/* 禾芯动力官网 v2 · 科技感 */
:root {
  --bg: #020208;
  --bg2: #050818;
  --card: rgba(8, 14, 32, 0.78);
  --green: #00ff88;
  --green-dim: rgba(0, 255, 136, 0.1);
  --cyan: #00bfff;
  --cyan-dim: rgba(0, 191, 255, 0.08);
  --gold: #e8b84a;
  --text: #e8f2ff;
  --muted: rgba(200, 220, 255, 0.55);
  --border: rgba(100, 180, 255, 0.15);
  --glow: 0 0 40px rgba(0, 255, 136, 0.12);
  --font: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --radius: 16px;
  /* 整体 UI 缩放，约等于浏览器 115% 缩放观感 */
  --scale: 1.15;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

@media (min-width: 769px) {
  html { zoom: var(--scale); }
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-inline: clamp(24px, 5vw, 64px);
}

/* Particle canvas */
#particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.aurora {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  opacity: 0.45;
}

.aurora::before,
.aurora::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  animation: auroraDrift 24s ease-in-out infinite alternate;
}

.aurora::before {
  width: 60vw;
  height: 60vw;
  top: -20%;
  right: -15%;
  background: radial-gradient(circle, rgba(100, 60, 180, 0.2), transparent 70%);
}

.aurora::after {
  width: 50vw;
  height: 50vw;
  bottom: -25%;
  left: -15%;
  background: radial-gradient(circle, rgba(0, 100, 200, 0.15), transparent 70%);
  animation-delay: -12s;
  animation-duration: 28s;
}

@keyframes auroraDrift {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(4%, 6%) scale(1.12); }
}

.scanline {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(100, 140, 255, 0.008) 3px,
    rgba(100, 140, 255, 0.008) 4px
  );
  opacity: 0.25;
}

.scanline::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(180deg, transparent, rgba(100, 160, 255, 0.03), transparent);
  animation: scanSweep 12s linear infinite;
}

@keyframes scanSweep {
  0% { top: -120px; }
  100% { top: 100%; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 24px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.25s, box-shadow 0.25s;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: linear-gradient(135deg, var(--green), #00cc6a);
  color: #021008;
  box-shadow: 0 0 30px rgba(0, 255, 136, 0.35);
}

.btn-glass {
  background: rgba(0, 255, 136, 0.06);
  border: 1px solid var(--border);
  color: var(--green);
  backdrop-filter: blur(8px);
}

.btn-lg { padding: 14px 30px; font-size: 16px; }
.btn-block { width: 100%; }

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(3, 8, 16, 0.75);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s, box-shadow 0.3s;
}

.header.scrolled {
  background: rgba(3, 8, 16, 0.95);
  box-shadow: 0 4px 40px rgba(0, 0, 0, 0.5);
}

.header-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-inline: clamp(24px, 5vw, 64px);
  height: 72px;
  display: flex;
  align-items: center;
  gap: 40px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-mark {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.logo-text {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.logo-text em {
  display: block;
  font-style: normal;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.14em;
  font-weight: 500;
}

.nav {
  display: flex;
  gap: 6px;
  flex: 1;
  justify-content: center;
}

.nav a {
  padding: 8px 20px;
  border-radius: 8px;
  font-size: 15px;
  color: var(--muted);
  position: relative;
  transition: color 0.2s;
}

.nav a:hover,
.nav a.on { color: var(--green); }

.nav a.on::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 20px;
  right: 20px;
  height: 2px;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  border-radius: 2px;
}

.nav-cta { flex-shrink: 0; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  margin-left: auto;
}

.menu-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 112px 0 72px;
  z-index: 2;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 50% 50%, rgba(100, 140, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 20%, transparent 75%);
  opacity: 0.6;
}

.hero-glow {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 70%;
  height: 80%;
  background: radial-gradient(ellipse, rgba(0, 255, 136, 0.08), transparent 65%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  column-gap: clamp(40px, 5vw, 72px);
  row-gap: 40px;
  align-items: center;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  width: 100%;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--cyan);
  background: var(--cyan-dim);
  border: 1px solid rgba(0, 191, 255, 0.25);
  margin-bottom: 28px;
  align-self: flex-start;
}

.chip .pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 191, 255, 0.6); }
  50% { opacity: 0.7; box-shadow: 0 0 0 8px rgba(0, 191, 255, 0); }
}

.hero h1 {
  font-size: clamp(40px, 5.2vw, 60px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.gradient {
  background: linear-gradient(135deg, var(--green), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  margin-top: 24px;
  font-size: clamp(16px, 1.6vw, 18px);
  color: var(--muted);
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.hero-trust {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-trust li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}

.hero-trust li::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
}

/* Hero visual */
.hero-frame {
  position: relative;
  width: 100%;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--glow), 0 40px 80px rgba(0, 0, 0, 0.5);
}

.frame-corner {
  position: absolute;
  width: 28px;
  height: 28px;
  border: 2px solid var(--green);
  z-index: 3;
  opacity: 0.7;
}

.frame-corner.tl { top: 12px; left: 12px; border-right: none; border-bottom: none; }
.frame-corner.tr { top: 12px; right: 12px; border-left: none; border-bottom: none; }
.frame-corner.bl { bottom: 12px; left: 12px; border-right: none; border-top: none; }
.frame-corner.br { bottom: 12px; right: 12px; border-left: none; border-top: none; }

.hud-tag {
  position: absolute;
  z-index: 3;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.hud-tag.tl { top: 16px; left: 16px; color: var(--green); }
.hud-tag.br { bottom: 16px; right: 16px; color: var(--cyan); }

.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.scroll-hint span {
  width: 1px;
  height: 40px;
  background: linear-gradient(var(--green), transparent);
  animation: scrollLine 2s infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* Image placeholders */
.img-placeholder {
  position: relative;
  width: 100%;
  background: #060e16;
  border: 1px dashed rgba(0, 255, 136, 0.25);
  overflow: hidden;
}

.img-placeholder::after {
  content: attr(data-label);
  position: absolute;
  bottom: 10px;
  left: 12px;
  right: 12px;
  font-size: 11px;
  color: rgba(0, 255, 136, 0.45);
  text-align: center;
  pointer-events: none;
}

.img-placeholder svg { width: 100%; height: auto; display: block; }

.ratio-4-3 { aspect-ratio: 4/3; }
.ratio-21-9 { aspect-ratio: 21/9; }

.img-placeholder.avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  color: var(--green);
  border-style: solid;
  border-color: rgba(0, 255, 136, 0.35);
}

.img-placeholder.avatar::after { display: none; }

/* Real media */
.media-img {
  overflow: hidden;
  background: #060e16;
  border: 1px solid var(--border);
}

.media-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.product-card:hover .media-img img,
.news-item:hover .media-img img {
  transform: scale(1.04);
}

.media-img.ratio-4-3 { aspect-ratio: 4/3; }
.media-img.about-img { border-radius: var(--radius); aspect-ratio: 4/3; }
.media-img.news-thumb { border: none; border-radius: 0; aspect-ratio: 16/9; }

.product-showcase-img {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: #060e16;
}

.product-showcase-img img {
  width: 100%;
  height: auto;
  display: block;
}

.product-media {
  position: relative;
}

.product-media-aspect {
  width: 100%;
  height: auto;
  display: block;
  transition: opacity 0.3s ease;
}

.product-media-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: none;
  background: #060e16;
}

.product-media-poster {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.product-media.is-playing .product-media-aspect {
  opacity: 0;
}

.product-media.is-playing .product-media-video {
  display: block;
}

.product-media.is-playing .product-media-poster {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.media-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 68px;
  height: 68px;
  border-radius: 50%;
  border: 2px solid rgba(0, 255, 136, 0.55);
  background: rgba(3, 8, 16, 0.72);
  color: var(--green);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  box-shadow: 0 0 32px rgba(0, 255, 136, 0.18);
  transition: background 0.25s, border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}

.media-play-btn:hover {
  transform: translate(-50%, -50%) scale(1.06);
  background: rgba(0, 255, 136, 0.14);
  border-color: var(--green);
  box-shadow: 0 0 40px rgba(0, 255, 136, 0.3);
  color: #fff;
}

.media-play-btn svg {
  margin-left: 4px;
}

.hero-media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #060e16;
}

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  background: #060e16;
}

.hero-sound-btn {
  position: absolute;
  right: 14px;
  bottom: 14px;
  z-index: 4;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(0, 255, 136, 0.35);
  background: rgba(3, 8, 16, 0.78);
  color: var(--green);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.hero-sound-btn:hover {
  background: rgba(0, 255, 136, 0.14);
  border-color: var(--green);
  color: #fff;
}

.hero-sound-btn .icon-unmuted { display: none; }

.hero-sound-btn.is-unmuted .icon-muted { display: none; }

.hero-sound-btn.is-unmuted .icon-unmuted { display: block; }

/* Video gallery */
.video-gallery {
  margin: 48px 0 0;
}

.gallery-title {
  font-size: 20px;
  margin-bottom: 24px;
  text-align: center;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

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

.video-wrap {
  aspect-ratio: 16/9;
  background: #000;
}

.video-wrap video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.video-card p {
  padding: 14px 16px;
  font-size: 14px;
  color: var(--muted);
  text-align: center;
}

/* Sections */
.section {
  position: relative;
  z-index: 2;
  padding: 100px 0;
}

.section-sm {
  padding: 72px 0;
}

#products .home-value {
  margin-top: 56px;
  padding-top: 56px;
  border-top: 1px solid var(--border);
}

#products .home-metrics {
  margin-top: 48px;
}

#products .home-value .section-head,
#products .home-metrics .section-head {
  margin-bottom: 40px;
}

#products .home-metrics .metrics-bar {
  margin-top: 0;
}

.section-dark {
  background: linear-gradient(180deg, var(--bg2) 0%, var(--bg) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-head { margin-bottom: 56px; }
.section-head.center { text-align: center; }

.section-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--cyan);
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 800;
}

.section-head p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 16px;
}

/* Home · 核心价值 */
.drive-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.drive-card {
  padding: 28px 24px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.drive-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 255, 136, 0.35);
  box-shadow: var(--glow);
}

.drive-num {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--cyan);
  margin-bottom: 14px;
}

.drive-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.drive-card p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.loop-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px 16px;
  padding: 18px 28px;
  border-radius: 14px;
  background: linear-gradient(90deg, rgba(0, 255, 136, 0.06), rgba(0, 191, 255, 0.05));
  border: 1px solid var(--border);
}

.loop-step {
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(0, 255, 136, 0.2);
  color: var(--text);
}

.loop-step.accent {
  color: var(--green);
  border-color: rgba(0, 255, 136, 0.4);
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.12);
}

.loop-arrow {
  color: var(--green);
  font-size: 18px;
  font-weight: 700;
  opacity: 0.7;
}

/* Products */
.product-showcase {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 56px;
  padding: 32px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  backdrop-filter: blur(16px);
}

.product-showcase.flagship {
  background: linear-gradient(135deg, rgba(232, 184, 74, 0.05), rgba(0, 255, 136, 0.04));
  border-color: rgba(232, 184, 74, 0.22);
  box-shadow: 0 0 80px rgba(232, 184, 74, 0.05);
}

.product-matrix {
  margin-bottom: 48px;
  padding: 40px 36px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(8, 16, 28, 0.65), rgba(6, 12, 22, 0.4));
  border: 1px solid var(--border);
  backdrop-filter: blur(16px);
}

.product-matrix-head {
  text-align: center;
  margin-bottom: 36px;
}

.matrix-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--cyan);
  margin-bottom: 10px;
}

.product-matrix-head h3 {
  font-size: 26px;
  margin-bottom: 8px;
}

.product-matrix-head p {
  color: var(--muted);
  font-size: 15px;
}

.hardware-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.hardware-card {
  display: flex;
  flex-direction: column;
  border-radius: 16px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid rgba(0, 255, 136, 0.1);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.hardware-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 255, 136, 0.35);
  box-shadow: var(--glow);
}

.hardware-card-media {
  position: relative;
  aspect-ratio: 4 / 3;
  background: linear-gradient(165deg, rgba(0, 191, 255, 0.06), rgba(0, 0, 0, 0.2) 45%, #060e16);
  padding: 20px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.hardware-card-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.45s ease;
}

.hardware-card:hover .hardware-card-media img {
  transform: scale(1.05);
}

.hardware-role {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 1;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--green);
  background: rgba(3, 8, 16, 0.82);
  border: 1px solid rgba(0, 255, 136, 0.28);
  backdrop-filter: blur(8px);
}

.hardware-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 20px 18px 22px;
}

.hardware-card-body h3 {
  font-size: 17px;
  line-height: 1.35;
  margin-bottom: 10px;
}

.hardware-card-body p {
  margin-top: auto;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  background: rgba(232, 184, 74, 0.15);
  color: var(--gold);
  border: 1px solid rgba(232, 184, 74, 0.35);
  margin-bottom: 12px;
}

.badge-cyan {
  background: rgba(0, 191, 255, 0.12);
  color: var(--cyan);
  border-color: rgba(0, 191, 255, 0.35);
}

.product-showcase.reverse {
  margin-top: 48px;
  margin-bottom: 0;
  background: linear-gradient(135deg, rgba(0, 191, 255, 0.06), rgba(0, 255, 136, 0.04));
  border-color: rgba(0, 191, 255, 0.25);
  box-shadow: 0 0 60px rgba(0, 191, 255, 0.06);
}

.platform-frame {
  border: 1px solid rgba(0, 255, 136, 0.25);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45), 0 0 40px rgba(0, 255, 136, 0.08);
}

.platform-frame img {
  object-fit: contain;
  background: #050816;
}

.platform-carousel {
  border-radius: var(--radius);
  overflow: hidden;
  background: #050816;
}

.platform-carousel-viewport {
  position: relative;
  aspect-ratio: 16 / 10;
  background: #050816;
  overflow: hidden;
}

.platform-carousel-track {
  display: flex;
  height: 100%;
  transition: transform 0.45s ease;
}

.platform-slide {
  flex: 0 0 100%;
  margin: 0;
  height: 100%;
}

.platform-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(0, 255, 136, 0.35);
  background: rgba(3, 8, 16, 0.75);
  color: var(--green);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.carousel-arrow:hover {
  background: rgba(0, 255, 136, 0.15);
  border-color: var(--green);
  color: #fff;
}

.carousel-prev { left: 12px; }
.carousel-next { right: 12px; }

.carousel-dots {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  gap: 8px;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  transition: background 0.25s, transform 0.25s;
}

.carousel-dot:hover { background: rgba(255, 255, 255, 0.6); }

.carousel-dot.is-active {
  background: var(--green);
  transform: scale(1.2);
}

.product-showcase h3 {
  font-size: 28px;
  margin-bottom: 12px;
}

.product-showcase p {
  color: var(--muted);
  margin-bottom: 20px;
}

.spec-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.spec-tags li {
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 13px;
  background: var(--green-dim);
  border: 1px solid var(--border);
  color: var(--green);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.product-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 255, 136, 0.35);
  box-shadow: var(--glow);
}

.product-card.wide { grid-column: span 3; }

.product-card-body { padding: 20px; }

.product-card h3 { font-size: 18px; margin-bottom: 6px; }
.product-card p { font-size: 14px; color: var(--muted); }

.metrics-bar {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-top: 48px;
  padding: 28px;
  border-radius: var(--radius);
  background: linear-gradient(90deg, var(--green-dim), transparent);
  border: 1px solid var(--border);
  text-align: center;
}

.metrics-bar strong {
  display: block;
  font-size: 28px;
  font-weight: 800;
  color: var(--green);
}

.metrics-bar span {
  font-size: 12px;
  color: var(--muted);
}

/* About */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 56px;
}

.about-text .lead {
  font-size: 17px;
  color: var(--muted);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-text p { color: var(--muted); font-size: 15px; margin-bottom: 12px; }

.about-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.about-pills span {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  background: var(--green-dim);
  border: 1px solid var(--border);
  color: var(--green);
}

.about-img { border-radius: var(--radius); }

/* Team */
.team-section {
  margin-top: 56px;
  padding-top: 56px;
  border-top: 1px solid var(--border);
}

.team-header {
  text-align: center;
  margin-bottom: 36px;
}

.team-header h3 {
  font-size: clamp(26px, 3vw, 32px);
  font-weight: 800;
  margin: 8px 0 10px;
}

.team-header p {
  color: var(--muted);
  font-size: 16px;
}

.team-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
  padding: 20px 24px;
  border-radius: var(--radius);
  background: linear-gradient(90deg, var(--green-dim), transparent);
  border: 1px solid var(--border);
}

.team-stats div {
  text-align: center;
}

.team-stats strong {
  display: block;
  font-size: 24px;
  font-weight: 800;
  color: var(--green);
  line-height: 1.1;
}

.team-stats span {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 20px;
}

.team-section .partners-block {
  margin-top: 32px;
  margin-bottom: 0;
}

.partners-block {
  padding: 24px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
}

.partners-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 20px;
  text-align: center;
}

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

.partner-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 18px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(100, 180, 255, 0.1);
  transition: border-color 0.3s, background 0.3s, transform 0.3s;
}

.partner-item:hover {
  border-color: rgba(0, 255, 136, 0.28);
  background: rgba(0, 255, 136, 0.04);
  transform: translateY(-2px);
}

.partner-logo {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.partner-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.partner-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  text-align: center;
  line-height: 1.35;
}

.team-card,
.team-advisor {
  padding: 24px 22px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}

.team-card:hover {
  border-color: rgba(0, 255, 136, 0.35);
  box-shadow: var(--glow);
  transform: translateY(-3px);
}

.team-card-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.team-avatar {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: var(--green);
  background: rgba(0, 255, 136, 0.1);
  border: 1px solid rgba(0, 255, 136, 0.3);
}

.team-avatar.advisor {
  color: var(--gold);
  background: rgba(232, 184, 74, 0.12);
  border-color: rgba(232, 184, 74, 0.35);
}

.team-card h4,
.team-advisor h4 {
  font-size: 18px;
  margin-bottom: 4px;
  line-height: 1.3;
}

.team-advisor h4 em {
  font-style: normal;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
  margin-left: 6px;
}

.team-role {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--cyan);
  line-height: 1.4;
}

.team-card p,
.team-advisor p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.75;
}

.team-advisor {
  position: relative;
  background: linear-gradient(135deg, rgba(232, 184, 74, 0.06), rgba(0, 191, 255, 0.04));
  border-color: rgba(232, 184, 74, 0.28);
}

.team-advisor-tag {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--gold);
  background: rgba(232, 184, 74, 0.12);
  border: 1px solid rgba(232, 184, 74, 0.35);
}

.news-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.news-item {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--border);
  transition: border-color 0.3s;
}

.news-item:hover { border-color: rgba(0, 255, 136, 0.35); }

.news-thumb { border: none; border-radius: 0; }

.news-item > div:last-child { padding: 18px; }

.news-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 8px;
}

.news-item h4 { font-size: 15px; line-height: 1.5; }

/* Contact */
.contact-section {
  position: relative;
  padding-bottom: 120px;
  overflow: hidden;
}

.contact-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 80%, rgba(0, 255, 136, 0.07), transparent),
    radial-gradient(ellipse 50% 40% at 85% 20%, rgba(0, 191, 255, 0.06), transparent);
  pointer-events: none;
}

.contact-header {
  text-align: center;
  margin-bottom: 48px;
}

.contact-header h2 {
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 800;
  margin: 8px 0 12px;
}

.contact-header p {
  color: var(--muted);
  font-size: 16px;
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
  align-items: stretch;
  padding: 32px;
  border-radius: 24px;
  background: rgba(8, 16, 28, 0.75);
  border: 1px solid var(--border);
  backdrop-filter: blur(24px);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.contact-aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

.info-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
}

.info-tile {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(0, 255, 136, 0.12);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.info-body {
  flex: 1;
  min-width: 0;
}

.info-tile:hover {
  border-color: rgba(0, 255, 136, 0.3);
  box-shadow: 0 0 24px rgba(0, 255, 136, 0.06);
}

.info-tile.highlight {
  background: linear-gradient(135deg, rgba(0, 255, 136, 0.1), rgba(0, 191, 255, 0.06));
  border-color: rgba(0, 255, 136, 0.35);
}

.info-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 255, 136, 0.1);
  border: 1px solid rgba(0, 255, 136, 0.2);
  color: var(--green);
}

.info-icon svg {
  width: 22px;
  height: 22px;
}

.info-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 6px;
}

.info-tile p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

.info-name {
  font-size: 18px !important;
  font-weight: 700;
  color: var(--text) !important;
  margin-bottom: 4px;
}

.phone-link {
  display: inline-block;
  font-size: 22px;
  font-weight: 800;
  color: var(--green);
  letter-spacing: 0.02em;
  transition: text-shadow 0.3s;
}

.phone-link:hover {
  text-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
}

.contact-bottom {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.map-embed {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(0, 255, 136, 0.2);
  background: #060e16;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.map-embed iframe {
  display: block;
  width: 100%;
  flex: 1;
  min-height: 240px;
  height: 100%;
  border: none;
  filter: saturate(0.85) brightness(0.9) contrast(1.05);
}

.map-overlay {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(3, 8, 16, 0.92);
  border-top: 1px solid rgba(0, 255, 136, 0.12);
}

.map-pin {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.4;
}

.map-link {
  flex-shrink: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--green);
  white-space: nowrap;
  transition: text-shadow 0.25s;
}

.map-link:hover {
  text-shadow: 0 0 12px rgba(0, 255, 136, 0.45);
}

/* 右下角悬浮操作区 */
.float-actions {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 180;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

/* 回到顶部 */
.back-to-top {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(0, 255, 136, 0.35);
  background: rgba(8, 16, 28, 0.92);
  color: var(--green);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  opacity: 0;
  visibility: hidden;
  display: none;
  padding: 0;
  transform: translateY(8px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s, background 0.2s, border-color 0.2s, color 0.2s;
}

.back-to-top.is-visible {
  display: flex;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: rgba(0, 255, 136, 0.14);
  border-color: var(--green);
  color: #fff;
}

/* 扫码了解 */
.float-qrcode-wrap {
  position: relative;
}

.float-qrcode-trigger {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(0, 255, 136, 0.35);
  background: rgba(8, 16, 28, 0.92);
  color: var(--green);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  transition: background 0.2s, border-color 0.2s, color 0.2s, box-shadow 0.2s;
}

.float-qrcode-trigger:hover,
.float-qrcode-wrap.is-open .float-qrcode-trigger {
  background: rgba(0, 255, 136, 0.14);
  border-color: var(--green);
  color: #fff;
  box-shadow: 0 0 24px rgba(0, 255, 136, 0.2);
}

.float-qrcode-popover {
  position: absolute;
  right: 0;
  bottom: calc(100% + 10px);
  width: 128px;
  height: 128px;
  padding: 0;
  border-radius: 10px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(0, 255, 136, 0.25);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px) scale(0.96);
  transform-origin: bottom right;
  transition: opacity 0.25s, visibility 0.25s, transform 0.25s;
  pointer-events: none;
}

.float-qrcode-popover::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 12px;
}

.float-qrcode-wrap:hover .float-qrcode-popover,
.float-qrcode-wrap.is-open .float-qrcode-popover {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.float-qrcode-popover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.contact-form {
  padding: 32px;
  border-radius: 18px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(0, 255, 136, 0.15);
  min-width: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.form-head {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.form-head h3 {
  font-size: 22px;
  margin-bottom: 6px;
}

.form-head p {
  font-size: 14px;
  color: var(--muted);
}

.contact-form .btn-block {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 8px;
}

.contact-form .btn-block svg {
  width: 18px;
  height: 18px;
  transition: transform 0.25s;
}

.contact-form .btn-block:hover svg {
  transform: translateX(4px);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-form label {
  display: block;
  margin-bottom: 16px;
}

.contact-form label span {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 6px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 13px 16px;
  border-radius: 10px;
  border: 1px solid rgba(0, 255, 136, 0.12);
  background: rgba(3, 8, 16, 0.8);
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.12);
}

.contact-form select option { background: #0a1420; }

/* Footer */
.footer {
  position: relative;
  z-index: 2;
  padding: 40px 0;
  border-top: 1px solid var(--border);
  background: rgba(2, 6, 8, 0.95);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-nav {
  display: flex;
  gap: 24px;
}

.footer-nav a {
  font-size: 14px;
  color: var(--muted);
  transition: color 0.2s;
}

.footer-nav a:hover { color: var(--green); }

.footer-copy {
  width: 100%;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Responsive */
@media (max-width: 1024px) {
  .hero-inner,
  .product-showcase,
  .about-split,
  .contact-panel { grid-template-columns: 1fr; }

  .hero-inner {
    grid-template-columns: 1fr;
    column-gap: 0;
    row-gap: 36px;
  }

  .hero-copy {
    text-align: center;
    align-items: center;
  }

  .chip { align-self: center; }

  .hero-actions { justify-content: center; }

  .hero-trust { justify-content: center; }

  .hero-visual { justify-content: center; }

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

  .section-sm { padding: 56px 0; }
  .product-grid { grid-template-columns: 1fr 1fr; }
  .hardware-grid { grid-template-columns: repeat(2, 1fr); }
  .product-matrix { padding: 32px 24px; }
  .product-card.wide { grid-column: span 2; }
  .news-row { grid-template-columns: 1fr; }
  .metrics-bar { grid-template-columns: repeat(3, 1fr); }
  .video-grid { grid-template-columns: 1fr; }
  .partners-list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav, .nav-cta { display: none; }

  .menu-toggle { display: flex; }

  .header.nav-open .nav {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(3, 8, 16, 0.98);
    padding: 20px;
    border-bottom: 1px solid var(--border);
  }

  .header.nav-open .nav-cta {
    display: inline-flex;
    margin-left: auto;
  }

  .product-grid,
  .hardware-grid,
  .team-grid,
  .team-stats,
  .metrics-bar { grid-template-columns: 1fr; }

  .product-card.wide { grid-column: auto; }
  .product-showcase,
  .product-showcase.reverse { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .contact-panel { padding: 20px; }
  .map-embed iframe { height: 200px; }
  .map-overlay { flex-direction: column; align-items: flex-start; }
  .float-actions { bottom: 16px; right: 16px; gap: 10px; }
  .float-qrcode-popover { width: 112px; height: 112px; }
  .back-to-top { width: 40px; height: 40px; }
  .product-matrix { padding: 24px 16px; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-nav { justify-content: center; flex-wrap: wrap; }
  .partners-list { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .partners-block { padding: 20px 16px; }
  .partner-logo { width: 48px; height: 48px; }
  .partner-name { font-size: 13px; }
}