/* ==========================================================================
   ARMYARMOR · junzhijia.com
   Design system: precision industrial / warm-neutral / signal orange
   ========================================================================== */

:root {
  --ink: #0b0b0c;
  --ink-2: #16171a;
  --ink-3: #2a2b30;
  --paper: #ffffff;
  --sand: #f6f4f0;
  --sand-2: #efebe4;
  --line: #e5e1d9;
  --line-dark: rgba(255, 255, 255, .14);
  --muted: #6f6c66;
  --muted-2: #97938b;
  --orange: #e8561a;
  --orange-2: #f4682c;
  --orange-soft: rgba(232, 86, 26, .08);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --wrap: 1280px;
  --gap: clamp(16px, 2.2vw, 28px);
  --radius: 2px;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --header-h: 76px;
}

* { box-sizing: border-box; }

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

html { overflow-x: hidden; }

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

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -.02em;
}

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

::selection { background: var(--orange); color: #fff; }

/* ---------------- layout ---------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 clamp(18px, 4vw, 48px);
}

.section { padding: clamp(64px, 9vw, 128px) 0; }
.section--tight { padding: clamp(48px, 6vw, 84px) 0; }
.section--sand { background: var(--sand); }
.section--ink { background: var(--ink); color: #fff; }

.rule-top { border-top: 1px solid var(--line); }
.section--ink .rule-top { border-color: var(--line-dark); }

/* ---------------- typography helpers ---------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--orange);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--orange);
}

.h-xl { font-size: clamp(2.4rem, 6vw, 4.6rem); text-wrap: balance; }
.h-lg { font-size: clamp(1.9rem, 3.4vw, 3rem); text-wrap: balance; }
.h-md { font-size: clamp(1.4rem, 2.1vw, 1.9rem); }
.h-sm { font-size: 1.075rem; }

.lead {
  font-size: clamp(1rem, 1.15vw, 1.125rem);
  color: var(--muted);
  max-width: 62ch;
}
.section--ink .lead { color: rgba(255, 255, 255, .7); }

.sec-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, .8fr);
  gap: clamp(20px, 5vw, 80px);
  align-items: end;
  margin-bottom: clamp(32px, 4vw, 56px);
}
.sec-head .eyebrow { margin-bottom: 18px; }
.sec-head__aside { justify-self: end; text-align: right; }
@media (max-width: 860px) {
  .sec-head { grid-template-columns: 1fr; }
  .sec-head__aside { text-align: left; justify-self: start; }
}

.muted { color: var(--muted); }
.mono { font-family: var(--mono); letter-spacing: .04em; }

/* ---------------- buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .02em;
  transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
}
.btn:hover { background: var(--orange); border-color: var(--orange); transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn--light { background: #fff; color: var(--ink); border-color: #fff; }
.btn--light:hover { background: var(--orange); border-color: var(--orange); color: #fff; }
.btn--outline-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .4); }
.btn--outline-light:hover { background: #fff; color: var(--ink); border-color: #fff; }
.btn .arw { transition: transform .3s var(--ease); }
.btn:hover .arw { transform: translateX(4px); }

.link-arw {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  padding-bottom: 3px;
  border-bottom: 1px solid currentColor;
  transition: color .3s var(--ease), gap .3s var(--ease);
}
.link-arw:hover { color: var(--orange); gap: 14px; }

/* ---------------- header ---------------- */
.topbar {
  background: var(--ink);
  color: rgba(255, 255, 255, .72);
  font-size: 12.5px;
  letter-spacing: .02em;
}
.topbar__in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 40px;
}
.topbar a:hover { color: #fff; }
.topbar__left { display: flex; gap: 22px; align-items: center; }
.topbar__left span { display: inline-flex; align-items: center; gap: 7px; }
.topbar__dot { width: 5px; height: 5px; background: var(--orange); border-radius: 50%; }
.lang { display: flex; align-items: center; gap: 8px; }
.lang a { opacity: .55; transition: opacity .2s; }
.lang a.is-active, .lang a:hover { opacity: 1; color: #fff; }

.header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s var(--ease), background .3s var(--ease);
}
.header.is-stuck { box-shadow: 0 1px 24px rgba(0, 0, 0, .07); }
.header__in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  height: var(--header-h);
}
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand img { height: 36px; width: auto; }
.brand__txt { display: flex; flex-direction: column; line-height: 1.05; }
.brand__en {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .22em;
  white-space: nowrap;
}
.brand__zh {
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--muted);
  margin-top: 3px;
  white-space: nowrap;
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav__item { position: relative; }
.nav__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  white-space: nowrap;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink-3);
  transition: color .2s var(--ease);
}
.nav__link:hover, .nav__item.is-active > .nav__link { color: var(--orange); }
.nav__link .chev { transition: transform .25s var(--ease); }
.nav__item:hover .chev { transform: rotate(180deg); }

.dropdown {
  position: absolute;
  top: calc(100% + 1px);
  left: 50%;
  transform: translate(-50%, 8px);
  min-width: 300px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 24px 48px rgba(0, 0, 0, .1);
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s;
}
.nav__item:hover .dropdown,
.nav__item:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}
.dropdown a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 14px;
  font-size: 14px;
  border-bottom: 1px solid #f2efe9;
  transition: background .2s, color .2s;
}
.dropdown a:last-child { border-bottom: 0; }
.dropdown a:hover { background: var(--sand); color: var(--orange); }
.dropdown a small { color: var(--muted-2); font-size: 11px; letter-spacing: .08em; }

.header__cta { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.header__phone {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  text-align: right;
  margin-right: 6px;
}
.header__phone small { font-size: 10px; letter-spacing: .14em; color: var(--muted-2); text-transform: uppercase; }
.header__phone strong { font-size: 15px; letter-spacing: .01em; }

.burger {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  background: transparent;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.burger span { width: 18px; height: 1.5px; background: var(--ink); transition: transform .3s, opacity .3s; }

/* mobile drawer */
.mdrawer {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(88vw, 400px);
  background: #fff;
  z-index: 120;
  transform: translateX(100%);
  transition: transform .38s var(--ease);
  overflow-y: auto;
  padding: 24px clamp(20px, 5vw, 32px) 40px;
  box-shadow: -20px 0 60px rgba(0, 0, 0, .16);
}
.mdrawer.is-open { transform: translateX(0); }
.mdrawer__top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; }
.mdrawer__close { background: none; border: 0; font-size: 26px; line-height: 1; padding: 4px 8px; }
.mdrawer nav a {
  display: block;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  font-size: 17px;
  font-weight: 500;
}
.mdrawer nav a.sub { padding-left: 16px; font-size: 15px; color: var(--muted); }
.mdrawer__foot { margin-top: 28px; display: grid; gap: 10px; }
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 8, 9, .5);
  z-index: 110;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s, visibility .3s;
}
.overlay.is-open { opacity: 1; visibility: visible; }

@media (max-width: 1240px) {
  .nav__link { padding: 10px 10px; font-size: 13.5px; }
  .header__phone strong { font-size: 13.5px; }
}
@media (max-width: 1080px) {
  .nav { display: none; }
  .header__phone { display: none; }
  .burger { display: flex; }
}
@media (max-width: 560px) {
  .header__cta .btn { display: none; }
  .brand img { height: 30px; }
  .brand__en { font-size: 13px; letter-spacing: .18em; }
}

/* ---------------- hero ---------------- */
.hero {
  position: relative;
  min-height: min(88vh, 860px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: #141416;
  color: #fff;
  padding-top: calc(var(--header-h) + 10px);
}
.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url("/assets/img/hero-wall.webp");
  background-size: cover;
  background-position: 62% 45%;
  transform: scale(1.03);
  animation: heroZoom 22s var(--ease) forwards;
}
@keyframes heroZoom { to { transform: scale(1); } }
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(96deg, rgba(6, 6, 7, .96) 0%, rgba(6, 6, 7, .92) 28%, rgba(6, 6, 7, .62) 50%, rgba(6, 6, 7, .24) 70%, rgba(6, 6, 7, .4) 100%),
    linear-gradient(0deg, rgba(6, 6, 7, .7) 0%, rgba(6, 6, 7, 0) 38%);
}
.hero__in {
  position: relative;
  z-index: 2;
  width: 100%;
  min-width: 0;
  padding-top: clamp(60px, 10vw, 120px);
  padding-bottom: clamp(36px, 5vw, 64px);
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .72);
  border: 1px solid rgba(255, 255, 255, .22);
  padding: 7px 14px;
  margin-bottom: 26px;
}
.hero__badge i { width: 6px; height: 6px; background: var(--orange); border-radius: 50%; }
.hero h1 {
  font-size: clamp(2.15rem, 4.6vw, 3.85rem);
  font-weight: 600;
  letter-spacing: -.03em;
  max-width: 19ch;
  text-wrap: balance;
  text-shadow: 0 2px 24px rgba(0, 0, 0, .45);
}
.hero h1 em {
  font-style: normal;
  color: var(--orange-2);
}
.hero__sub {
  margin-top: 22px;
  overflow-wrap: anywhere;
  font-size: clamp(.98rem, 1.3vw, 1.15rem);
  color: rgba(255, 255, 255, .82);
  max-width: 52ch;
  text-shadow: 0 1px 16px rgba(0, 0, 0, .5);
}
.hero__en {
  margin-top: 14px;
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .42);
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.hero__stats {
  margin-top: clamp(48px, 7vw, 88px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, .16);
  border-top: 1px solid rgba(255, 255, 255, .16);
}
.hero__stat {
  background: rgba(10, 10, 11, .34);
  backdrop-filter: blur(6px);
  padding: 20px 22px 22px;
}
.hero__stat b {
  display: block;
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
  font-weight: 600;
  letter-spacing: -.02em;
}
.hero__stat b span { font-size: .55em; color: var(--orange-2); margin-left: 2px; }
.hero__stat small {
  display: block;
  margin-top: 4px;
  font-size: 11.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .5);
}
@media (max-width: 760px) {
  .hero { min-height: 82vh; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .hero__stat { padding: 16px 14px 18px; }
  .hero__stat b { font-size: 1.4rem; }
  .topbar__in { height: auto; padding: 7px 0; font-size: 11.5px; }
  .topbar__left { gap: 14px; }
  .topbar__left span:nth-child(2) { display: none; }
}

@media (max-width: 460px) {
  .hero__stat b { font-size: 1.22rem; }
  .hero h1 { font-size: 2.05rem; }
}

/* ---------------- page hero (inner) ---------------- */
.phero {
  position: relative;
  background: var(--ink);
  color: #fff;
  overflow: hidden;
}
.phero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: .34;
  filter: grayscale(.15);
}
.phero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 8, 9, .94) 0%, rgba(8, 8, 9, .6) 55%, rgba(8, 8, 9, .35) 100%);
}
.phero__in {
  position: relative;
  z-index: 2;
  padding: clamp(56px, 7vw, 96px) 0 clamp(44px, 5vw, 64px);
}
.phero h1 { font-size: clamp(1.9rem, 4vw, 3.2rem); max-width: 20ch; }
.phero p { margin-top: 16px; color: rgba(255, 255, 255, .68); max-width: 60ch; }
.phero .eyebrow { margin-bottom: 16px; }

.crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: rgba(255, 255, 255, .5);
  margin-bottom: 20px;
}
.crumb a:hover { color: #fff; }
.crumb span { color: rgba(255, 255, 255, .28); }

/* ---------------- series grid ---------------- */
.series-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
@media (max-width: 1000px) { .series-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .series-grid { grid-template-columns: 1fr; } }

.scard {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--sand);
  overflow: hidden;
  border: 1px solid transparent;
  transition: border-color .35s var(--ease), background .35s var(--ease);
}
.scard:hover { border-color: var(--ink); background: #fff; }
.scard__img {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #fff;
}
.scard__img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 10%;
  transition: transform .7s var(--ease);
}
.scard:hover .scard__img img { transform: scale(1.05); }
.scard__code {
  position: absolute;
  top: 14px;
  left: 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  background: var(--ink);
  color: #fff;
  padding: 4px 9px;
}
.scard__body {
  padding: 22px 24px 26px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.scard__body h3 { font-size: 1.12rem; }
.scard__body .en {
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted-2);
}
.scard__body p { font-size: 13.5px; color: var(--muted); line-height: 1.68; }
.scard__foot {
  margin-top: auto;
  padding-top: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--muted);
}
.scard__foot .n { font-family: var(--mono); font-size: 11px; letter-spacing: .08em; }
.scard:hover .scard__foot { color: var(--orange); }

/* ---------------- feature grid ---------------- */
.fgrid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.fgrid > div {
  background: #fff;
  padding: clamp(24px, 3vw, 38px) clamp(20px, 2.4vw, 30px);
}
.fgrid .idx {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--orange);
}
.fgrid h3 { margin: 18px 0 10px; font-size: 1.05rem; }
.fgrid p { font-size: 13.5px; color: var(--muted); line-height: 1.7; }
@media (max-width: 900px) { .fgrid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .fgrid { grid-template-columns: 1fr; } }

.section--ink .fgrid { background: var(--line-dark); border-color: var(--line-dark); }
.section--ink .fgrid > div { background: var(--ink); }
.section--ink .fgrid p { color: rgba(255, 255, 255, .58); }

/* ---------------- stats ---------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.stats > div {
  padding: clamp(22px, 3vw, 34px) clamp(16px, 2vw, 28px);
  border-left: 1px solid var(--line-dark);
}
.stats > div:first-child { border-left: 0; padding-left: 0; }
.stats b {
  display: block;
  font-size: clamp(2rem, 3.4vw, 3rem);
  font-weight: 600;
  letter-spacing: -.03em;
  line-height: 1;
}
.stats b span { font-size: .45em; color: var(--orange-2); margin-left: 3px; letter-spacing: 0; }
.stats small {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .45);
}
@media (max-width: 760px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stats > div { border-left: 0; padding-left: 0; }
}

/* ---------------- applications ---------------- */
.apps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
}
@media (max-width: 980px) { .apps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .apps { grid-template-columns: 1fr; } }
.acard {
  position: relative;
  display: block;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--ink-2);
  color: #fff;
}
.acard img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .8s var(--ease);
  filter: saturate(.95);
}
.acard:hover img { transform: scale(1.06); }
.acard::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(6, 6, 7, .88) 0%, rgba(6, 6, 7, .22) 48%, rgba(6, 6, 7, .06) 100%);
}
.acard__body {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 20px 20px 22px;
  z-index: 2;
}
.acard__body .n {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--orange-2);
}
.acard__body h3 { margin-top: 8px; font-size: 1.02rem; }
.acard__body .en {
  display: block;
  margin-top: 4px;
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .5);
}

/* ---------------- split / media ---------------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
.media-frame { position: relative; overflow: hidden; background: var(--sand-2); }
.media-frame img { width: 100%; height: 100%; object-fit: cover; }
.media-frame--43 { aspect-ratio: 4 / 3; }
.media-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.media-grid .tall { grid-row: span 2; aspect-ratio: 3 / 4; }
.media-grid .wide { aspect-ratio: 3 / 2; }

.klist { display: grid; gap: 0; margin-top: 28px; border-top: 1px solid var(--line); }
.klist li {
  display: grid;
  grid-template-columns: 132px 1fr;
  gap: 20px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.klist li b { font-weight: 600; }
.klist li span { color: var(--muted); }
.section--ink .klist, .section--ink .klist li { border-color: var(--line-dark); }
.section--ink .klist li span { color: rgba(255, 255, 255, .58); }

/* ---------------- product grid ---------------- */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(24px, 3vw, 36px);
}
.toolbar__count { font-size: 13px; color: var(--muted); }
.toolbar__count b { color: var(--ink); font-weight: 600; }
.toolbar__hint { font-size: 12.5px; color: var(--muted-2); }

.pgrid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
}
@media (max-width: 1180px) { .pgrid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 840px) { .pgrid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 460px) { .pgrid { grid-template-columns: 1fr 1fr; gap: 12px; } }

.pcard {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.pcard:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, .06);
}
.pcard__img {
  aspect-ratio: 1 / 1;
  background: #fff;
  overflow: hidden;
  padding: 8%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pcard__img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform .5s var(--ease);
  mix-blend-mode: multiply;
}
.pcard:hover .pcard__img img { transform: scale(1.05); }
.pcard__body {
  border-top: 1px solid var(--line);
  padding: 14px 16px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.pcard__model { font-family: var(--mono); font-size: 13px; font-weight: 600; letter-spacing: .04em; }
.pcard__meta { font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-2); }
.pcard__arw { color: var(--muted-2); transition: transform .3s, color .3s; }
.pcard:hover .pcard__arw { color: var(--orange); transform: translateX(3px); }

/* ---------------- product detail ---------------- */
.pdp {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: start;
}
@media (max-width: 900px) { .pdp { grid-template-columns: 1fr; } }

.gallery__main {
  aspect-ratio: 4 / 3;
  background: #fff;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6%;
  overflow: hidden;
}
.gallery__main img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.gallery__thumbs { display: flex; gap: 10px; margin-top: 10px; }
.gallery__thumbs button {
  width: 84px;
  height: 84px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 6px;
  transition: border-color .2s;
}
.gallery__thumbs button.is-active { border-color: var(--orange); }
.gallery__thumbs img { width: 100%; height: 100%; object-fit: contain; }

.pdp__model {
  font-family: var(--mono);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: .01em;
  line-height: 1.1;
}
.pdp__series { margin-top: 10px; font-size: 14px; color: var(--muted); }
.pdp__series a { color: var(--orange); }
.pdp__desc { margin-top: 20px; color: var(--muted); font-size: 14.5px; }

.spectable { width: 100%; border-collapse: collapse; margin-top: 26px; font-size: 13.5px; }
.spectable th, .spectable td {
  text-align: left;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.spectable th {
  width: 132px;
  font-weight: 500;
  color: var(--muted-2);
  font-size: 12px;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding-right: 16px;
}
.spectable td { color: var(--ink); }
.pdp__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.pdp__note {
  margin-top: 18px;
  font-size: 12px;
  color: var(--muted-2);
  border-left: 2px solid var(--orange);
  padding-left: 12px;
  line-height: 1.65;
}

.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.badge {
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  padding: 5px 10px;
  color: var(--muted);
  background: var(--sand);
}

/* ---------------- CTA band ---------------- */
.ctaband {
  position: relative;
  background: var(--ink);
  color: #fff;
  overflow: hidden;
}
.ctaband__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: .22;
}
.ctaband__in {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
  padding: clamp(52px, 7vw, 96px) 0;
}
.ctaband h2 { font-size: clamp(1.6rem, 3.2vw, 2.6rem); max-width: 22ch; }
.ctaband p { margin-top: 14px; color: rgba(255, 255, 255, .6); max-width: 52ch; }
.ctaband__actions { display: flex; flex-wrap: wrap; gap: 12px; }
@media (max-width: 820px) {
  .ctaband__in { grid-template-columns: 1fr; }
}

/* ---------------- footer ---------------- */
.footer { background: #08080a; color: rgba(255, 255, 255, .58); font-size: 13.5px; }
.footer__top {
  display: grid;
  grid-template-columns: 1.4fr .8fr .8fr 1fr;
  gap: clamp(24px, 4vw, 56px);
  padding: clamp(48px, 6vw, 76px) 0 clamp(36px, 4vw, 52px);
}
@media (max-width: 900px) { .footer__top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer__top { grid-template-columns: 1fr; } }
.footer__brand img { height: 40px; margin-bottom: 18px; }
.footer__brand p { max-width: 34ch; line-height: 1.8; }
.footer h4 {
  color: #fff;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-bottom: 18px;
  font-weight: 600;
}
.footer ul { display: grid; gap: 11px; }
.footer a:hover { color: var(--orange-2); }
.footer__contact li { display: grid; gap: 2px; }
.footer__contact small { font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: rgba(255, 255, 255, .32); }
.footer__contact strong { color: #fff; font-weight: 500; font-size: 14px; }
.footer__bar {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 20px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(255, 255, 255, .38);
}
.footer__bar a:hover { color: #fff; }

/* ---------------- misc ---------------- */
.quote {
  border-left: 2px solid var(--orange);
  padding-left: clamp(20px, 3vw, 36px);
  font-size: clamp(1.15rem, 1.9vw, 1.55rem);
  line-height: 1.55;
  font-weight: 500;
  letter-spacing: -.01em;
  max-width: 40ch;
}
.section--ink .quote { color: #fff; }

/* 默认可见；由 JS 加上 .pre 后才进入淡入状态，避免脚本失效时内容不可见 */
.reveal { opacity: 1; transform: none; }
.reveal.pre {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.pre.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal.pre { opacity: 1; transform: none; transition: none; }
  .hero__bg { animation: none; }
  html { scroll-behavior: auto; }
}

.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
@media (max-width: 860px) { .tiles { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .tiles { grid-template-columns: 1fr; } }
.tile { display: block; }
.tile img { aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.tile h3 { margin-top: 14px; font-size: 1rem; }
.tile p { margin-top: 6px; font-size: 13px; color: var(--muted); }

.form { display: grid; gap: 16px; }
.form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) { .form .row2 { grid-template-columns: 1fr; } }
.form label { display: grid; gap: 7px; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.form input, .form textarea, .form select {
  font: inherit;
  font-size: 15px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  width: 100%;
  transition: border-color .2s;
}
.form input:focus, .form textarea:focus, .form select:focus { outline: none; border-color: var(--ink); }
.form textarea { min-height: 130px; resize: vertical; }

.note-box {
  background: var(--sand);
  border: 1px solid var(--line);
  padding: 22px 24px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
}
.note-box b { color: var(--ink); }

.kpi-inline { display: flex; flex-wrap: wrap; gap: clamp(20px, 4vw, 48px); margin-top: 30px; }
.kpi-inline div { min-width: 90px; }
.kpi-inline b { display: block; font-size: 1.6rem; font-weight: 600; letter-spacing: -.02em; }
.kpi-inline small { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-2); }

.gallery-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
@media (max-width: 640px) { .gallery-strip { grid-template-columns: 1fr 1fr; } }
.gallery-strip img { aspect-ratio: 1/1; object-fit: cover; width: 100%; }