); }
.card__body { padding: 1.35rem 1.4rem 1.5rem; display: flex; flex-direction: column; gap: 0.55rem; flex: 1; }
.card__title { margin: 0; font-size: var(--fs-md); font-weight: 650; line-height: 1.35; }
.card__title a { color: var(--navy-900); }
.card__title a:hover { color: var(--blue); }
.card__text { margin: 0; font-size: var(--fs-sm); color: var(--gray-600); line-height: 1.65; }
.card__foot { margin-top: auto; padding-top: 0.85rem; }
.card__meta { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  background: var(--gray-100);
  color: var(--gray-700);
  font-size: 0.6875rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.badge--blue { background: var(--blue-tint); color: var(--blue-700); }

.card--tile { position: relative; border: 0; border-radius: var(--radius); color: #fff; }
.card--tile .card__media { aspect-ratio: 4 / 3; }
.card--tile::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(8, 23, 43, 0) 35%, rgba(8, 23, 43, 0.92) 100%);
}
.card--tile .card__body {
  position: absolute; inset: auto 0 0 0; z-index: 2;
  gap: 0.3rem; padding: 1.35rem 1.4rem;
}
.card--tile .card__title, .card--tile .card__title a { color: #fff; }
.card--tile .card__text { color: rgba(255, 255, 255, 0.78); }
.card--tile:hover .card__title a { color: #fff; }

/* product card */
.product-card .card__media { aspect-ratio: 1 / 1; }
.product-card .card__body { gap: 0.45rem; }
.product-card__model { font-size: var(--fs-xs); font-weight: 650; letter-spacing: 0.08em; text-transform: uppercase; color: var(--blue); }

/* ---------------------------------------------------------------- feature / split blocks */
.feature-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.9rem; }
.feature-list li { position: relative; padding-left: 1.9rem; font-size: 0.9375rem; color: var(--gray-700); }
.feature-list li::before {
  content: "";
  position: absolute; left: 0; top: 0.42rem;
  width: 1.05rem; height: 1.05rem;
  border-radius: 50%;
  background: var(--blue-tint);
  box-shadow: inset 0 0 0 1px rgba(11, 71, 224, 0.25);
}
.feature-list li::after {
  content: "";
  position: absolute; left: 0.34rem; top: 0.66rem;
  width: 0.36rem; height: 0.2rem;
  border-left: 2px solid var(--blue); border-bottom: 2px solid var(--blue);
  transform: rotate(-45deg);
}

.media-frame { position: relative; border-radius: var(--radius); overflow: hidden; background: var(--gray-100); }
.media-frame img { width: 100%; height: 100%; object-fit: cover; }
.media-frame__caption { padding: 0.7rem 0.9rem; background: #fff; font-size: var(--fs-xs); color: var(--gray-500); }

.figure { margin: 0; }
.figure img { border-radius: var(--radius); width: 100%; }
.figure figcaption { margin-top: 0.6rem; font-size: var(--fs-xs); color: var(--gray-500); line-height: 1.5; }

.mosaic { display: grid; gap: 0.75rem; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.mosaic img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius-sm); }
.mosaic__wide { grid-column: span 2; }
.mosaic .media-frame { border-radius: var(--radius-sm); }

.process { list-style: none; margin: 2rem 0 0; padding: 0; display: grid; gap: 0; }
.process li {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr);
  gap: 0.9rem;
  padding: 1rem 0;
  border-top: 1px solid var(--gray-200);
}
.process li:first-child { border-top: 0; padding-top: 0; }
.process__num {
  width: 2.25rem; height: 2.25rem;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--blue-tint); color: var(--blue-700);
  font-size: var(--fs-xs); font-weight: 700; letter-spacing: 0.02em;
}
.process h4 { margin: 0.15rem 0 0.25rem; }
.process p { margin: 0; font-size: var(--fs-sm); color: var(--gray-600); }

/* ---------------------------------------------------------------- spec tables */
.table-wrap {
  position: relative;
  overflow-x: auto;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  background: #fff;
  -webkit-overflow-scrolling: touch;
}
.table-wrap::-webkit-scrollbar { height: 8px; }
.table-wrap::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 8px; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 0.9375rem; min-width: 30rem; }
.spec-table caption { caption-side: top; text-align: left; padding: 0.85rem 1rem; font-size: var(--fs-sm); color: var(--gray-600); }
.spec-table th, .spec-table td { padding: 0.7rem 1rem; text-align: left; border-bottom: 1px solid var(--gray-200); white-space: nowrap; }
.spec-table thead th {
  background: var(--gray-100);
  color: var(--navy-900);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  position: sticky; top: 0;
  border-bottom: 1px solid var(--gray-300);
}
.spec-table tbody tr:hover { background: var(--blue-tint); }
.spec-table tbody tr:last-child td { border-bottom: 0; }
.spec-table td:first-child { color: var(--gray-600); font-variant-numeric: tabular-nums; }
.spec-table--stacked { min-width: 0; }
.spec-table--stacked th { white-space: normal; width: 34%; }
.spec-table--stacked td { white-space: normal; }
.table-hint { display: flex; align-items: center; gap: 0.4rem; margin: 0.6rem 0 0; font-size: var(--fs-xs); color: var(--gray-500); }

.spec-list { display: grid; gap: 0; margin: 0; border-top: 1px solid var(--gray-200); }
.spec-list > div { display: grid; grid-template-columns: minmax(8rem, 32%) minmax(0, 1fr); gap: 1rem; padding: 0.75rem 0; border-bottom: 1px solid var(--gray-200); }
.spec-list dt { margin: 0; font-size: var(--fs-sm); font-weight: 650; color: var(--navy-900); }
.spec-list dd { margin: 0; font-size: var(--fs-sm); color: var(--gray-700); }

.note-box {
  display: flex;
  gap: 0.8rem;
  padding: 1rem 1.15rem;
  border-left: 3px solid var(--blue);
  background: var(--blue-tint);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: var(--fs-sm);
  color: var(--gray-700);
}
.note-box svg { width: 1.1rem; height: 1.1rem; flex: none; color: var(--blue); margin-top: 0.15rem; }

/* ---------------------------------------------------------------- breadcrumbs */
.breadcrumb { padding-block: 0.9rem; border-bottom: 1px solid var(--gray-200); font-size: var(--fs-xs); color: var(--gray-500); }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; margin: 0; padding: 0; list-style: none; }
.breadcrumb li { margin: 0; display: inline-flex; align-items: center; gap: 0.4rem; }
.breadcrumb li + li::before { content: "/"; color: var(--gray-400); }
.breadcrumb a { color: var(--gray-600); }
.breadcrumb a:hover { color: var(--blue); }

/* ---------------------------------------------------------------- product detail */
.product-top { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: clamp(1.75rem, 3.5vw, 3.5rem); align-items: start; }
.gallery { display: grid; gap: 0.6rem; }
.gallery__main { position: relative; border: 1px solid var(--gray-200); border-radius: var(--radius); overflow: hidden; background: var(--gray-100); aspect-ratio: 1 / 1; }
.gallery__main img { width: 100%; height: 100%; object-fit: cover; }
.gallery__thumbs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0.6rem; }
.gallery__thumb { border: 1px solid var(--gray-200); border-radius: var(--radius-sm); overflow: hidden; background: var(--gray-100); aspect-ratio: 1 / 1; cursor: pointer; padding: 0; }
.gallery__thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery__thumb.is-active { border-color: var(--blue); box-shadow: 0 0 0 2px rgba(11, 71, 224, 0.18); }
.product-summary h1 { margin-bottom: 0.5rem; }
.product-summary__model { display: inline-flex; align-items: center; gap: 0.4rem; margin-bottom: 1rem; padding: 0.3rem 0.6rem; border-radius: 3px; background: var(--blue-tint); color: var(--blue-700); font-size: var(--fs-xs); font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.product-summary__text { color: var(--gray-700); }
.product-summary .btn-row { margin-top: 1.5rem; }
.product-facts { margin: 1.5rem 0 0; padding: 1.1rem 1.2rem; background: var(--gray-100); border-radius: var(--radius); }
.product-facts dl { margin: 0; display: grid; gap: 0.45rem; }
.product-facts div { display: flex; justify-content: space-between; gap: 1rem; font-size: var(--fs-sm); }
.product-facts dt { color: var(--gray-600); }
.product-facts dd { margin: 0; font-weight: 600; color: var(--navy-900); text-align: right; max-width: 62%; overflow-wrap: anywhere; }

.prose { max-width: 46rem; color: var(--gray-700); }
.prose h2 { margin-top: 2.2rem; }
.prose h3 { margin-top: 1.8rem; }
.prose p { font-size: var(--fs-md); }
.prose ul { padding-left: 1.2rem; }
.prose table { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
.prose th, .prose td { border: 1px solid var(--gray-200); padding: 0.55rem 0.7rem; text-align: left; }

/* ---------------------------------------------------------------- gallery grid */
.gallery-grid { display: grid; gap: 0.9rem; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.gallery-grid .figure img { aspect-ratio: 3 / 2; object-fit: cover; }
.gallery-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

/* ---------------------------------------------------------------- CTA band */
.cta-band {
  position: relative;
  isolation: isolate;
  padding-block: clamp(3rem, 6vw, 5rem);
  background: var(--navy-900);
  color: #fff;
  overflow: hidden;
}
.cta-band__media { position: absolute; inset: 0; z-index: -2; }
.cta-band__media img { width: 100%; height: 100%; object-fit: cover; }
.cta-band::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(8, 23, 43, 0.95), rgba(8, 23, 43, 0.72)); }
.cta-band__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 2rem; }
.cta-band h2 { color: #fff; margin-bottom: 0.5rem; }
.cta-band p { color: rgba(255, 255, 255, 0.78); max-width: 38rem; margin: 0; }
.cta-band .btn-row { flex: none; }

/* ---------------------------------------------------------------- forms */
.form-card {
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.form-grid { display: grid; gap: 1.1rem; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: var(--fs-sm); font-weight: 600; color: var(--navy-900); }
.field .req { color: var(--blue); }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 0.9375rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field textarea { min-height: 9rem; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--blue); box-shadow: var(--ring);
}
.field__hint { font-size: var(--fs-xs); color: var(--gray-500); }
.field__error { font-size: var(--fs-xs); color: var(--warn); font-weight: 600; }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--warn); }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin-top: 0.5rem; }
.form-actions .text-small { margin: 0; }
.hp-field { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }

.notice {
  display: flex; gap: 0.7rem; align-items: flex-start;
  padding: 0.95rem 1.1rem; border-radius: var(--radius-sm);
  font-size: var(--fs-sm); margin-bottom: 1.25rem;
}
.notice svg { width: 1.1rem; height: 1.1rem; flex: none; margin-top: 0.15rem; }
.notice--ok { background: #eaf6f0; color: var(--ok); border: 1px solid #bfe3d1; }
.notice--error { background: #fdefe9; color: var(--warn); border: 1px solid #f3cdbd; }

.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.15rem; }
.contact-list li { display: grid; grid-template-columns: 2rem minmax(0, 1fr); gap: 0.85rem; align-items: start; margin: 0; }
.contact-list__icon {
  width: 2rem; height: 2rem; display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%; background: var(--blue-tint); color: var(--blue);
}
.contact-list__icon svg { width: 1rem; height: 1rem; }
.contact-list dt, .contact-list__label { font-size: var(--fs-xs); font-weight: 650; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gray-500); }
.contact-list__value { font-size: var(--fs-md); color: var(--navy-900); font-weight: 550; }
.contact-list__value a { color: var(--navy-900); }
.contact-list__value a:hover { color: var(--blue); }

/* ---------------------------------------------------------------- pagination / misc */
.pagination { display: flex; justify-content: center; margin-top: 2.5rem; }
.pagination .page-numbers {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 2.5rem; height: 2.5rem; padding: 0 0.6rem; margin: 0 0.15rem;
  border: 1px solid var(--gray-200); border-radius: var(--radius-sm);
  color: var(--gray-700); font-size: var(--fs-sm);
}
.pagination .page-numbers.current, .pagination .page-numbers:hover { background: var(--blue); border-color: var(--blue); color: #fff; }

.empty-state { padding: clamp(2.5rem, 5vw, 4rem); text-align: center; border: 1px dashed var(--gray-300); border-radius: var(--radius); color: var(--gray-600); }

.filter-bar { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 2rem; }
.filter-bar a {
  display: inline-flex; align-items: center;
  padding: 0.45rem 0.9rem; border: 1px solid var(--gray-300); border-radius: 999px;
  color: var(--gray-700); font-size: var(--fs-sm); font-weight: 550; background: #fff;
}
.filter-bar a:hover { border-color: var(--blue); color: var(--blue); }
.filter-bar a.is-active { background: var(--navy-900); border-color: var(--navy-900); color: #fff; }

.search-form { display: flex; gap: 0.5rem; }
.search-form input[type="search"] {
  flex: 1; padding: 0.6rem 0.8rem; border: 1px solid var(--gray-300); border-radius: var(--radius-sm); font: inherit; font-size: 0.9375rem;
}

/* ---------------------------------------------------------------- footer */
.site-footer { background: var(--navy-900); color: rgba(255, 255, 255, 0.66); font-size: var(--fs-sm); }
.site-footer a { color: rgba(255, 255, 255, 0.8); }
.site-footer a:hover { color: #fff; }
.footer__top { padding-block: clamp(2.5rem, 5vw, 4rem); display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem; }
.footer__brand .brand { color: #fff; }
.footer__brand .brand__mark { filter: brightness(0) invert(1); }
.footer__brand .brand__name { color: #fff; }
.footer__brand .brand__tag { color: rgba(255, 255, 255, 0.5); }
.footer__brand p { margin: 1.1rem 0 0; max-width: 22rem; line-height: 1.7; }
.footer h3 { color: #fff; font-size: var(--fs-xs); font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 1rem; }
.footer__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.55rem; }
.footer__list li { margin: 0; }
.footer__list a { display: inline-block; }
.footer__contact { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.7rem; }
.footer__contact li { margin: 0; display: grid; grid-template-columns: 1rem minmax(0, 1fr); gap: 0.6rem; align-items: start; }
.footer__contact svg { width: 0.95rem; height: 0.95rem; margin-top: 0.25rem; opacity: 0.6; }
.footer__bottom {
  padding-block: 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.75rem;
  font-size: var(--fs-xs); color: rgba(255, 255, 255, 0.5);
}
.footer__bottom a { color: rgba(255, 255, 255, 0.6); }

/* ---------------------------------------------------------------- reveal animation */
.js .reveal { opacity: 0; transform: translateY(14px); }
.js .reveal.is-visible { opacity: 1; transform: none; transition: opacity 0.6s ease, transform 0.6s ease; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal, .js .reveal.is-visible { opacity: 1 !important; transform: none !important; transition: none !important; }
  .card:hover, .btn:hover { transform: none; }
  .card:hover .card__media img { transform: none; }
  .drawer__panel { animation: none; }
}

/* ---------------------------------------------------------------- responsive */
@media (max-width: 1080px) {
  .footer__top { grid-template-columns: 1fr 1fr; }
  .nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .header__actions .btn { display: none; }
  .product-top { grid-template-columns: 1fr; }
  .gallery { max-width: 40rem; }
}
@media (max-width: 900px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split, .split--wide-right { grid-template-columns: 1fr; }
  .stats__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats__item:nth-child(2) { border-right: 0; }
  .stats__item:nth-child(-n+2) { border-bottom: 1px solid var(--gray-200); }
  .gallery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-band__inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 640px) {
  :root { --gutter: 1.15rem; }
  .topbar .topbar__meta:first-child { display: none; }
  .topbar .container { justify-content: flex-start; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .gallery-grid, .gallery-grid--2 { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; gap: 2rem; }
  .stats { margin-top: -2rem; }
  .stats__item { padding: 1.2rem 1.1rem; }
  .stats__grid { grid-template-columns: 1fr; }
  .stats__item { border-right: 0; border-bottom: 1px solid var(--gray-200); }
  .stats__item:last-child { border-bottom: 0; }
  .mosaic { grid-template-columns: 1fr; }
  .mosaic__wide { grid-column: auto; }
  .spec-table { font-size: 0.875rem; }
  .spec-table th, .spec-table td { padding: 0.6rem 0.75rem; }
  .btn { width: 100%; justify-content: center; }
  .hero { min-height: 0; padding-block: 3rem 5rem; }
  .hero__sub { font-size: 1rem; }
  .product-facts div { flex-direction: column; gap: 0.15rem; }
  .product-facts dd { text-align: left; max-width: none; }
}

/* ---------------------------------------------------------------- print */
@media print {
  .site-header, .topbar, .drawer, .cta-band, .site-footer, .nav-toggle { display: none !important; }
  body { color: #000; }
  a { color: #000; text-decoration: underline; }
  .hero, .page-hero { color: #000; background: none; }
  .hero::after, .page-hero::after { display: none; }
}