:root {
  --bg: #061018;
  --bg-2: #0b1a26;
  --bg-3: #102433;
  --panel: rgba(14, 32, 48, 0.72);
  --line: rgba(120, 200, 230, 0.16);
  --text: #e8f4f8;
  --muted: #8aa4b5;
  --accent: #2ad4c4;
  --accent-2: #4ea8ff;
  --warn: #ffb35c;
  --danger: #ff6b6b;
  --success: #2ad4c4;
  --font-cn: "Noto Sans SC", sans-serif;
  --font-display: "Orbitron", "Noto Sans SC", sans-serif;
  --font-num: "Rajdhani", "Orbitron", sans-serif;
  --radius: 4px;
  --max: 1180px;
  --header-h: 72px;
}

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

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

body {
  margin: 0;
  font-family: var(--font-cn);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 0.6em; font-weight: 700; }
p { margin: 0 0 1em; color: var(--muted); }
ul { margin: 0; padding: 0; list-style: none; }

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.container {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.narrow { width: min(100% - 2.5rem, 780px); }

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  backdrop-filter: blur(16px);
  background: rgba(6, 16, 24, 0.55);
  border-bottom: 1px solid transparent;
  transition: background .3s, border-color .3s;
}

.site-header.scrolled {
  background: rgba(6, 16, 24, 0.92);
  border-bottom-color: var(--line);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: #0a1520;
  flex-shrink: 0;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--accent);
  position: relative;
  transform: rotate(45deg);
  box-shadow: 0 0 18px rgba(42, 212, 196, 0.25);
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 7px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text strong {
  font-size: 1.05rem;
  letter-spacing: 0.08em;
}

.brand-text small {
  font-family: var(--font-display);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  opacity: 0.85;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.site-nav a {
  font-size: 0.92rem;
  color: var(--muted);
  transition: color .2s;
  position: relative;
}

.site-nav a:hover,
.site-nav a.active { color: var(--text); }

.site-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  background: var(--accent);
}

.nav-cta {
  padding: 0.55rem 1rem;
  border: 1px solid var(--accent);
  color: var(--accent) !important;
  border-radius: var(--radius);
}

.nav-cta:hover {
  background: rgba(42, 212, 196, 0.12);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  background: transparent;
  border: 1px solid var(--line);
  padding: 10px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: transform .2s, background .2s, border-color .2s, box-shadow .2s;
}

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

.btn-primary {
  background: linear-gradient(120deg, #1ec9b8, #2a9fd8);
  color: #041018;
  box-shadow: 0 8px 30px rgba(42, 212, 196, 0.25);
}

.btn-ghost {
  border-color: rgba(232, 244, 248, 0.35);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.btn-ghost.light { border-color: rgba(255, 255, 255, 0.4); }

.text-link {
  color: var(--accent);
  font-weight: 500;
}

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--accent);
  margin-bottom: 0.8rem;
}

.lead { font-size: 1.08rem; color: #b7cbd6; }

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: calc(var(--header-h) + 4rem) 0 0;
  overflow: hidden;
}

.hero-media-layer {
  position: absolute;
  inset: 0;
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 1;
  /* no CSS filter on video — iOS/WeChat often shows black frame with audio only */
  background: #061018;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.04);
  animation: heroZoom 18s ease-in-out infinite alternate;
  z-index: 0;
}

.hero-media .hero-bg-fallback {
  z-index: 0;
  animation: none;
}

.hero-media .hero-video[data-ready="1"] ~ .hero-bg-fallback {
  opacity: 0;
  transition: opacity .6s;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    linear-gradient(90deg, rgba(6, 16, 24, 0.88) 0%, rgba(6, 16, 24, 0.45) 48%, rgba(6, 16, 24, 0.28) 100%),
    linear-gradient(180deg, rgba(6, 16, 24, 0.25) 0%, rgba(6, 16, 24, 0.82) 100%);
}

.hero-scan {
  position: absolute;
  inset: 0;
  z-index: 3;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(42, 212, 196, 0.025) 3px,
    rgba(42, 212, 196, 0.025) 4px
  );
  pointer-events: none;
  animation: scanPulse 4s ease-in-out infinite;
}

.hero-content {
  position: relative;
  z-index: 4;
  padding-bottom: 5rem;
  max-width: 820px;
  margin-left: max(calc((100% - var(--max)) / 2 + 1.25rem), 1.25rem);
  margin-right: auto;
  width: min(100% - 2.5rem, 820px);
}

.hero-brand {
  font-family: var(--font-display);
  letter-spacing: 0.35em;
  font-size: 0.78rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 5.8rem);
  letter-spacing: 0.12em;
  margin-bottom: 0.4em;
  background: linear-gradient(180deg, #fff 20%, #8fd9d0);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: #c5dae6;
  max-width: 28em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2rem;
}

.hero-metrics {
  position: relative;
  z-index: 4;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  background: rgba(6, 16, 24, 0.72);
  backdrop-filter: blur(10px);
}

.metric {
  padding: 1.4rem 1.2rem;
  text-align: center;
  border-right: 1px solid var(--line);
}

.metric:last-child { border-right: none; }

.metric span {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.04em;
}

.metric .unit { font-size: 0.55em; }

.metric small {
  color: var(--muted);
  font-size: 0.82rem;
}

/* Sections */
.section {
  padding: 6rem 0;
  position: relative;
}

.section-dark { background: var(--bg-2); }
.section-muted { background: linear-gradient(180deg, #081622, #0a1a28); }

.section-head {
  max-width: 640px;
  margin-bottom: 3rem;
}

.section-head h2,
.page-hero h1,
.section-inline-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
}

.section-head.light p,
.section-head.light h2 { color: #dff4f1; }

.section-action { margin-top: 2.5rem; text-align: center; }

.page-hero {
  padding: calc(var(--header-h) + 4rem) 0 3.5rem;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(42, 212, 196, 0.12), transparent 50%),
    radial-gradient(ellipse at 80% 0%, rgba(78, 168, 255, 0.1), transparent 45%),
    var(--bg-2);
  border-bottom: 1px solid var(--line);
}

.page-hero.compact { padding-bottom: 2.5rem; }
.page-hero .model {
  font-family: var(--font-display);
  font-size: 0.55em;
  color: var(--accent);
  letter-spacing: 0.08em;
}

.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3rem;
  align-items: center;
}

.intro-panel {
  position: relative;
}

.intro-panel img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(1.05) contrast(1.05);
}

.intro-badge {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  padding: 0.9rem 1.1rem;
  background: rgba(6, 16, 24, 0.88);
  border-left: 3px solid var(--accent);
  backdrop-filter: blur(8px);
}

.intro-badge strong {
  display: block;
  font-family: var(--font-num);
  font-size: 1.6rem;
  color: var(--accent);
}

.intro-badge span { color: var(--muted); font-size: 0.85rem; }

.media-frame img {
  filter: saturate(1.05) contrast(1.06);
}

/* Factory showcase */
.factory-spotlight {
  background:
    radial-gradient(ellipse at 10% 0%, rgba(42, 212, 196, 0.08), transparent 45%),
    var(--bg);
}

.factory-stage {
  display: grid;
  grid-template-columns: 1.45fr 0.9fr;
  gap: 1.2rem;
  margin-bottom: 1.2rem;
  align-items: stretch;
}

.factory-video-frame {
  position: relative;
  border: 1px solid var(--line);
  background: #02080d;
  overflow: hidden;
  min-height: 220px;
  aspect-ratio: 16/9;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.factory-video-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  border: 1px solid rgba(42, 212, 196, 0.18);
}

.factory-video-frame video {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: contain;
  background: #000;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}

.factory-video-meta {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.45rem 0.75rem;
  background: rgba(6, 16, 24, 0.82);
  border: 1px solid var(--line);
  font-size: 0.82rem;
  color: #d7ebf3;
  backdrop-filter: blur(8px);
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(42, 212, 196, 0.6);
  animation: livePulse 1.8s ease-out infinite;
}

.factory-side {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.factory-photo {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  overflow: hidden;
  flex: 1;
  background: #061018;
}

.factory-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 280px;
  transition: transform .6s ease;
  filter: saturate(1.05) contrast(1.05);
}

.factory-photo:hover img { transform: scale(1.04); }

.factory-photo figcaption,
.factory-tile figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.1rem 1rem 0.9rem;
  background: linear-gradient(transparent, rgba(4, 12, 18, 0.92));
  color: #dcecf3;
  font-size: 0.88rem;
}

.factory-tile figcaption span {
  display: block;
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.factory-tile figcaption strong {
  font-weight: 600;
  font-size: 1rem;
}

.factory-note {
  padding: 1.1rem 1.15rem;
  border-left: 3px solid var(--accent);
  background: rgba(14, 32, 48, 0.78);
  border: 1px solid var(--line);
  border-left-width: 3px;
  border-left-color: var(--accent);
}

.factory-note strong {
  display: block;
  color: #fff;
  margin-bottom: 0.35rem;
}

.factory-note p { margin: 0; font-size: 0.9rem; }

.factory-mosaic {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1rem;
}

.factory-tile {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  overflow: hidden;
  aspect-ratio: 1;
  background: #061018;
}

.factory-tile.wide {
  aspect-ratio: auto;
  min-height: 280px;
}

.factory-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .55s ease, filter .55s ease;
  filter: saturate(1.04) contrast(1.06);
}

.factory-tile:hover img {
  transform: scale(1.05);
  filter: saturate(1.12) contrast(1.1);
}

.page-hero-media {
  position: relative;
  overflow: hidden;
  border-bottom: none;
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  background-image: var(--hero-img);
  background-size: cover;
  background-position: center;
  filter: saturate(1.05) contrast(1.08) brightness(0.45);
  transform: scale(1.03);
}

.page-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 16, 24, 0.45), rgba(6, 16, 24, 0.88));
}

.page-hero-media .container {
  position: relative;
  z-index: 1;
}

@keyframes livePulse {
  0% { box-shadow: 0 0 0 0 rgba(42, 212, 196, 0.55); }
  70% { box-shadow: 0 0 0 10px rgba(42, 212, 196, 0); }
  100% { box-shadow: 0 0 0 0 rgba(42, 212, 196, 0); }
}

/* Gallery / Videos / Honors */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

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

.gallery-card {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
  transition: border-color .25s, transform .25s;
}

.gallery-card:hover {
  border-color: rgba(42, 212, 196, 0.45);
  transform: translateY(-3px);
}

.gallery-shot {
  position: relative;
  display: block;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.gallery-shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s;
  filter: saturate(1.05) contrast(1.05);
}

.gallery-card:hover .gallery-shot img { transform: scale(1.05); }

.gallery-card figcaption {
  padding: 1rem 1.1rem 1.2rem;
}

.gallery-card h3 {
  font-size: 1.02rem;
  margin-bottom: 0.35rem;
}

.gallery-card p {
  margin: 0;
  font-size: 0.88rem;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
}

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

.video-card {
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.video-frame {
  position: relative;
  background: #000;
  aspect-ratio: 16/9;
  overflow: hidden;
  /* keep opacity compositing off video ancestors on iOS */
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}

.video-frame video {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  background: #000;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}

/* iOS: opacity animation on ancestors can blank video while audio still plays */
.reveal:has(video) {
  opacity: 1;
  transform: none;
}

.video-body {
  padding: 1rem 1.15rem 1.25rem;
}

.video-body h3 {
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}

.video-body p {
  margin: 0;
  font-size: 0.9rem;
}

.honor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

.honor-card {
  display: grid;
  gap: 0.9rem;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
  transition: border-color .25s;
}

.honor-card:hover { border-color: rgba(42, 212, 196, 0.45); }

.honor-card img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.honor-card > div { padding: 0 1.1rem 1.2rem; }
.honor-card p { margin: 0; font-size: 0.9rem; }

.honor-feature {
  margin: 0;
  border: 1px solid var(--line);
  overflow: hidden;
  position: relative;
}

.honor-feature img {
  width: 100%;
  aspect-ratio: 16/11;
  object-fit: cover;
}

.honor-feature figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1rem;
  background: linear-gradient(transparent, rgba(4, 12, 18, 0.92));
  color: #dcecf3;
  font-size: 0.9rem;
}

.honor-band {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 4.5rem 0;
}

.honor-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6, 16, 24, 0.9), rgba(6, 16, 24, 0.55));
}

.honor-band-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.honor-band h2 { color: #fff; }
.honor-band p { color: #c5dae6; max-width: 36em; }

.about-logo-card {
  margin: 0;
  padding: 1.2rem;
  border: 1px solid var(--line);
  background: #0a1520;
  display: grid;
  place-items: center;
}

.about-logo-card img {
  width: min(100%, 180px);
  height: auto;
}

.spec-sheet {
  margin: 1.8rem 0 0;
  border: 1px solid var(--line);
  background: #fff;
  padding: 0.8rem;
}

.spec-sheet img {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
}

.spec-sheet figcaption {
  margin-top: 0.6rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.88rem;
}

/* —— 使用说明书 —— */
.manual-page {
  padding-top: 2.5rem;
}

.manual-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 2.5rem;
  align-items: start;
}

.manual-toc {
  position: sticky;
  top: 5.5rem;
  padding: 1.25rem 1.2rem 1.4rem;
  border: 1px solid var(--line);
  background:
    linear-gradient(160deg, rgba(42, 212, 196, 0.08), transparent 55%),
    #0a1520;
  border-radius: 4px;
}

.manual-toc nav {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 0.85rem;
}

.manual-toc nav a {
  display: block;
  padding: 0.45rem 0.65rem;
  color: #b7c9d6;
  font-size: 0.92rem;
  border-left: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.manual-toc nav a:hover {
  color: #fff;
  border-left-color: var(--accent);
  background: rgba(42, 212, 196, 0.08);
}

.manual-body {
  min-width: 0;
}

.manual-block {
  margin-bottom: 2.8rem;
  padding-bottom: 2.4rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.manual-block:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.manual-block > h2 {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin: 0 0 1.2rem;
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
  color: #fff;
}

.manual-block > h2 span {
  font-family: Orbitron, sans-serif;
  font-size: 0.85em;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.manual-block h3 {
  margin: 1.2rem 0 0.65rem;
  font-size: 1.05rem;
  color: #e8f2f7;
}

.manual-block .lead {
  font-size: 1.08rem;
  line-height: 1.75;
  color: #c5dae6;
  margin: 0 0 1.2rem;
}

.manual-callout {
  padding: 1rem 1.15rem;
  border: 1px solid rgba(42, 212, 196, 0.35);
  border-left: 3px solid var(--accent);
  background: rgba(42, 212, 196, 0.07);
  border-radius: 2px;
}

.manual-callout strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--accent);
  font-size: 0.92rem;
  letter-spacing: 0.04em;
}

.manual-callout p {
  margin: 0;
  color: #d5e6ef;
  line-height: 1.65;
}

.manual-callout.warn {
  border-color: rgba(255, 170, 90, 0.4);
  border-left-color: #ffaa5a;
  background: rgba(255, 170, 90, 0.08);
}

.manual-callout.warn strong {
  color: #ffaa5a;
}

.manual-grid-3,
.manual-grid-2 {
  display: grid;
  gap: 1rem;
}

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

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

.manual-card {
  padding: 1.15rem 1.2rem 1.25rem;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #0c1824, #09131c);
  border-radius: 4px;
}

.manual-card h3 {
  margin: 0 0 0.7rem;
  font-size: 1rem;
  color: var(--accent);
}

.manual-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: #b7c9d6;
  line-height: 1.7;
}

.manual-card li + li {
  margin-top: 0.35rem;
}

.manual-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.num-list {
  margin: 0;
  padding-left: 1.2rem;
  color: #c5dae6;
  line-height: 1.75;
}

.num-list li + li {
  margin-top: 0.45rem;
}

.workflow-steps {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.workflow-steps li {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--line);
  background: #0a1520;
  border-radius: 4px;
}

.workflow-steps em {
  font-style: normal;
  font-family: Orbitron, sans-serif;
  font-size: 0.78rem;
  color: var(--accent);
  min-width: 1.6rem;
}

.workflow-steps span {
  color: #e8f2f7;
  font-size: 0.95rem;
}

.fault-table {
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  background: #0a1520;
}

.fault-head,
.fault-row {
  display: grid;
  grid-template-columns: 1.1fr 1.4fr 1.5fr;
  gap: 0.75rem;
  padding: 0.9rem 1.1rem;
}

.fault-head {
  background: rgba(42, 212, 196, 0.12);
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.fault-row {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: #b7c9d6;
  font-size: 0.92rem;
  line-height: 1.55;
  align-items: start;
}

.fault-row strong {
  color: #e8f2f7;
  font-weight: 600;
}

.fault-row:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}

.section-action {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
  align-items: center;
}

/* Products */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.product-card {
  background: var(--panel);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: border-color .25s, transform .25s, box-shadow .25s;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(42, 212, 196, 0.45);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.product-cover {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}

.product-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s;
}

.product-card:hover .product-cover img { transform: scale(1.06); }

.tag {
  position: absolute;
  top: 0.8rem;
  left: 0.8rem;
  padding: 0.25rem 0.55rem;
  font-size: 0.72rem;
  background: rgba(6, 16, 24, 0.85);
  border: 1px solid var(--line);
  color: var(--accent);
}

.product-body {
  padding: 1.25rem 1.3rem 1.4rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-body h3 {
  font-size: 1.12rem;
  margin-bottom: 0.45rem;
}

.product-body em {
  font-style: normal;
  font-family: var(--font-display);
  font-size: 0.72rem;
  color: var(--accent-2);
  letter-spacing: 0.04em;
}

.product-body p {
  font-size: 0.9rem;
  flex: 1;
}

.card-link {
  color: var(--accent);
  font-size: 0.88rem;
  margin-top: 0.8rem;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.filter {
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

.filter.active,
.filter:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.detail-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: start;
}

.detail-media img {
  width: 100%;
  border: 1px solid var(--line);
}

.feature-list li {
  position: relative;
  padding: 0.55rem 0 0.55rem 1.3rem;
  border-bottom: 1px solid var(--line);
  color: #c5d7e2;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1rem;
  width: 8px;
  height: 8px;
  background: var(--accent);
  transform: rotate(45deg);
}

.spec-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.spec-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.2rem;
  background: var(--bg-2);
}

.spec-row span { color: var(--muted); }

/* Tech */
.tech-strip {
  background-size: cover;
  background-position: center;
  background-color: var(--bg-2);
  position: relative;
}

.tech-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(6, 16, 24, 0.82);
}

.tech-strip .container { position: relative; z-index: 1; }

.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

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

.tech-card {
  padding: 1.5rem 1.4rem;
  background: rgba(10, 24, 36, 0.78);
  border: 1px solid var(--line);
  transition: border-color .25s, transform .25s;
}

.tech-card:hover {
  border-color: rgba(42, 212, 196, 0.5);
  transform: translateY(-3px);
}

.tech-metric {
  font-family: var(--font-num);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.03em;
  margin-bottom: 0.4rem;
}

.check-list li {
  padding: 0.7rem 0 0.7rem 1.5rem;
  border-bottom: 1px solid var(--line);
  color: #c9dde8;
  position: relative;
}

.check-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.pillar {
  padding: 1.5rem 1.2rem;
  border-top: 2px solid var(--accent);
  background: var(--bg-2);
}

.pillar h3 { font-size: 1.05rem; }
.pillar p { font-size: 0.9rem; margin: 0; }

/* Apps */
.app-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.app-card {
  padding: 1.6rem 1.3rem;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(16, 36, 51, 0.9), rgba(8, 20, 30, 0.9));
  min-height: 220px;
  display: flex;
  flex-direction: column;
}

.app-index {
  font-family: var(--font-display);
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}

.app-card strong {
  margin-top: auto;
  color: var(--warn);
  font-size: 0.92rem;
  font-weight: 500;
}

/* News */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

.news-card,
.news-row {
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
  transition: border-color .25s;
}

.news-card:hover,
.news-row:hover { border-color: rgba(42, 212, 196, 0.45); }

.news-cover {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.news-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-body { padding: 1.2rem 1.3rem 1.4rem; }
.news-body time,
.news-article time {
  font-family: var(--font-num);
  color: var(--accent);
  font-size: 0.9rem;
}

.news-list { display: grid; gap: 1.2rem; }

.news-row {
  display: grid;
  grid-template-columns: 280px 1fr;
}

.news-article h1 { margin: 0.4rem 0 0.8rem; }
.article-cover { margin: 1.8rem 0; border: 1px solid var(--line); }
.prose p { color: #b9ceda; font-size: 1.02rem; }

/* Contact / CTA */
.cta-band {
  padding: 3.5rem 0;
  background:
    linear-gradient(90deg, rgba(30, 201, 184, 0.12), rgba(78, 168, 255, 0.08)),
    var(--bg-3);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.cta-inner h2 { margin-bottom: 0.4rem; color: #fff; }
.cta-inner p { margin: 0; }

.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 2.5rem;
}

.contact-meta li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.contact-meta span { color: var(--muted); font-size: 0.85rem; }
.contact-meta strong { color: #fff; font-weight: 500; }

.contact-form,
.admin-form {
  padding: 1.8rem;
  border: 1px solid var(--line);
  background: rgba(10, 24, 36, 0.65);
}

.form-row { margin-bottom: 1rem; }
.form-row label {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.form-row input,
.form-row select,
.form-row textarea,
.admin-form input,
.admin-form select,
.admin-form textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  border-radius: var(--radius);
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus,
.admin-form input:focus,
.admin-form select:focus,
.admin-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.flash {
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  border: 1px solid var(--line);
}

.flash-success { border-color: var(--success); color: var(--success); }
.flash-error { border-color: var(--danger); color: var(--danger); }

.stat-stack { display: grid; gap: 0.9rem; }

.stat-block {
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--line);
  background: var(--bg-2);
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

.stat-block strong {
  font-family: var(--font-num);
  font-size: 2rem;
  color: var(--accent);
}

.vision-band blockquote {
  margin: 0;
  font-size: clamp(1.15rem, 2.2vw, 1.55rem);
  color: #d7ebf3;
  line-height: 1.8;
  border-left: 3px solid var(--accent);
  padding-left: 1.4rem;
}

.empty { color: var(--muted); padding: 2rem 0; }

/* Footer */
.site-footer {
  padding: 3.5rem 0 1.5rem;
  border-top: 1px solid var(--line);
  background: #040c12;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-brand p { margin-top: 1rem; }
.site-footer h4 {
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 1rem;
}

.site-footer a,
.site-footer p {
  display: block;
  color: var(--muted);
  margin-bottom: 0.45rem;
  font-size: 0.92rem;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

.footer-bottom-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-bottom a,
.beian-link {
  display: inline;
  color: var(--muted);
  margin-bottom: 0;
}

.beian-link:hover {
  color: var(--text);
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

.delay-1 { transition-delay: .12s; }
.delay-2 { transition-delay: .22s; }
.delay-3 { transition-delay: .32s; }

@keyframes heroZoom {
  from { transform: scale(1.02); }
  to { transform: scale(1.08); }
}

@keyframes scanPulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* Responsive */
@media (max-width: 980px) {
  .product-grid,
  .tech-grid,
  .tech-grid.large,
  .news-grid,
  .gallery-grid,
  .video-grid,
  .video-grid.preview,
  .honor-grid { grid-template-columns: repeat(2, 1fr); }
  .honor-band-inner { flex-direction: column; align-items: flex-start; }
  .app-grid,
  .pillar-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-metrics { grid-template-columns: repeat(2, 1fr); }
  .metric:nth-child(odd) { border-right: 1px solid var(--line); }
  .metric:nth-child(2),
  .metric:nth-child(4) { border-right: none; }
  .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .split,
  .detail-layout,
  .contact-layout,
  .factory-stage { grid-template-columns: 1fr; }
  .factory-mosaic { grid-template-columns: 1fr 1fr; }
  .factory-tile.wide { grid-column: 1 / -1; min-height: 240px; }
  .news-row { grid-template-columns: 1fr; }
  .spec-table { grid-template-columns: 1fr; }
  .manual-layout { grid-template-columns: 1fr; }
  .manual-toc { position: static; }
  .manual-toc nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.25rem;
  }
  .manual-grid-3,
  .manual-grid-2,
  .manual-split,
  .workflow-steps { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
  .footer-brand { grid-column: 1 / -1; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .section { padding: 4.5rem 0; }
}

@media (max-width: 760px) {
  :root { --header-h: 60px; }

  .container,
  .narrow {
    width: min(100% - 1.5rem, var(--max));
  }

  body.nav-open {
    overflow: hidden;
    touch-action: none;
  }

  .site-header {
    padding-top: env(safe-area-inset-top);
    height: calc(var(--header-h) + env(safe-area-inset-top));
  }

  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
    width: 44px;
    height: 44px;
    min-width: 44px;
    padding: 10px;
    z-index: 120;
    border-radius: var(--radius);
    -webkit-tap-highlight-color: transparent;
  }

  .nav-toggle span {
    transition: transform .25s, opacity .25s;
  }

  .nav-toggle.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle.is-open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .site-nav {
    display: flex;
    position: fixed;
    top: calc(var(--header-h) + env(safe-area-inset-top));
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(4, 12, 18, 0.98);
    border-bottom: none;
    padding: 0.75rem 0 max(1.5rem, env(safe-area-inset-bottom));
    z-index: 110;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity .25s, visibility .25s, transform .25s;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .site-nav.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
  }

  .site-nav a {
    padding: 1rem 1.4rem;
    font-size: 1.05rem;
    min-height: 48px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(120, 200, 230, 0.08);
  }

  .site-nav a.active {
    color: var(--accent);
    background: rgba(42, 212, 196, 0.06);
  }

  .site-nav a.active::after { display: none; }

  .nav-cta {
    margin: 1rem 1.4rem 0.5rem;
    text-align: center;
    justify-content: center;
    border-bottom: none !important;
  }

  .hero {
    min-height: 100svh;
    padding: calc(var(--header-h) + env(safe-area-inset-top) + 2.5rem) 0 0;
    justify-content: space-between;
  }

  .hero-content {
    margin-left: 0.75rem;
    margin-right: 0.75rem;
    width: auto;
    max-width: none;
    padding-bottom: 2rem;
  }

  .hero-brand {
    letter-spacing: 0.2em;
    font-size: 0.68rem;
  }

  .hero h1 {
    font-size: clamp(2.4rem, 14vw, 3.4rem);
    letter-spacing: 0.06em;
  }

  .hero-lead {
    font-size: 0.98rem;
    max-width: none;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .hero-actions .btn {
    width: 100%;
    min-height: 48px;
  }

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

  .metric {
    padding: 1rem 0.7rem;
  }

  .metric span {
    font-size: 1.55rem;
  }

  .metric small {
    font-size: 0.75rem;
  }

  .page-hero {
    padding: calc(var(--header-h) + env(safe-area-inset-top) + 2.2rem) 0 2.2rem;
  }

  .page-hero h1,
  .section-head h2,
  .section-inline-title {
    font-size: clamp(1.55rem, 7vw, 2rem);
  }

  .section {
    padding: 3.2rem 0;
  }

  .section-head {
    margin-bottom: 2rem;
  }

  .product-grid,
  .tech-grid,
  .tech-grid.large,
  .news-grid,
  .app-grid,
  .pillar-grid,
  .factory-mosaic,
  .gallery-grid,
  .gallery-grid.compact,
  .video-grid,
  .video-grid.preview,
  .honor-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .factory-video-frame {
    min-height: 200px;
  }

  .factory-video-frame video,
  .video-frame video {
    min-height: 200px;
    max-height: none;
    object-fit: contain;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(6, 16, 24, 0.72) 0%, rgba(6, 16, 24, 0.35) 55%, rgba(6, 16, 24, 0.25) 100%),
      linear-gradient(180deg, rgba(6, 16, 24, 0.2) 0%, rgba(6, 16, 24, 0.7) 100%);
  }

  .factory-photo img {
    min-height: 260px;
    max-height: 420px;
  }

  .factory-tile.wide {
    min-height: 200px;
  }

  .filter-bar {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    margin-left: -0.75rem;
    margin-right: -0.75rem;
    padding: 0 0.75rem 0.35rem;
    gap: 0.5rem;
  }

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

  .filter {
    flex: 0 0 auto;
    white-space: nowrap;
    min-height: 40px;
    display: inline-flex;
    align-items: center;
  }

  .intro-badge {
    left: 0.6rem;
    right: 0.6rem;
    bottom: 0.6rem;
    padding: 0.75rem 0.9rem;
  }

  .intro-badge strong { font-size: 1.35rem; }

  .spec-row {
    flex-direction: column;
    gap: 0.25rem;
  }

  .tech-metric { font-size: 2rem; }

  .app-card { min-height: 0; }

  .cta-band { padding: 2.5rem 0; }

  .cta-inner .btn {
    width: 100%;
    min-height: 48px;
  }

  .contact-form,
  .admin-form {
    padding: 1.2rem;
  }

  .form-row input,
  .form-row select,
  .form-row textarea {
    font-size: 16px; /* prevent iOS zoom */
    min-height: 46px;
  }

  .form-row textarea { min-height: 120px; }

  .btn {
    min-height: 44px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.6rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
    padding-bottom: env(safe-area-inset-bottom);
  }

  .footer-bottom-links {
    gap: 0.75rem;
  }

  .vision-band blockquote {
    font-size: 1.05rem;
    padding-left: 1rem;
  }

  .stat-block {
    flex-direction: column;
    gap: 0.2rem;
  }

  .stat-block strong { font-size: 1.7rem; }

  .news-article h1 {
    font-size: 1.45rem;
  }

  .manual-toc nav { grid-template-columns: 1fr; }
  .manual-grid-3,
  .manual-grid-2,
  .manual-split,
  .workflow-steps { grid-template-columns: 1fr; }

  .fault-head { display: none; }

  .fault-row {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }
}

@media (max-width: 400px) {
  .brand-text small { display: none; }
  .hero-metrics .metric span { font-size: 1.35rem; }
  .product-body { padding: 1rem 1.05rem 1.15rem; }
}

@media (hover: none) and (pointer: coarse) {
  .product-card:hover,
  .tech-card:hover {
    transform: none;
  }

  .product-card:active,
  .tech-card:active {
    border-color: rgba(42, 212, 196, 0.45);
  }
}