/* ============================================================
   MOSAIC 魔卡 — Global Stylesheet
   UV Card Printing Beyond Limits
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --primary:   #7c3aed;
  --secondary: #ec4899;
  --accent:    #f97316;
  --teal:      #14b8a6;
  --dark:      #0f0f1a;
  --bg:        #f8f7ff;
  --card-bg:   #ffffff;
  --text:      #111827;
  --text-muted:#6b7280;
  --border:    rgba(124, 58, 237, 0.12);

  --gradient:       linear-gradient(135deg, #7c3aed 0%, #ec4899 50%, #f97316 100%);
  --gradient-rev:   linear-gradient(135deg, #f97316 0%, #ec4899 50%, #7c3aed 100%);
  --gradient-cool:  linear-gradient(135deg, #14b8a6 0%, #7c3aed 100%);
  --holo: linear-gradient(
    115deg,
    #ff0080 0%, #ff8c00 14%, #ffea00 28%,
    #00ff80 42%, #00c6ff 57%, #7c3aed 71%, #ff0080 100%
  );

  --radius:    14px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --radius-xl: 40px;

  --shadow:    0 4px 20px rgba(0,0,0,0.07);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
  --shadow-color: 0 20px 60px rgba(124, 58, 237, 0.25);

  --trans: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-head: 'Outfit', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── Typography ──────────────────────────────────────────────── */
h1,h2,h3,h4 { font-family: var(--font-head); line-height: 1.15; font-weight: 700; }
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
}
.zh { font-size: 0.85em; color: var(--text-muted); font-weight: 400; }

/* ── Layout ──────────────────────────────────────────────────── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.text-center { text-align: center; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.mt-48 { margin-top: 48px; }

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--trans);
}
.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 8px 24px rgba(124,58,237,0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(124,58,237,0.45);
}
.btn-outline {
  border: 2px solid var(--border);
  color: var(--text);
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(8px);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(124,58,237,0.05);
  transform: translateY(-2px);
}
.btn-white {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.18);
}

/* ── Navigation ──────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: var(--trans);
}
.nav.scrolled {
  background: rgba(248, 247, 255, 0.85);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 20px rgba(0,0,0,0.06);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  max-width: 1140px;
  margin: 0 auto;
}
.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.nav-logo-en {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.4rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.04em;
}
.nav-logo-zh {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 2px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--trans);
}
.nav-link:hover, .nav-link.active {
  color: var(--primary);
  background: rgba(124,58,237,0.07);
}
.nav-link.active { font-weight: 600; }
.nav-cta {
  padding: 9px 20px;
  border-radius: 50px;
  background: var(--gradient);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font-head);
  box-shadow: 0 4px 14px rgba(124,58,237,0.3);
  transition: var(--trans);
  margin-left: 8px;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(124,58,237,0.4); }

/* Hamburger (mobile) */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--trans);
}
.nav-mobile {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  background: rgba(248,247,255,0.97);
  backdrop-filter: blur(20px);
  padding: 80px 24px 32px;
  flex-direction: column;
  gap: 8px;
  z-index: 99;
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  padding: 14px 16px;
  font-size: 1.05rem;
  font-weight: 500;
  border-radius: 10px;
  color: var(--text);
  transition: var(--trans);
}
.nav-mobile a:hover { background: rgba(124,58,237,0.07); color: var(--primary); }

/* ── Hero ─────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(124,58,237,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(236,72,153,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(124,58,237,0.08);
  border: 1px solid rgba(124,58,237,0.2);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.06em;
  margin-bottom: 24px;
}
.hero-badge::before { content: '✦'; }
.hero h1 {
  font-size: clamp(2.8rem, 5.5vw, 5rem);
  line-height: 1.08;
  margin-bottom: 16px;
}
.hero-zh {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  font-weight: 400;
}
.hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 500px;
  margin-bottom: 40px;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 48px;
}
.hero-tag {
  padding: 6px 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.8rem;
  color: var(--text-muted);
  box-shadow: var(--shadow);
}

/* ── Holographic Card Visual ──────────────────────────────────── */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  padding: 40px;
}
.holo-card-wrap {
  position: relative;
  width: 240px;
  height: 336px;
  perspective: 800px;
}
.holo-card {
  width: 100%;
  height: 100%;
  border-radius: 18px;
  background: var(--holo);
  background-size: 400% 400%;
  animation: holo-shift 5s ease infinite, card-float 4s ease-in-out infinite;
  box-shadow:
    0 30px 80px rgba(124,58,237,0.35),
    0 0 0 1px rgba(255,255,255,0.3) inset,
    0 1px 0 rgba(255,255,255,0.6) inset;
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
}
.holo-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.3) 0%, transparent 50%, rgba(255,255,255,0.1) 100%);
  border-radius: inherit;
}
.holo-card::after {
  content: '';
  position: absolute;
  top: 12px; left: 12px; right: 12px;
  height: 2px;
  background: rgba(255,255,255,0.5);
  border-radius: 1px;
}
.holo-card-inner {
  position: absolute;
  inset: 16px;
  background: rgba(15, 15, 26, 0.6);
  border-radius: 10px;
  backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 1px solid rgba(255,255,255,0.15);
}
.holo-card-logo {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.4rem;
  color: #fff;
  letter-spacing: 0.12em;
}
.holo-card-divider {
  width: 40px;
  height: 2px;
  background: rgba(255,255,255,0.4);
  border-radius: 1px;
}
.holo-card-text {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.holo-orb {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--holo);
  background-size: 400% 400%;
  animation: holo-shift 3s ease infinite;
  box-shadow: 0 4px 20px rgba(124,58,237,0.4);
}
/* Floating cards behind */
.holo-card-bg {
  position: absolute;
  border-radius: 14px;
  background: var(--holo);
  background-size: 400% 400%;
  animation: holo-shift 6s ease infinite, card-float 5s ease-in-out infinite;
  opacity: 0.5;
  filter: blur(1px);
}
.holo-card-bg-1 {
  width: 200px;
  height: 280px;
  top: 0; right: -60px;
  animation-delay: -1s;
  transform: rotate(8deg) translateY(10px);
}
.holo-card-bg-2 {
  width: 200px;
  height: 280px;
  top: 20px; left: -50px;
  animation-delay: -2.5s;
  transform: rotate(-10deg) translateY(5px);
  opacity: 0.35;
}
/* Glowing dots */
.hero-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.hero-glow-1 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(124,58,237,0.2) 0%, transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}

@keyframes holo-shift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes card-float {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50%       { transform: translateY(-18px) rotate(-2deg); }
}

/* ── Section Headers ─────────────────────────────────────────── */
.section-header { margin-bottom: 56px; }
.section-header h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); margin-top: 10px; }
.section-header p  { font-size: 1.05rem; color: var(--text-muted); margin-top: 14px; max-width: 560px; }
.section-header.center { text-align: center; }
.section-header.center p { margin: 14px auto 0; }

/* ── Feature Cards ───────────────────────────────────────────── */
.feat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  transition: var(--trans);
  position: relative;
  overflow: hidden;
}
.feat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
  opacity: 0;
  transition: var(--trans);
}
.feat-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-color);
  border-color: rgba(124,58,237,0.25);
}
.feat-card:hover::before { opacity: 1; }
.feat-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}
.feat-icon-1 { background: rgba(124,58,237,0.1); }
.feat-icon-2 { background: rgba(236,72,153,0.1); }
.feat-icon-3 { background: rgba(249,115,22,0.1); }
.feat-icon-4 { background: rgba(20,184,166,0.1); }
.feat-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.feat-card .zh { display: block; margin-bottom: 12px; font-size: 0.8rem; }
.feat-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.65; }

/* ── Process Steps ───────────────────────────────────────────── */
.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  position: relative;
}
.process-steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: var(--gradient);
  opacity: 0.25;
  z-index: 0;
}
.step {
  text-align: center;
  position: relative;
  z-index: 1;
}
.step-num {
  width: 72px; height: 72px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.4rem;
  margin: 0 auto 16px;
  background: var(--card-bg);
  border: 2px solid var(--border);
  color: var(--primary);
  box-shadow: var(--shadow);
  transition: var(--trans);
}
.step:hover .step-num {
  background: var(--gradient);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--shadow-color);
  transform: scale(1.1);
}
.step h4 { font-size: 0.95rem; margin-bottom: 6px; }
.step p  { font-size: 0.8rem; color: var(--text-muted); line-height: 1.6; }

/* ── Product Preview Cards ───────────────────────────────────── */
.product-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--trans);
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.product-visual {
  height: 260px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.product-visual-equipment {
  background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 100%);
}
.product-visual-cards {
  background: linear-gradient(135deg, #0f0f1a 0%, #2d1b69 100%);
}
.product-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--holo);
  background-size: 400% 400%;
  animation: holo-shift 6s ease infinite;
  opacity: 0.15;
}
.product-visual-icon {
  font-size: 4rem;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 4px 16px rgba(124,58,237,0.4));
}
.product-info { padding: 32px; }
.product-info h3 { font-size: 1.35rem; margin-bottom: 6px; }
.product-info p  { font-size: 0.9rem; color: var(--text-muted); margin: 12px 0 24px; line-height: 1.7; }
.product-features { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.product-feature {
  padding: 5px 12px;
  background: rgba(124,58,237,0.07);
  border: 1px solid rgba(124,58,237,0.15);
  border-radius: 50px;
  font-size: 0.78rem;
  color: var(--primary);
  font-weight: 500;
}

/* ── CTA Banner ──────────────────────────────────────────────── */
.cta-banner {
  background: var(--gradient);
  border-radius: var(--radius-xl);
  padding: 72px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.cta-banner h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  color: #fff;
  margin-bottom: 12px;
  position: relative;
}
.cta-banner p {
  color: rgba(255,255,255,0.8);
  font-size: 1.05rem;
  margin-bottom: 36px;
  position: relative;
}
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; position: relative; }

/* ── Stats Bar ───────────────────────────────────────────────── */
.stats-bar {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 48px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  box-shadow: var(--shadow);
}
.stat { text-align: center; }
.stat-num {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }

/* ── Comparison Table ────────────────────────────────────────── */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.compare-table th, .compare-table td {
  padding: 18px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.compare-table thead tr { background: var(--gradient); }
.compare-table thead th { color: #fff; font-weight: 600; }
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table tbody tr:hover td { background: rgba(124,58,237,0.03); }
.compare-table td:first-child { color: var(--text-muted); font-weight: 500; }
.check { color: #22c55e; font-size: 1.1rem; }
.cross { color: #ef4444; font-size: 1.1rem; }
.compare-table td.mosaic-col { color: var(--primary); font-weight: 600; }

/* ── Contact ─────────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}
.contact-info h2 { font-size: 2.2rem; margin-top: 12px; margin-bottom: 16px; }
.contact-info p  { color: var(--text-muted); line-height: 1.75; margin-bottom: 32px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
  padding: 16px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--trans);
}
.contact-item:hover { border-color: rgba(124,58,237,0.3); transform: translateX(4px); }
.contact-item-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: rgba(124,58,237,0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-item-text strong { display: block; font-size: 0.85rem; color: var(--text); margin-bottom: 2px; }
.contact-item-text span  { font-size: 0.82rem; color: var(--text-muted); }

.contact-form-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font: inherit;
  font-size: 0.9rem;
  color: var(--text);
  background: var(--bg);
  transition: var(--trans);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(124,58,237,0.08);
}
.form-group textarea { height: 120px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-submit {
  width: 100%;
  padding: 15px;
  background: var(--gradient);
  color: #fff;
  border-radius: 50px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--trans);
  box-shadow: 0 8px 24px rgba(124,58,237,0.3);
}
.form-submit:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(124,58,237,0.4); }

/* ── Technology Page ─────────────────────────────────────────── */
.tech-process {
  counter-reset: step-counter;
}
.tech-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  padding: 40px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  transition: var(--trans);
  align-items: center;
}
.tech-step:hover {
  transform: translateX(6px);
  border-color: rgba(124,58,237,0.25);
  box-shadow: var(--shadow-color);
}
.tech-step-num {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.3rem;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-color);
}
.tech-step-icon { font-size: 1.5rem; margin-bottom: 8px; }
.tech-step h3 { font-size: 1.1rem; margin-bottom: 6px; }
.tech-step .zh { font-size: 0.8rem; display: block; margin-bottom: 10px; }
.tech-step p { font-size: 0.875rem; color: var(--text-muted); line-height: 1.7; }

/* ── Products Page ───────────────────────────────────────────── */
.product-detail {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: 40px;
  box-shadow: var(--shadow);
}
.product-detail-hero {
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.product-detail-body {
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.spec-list { display: flex; flex-direction: column; gap: 12px; }
.spec-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
}
.spec-item span:first-child { color: var(--text-muted); }
.spec-item span:last-child  { font-weight: 600; color: var(--text); }

/* Card type tabs */
.card-types { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; margin-top: 24px; }
.card-type {
  background: var(--card-bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  cursor: pointer;
  transition: var(--trans);
}
.card-type:hover, .card-type.active {
  border-color: var(--primary);
  background: rgba(124,58,237,0.04);
  transform: translateY(-4px);
  box-shadow: var(--shadow-color);
}
.card-type-icon { font-size: 2.2rem; margin-bottom: 12px; }
.card-type h4 { font-size: 1rem; margin-bottom: 4px; }
.card-type p  { font-size: 0.8rem; color: var(--text-muted); }

/* ── Page Hero (inner pages) ─────────────────────────────────── */
.page-hero {
  padding: 140px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(124,58,237,0.1) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero h1 { font-size: clamp(2.2rem, 4vw, 3.5rem); margin-top: 12px; }
.page-hero p   { font-size: 1.05rem; color: var(--text-muted); margin-top: 16px; max-width: 560px; margin-left: auto; margin-right: auto; }

/* ── Footer ──────────────────────────────────────────────────── */
footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 32px;
  margin-top: 96px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .nav-logo-en { color: #fff; -webkit-text-fill-color: unset; }
.footer-desc { font-size: 0.875rem; margin-top: 12px; line-height: 1.7; }
.footer-heading {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 16px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  transition: var(--trans);
}
.footer-links a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
}
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: rgba(255,255,255,0.35); transition: var(--trans); }
.footer-bottom-links a:hover { color: rgba(255,255,255,0.7); }

/* ── Animations ──────────────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: 1fr 1fr; }
  .process-steps::before { display: none; }
  .stats-bar { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .product-detail-body { grid-template-columns: 1fr; padding: 28px; }
  .tech-step { grid-template-columns: 1fr; }
  .hero-visual { margin-top: 48px; }
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .cta-banner { padding: 48px 28px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .card-types { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: 1fr 1fr; padding: 24px; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 2.2rem; }
  .grid-4 { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: 1fr; }
}