:root {
  --color-bg: #fafbff;
  --color-surface: #ffffff;
  --color-surface-alt: #f4f6fc;
  --color-border: rgba(99, 102, 241, 0.1);
  --color-text: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #94a3b8;
  --color-primary: #6366f1;
  --color-primary-dark: #4f46e5;
  --color-secondary: #06b6d4;
  --color-accent: #f97316;
  --color-pink: #ec4899;
  --gradient-brand: linear-gradient(135deg, #6366f1 0%, #8b5cf6 40%, #06b6d4 100%);
  --gradient-warm: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
  --gradient-cta: linear-gradient(135deg, #4f46e5 0%, #7c3aed 40%, #06b6d4 100%);
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --header-h: 68px;
  --max-w: 1120px;
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 2px 8px rgba(99,102,241,0.06), 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 20px rgba(99,102,241,0.08), 0 2px 6px rgba(0,0,0,0.03);
  --shadow-lg: 0 12px 40px rgba(99,102,241,0.1), 0 4px 12px rgba(0,0,0,0.04);
  --shadow-xl: 0 24px 60px rgba(99,102,241,0.14), 0 8px 20px rgba(0,0,0,0.05);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--color-primary-dark); }

.container {
  width: min(100% - 40px, var(--max-w));
  margin-inline: auto;
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(20px) saturate(1.6);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* Logo */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s;
}
.logo:hover { transform: scale(1.02); color: inherit; }

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 0;
  line-height: 1;
}

.logo-cn {
  font-size: 1.22rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--color-text);
}

.logo-en {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  margin-top: 2px;
}

.logo-en-zh { color: #ef4444; }
.logo-en-c { color: #16a34a; }
.logo-en-rest { color: var(--color-text-muted); }

/* Nav */
.nav {
  display: flex;
  align-items: center;
  gap: clamp(0.25rem, 1vw, 0.5rem);
}

.nav a {
  color: var(--color-text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 0.38rem 0.7rem;
  border-radius: 999px;
  transition: all 0.2s;
  white-space: nowrap;
}
.nav a:hover {
  color: var(--color-primary);
  background: rgba(99,102,241,0.06);
}

.nav-product {
  background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(6,182,212,0.08));
  color: var(--color-primary) !important;
  font-weight: 600 !important;
}
.nav-product:hover {
  background: linear-gradient(135deg, rgba(99,102,241,0.14), rgba(6,182,212,0.14)) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform 0.25s, opacity 0.25s;
  margin-left: auto;
  margin-right: auto;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    padding: 1rem;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.35s cubic-bezier(0.16,1,0.3,1), opacity 0.3s, visibility 0.3s;
  }
  .nav.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav a { padding: 0.8rem 1rem; border-radius: var(--radius); font-size: 0.95rem; }
}

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: min(84vh, 680px);
  display: flex;
  align-items: center;
  padding: 4rem 0 5rem;
  overflow: hidden;
  background: linear-gradient(165deg, #eef2ff 0%, #faf5ff 25%, var(--color-bg) 50%, #ecfeff 80%, #f0fdf4 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: orb-float 20s ease-in-out infinite;
}
.hero-orb--1 {
  width: 400px; height: 400px;
  top: -10%; right: 10%;
  background: rgba(99,102,241,0.15);
}
.hero-orb--2 {
  width: 300px; height: 300px;
  bottom: -5%; left: 5%;
  background: rgba(6,182,212,0.12);
  animation-delay: -7s;
}
.hero-orb--3 {
  width: 250px; height: 250px;
  top: 30%; left: 55%;
  background: rgba(236,72,153,0.08);
  animation-delay: -14s;
}

@keyframes orb-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 15px) scale(0.95); }
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,102,241,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, #000 20%, transparent 70%);
}

.hero-network {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
}
.hero-network--hidden { display: none; }

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 46rem;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(99,102,241,0.08);
  border: 1px solid rgba(99,102,241,0.15);
  border-radius: 999px;
  letter-spacing: 0.04em;
  animation: fade-down 0.6s cubic-bezier(0.16,1,0.3,1) both;
}

.hero-title {
  margin: 0 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  animation: fade-up 0.7s cubic-bezier(0.16,1,0.3,1) 0.1s both;
}

.hero-title-line {
  display: block;
  font-size: clamp(1.85rem, 5vw, 2.85rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.hero-title-line--accent {
  font-size: clamp(2.2rem, 6.2vw, 3.6rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: 0.03em;
  background: var(--gradient-brand);
  background-size: 200% 200%;
  animation: gradient-shift 8s ease-in-out infinite;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

@keyframes gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-lead {
  margin: 0 auto 2rem;
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: var(--color-text-secondary);
  line-height: 1.8;
  max-width: 34rem;
  animation: fade-up 0.7s cubic-bezier(0.16,1,0.3,1) 0.2s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  animation: fade-up 0.7s cubic-bezier(0.16,1,0.3,1) 0.3s both;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fade-down {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .hero-title-line--accent { animation: none; background-position: 50% 50%; }
  .hero-orb { animation: none; }
  .hero-badge, .hero-title, .hero-lead, .hero-actions { animation: none; }
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.6rem;
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16,1,0.3,1);
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--gradient-brand);
  background-size: 150% 150%;
  color: #fff;
  box-shadow: 0 4px 14px rgba(99,102,241,0.3);
}
.btn-primary:hover {
  color: #fff;
  box-shadow: 0 8px 24px rgba(99,102,241,0.35);
  transform: translateY(-2px);
}

.btn-outline {
  background: rgba(255,255,255,0.6);
  border: 1.5px solid var(--color-border);
  color: var(--color-text);
  backdrop-filter: blur(8px);
}
.btn-outline:hover {
  background: var(--color-surface);
  border-color: rgba(99,102,241,0.25);
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.btn-white {
  background: #fff;
  color: var(--color-primary);
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(0,0,0,0.1);
}
.btn-white:hover {
  color: var(--color-primary-dark);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  transform: translateY(-2px);
}

.btn-block { width: 100%; }

/* ========== Stats ========== */
.stats {
  position: relative;
  z-index: 10;
  margin-top: -2rem;
  padding: 0 0 1rem;
}
.stats-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 1.5rem 2.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: 0.5rem 1.5rem;
  flex: 1;
}
.stat-num {
  font-size: 1.35rem;
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 500;
  white-space: nowrap;
}
.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--color-border);
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .stats-inner {
    flex-wrap: wrap;
    gap: 0.25rem;
    padding: 1.25rem 1rem;
  }
  .stat-item { flex: 0 0 48%; padding: 0.5rem; }
  .stat-divider { display: none; }
}

/* ========== Sections Common ========== */
.section { padding: 5rem 0; }

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-tag {
  display: inline-block;
  padding: 0.3rem 0.85rem;
  margin-bottom: 1rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  background: rgba(99,102,241,0.07);
  border-radius: 999px;
  text-transform: uppercase;
}

.section-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-text);
}

.section-subtitle {
  margin: 0 auto;
  max-width: 560px;
  color: var(--color-text-secondary);
  font-size: 1rem;
}

/* ========== About ========== */
.about-section {
  background: var(--color-surface);
}

.about-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 300px);
  gap: 2.5rem;
  align-items: start;
  text-align: left;
}

.about-block + .about-block { margin-top: 1.75rem; }

.about-block h3 {
  margin: 0 0 0.6rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
}
.about-block p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
}

.about-aside {
  padding: 1.75rem;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: transform 0.3s, box-shadow 0.3s;
}
.about-aside:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.about-aside h3 {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
}

.about-steps {
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
}
.about-steps li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0;
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  border-bottom: 1px solid rgba(99,102,241,0.06);
}
.about-steps li:last-child { border-bottom: none; }
.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  font-size: 0.72rem;
  font-weight: 800;
  background: var(--gradient-brand);
  color: #fff;
  flex-shrink: 0;
}

.about-aside-note {
  margin: 0 0 1.15rem;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

@media (max-width: 900px) {
  .about-split { grid-template-columns: 1fr; }
}

/* ========== Values ========== */
.values-section { background: var(--color-bg); }

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.value-card {
  padding: 2rem 1.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xs);
  transition: all 0.35s cubic-bezier(0.16,1,0.3,1);
  text-align: center;
}
.value-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(99,102,241,0.2);
}

.value-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  margin-bottom: 1.25rem;
  color: #fff;
}
.value-icon--tech { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.value-icon--custom { background: linear-gradient(135deg, #06b6d4, #22d3ee); }
.value-icon--support { background: linear-gradient(135deg, #f97316, #fb923c); }

.value-card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--color-text);
}
.value-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

@media (max-width: 768px) {
  .values-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
}

/* ========== Product Showcase ========== */
.product-section { background: var(--color-surface); }

.product-card {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 3rem;
  align-items: center;
  padding: 3rem;
  background: linear-gradient(135deg, #faf5ff 0%, #eef2ff 30%, #ecfeff 70%, #f0fdf4 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.product-badge {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-secondary);
  background: rgba(6,182,212,0.1);
  border-radius: 999px;
  letter-spacing: 0.04em;
}

.product-title {
  margin: 0 0 0.85rem;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-text);
}

.product-desc {
  margin: 0 0 1.25rem;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.product-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.product-feature {
  padding: 0.3rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(99,102,241,0.08);
  border-radius: 999px;
}

.product-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-emoji-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  text-align: center;
}
.product-emoji-grid span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  font-size: 2rem;
  background: rgba(255,255,255,0.7);
  border: 1px solid rgba(99,102,241,0.08);
  border-radius: 18px;
  box-shadow: var(--shadow-xs);
  transition: transform 0.3s cubic-bezier(0.16,1,0.3,1);
}
.product-emoji-grid span:hover {
  transform: translateY(-4px) scale(1.1);
}

@media (max-width: 768px) {
  .product-card {
    grid-template-columns: 1fr;
    padding: 2rem 1.5rem;
    text-align: center;
  }
  .product-visual { order: -1; }
  .product-features { justify-content: center; }
  .product-emoji-grid span { width: 60px; height: 60px; font-size: 1.6rem; }
}

/* ========== Business ========== */
.business-section { background: var(--color-bg); }

.biz-featured {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-bottom: 3.5rem;
}

.biz-featured-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem 1.6rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
  transition: all 0.3s cubic-bezier(0.16,1,0.3,1);
}
.biz-featured-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(99,102,241,0.2);
}

.biz-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(99,102,241,0.07);
  color: var(--color-primary);
  flex-shrink: 0;
}

.biz-featured-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}
.biz-featured-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

@media (max-width: 640px) {
  .biz-featured { grid-template-columns: 1fr; }
}

.business-scope { margin-top: 0; }
.business-scope-title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.15rem, 2.5vw, 1.35rem);
  font-weight: 700;
  text-align: center;
  color: var(--color-text);
}
.business-scope-sub { margin-bottom: 2rem; }

.biz-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
@media (max-width: 768px) { .biz-grid { grid-template-columns: 1fr; } }

.biz-card {
  padding: 1.5rem 1.6rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
  transition: all 0.3s cubic-bezier(0.16,1,0.3,1);
}
.biz-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(99,102,241,0.18);
}
.biz-card h3 {
  margin: 0 0 0.85rem;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--color-primary);
}
.biz-card ul {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--color-text-secondary);
  font-size: 0.88rem;
}
.biz-card li + li { margin-top: 0.35rem; }

.scope-full {
  margin-top: 2.5rem;
  max-width: 900px;
  margin-inline: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  overflow: hidden;
}
.scope-full summary {
  padding: 1rem 1.25rem;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  list-style: none;
  color: var(--color-text-secondary);
  transition: all 0.2s;
}
.scope-full summary:hover { background: rgba(99,102,241,0.04); color: var(--color-primary); }
.scope-full summary::-webkit-details-marker { display: none; }
.scope-full summary::after { content: "+"; float: right; font-weight: 400; opacity: 0.5; font-size: 1.2rem; }
.scope-full[open] summary::after { content: "\2212"; }
.scope-full-body { padding: 0 1.25rem 1.25rem; border-top: 1px solid var(--color-border); }
.scope-full-body p { margin: 1rem 0 0; font-size: 0.82rem; line-height: 1.75; color: var(--color-text-muted); }

/* ========== CTA ========== */
.cta-section {
  padding: 4.5rem 0;
  background: var(--gradient-cta);
  text-align: center;
}
.cta-inner {
  max-width: 560px;
  margin: 0 auto;
}
.cta-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 800;
  color: #fff;
}
.cta-desc {
  margin: 0 0 1.75rem;
  font-size: 1.02rem;
  color: rgba(255,255,255,0.8);
}

/* ========== Contact ========== */
.contact-section { background: var(--color-bg); }

.contact-card {
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem 2.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}
.contact-list { margin: 0; }
.contact-list > div {
  padding: 1rem 0;
  border-bottom: 1px solid rgba(99,102,241,0.06);
}
.contact-list > div:first-child { padding-top: 0; }
.contact-list > div:last-child { border-bottom: none; padding-bottom: 0; }
.contact-list dt {
  margin: 0 0 0.3rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.contact-list dd {
  margin: 0;
  font-size: 0.98rem;
  color: var(--color-text);
}

/* ========== Footer ========== */
.site-footer {
  padding: 3rem 0 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 3rem;
  padding-bottom: 2.5rem;
}
.footer-brand {
  max-width: 280px;
}
.footer-logo-cn {
  display: block;
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--color-text);
  margin-bottom: 2px;
}
.footer-logo-en {
  display: block;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  margin-bottom: 0.75rem;
}
.footer-slogan {
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}
.footer-links {
  display: flex;
  gap: 3rem;
}
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.footer-col h4 {
  margin: 0 0 0.4rem;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.02em;
}
.footer-col a,
.footer-addr {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  transition: color 0.2s;
  text-decoration: none;
}
.footer-col a:hover { color: var(--color-primary); }

.footer-bottom {
  padding: 1.5rem 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}
.footer-bottom p {
  margin: 0;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}
.footer-bottom p + p {
  margin-top: 0.35rem;
}
.footer-bottom a {
  color: var(--color-text-muted);
}
.footer-bottom a:hover {
  color: var(--color-primary);
}

@media (max-width: 768px) {
  .footer-top { flex-direction: column; gap: 2rem; }
  .footer-links { gap: 2rem; flex-wrap: wrap; }
}

/* ========== Scroll Reveal ========== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16,1,0.3,1), transform 0.6s cubic-bezier(0.16,1,0.3,1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.value-card.reveal:nth-child(2) { transition-delay: 0.08s; }
.value-card.reveal:nth-child(3) { transition-delay: 0.16s; }
.biz-featured-card.reveal:nth-child(2) { transition-delay: 0.06s; }
.biz-featured-card.reveal:nth-child(3) { transition-delay: 0.12s; }
.biz-featured-card.reveal:nth-child(4) { transition-delay: 0.18s; }
.stat-item.reveal:nth-child(2) { transition-delay: 0.06s; }
.stat-item.reveal:nth-child(4) { transition-delay: 0.12s; }
.stat-item.reveal:nth-child(6) { transition-delay: 0.18s; }
.stat-item.reveal:nth-child(8) { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}