/* ===========================
   同道云计算 — 高级质感版 v4
   视觉升级 + 高级交互
   =========================== */

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-primary: #FF6210;
  --color-primary-hover: #F15808;
  --color-primary-glow: rgba(255, 98, 16, 0.35);
  --color-primary-subtle: rgba(255, 98, 16, 0.06);
  --color-dark: #09090B;
  --color-dark-warm: #0E0C08;
  --color-dark-cool: #0A0C12;
  --color-dark-card: #18181B;
  --color-dark-text: #27272A;
  --color-bg-white: #FFFFFF;
  --color-bg-warm: #FFFBF7;
  --color-bg-cool: #F5F7FA;
  --color-bg-cream: #FFF7F0;
  --color-muted: #71717A;
  --color-border: rgba(0, 0, 0, 0.06);
  --color-border-dark: rgba(255, 255, 255, 0.06);
  --font-body: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  --font-heading: 'Inter', 'Noto Sans SC', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --container-width: 1200px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scroll-padding-top: 72px;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-dark-text);
  background: var(--color-bg-warm);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a:hover { color: var(--color-primary-hover); }

img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Scroll Progress Bar ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--color-primary), #E8450E);
  z-index: 10000;
  will-change: width;
}

/* 进度条末端发光点 */
.scroll-progress::after {
  content: '';
  position: absolute;
  right: -1px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #E8450E;
  transform: translateY(-50%);
  box-shadow: 0 0 8px 2px rgba(232, 69, 14, 0.6), 0 0 20px 4px rgba(255, 98, 16, 0.3);
}

/* ---------- Grain Overlay (轻量) ---------- */
.grain-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.015;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px;
  will-change: auto;
  contain: strict;
}

/* ---------- Dot Grid Background ---------- */
.section-dot-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

/* ---------- Cursor Glow (仅 PC) ---------- */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 98, 16, 0.12) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  left: 0;
  top: 0;
  transition: opacity 0.4s;
  will-change: transform;
}

/* ---------- Scroll Animations ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ---------- Glass Card ---------- */
.glass-card {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.02);
  position: relative;
  overflow: hidden;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), border-color 0.3s;
}

.section-dark .glass-card {
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.card-shine {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    transparent 30%,
    rgba(255, 255, 255, 0.08) 42%,
    rgba(255, 255, 255, 0.18) 45%,
    rgba(255, 255, 255, 0.08) 48%,
    transparent 60%
  );
  background-size: 250% 100%;
  background-position: 200% center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}

.glass-card:hover .card-shine {
  opacity: 1;
  animation: cardShineSweep 0.8s var(--ease-out) forwards;
}

@keyframes cardShineSweep {
  from { background-position: 200% center; }
  to { background-position: -200% center; }
}

/* 卡片悬停发光边框 */
.glass-card:hover {
  border-color: rgba(255, 98, 16, 0.15);
  box-shadow: 0 0 0 1px rgba(255, 98, 16, 0.06),
    0 4px 12px rgba(0, 0, 0, 0.04),
    0 20px 48px rgba(0, 0, 0, 0.06),
    inset 0 0 80px -40px rgba(255, 98, 16, 0.04);
}

/* ---------- Button ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  border: none;
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
  letter-spacing: -0.01em;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  padding: 14px 32px;
  border-radius: 60px;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 10px 24px;
  font-size: 13px;
}

.btn-arrow {
  transition: transform 0.25s var(--ease-out);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  line-height: 1;
}

.btn:hover .btn-arrow { transform: translateX(3px); }

.btn-glow {
  box-shadow: 0 4px 20px var(--color-primary-glow);
  animation: btnBreathe 3s ease-in-out infinite;
}

.btn-glow:hover {
  box-shadow: 0 8px 32px var(--color-primary-glow);
  animation: none;
}

@keyframes btnBreathe {
  0%, 100% { box-shadow: 0 4px 16px rgba(255, 98, 16, 0.25); }
  50% { box-shadow: 0 4px 28px rgba(255, 98, 16, 0.45), 0 0 0 1px rgba(255, 98, 16, 0.08); }
}

.btn-ghost {
  background: transparent;
  color: var(--color-dark-text);
  padding: 14px 32px;
  border-radius: 60px;
  border: 1px solid rgba(0, 0, 0, 0.12);
}

.btn-ghost:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(250, 250, 250, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}

.site-header.scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(250, 250, 250, 0.95);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.site-branding .logo-text {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: contain;
}

.site-branding .logo-text:hover { color: var(--color-primary); }

.nav-list {
  display: flex;
  gap: 6px;
}

.nav-list a {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-muted);
  padding: 6px 14px;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
  letter-spacing: -0.01em;
}

.nav-list a:hover,
.nav-list a.nav-active {
  color: var(--color-dark);
  background: rgba(0, 0, 0, 0.04);
}

.header-cta {
  padding: 9px 22px;
  font-size: 13px;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: transform 0.3s var(--ease-out), opacity 0.3s;
}

/* ---------- Hero ---------- */
.hero {
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-bg-warm);
}

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

.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.02) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at 30% 50%, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 30% 50%, black 0%, transparent 70%);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  will-change: transform;
  animation: orbFloat 25s infinite ease-in-out;
}

.hero-orb-1 {
  width: 500px;
  height: 500px;
  background: rgba(255, 98, 16, 0.07);
  top: -15%;
  right: -10%;
}

.hero-orb-2 {
  width: 350px;
  height: 350px;
  background: rgba(59, 130, 246, 0.04);
  bottom: -15%;
  left: -10%;
  animation-delay: -8s;
}

.hero-orb-3 {
  width: 250px;
  height: 250px;
  background: rgba(255, 98, 16, 0.03);
  top: 40%;
  left: 50%;
  animation-delay: -16s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(20px, -30px); }
  66% { transform: translate(-15px, 15px); }
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 680px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 98, 16, 0.05);
  border: 1px solid rgba(255, 98, 16, 0.15);
  border-radius: 60px;
  padding: 7px 18px;
  font-size: 12px;
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 32px;
  animation: badgeGlow 4s ease-in-out infinite;
}

@keyframes badgeGlow {
  0%, 100% { box-shadow: 0 0 12px rgba(255, 98, 16, 0.06); }
  50% { box-shadow: 0 0 24px rgba(255, 98, 16, 0.15), 0 0 0 1px rgba(255, 98, 16, 0.08); }
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: pulse 2.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 54px;
  font-weight: 800;
  color: var(--color-dark);
  line-height: 1.12;
  margin-bottom: 24px;
  letter-spacing: -0.035em;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.text-gradient {
  background: linear-gradient(
    90deg,
    var(--color-primary) 0%,
    #E8450E 40%,
    #FFB088 50%,
    #E8450E 60%,
    var(--color-primary) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: textShimmer 4s ease-in-out infinite;
}

@keyframes textShimmer {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}

.hero-desc {
  max-width: 520px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-muted);
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

/* Hero Stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 36px;
}

.stat { display: flex; flex-direction: column; }

.stat-num {
  font-family: var(--font-heading);
  font-size: 42px;
  font-weight: 800;
  background: linear-gradient(
    90deg,
    var(--color-dark) 20%,
    var(--color-primary) 45%,
    #FFB088 50%,
    var(--color-primary) 55%,
    var(--color-dark) 80%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  letter-spacing: -0.03em;
  animation: statShimmer 5s ease-in-out infinite;
}

@keyframes statShimmer {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}

.stat-suffix {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-muted);
}

.stat-label {
  font-size: 12px;
  color: var(--color-muted);
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: rgba(0, 0, 0, 0.08);
}


/* ---------- Section Divider ---------- */
.section + .section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.08), transparent);
}

.section-dark + .section::before,
.section + .section-dark::before,
.section-dark + .section-dark::before,
.section-ethics-banner + .section::before {
  display: none;
}

/* ---------- Section Base ---------- */
.section {
  padding: 88px 0;
  position: relative;
  contain: layout style;
}

.section-dark {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.7);
}

.section-dark .section-title { color: #fff; }

.section-header { margin-bottom: 40px; }
.section-header.center { text-align: center; }

.section-header.center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 14px;
}

.section-tag.light { color: rgba(255, 255, 255, 0.55); }

.tag-line {
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--color-primary);
  opacity: 0.5;
}

.tag-line.light { background: rgba(255, 255, 255, 0.45); }

.section-title {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 18px;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.section-header.center .section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), #E8450E, var(--color-primary));
  background-size: 200% 100%;
  border-radius: 2px;
  margin: 14px auto 0;
  animation: lineShimmer 3s ease-in-out infinite;
}

@keyframes lineShimmer {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}

.section-title.light { color: #fff; }

.section-desc {
  max-width: 640px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-muted);
}

.section-desc.light { color: rgba(255, 255, 255, 0.65); }

.section-dark .section-desc { color: rgba(255, 255, 255, 0.6); }

.section-desc.center {
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Vision Grid ---------- */
.vision-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.vision-card {
  border-radius: var(--radius-xl);
  padding: 36px 28px 32px;
  text-align: center;
  border-top: 2px solid transparent;
}

.vision-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.06), 0 2px 8px rgba(0, 0, 0, 0.03);
  border-top-color: var(--color-primary);
}

.vision-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary), #E8450E);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  color: #fff;
  animation: iconGlow 4s ease-in-out infinite;
  transition: box-shadow 0.3s;
}

.vision-card:hover .vision-icon-wrap {
  box-shadow: 0 8px 24px rgba(255, 98, 16, 0.4);
  animation: none;
}

@keyframes iconGlow {
  0%, 100% { box-shadow: 0 6px 16px rgba(255, 98, 16, 0.2); }
  50% { box-shadow: 0 6px 24px rgba(255, 98, 16, 0.38), 0 0 0 2px rgba(255, 98, 16, 0.06); }
}

.vision-card h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.vision-card p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
}

/* ---------- Team & Leadership Sections ---------- */
.section-team {
  background: var(--color-bg-cream);
}

.section-leadership {
  background: var(--color-bg-white);
}

/* ---------- Two Column ---------- */
.two-col {
  display: flex;
  align-items: center;
  gap: 80px;
}

.two-col.reverse { flex-direction: row-reverse; }
.col-text { flex: 1; }

.col-text p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-muted);
  margin-top: 12px;
}

.section-dark .col-text p { color: rgba(255, 255, 255, 0.65); }
.col-visual { flex: 1; }

.team-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  background: rgba(255, 98, 16, 0.06);
  color: var(--color-primary);
  border: 1px solid rgba(255, 98, 16, 0.1);
}

.section-dark .tag {
  background: rgba(255, 98, 16, 0.1);
  border-color: rgba(255, 98, 16, 0.18);
}

/* ---------- University Logo Grid ---------- */
.university-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.uni-logo {
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-md);
  padding: 22px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.35s var(--ease-out);
}

.uni-logo img {
  height: 42px;
  width: auto;
  object-fit: contain;
  filter: grayscale(1) opacity(0.5);
  transition: filter 0.35s var(--ease-out);
}

.uni-logo:hover {
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.uni-logo:hover img {
  filter: grayscale(0) opacity(1);
}

/* ---------- Leadership Highlights ---------- */
.leadership-highlights {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.highlight-item {
  background: linear-gradient(135deg, rgba(255, 247, 242, 0.82), rgba(255, 241, 232, 0.82));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 98, 16, 0.08);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  display: flex;
  align-items: center;
  gap: 18px;
  transition: all 0.35s var(--ease-out);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.highlight-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 98, 16, 0.08);
  border-color: rgba(255, 98, 16, 0.15);
}

.highlight-num {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 800;
  color: var(--color-primary);
  white-space: nowrap;
  flex-shrink: 0;
}

.highlight-text {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.5;
}

.placeholder-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: 0.15em;
  color: rgba(0, 0, 0, 0.06);
}

.placeholder-img.morph-border {
  background: linear-gradient(135deg, #F5F5F4, #E7E5E4);
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.section-dark .placeholder-img.morph-border {
  background: linear-gradient(135deg, var(--color-dark-card), #1F1F22);
  border-color: var(--color-border-dark);
  color: rgba(255, 255, 255, 0.05);
}

/* ---------- Ethics Banner ---------- */
.section-ethics-banner {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
}

.ethics-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-dark) 0%, #110A06 50%, #09090B 100%);
}

.ethics-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
}

.ethics-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(255, 98, 16, 0.1) 0%, transparent 60%),
    linear-gradient(105deg, transparent 40%, rgba(255, 98, 16, 0.04) 45%, rgba(255, 255, 255, 0.02) 50%, transparent 55%);
  background-size: 100% 100%, 300% 100%;
  animation: ethicsSweep 8s ease-in-out infinite;
}

@keyframes ethicsSweep {
  0%, 100% { background-position: 0% 0%, 200% center; }
  50% { background-position: 0% 0%, -100% center; }
}

.ethics-content {
  position: relative;
  z-index: 1;
  max-width: 660px;
}

.ethics-content .section-desc {
  margin-bottom: 36px;
}

/* ---------- Product Matrix ---------- */
.section-products {
  background: var(--color-bg-cream);
}

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

/* --- 卡片容器 --- */
.product-block {
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  transition: transform 0.45s var(--ease-out), box-shadow 0.45s var(--ease-out);
}

.product-block--orange {
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(232, 69, 14, 0.08);
  box-shadow: 0 2px 8px rgba(232, 69, 14, 0.05), inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.product-block--blue {
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(108, 79, 232, 0.08);
  box-shadow: 0 2px 8px rgba(108, 79, 232, 0.05), inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.product-block--dark {
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04), inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.product-block:hover {
  transform: translateY(-6px);
}

.product-block--orange:hover {
  box-shadow: 0 20px 48px rgba(232, 69, 14, 0.12), 0 4px 12px rgba(0, 0, 0, 0.03);
  border-color: rgba(232, 69, 14, 0.15);
}

.product-block--blue:hover {
  box-shadow: 0 20px 48px rgba(108, 79, 232, 0.12), 0 4px 12px rgba(0, 0, 0, 0.03);
  border-color: rgba(108, 79, 232, 0.15);
}

.product-block--dark:hover {
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.10), 0 4px 12px rgba(0, 0, 0, 0.04);
  border-color: rgba(0, 0, 0, 0.1);
}

/* --- 核心业务标识（内联在 header 行） --- */
.product-featured-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: #fff;
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 4px 12px;
  border-radius: 60px;
  margin-left: auto;
  flex-shrink: 0;
  white-space: nowrap;
  line-height: 1;
}

/* --- Header --- */
.product-block-header {
  padding: 28px 24px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
  overflow: hidden;
}

/* 噪点纹理 */
.product-block-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' 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");
  background-size: 128px;
  opacity: 0.035;
  pointer-events: none;
}

/* 顶部高光条 */
.product-block-header::after {
  content: '';
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  pointer-events: none;
}

/* --- 三色渐变 --- */
.product-block-header.orange {
  background: linear-gradient(160deg, #FF7A3D 0%, #F25D1A 40%, #CC4409 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), inset 0 -1px 0 rgba(0, 0, 0, 0.08);
}

.product-block-header.blue {
  background: linear-gradient(160deg, #8B6FFD 0%, #6C4FE8 40%, #5038C9 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), inset 0 -1px 0 rgba(0, 0, 0, 0.08);
}

.product-block-header.dark {
  background: linear-gradient(160deg, #44403C 0%, #352F2B 40%, #231F1C 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), inset 0 -1px 0 rgba(0, 0, 0, 0.15);
}

/* 流光层 */
.product-block-header .shimmer {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 30%, rgba(255, 255, 255, 0.08) 45%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.08) 55%, transparent 70%);
  background-size: 250% 100%;
  animation: shimmer 6s ease-in-out infinite;
  pointer-events: none;
}

.product-block:nth-child(2) .shimmer { animation-delay: -2s; }
.product-block:nth-child(3) .shimmer { animation-delay: -4s; }

@keyframes shimmer {
  0%   { background-position: 200% center; }
  100% { background-position: -200% center; }
}

.product-block-icon {
  width: 42px;
  height: 42px;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.product-block-title { flex: 1; min-width: 0; }

.product-block-header h3 {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 2px;
  letter-spacing: -0.02em;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.product-block-sub {
  font-size: 12px;
  opacity: 0.72;
}

/* --- 卡片体 --- */
.product-body {
  position: relative;
}

/* 左侧彩色边线 */
.product-block--orange .product-body {
  border-left: 2px solid rgba(232, 69, 14, 0.12);
  margin-left: 22px;
  background: linear-gradient(135deg, rgba(255, 98, 16, 0.015), transparent 60%);
}

.product-block--blue .product-body {
  border-left: 2px solid rgba(108, 79, 232, 0.12);
  margin-left: 22px;
  background: linear-gradient(135deg, rgba(108, 79, 232, 0.015), transparent 60%);
}

.product-block--dark .product-body {
  border-left: 2px solid rgba(0, 0, 0, 0.06);
  margin-left: 22px;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.01), transparent 60%);
}

.product-list {
  padding: 12px 20px 18px 18px;
}

.product-list li {
  padding: 10px 0;
  font-size: 13px;
  color: var(--color-muted);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all 0.25s var(--ease-out);
}

.product-list li:last-child { border-bottom: none; }

.product-list li:hover {
  color: var(--color-dark);
  padding-left: 4px;
}

/* 箭头指示器 */
.list-arrow {
  font-size: 16px;
  font-weight: 300;
  line-height: 1;
  flex-shrink: 0;
  width: 14px;
  text-align: center;
  transition: transform 0.25s var(--ease-out), color 0.25s;
}

.product-block--orange .list-arrow { color: rgba(232, 69, 14, 0.35); }
.product-block--blue .list-arrow { color: rgba(108, 79, 232, 0.35); }
.product-block--dark .list-arrow { color: rgba(0, 0, 0, 0.2); }

.product-list li:hover .list-arrow {
  transform: translateX(3px);
}

.product-block--orange .product-list li:hover .list-arrow { color: #F25D1A; }
.product-block--blue .product-list li:hover .list-arrow { color: #6C4FE8; }
.product-block--dark .product-list li:hover .list-arrow { color: var(--color-dark); }

/* ---------- Showcase Section ---------- */
.section-showcase {
  background: var(--color-bg-cool);
}

/* ---------- Showcase Grid ---------- */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.showcase-card {
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.showcase-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 98, 16, 0.12);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
}

.showcase-card:hover .showcase-num {
  box-shadow: 0 4px 16px rgba(255, 98, 16, 0.35);
}

.showcase-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary), #E8450E);
  display: flex;
  align-items: center;
  box-shadow: 0 3px 10px rgba(255, 98, 16, 0.2);
  transition: box-shadow 0.3s;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  flex-shrink: 0;
}

.showcase-card-text {
  flex: 1;
  min-width: 0;
}

.showcase-card h3 {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.showcase-card p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-muted);
}

/* ---------- Client Marquee ---------- */
.section-clients {
  overflow: hidden;
  background: var(--color-bg-white);
}

.client-marquee {
  margin-top: 48px;
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  contain: layout paint;
}

/* 初始隐藏动画，等 JS 计算完宽度后启动 */
.marquee-track {
  display: flex;
  gap: 16px;
  width: max-content;
}

.marquee-track.marquee-ready {
  animation: marqueeScroll 30s linear infinite;
  will-change: transform;
}

.client-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  height: 52px;
  border-radius: 60px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-dark-text);
  white-space: nowrap;
  flex-shrink: 0;
  letter-spacing: -0.01em;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.client-pill img {
  height: 24px;
  min-width: 48px;
  width: auto;
  object-fit: contain;
  filter: grayscale(1) opacity(0.55);
  transition: filter 0.35s;
}

.client-pill:hover img {
  filter: grayscale(0) opacity(1);
}


@keyframes marqueeScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(calc(var(--marquee-width, 50%) * -1)); }
}

/* ---------- Roadmap ---------- */
.roadmap {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  margin-top: 56px;
  position: relative;
}

.roadmap-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  padding: 0 10px;
  transition: transform 0.35s var(--ease-out);
}

.roadmap-col:hover {
  transform: translateY(-4px);
}

/* 渐变背景列 */
.roadmap-bg {
  position: absolute;
  inset: -20px -1px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 80%);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

/* 气泡卡片 */
.roadmap-bubble {
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 16px 14px;
  margin-bottom: 20px;
  min-height: 80px;
  display: flex;
  align-items: center;
  transition: all 0.35s var(--ease-out);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.roadmap-col:hover .roadmap-bubble {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
}

.roadmap-bubble p {
  font-size: 12px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
  transition: color 0.3s;
}

.roadmap-col:hover .roadmap-bubble p {
  color: rgba(255, 255, 255, 0.88);
}

/* 气泡箭头 */
.bubble-arrow {
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background: rgba(255, 255, 255, 0.05);
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.roadmap-col:hover .bubble-arrow {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.12);
}

/* 阶段标题 */
.roadmap-stage {
  margin-bottom: 6px;
}

.roadmap-phase {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.5);
  display: block;
  margin-bottom: 4px;
}

.roadmap-stage h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

/* 标语 */
.roadmap-tagline {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 16px;
}

/* 图标 */
.roadmap-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.65);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
  margin-bottom: 16px;
  transition: all 0.35s var(--ease-out);
}

.roadmap-col:hover .roadmap-icon {
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

/* 年份 */
.roadmap-year {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.65);
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}

/* 底部轨道 */
.roadmap-track {
  position: relative;
  width: 100%;
  height: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.roadmap-track::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-50%);
}

/* 第一列左端和最后一列右端渐隐 */
.roadmap-col:first-child .roadmap-track::before {
  left: 50%;
}
.roadmap-col:last-child .roadmap-track::before {
  right: 50%;
}

/* 节点 */
.roadmap-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  position: relative;
  z-index: 1;
  transition: all 0.35s var(--ease-out);
}

.roadmap-col:hover .roadmap-dot {
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.2);
}

/* ---- 当前阶段 (P4) ---- */
.roadmap-current .roadmap-phase {
  color: var(--color-primary);
}

.roadmap-current .roadmap-stage h3 {
  color: #fff;
}

.roadmap-current .roadmap-icon {
  background: rgba(255, 98, 16, 0.1);
  border-color: rgba(255, 98, 16, 0.2);
  color: var(--color-primary);
}

.roadmap-current .roadmap-bubble {
  border-color: rgba(255, 98, 16, 0.15);
  background: rgba(255, 98, 16, 0.04);
}

.roadmap-current .bubble-arrow {
  border-color: rgba(255, 98, 16, 0.15);
  background: rgba(255, 98, 16, 0.04);
}

.roadmap-current .roadmap-year {
  color: var(--color-primary);
}

/* 当前节点：发光圆环 */
.roadmap-dot-current {
  width: 10px;
  height: 10px;
  background: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(255, 98, 16, 0.12), 0 0 20px rgba(255, 98, 16, 0.25);
}

.dot-ring {
  position: absolute;
  inset: -7px;
  border-radius: 50%;
  border: 1px solid rgba(255, 98, 16, 0.25);
  animation: dotRing 3s ease-in-out infinite;
}

@keyframes dotRing {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.8); opacity: 0; }
}

/* ---- 未来阶段 (P5) ---- */
.roadmap-future .roadmap-phase {
  color: var(--color-primary);
  font-weight: 700;
}

.roadmap-future .roadmap-stage h3 {
  background: linear-gradient(135deg, var(--color-primary), #E8450E);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.roadmap-future .roadmap-tagline {
  color: rgba(255, 98, 16, 0.6);
}

.roadmap-future .roadmap-icon {
  background: linear-gradient(135deg, rgba(255, 98, 16, 0.12), rgba(232, 69, 14, 0.08));
  border-color: rgba(255, 98, 16, 0.2);
  color: var(--color-primary);
}

.roadmap-future .roadmap-bubble {
  border-color: rgba(255, 98, 16, 0.12);
  background: rgba(255, 98, 16, 0.03);
}

.roadmap-future .bubble-arrow {
  border-color: rgba(255, 98, 16, 0.12);
  background: rgba(255, 98, 16, 0.03);
}

.roadmap-future .roadmap-year {
  color: var(--color-primary);
  font-weight: 600;
}

.roadmap-future .roadmap-dot {
  background: var(--color-primary);
  opacity: 0.5;
}

/* ---------- Location Grid ---------- */
.section-locations {
  background: var(--color-bg-cream);
}

.location-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 16px;
  align-items: stretch;
}

.location-card {
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03), inset 0 1px 0 rgba(255, 255, 255, 0.7);
  transition: transform 0.35s var(--ease-out), border-color 0.35s, box-shadow 0.35s;
}

.location-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 98, 16, 0.12);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.06), 0 2px 6px rgba(0, 0, 0, 0.03);
}

.location-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--color-primary-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.location-card h3 {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.location-card p {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* ---------- Location Map ---------- */
.location-card--map {
  padding: 20px;
}

.location-map-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.location-card--map .location-icon {
  margin-bottom: 0;
}

.location-card--map h3 {
  margin-bottom: 0;
}

.location-map-wrap {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(0, 0, 0, 0.01);
}

.location-map {
  width: 100%;
  height: auto;
  display: block;
}

.map-label {
  font-size: 9px;
  font-weight: 500;
  font-family: var(--font-body);
  fill: var(--color-muted);
}

/* ---------- Contact CTA ---------- */
.section-contact {
  background: var(--color-bg-white);
  text-align: center;
  padding: 88px 0;
  position: relative;
  overflow: hidden;
}

.contact-glow {
  position: absolute;
  width: 800px;
  height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 98, 16, 0.04) 0%, rgba(139, 92, 246, 0.02) 40%, transparent 65%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.section-contact .section-title {
  font-size: 32px;
  color: var(--color-dark);
}

.section-contact .section-desc { color: var(--color-muted); }

.contact-cards {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-top: 48px;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 40px 48px;
  border-radius: var(--radius-xl);
  transition: transform 0.35s var(--ease-out), border-color 0.35s, box-shadow 0.35s;
  min-width: 280px;
  text-align: center;
  background: linear-gradient(135deg, rgba(255, 247, 242, 0.85), rgba(255, 241, 232, 0.85));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 98, 16, 0.08);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.contact-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 98, 16, 0.18);
  box-shadow: 0 20px 48px rgba(255, 98, 16, 0.1), 0 4px 12px rgba(0, 0, 0, 0.04);
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--color-primary), #E8450E);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  margin-bottom: 4px;
  animation: contactIconGlow 4s ease-in-out infinite;
}

@keyframes contactIconGlow {
  0%, 100% { box-shadow: 0 4px 12px rgba(255, 98, 16, 0.2); }
  50% { box-shadow: 0 6px 20px rgba(255, 98, 16, 0.4), 0 0 0 2px rgba(255, 98, 16, 0.06); }
}

.contact-label {
  font-size: 13px;
  color: var(--color-muted);
}

.contact-email {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.55);
  font-size: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.site-footer .footer-logo:hover { color: var(--color-primary); }

.footer-inner {
  display: flex;
  gap: 60px;
  padding: 56px 24px 40px;
}

.footer-brand { flex: 1; }

.footer-logo {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.02em;
}

.footer-logo-icon {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  object-fit: contain;
}

.footer-slogan {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 8px;
}

.footer-col h4 {
  color: rgba(255, 255, 255, 0.75);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-col ul li { padding: 3px 0; }

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  transition: color 0.2s;
}

.footer-col ul li a:hover { color: var(--color-primary); }

.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 2px;
}

/* ---------- 按钮涟漪效果 ---------- */
.btn-primary,
.btn-ghost {
  position: relative;
  overflow: hidden;
}

.btn-ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  transform: scale(0);
  animation: rippleOut 0.6s ease-out forwards;
  pointer-events: none;
}

@keyframes rippleOut {
  to { transform: scale(1); opacity: 0; }
}

/* ---------- 导航滑动指示器 ---------- */
.nav-list {
  position: relative;
}

.nav-indicator-wrap {
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  pointer-events: none;
}

.nav-indicator {
  position: absolute;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), #E8450E);
  border-radius: 2px;
  transition: left 0.35s var(--ease-out), width 0.35s var(--ease-out), opacity 0.3s;
  opacity: 0;
}

.nav-list a.nav-active {
  color: var(--color-dark);
}

/* ---------- Hero 逐字动画 ---------- */
.hero-title.title-animate .char {
  display: inline-block;
  opacity: 0;
  filter: blur(6px);
  transform: translateY(8px);
  animation: charReveal 0.5s var(--ease-out) forwards;
}

/* .text-gradient 作为整体动画时，保留其渐变样式 */
.hero-title.title-animate .text-gradient.char {
  background: linear-gradient(135deg, var(--color-primary) 0%, #E8450E 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

@keyframes charReveal {
  to {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0);
  }
}

/* Hero title 整体不再使用 fade-up（逐字动画替代） */
.hero-title.title-animate.fade-up {
  opacity: 1;
  transform: none;
}

/* ---------- 返回顶部按钮 ---------- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--color-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.4s var(--ease-out), transform 0.4s var(--ease-out), background 0.25s, border-color 0.25s, box-shadow 0.25s;
  pointer-events: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: 0 8px 24px var(--color-primary-glow);
  transform: translateY(-2px);
}

/* ---------- 移动端菜单 stagger 动画 ---------- */
.nav-list li {
  transition: opacity 0.3s, transform 0.3s;
}

@media (max-width: 921px) {
  .main-nav.open .nav-list li {
    opacity: 0;
    transform: translateY(-8px);
  }
  .main-nav.open .nav-list li.nav-stagger-in {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 触摸态反馈 ---------- */
.touch-active {
  transform: scale(0.97) !important;
  opacity: 0.85;
  transition: transform 0.15s, opacity 0.15s !important;
}

/* ---------- 卡片 3D 倾斜过渡恢复 ---------- */
.glass-card {
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), border-color 0.3s;
  will-change: transform;
}

/* ==============================================
   Responsive: Tablet (<=921px)
   ============================================== */
@media (max-width: 921px) {
  .container { padding: 0 20px; }
  .header-cta { display: none; }
  .mobile-toggle { display: flex; }

  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    width: 100%;
    background: rgba(250, 250, 250, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  }

  .main-nav.open { display: block; }

  .nav-list {
    flex-direction: column;
    padding: 12px 20px 20px;
    gap: 0;
  }

  .nav-list li a {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    font-size: 15px;
    color: var(--color-dark-text);
    border-radius: 0;
    background: none;
  }

  .nav-list li:last-child a { border-bottom: none; }

  .hero {
    min-height: auto;
    padding: 110px 0 60px;
  }

  .hero-title { font-size: 38px; }

  .section { padding: 64px 0; }
  .section-title { font-size: 28px; }
  .section-header { margin-bottom: 32px; }

  .vision-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .showcase-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .product-matrix {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .two-col,
  .two-col.reverse {
    flex-direction: column;
    gap: 36px;
  }

  .location-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  .location-card--map {
    grid-column: span 3;
    padding: 18px;
  }

  .location-map-header {
    gap: 10px;
    margin-bottom: 10px;
  }

  .roadmap {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 28px;
    padding-left: 36px;
    position: relative;
  }

  .roadmap::before {
    content: '';
    position: absolute;
    top: 8px;
    bottom: 8px;
    left: 8px;
    width: 1px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04));
  }

  .roadmap-col {
    flex-direction: column;
    text-align: left;
    align-items: flex-start;
    padding: 16px 0;
    position: relative;
  }

  .roadmap-col:hover { transform: none; }
  .roadmap-bg { display: none; }
  .roadmap-icon { display: none; }

  .roadmap-bubble {
    min-height: 0;
    padding: 0;
    background: none;
    border: none;
    margin-bottom: 0;
    margin-top: 6px;
    order: 4;
  }

  .bubble-arrow { display: none; }

  .roadmap-bubble p {
    font-size: 13px;
    line-height: 1.65;
    color: rgba(255, 255, 255, 0.55);
  }

  .roadmap-track {
    position: absolute;
    left: -33px;
    top: 20px;
    width: auto;
    height: auto;
  }

  .roadmap-track::before { display: none; }
  .roadmap-dot { width: 9px; height: 9px; }
  .roadmap-dot-current { width: 11px; height: 11px; }
  .dot-ring { inset: -5px; }

  .roadmap-year {
    font-size: 12px;
    margin-bottom: 4px;
    order: 0;
  }

  .roadmap-stage {
    margin-bottom: 2px;
    order: 1;
  }

  .roadmap-phase { font-size: 11px; margin-bottom: 2px; }
  .roadmap-stage h3 { font-size: 18px; }

  .roadmap-tagline {
    font-size: 12px;
    margin-bottom: 0;
    order: 3;
  }

  .contact-cards {
    flex-direction: column;
    align-items: center;
  }

  .contact-card {
    width: 100%;
    max-width: 400px;
    min-width: 0;
  }

  .footer-inner { gap: 36px; }

  .cursor-glow { display: none; }
  .nav-indicator-wrap { display: none; }

  .section-ethics-banner { padding: 72px 0; }

  .hero-orb-1 { width: 350px; height: 350px; }
  .hero-orb-2 { width: 250px; height: 250px; }
  .hero-orb-3 { display: none; }
}

/* ==============================================
   Responsive: Mobile (<=544px)
   ============================================== */
@media (max-width: 544px) {
  .container { padding: 0 20px; }

  /* --- 全局：标题统一左对齐 --- */
  .section-header.center {
    text-align: left;
  }

  .section-header.center .section-desc {
    margin-left: 0;
    margin-right: 0;
  }

  .section-header.center .section-title::after {
    margin: 12px 0 0;
  }

  .section-contact {
    text-align: left;
  }

  .section + .section::before {
    display: none;
  }

  /* --- Header --- */
  .header-inner { height: 56px; }
  .site-branding .logo-text { font-size: 15px; }

  .logo-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
  }

  .main-nav { top: 56px; }

  /* --- Hero --- */
  .hero { padding: 88px 0 40px; }

  .hero-title {
    font-size: 28px;
    padding-bottom: 20px;
  }

  .hero-desc {
    font-size: 14px;
    margin-bottom: 28px;
  }

  .hero-badge {
    font-size: 11px;
    padding: 6px 14px;
    margin-bottom: 20px;
    box-shadow: none;
  }

  .hero-actions {
    flex-direction: row;
    gap: 10px;
    margin-bottom: 36px;
  }

  .hero-actions .btn {
    justify-content: center;
    padding: 11px 20px;
    font-size: 13px;
  }

  .hero-stats {
    gap: 28px;
    margin-top: 4px;
  }

  .stat-num { font-size: 28px; }
  .stat-suffix { font-size: 13px; }
  .stat-label { font-size: 11px; }

  /* --- 隐藏装饰性元素（省性能 + 简洁） --- */
  .hero-grid-lines,
  .section-dot-grid,
  .hero-orb-2,
  .hero-orb-3,
  .contact-glow,
  .grain-overlay,
  .nav-indicator-wrap { display: none; }

  /* --- 返回顶部按钮移动端位置 --- */
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(255, 255, 255, 0.95);
  }

  /* --- 移动端关闭 backdrop-filter 防止卡顿 --- */
  .glass-card,
  .section-dark .glass-card {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(255, 255, 255, 0.92);
  }

  .section-dark .glass-card {
    background: rgba(255, 255, 255, 0.05);
  }

  .product-block--orange,
  .product-block--blue,
  .product-block--dark {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(255, 255, 255, 0.95);
  }

  .location-card {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(255, 255, 255, 0.95);
  }

  .contact-card {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .highlight-item {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .client-pill {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(255, 255, 255, 0.95);
  }

  .roadmap-bubble {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .roadmap-icon {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .product-featured-badge {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .hero-orb-1 {
    width: 220px;
    height: 220px;
    filter: blur(60px);
  }

  /* --- Section 通用 --- */
  .section { padding: 36px 0; }
  .section-title { font-size: 20px; }
  .section-desc { font-size: 13px; line-height: 1.75; }
  .section-header { margin-bottom: 20px; }
  .section-tag { font-size: 10px; margin-bottom: 6px; }
  .tag-line { width: 14px; }
  .section-header.center .section-title::after { height: 2px; width: 32px; margin-top: 10px; }

  /* --- 愿景卡片：横向紧凑 --- */
  .vision-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .vision-card {
    padding: 18px 16px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 14px;
    text-align: left;
    border-top: none;
    border-left: 2px solid transparent;
  }

  .vision-card:hover {
    border-top-color: transparent;
  }

  .vision-icon-wrap {
    margin: 0;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    flex-shrink: 0;
    box-shadow: none;
  }

  .vision-icon-wrap svg { width: 20px; height: 20px; }

  .vision-card h3 {
    font-size: 15px;
    margin-bottom: 2px;
  }

  .vision-card p { font-size: 12px; line-height: 1.6; }

  /* --- 产品矩阵 --- */
  .product-matrix {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .product-block { border-radius: var(--radius-lg); }
  .product-featured-badge { font-size: 9px; padding: 3px 8px; }

  .product-block-header {
    padding: 18px 16px;
    gap: 12px;
  }

  .product-block-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
  }

  .product-block-header h3 { font-size: 15px; }
  .product-block-sub { font-size: 11px; }
  .product-block--orange .product-body,
  .product-block--blue .product-body,
  .product-block--dark .product-body {
    margin-left: 16px;
  }

  .product-list { padding: 6px 14px 14px 14px; }
  .product-list li { padding: 8px 0; font-size: 13px; }

  /* --- 产品介绍 --- */
  .showcase-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .showcase-card {
    padding: 16px;
    border-radius: var(--radius-md);
    gap: 12px;
  }

  .showcase-num {
    width: 28px;
    height: 28px;
    font-size: 10px;
    border-radius: 7px;
  }

  .showcase-card h3 { font-size: 14px; margin-bottom: 3px; }
  .showcase-card p { font-size: 12px; line-height: 1.6; }

  /* --- 客户 --- */
  .client-marquee { margin-top: 24px; }

  .client-pill {
    padding: 8px 16px;
    height: 42px;
    font-size: 12px;
  }

  .client-pill img {
    height: 18px;
    width: auto;
  }

  /* --- 团队 & 领导 --- */
  .two-col, .two-col.reverse {
    flex-direction: column;
    gap: 24px;
  }

  .university-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

  .uni-logo {
    height: 60px;
    padding: 14px 12px;
    border-radius: var(--radius-sm);
  }

  .uni-logo img {
    height: 30px;
    width: auto;
  }

  .uni-logo:hover {
    transform: none;
    box-shadow: none;
  }

  .leadership-highlights {
    flex-direction: row;
    gap: 10px;
  }

  .highlight-item {
    flex: 1;
    flex-direction: column;
    text-align: center;
    padding: 14px 8px;
    gap: 6px;
    border-radius: var(--radius-sm);
  }

  .highlight-num { font-size: 16px; }
  .highlight-text { font-size: 11px; line-height: 1.4; }

  .highlight-item:hover {
    transform: none;
    box-shadow: none;
  }

  .placeholder-img {
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-md);
  }

  /* --- 伦理 --- */
  .section-ethics-banner { padding: 40px 0; }
  .ethics-content { max-width: 100%; }
  .ethics-content .section-desc { margin-bottom: 24px; }

  /* --- Roadmap 移动端：垂直时间线 --- */
  .roadmap {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 24px;
    padding-left: 32px;
    position: relative;
  }

  /* 垂直轨道线 */
  .roadmap::before {
    content: '';
    position: absolute;
    top: 8px;
    bottom: 8px;
    left: 6px;
    width: 1px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04));
  }

  .roadmap-col {
    flex-direction: column;
    text-align: left;
    align-items: flex-start;
    padding: 14px 0;
    position: relative;
  }

  .roadmap-col:hover { transform: none; }
  .roadmap-bg { display: none; }
  .roadmap-icon { display: none; }

  /* 气泡改为简化文字描述 */
  .roadmap-bubble {
    min-height: 0;
    padding: 0;
    background: none;
    border: none;
    margin-bottom: 0;
    margin-top: 6px;
    order: 4;
  }

  .bubble-arrow { display: none; }

  .roadmap-bubble p {
    font-size: 13px;
    line-height: 1.65;
    color: rgba(255, 255, 255, 0.55);
  }

  /* 节点移到左侧 */
  .roadmap-track {
    position: absolute;
    left: -29px;
    top: 18px;
    width: auto;
    height: auto;
  }

  .roadmap-track::before { display: none; }
  .roadmap-dot { width: 7px; height: 7px; }
  .roadmap-dot-current { width: 9px; height: 9px; }
  .dot-ring { inset: -5px; }

  /* 排列顺序：年份 → 标题 → 标语 → 描述 */
  .roadmap-year {
    font-size: 11px;
    margin-bottom: 4px;
    order: 0;
  }

  .roadmap-stage {
    margin-bottom: 2px;
    order: 1;
  }

  .roadmap-phase { font-size: 10px; margin-bottom: 2px; }
  .roadmap-stage h3 { font-size: 16px; }

  .roadmap-tagline {
    font-size: 11px;
    margin-bottom: 0;
    order: 3;
  }

  .roadmap-future .roadmap-stage h3 {
    -webkit-text-fill-color: var(--color-primary);
  }

  /* --- 地址 --- */
  .location-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .location-card--map {
    grid-column: span 1;
    padding: 16px;
    border-left: 2px solid transparent;
  }

  .location-card--map.touch-active {
    border-left-color: var(--color-primary);
  }

  .location-map-header .location-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
  }

  .location-map-header .location-icon svg { width: 16px; height: 16px; }

  .location-card:not(.location-card--map) {
    padding: 14px 14px 14px 16px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: flex-start;
    gap: 14px;
    border-left: 2px solid transparent;
    transition: border-color 0.2s;
  }

  .location-card:not(.location-card--map).touch-active {
    border-left-color: var(--color-primary);
  }

  .location-card:not(.location-card--map) .location-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    margin-bottom: 0;
    margin-top: 2px;
    flex-shrink: 0;
  }

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

  .location-card-body h3 {
    font-size: 14px;
    margin-bottom: 4px;
  }

  .location-card-body p {
    font-size: 11px;
    line-height: 1.6;
  }

  .location-icon svg { width: 18px; height: 18px; }

  .map-label { font-size: 8px; }

  /* --- 联系 --- */
  .section-contact { padding: 36px 0; }
  .section-contact .section-title { font-size: 20px; }

  .section-contact .section-tag {
    justify-content: flex-start;
  }

  .contact-cards {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-top: 24px;
  }

  .contact-card {
    padding: 24px 20px;
    min-width: 0;
    border-radius: var(--radius-md);
    flex-direction: row;
    align-items: center;
    gap: 16px;
    text-align: left;
  }

  .contact-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    flex-shrink: 0;
    margin-bottom: 0;
  }

  .contact-card-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  .contact-label { font-size: 12px; }
  .contact-email { font-size: 14px; }

  /* --- Footer --- */
  .footer-inner {
    flex-direction: column;
    gap: 24px;
    padding: 32px 20px 24px;
  }

  .footer-logo { font-size: 15px; }
  .footer-slogan { font-size: 12px; }
  .footer-col h4 { margin-bottom: 8px; font-size: 10px; }
  .footer-col ul li { padding: 2px 0; }
  .footer-col ul li a { font-size: 12px; }
  .footer-bottom p { font-size: 10px; }

  /* --- 禁用 hover 效果 --- */
  .vision-card:hover,
  .product-block:hover,
  .showcase-card:hover,
  .location-card:hover,
  .contact-card:hover {
    transform: none;
    box-shadow: none;
    border-color: rgba(0, 0, 0, 0.05);
  }

  /* --- 移动端简化循环动画 --- */
  .btn-glow { animation: none; box-shadow: 0 4px 16px rgba(255, 98, 16, 0.25); }
  .vision-icon-wrap { animation: none; box-shadow: 0 6px 16px rgba(255, 98, 16, 0.2); }
  .contact-icon { animation: none; box-shadow: 0 4px 12px rgba(255, 98, 16, 0.2); }
  .scroll-progress::after { display: none; }
}

/* ==============================================
   Reduced Motion 无障碍
   ============================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}