/* ============================================
   流体精密 · Fluid Precision Design System
   塑料制品企业官网 - 个性化设计系统
   ============================================ */

/* ---------- 字体导入 ---------- */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

/* ---------- 设计令牌 ---------- */
:root {
  /* 主色 - 工业石墨系 */
  --color-void: #0A0E14;
  --color-graphite: #141A24;
  --color-steel: #1C2330;
  --color-iron: #2A3340;
  --color-ash: #4A5568;

  /* 强调色 - 熔融琥珀 (代表注塑高温) */
  --color-molten: #FF6B1A;
  --color-molten-light: #FF8C42;
  --color-molten-dark: #E55100;
  --color-ember: #FFAB40;

  /* 强调色 - 精密青蓝 (代表精度与冷却) */
  --color-cyan: #00D4FF;
  --color-cyan-deep: #0099CC;
  --color-cyan-glow: rgba(0, 212, 255, 0.4);

  /* 表面色 */
  --color-surface: #F5F6F8;
  --color-surface-alt: #FFFFFF;
  --color-surface-dark: #0F1419;

  /* 文字色 */
  --color-text: #0A0E14;
  --color-text-light: #E8EAED;
  --color-text-muted: #6B7280;
  --color-text-muted-light: #9CA3AF;

  /* 功能色 */
  --color-success: #10B981;
  --color-warning: #F59E0B;

  /* 间距系统 (8px基准) */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 2.5rem;
  --space-6: 3rem;
  --space-8: 4rem;
  --space-10: 5rem;
  --space-12: 6rem;
  --space-16: 8rem;
  --space-20: 10rem;

  /* 字体 */
  --font-display: 'Space Grotesk', 'Noto Sans SC', sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(10, 14, 20, 0.06);
  --shadow-md: 0 4px 12px rgba(10, 14, 20, 0.08);
  --shadow-lg: 0 12px 32px rgba(10, 14, 20, 0.12);
  --shadow-xl: 0 24px 64px rgba(10, 14, 20, 0.18);
  --shadow-molten: 0 8px 32px rgba(255, 107, 26, 0.3);
  --shadow-cyan: 0 8px 32px rgba(0, 212, 255, 0.25);

  /* 过渡 */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 0.2s var(--ease-out);
  --transition-base: 0.35s var(--ease-out);
  --transition-slow: 0.6s var(--ease-out);

  /* 布局 */
  --container-max: 1280px;
  --nav-height: 72px;
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-surface);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  display: block;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* ---------- 排版 ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

.mono { font-family: var(--font-mono); }

/* ---------- 容器 ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.container-wide {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* ============================================
   导航栏 - 悬浮玻璃质感
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: all var(--transition-base);
}

.navbar-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.navbar.scrolled {
  background: rgba(10, 14, 20, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.navbar.scrolled .nav-logo-text,
.navbar.scrolled .nav-link {
  color: var(--color-text-light);
}

.navbar.scrolled .nav-logo-mark {
  background: linear-gradient(135deg, var(--color-molten), var(--color-ember));
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.nav-logo-mark {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-molten), var(--color-molten-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: white;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.nav-logo-mark::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.3) 50%, transparent 60%);
  transform: translateX(-100%);
  transition: transform 0.6s var(--ease-out);
}

.nav-logo:hover .nav-logo-mark::after {
  transform: translateX(100%);
}

.nav-logo-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--color-text-light);
  letter-spacing: -0.01em;
  transition: color var(--transition-fast);
}

.nav-logo-text span {
  color: var(--color-molten);
}

/* 导航链接 */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  position: relative;
  padding: var(--space-2) var(--space-3);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-light);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-molten);
  transition: all var(--transition-base);
  transform: translateX(-50%);
}

.nav-link:hover::before,
.nav-link.active::before {
  width: 24px;
}

.nav-link:hover {
  color: var(--color-molten-light);
}

.nav-link.active {
  color: var(--color-molten-light);
}

/* CTA按钮 */
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.625rem 1.25rem;
  background: var(--color-molten);
  color: white;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-molten);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.nav-cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.nav-cta:hover {
  background: var(--color-molten-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(255, 107, 26, 0.45);
}

.nav-cta:hover::before {
  width: 300px;
  height: 300px;
}

.nav-cta > * {
  position: relative;
  z-index: 1;
}

/* 移动端菜单按钮 */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border-radius: var(--radius-md);
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-text-light);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 移动端菜单 */
.mobile-menu {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-void);
  z-index: 999;
  padding: var(--space-6) var(--space-4);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-menu .nav-link {
  display: block;
  padding: var(--space-3) var(--space-2);
  font-size: 1.125rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 0;
}

.mobile-menu .nav-link::before {
  display: none;
}

.mobile-menu .nav-cta {
  margin-top: var(--space-4);
  justify-content: center;
  padding: var(--space-3) var(--space-4);
}

/* ============================================
   按钮系统
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.875rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--color-molten);
  color: white;
  box-shadow: var(--shadow-molten);
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-molten-light), var(--color-ember));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(255, 107, 26, 0.5);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary span {
  position: relative;
  z-index: 1;
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-light);
  border: 1.5px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
  background: rgba(0, 212, 255, 0.05);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
  color: white;
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-iron);
}

.btn-ghost:hover {
  border-color: var(--color-molten);
  color: var(--color-molten);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-base);
}

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

/* ============================================
   通用区块
   ============================================ */
.section {
  padding: var(--space-16) 0;
  position: relative;
}

.section-sm {
  padding: var(--space-12) 0;
}

.section-dark {
  background: var(--color-void);
  color: var(--color-text-light);
}

.section-dark h2,
.section-dark h3 {
  color: var(--color-text-light);
}

/* 区块标签 */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-molten);
  margin-bottom: var(--space-3);
  padding: 4px 12px 4px 8px;
  background: rgba(255, 107, 26, 0.08);
  border-radius: var(--radius-full);
}

.section-label::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-molten);
  flex-shrink: 0;
}

.section-dark .section-label {
  color: var(--color-cyan);
  background: rgba(0, 212, 255, 0.08);
}

.section-dark .section-label::before {
  background: var(--color-cyan);
}

/* 区块标题 */
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--space-3);
  line-height: 1.1;
  position: relative;
  display: inline-block;
}

.section-header.center .section-title {
  display: block;
}

.section-title::after {
  content: '';
  display: block;
  width: 0;
  height: 3px;
  margin-top: var(--space-3);
  background: linear-gradient(90deg, var(--color-molten), var(--color-ember), transparent);
  border-radius: 2px;
  transition: width 1s var(--ease-out) 0.3s;
}

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

.reveal.visible .section-title::after,
.section-header.center.reveal.visible .section-title::after {
  width: 60px;
}

.section-dark .section-title::after {
  background: linear-gradient(90deg, var(--color-cyan), var(--color-molten), transparent);
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 640px;
  line-height: 1.7;
}

.section-dark .section-subtitle {
  color: var(--color-text-muted-light);
}

.section-header {
  margin-bottom: var(--space-8);
}

.section-header.center {
  text-align: center;
}

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

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

/* ============================================
   首页 Hero 区 - 熔融流体动画
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-void);
  color: var(--color-text-light);
  overflow: hidden;
  padding: calc(var(--nav-height) + var(--space-8)) 0 var(--space-12);
}

/* Background image */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  opacity: 0.55;
  filter: contrast(1.15) saturate(0.8) brightness(0.75) hue-rotate(-8deg);
  transform: scale(1.05);
}

/* Gradient overlay over image */
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: 
    radial-gradient(ellipse at 25% 30%, rgba(255, 107, 26, 0.12) 0%, transparent 55%),
    radial-gradient(ellipse at 75% 60%, rgba(0, 180, 240, 0.08) 0%, transparent 55%),
    linear-gradient(180deg, 
      rgba(10, 14, 20, 0.5) 0%, 
      rgba(10, 14, 20, 0.35) 40%,
      rgba(10, 14, 20, 0.7) 80%,
      rgba(10, 14, 20, 0.95) 100%);
  pointer-events: none;
}

/* Subtle noise texture */
.hero-noise {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0.03;
  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='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none;
}

/* Decorative grid pattern */
.hero-grid {
  position: absolute;
  inset: 0;
  z-index: 2;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  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%);
  pointer-events: none;
}

/* Floating geometric accents */
.hero-accent {
  position: absolute;
  z-index: 3;
  pointer-events: none;
}

.hero-accent-1 {
  top: 18%;
  right: 8%;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(255, 107, 26, 0.2);
  border-radius: 50%;
  animation: heroFloat 12s ease-in-out infinite;
}

.hero-accent-1::before {
  content: '';
  position: absolute;
  inset: 20px;
  border: 1px dashed rgba(0, 212, 255, 0.15);
  border-radius: 50%;
  animation: heroRotate 30s linear infinite;
}

.hero-accent-2 {
  bottom: 22%;
  right: 18%;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, rgba(255, 107, 26, 0.08), rgba(0, 212, 255, 0.05));
  border: 1px solid rgba(255, 107, 26, 0.15);
  border-radius: 16px;
  transform: rotate(15deg);
  animation: heroFloat 10s ease-in-out infinite reverse;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.hero-accent-3 {
  top: 30%;
  right: 28%;
  width: 6px;
  height: 6px;
  background: var(--color-molten);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--color-molten), 0 0 40px rgba(255, 107, 26, 0.5);
  animation: heroPulse 3s ease-in-out infinite;
}

@keyframes heroFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

@keyframes heroRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes heroPulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.4); }
}

/* Hero content */
.hero-content {
  position: relative;
  z-index: 10;
  width: 100%;
}

/* Industry badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 16px 6px 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  letter-spacing: 0.02em;
  position: relative;
  overflow: hidden;
}

.hero-badge::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 107, 26, 0.15), transparent);
  transform: translateX(-100%);
  animation: badgeShine 4s ease-in-out infinite;
}

@keyframes badgeShine {
  0%, 70% { transform: translateX(-100%); }
  85%, 100% { transform: translateX(100%); }
}

.hero-badge-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--color-molten), var(--color-ember));
  border-radius: 50%;
  font-size: 0.875rem;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.15);
}

/* Main title */
.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-5);
  max-width: 20ch;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-title .text-reveal-inner:first-child {
  display: block;
  font-size: 0.45em;
  font-weight: 500;
  color: var(--color-cyan);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  margin-bottom: 0.5em;
  opacity: 0.9;
}

.hero-title .text-reveal-inner:last-child {
  display: block;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--color-molten) 0%, var(--color-ember) 50%, var(--color-molten-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

.hero-desc {
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  color: rgba(255, 255, 255, 0.75);
  max-width: 600px;
  line-height: 1.75;
  margin-bottom: var(--space-6);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.4);
}

.hero-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
}

/* Hero stats */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  padding: var(--space-5) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  max-width: 900px;
  position: relative;
}

.hero-stats::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-molten), transparent);
}

.hero-stat {
  position: relative;
  padding-left: var(--space-3);
  transition: transform var(--transition-base);
}

.hero-stat:hover {
  transform: translateY(-4px);
}

.hero-stat::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-molten), transparent);
  opacity: 0.4;
  transition: opacity var(--transition-base);
}

.hero-stat:hover::before {
  opacity: 1;
}

.hero-stat-value {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--color-text-light);
  line-height: 1;
  margin-bottom: var(--space-1);
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
}

.hero-stat-value .unit {
  font-size: 0.5em;
  color: var(--color-molten);
  margin-left: 0.15em;
  font-weight: 500;
}

.hero-stat-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted-light);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted-light);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
}

.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--color-molten), transparent);
  position: relative;
  overflow: hidden;
}

.hero-scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 50%;
  background: var(--color-molten);
  animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
  0% { top: -100%; }
  100% { top: 200%; }
}

/* ============================================
   滚动文字带 - Marquee
   ============================================ */
.marquee {
  background: var(--color-void);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: var(--space-4) 0;
  overflow: hidden;
  position: relative;
}

.marquee::before,
.marquee::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 120px;
  z-index: 2;
  pointer-events: none;
}

.marquee::before {
  left: 0;
  background: linear-gradient(90deg, var(--color-void), transparent);
}

.marquee::after {
  right: 0;
  background: linear-gradient(270deg, var(--color-void), transparent);
}

.marquee-track {
  display: flex;
  gap: var(--space-8);
  white-space: nowrap;
  animation: marquee 30s linear infinite;
  width: max-content;
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--color-text-light);
}

.marquee-item .sep {
  width: 8px;
  height: 8px;
  background: var(--color-molten);
  border-radius: 50%;
  flex-shrink: 0;
}

.marquee-item .accent {
  color: var(--color-molten);
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ============================================
   三大核心入口卡片
   ============================================ */
.core-entries {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: -80px;
  position: relative;
  z-index: 20;
}

.core-card {
  position: relative;
  background: var(--color-surface-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
  overflow: hidden;
  cursor: pointer;
  border: 1px solid rgba(10, 14, 20, 0.04);
}

.core-card::after {
  content: '';
  position: absolute;
  bottom: -50%;
  right: -30%;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(255, 107, 26, 0.06) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}

.core-card:hover::after {
  opacity: 1;
}

.core-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-molten), var(--color-ember));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.core-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.core-card:hover::before {
  transform: scaleX(1);
}

.core-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255, 107, 26, 0.12), rgba(255, 107, 26, 0.04));
  border: 1px solid rgba(255, 107, 26, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  transition: all var(--transition-base);
}

.core-card:hover .core-card-icon {
  background: linear-gradient(135deg, var(--color-molten), var(--color-molten-dark));
  border-color: var(--color-molten);
  transform: rotate(-5deg) scale(1.05);
  box-shadow: var(--shadow-molten);
}

.core-card-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-molten);
  transition: color var(--transition-base);
}

.core-card:hover .core-card-icon svg {
  color: white;
}

.core-card-num {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  opacity: 0.5;
}

.core-card h3 {
  font-size: 1.375rem;
  margin-bottom: var(--space-2);
}

.core-card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
  margin-bottom: var(--space-4);
}

.core-card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-molten);
  transition: gap var(--transition-base);
}

.core-card:hover .core-card-link {
  gap: var(--space-2);
}

.core-card-link svg {
  width: 16px;
  height: 16px;
}

/* ============================================
   对比表格 - 传统vs本厂
   ============================================ */
.compare-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--color-surface-alt);
}

.compare-table th,
.compare-table td {
  padding: var(--space-4) var(--space-5);
  text-align: left;
}

.compare-table thead {
  background: var(--color-void);
  color: var(--color-text-light);
}

.compare-table thead th {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
}

.compare-table thead th.highlight {
  color: var(--color-molten);
  background: rgba(255, 107, 26, 0.12);
  position: relative;
}

.compare-table thead th.highlight::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-molten);
}

.compare-table tbody tr {
  border-bottom: 1px solid rgba(10, 14, 20, 0.06);
  transition: background var(--transition-fast);
}

.compare-table tbody tr:last-child {
  border-bottom: none;
}

.compare-table tbody tr:hover {
  background: rgba(255, 107, 26, 0.02);
}

.compare-table td:first-child {
  font-weight: 600;
  color: var(--color-text);
}

.compare-table td.traditional {
  color: var(--color-text-muted);
  position: relative;
  padding-left: calc(var(--space-5) + 24px);
}

.compare-table td.traditional::before {
  content: '';
  position: absolute;
  left: var(--space-5);
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(239, 68, 68, 0.1);
  border: 1.5px solid rgba(239, 68, 68, 0.3);
}

.compare-table td.traditional::after {
  content: '';
  position: absolute;
  left: calc(var(--space-5) + 4px);
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
  width: 8px;
  height: 8px;
  border-right: 2px solid #EF4444;
  border-bottom: 2px solid #EF4444;
  transform-origin: center;
  transform: translateY(-65%) rotate(45deg);
}

.compare-table td.ours {
  color: var(--color-molten);
  font-weight: 600;
  background: rgba(255, 107, 26, 0.04);
  position: relative;
  padding-left: calc(var(--space-5) + 24px);
}

.compare-table td.ours::before {
  content: '';
  position: absolute;
  left: var(--space-5);
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(255, 107, 26, 0.15);
  border: 1.5px solid var(--color-molten);
}

.compare-table td.ours::after {
  content: '';
  position: absolute;
  left: calc(var(--space-5) + 4px);
  top: 50%;
  width: 8px;
  height: 4px;
  border-left: 2px solid var(--color-molten);
  border-bottom: 2px solid var(--color-molten);
  transform: translateY(-70%) rotate(-45deg);
}

/* ============================================
   产品分类网格 (新 - 图标式)
   ============================================ */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.product-card-large {
  position: relative;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-5);
  cursor: pointer;
  text-decoration: none;
  color: var(--color-text-light);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.product-card-large::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-molten), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.product-card-large::after {
  content: '';
  position: absolute;
  bottom: -50%;
  right: -30%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(255, 107, 26, 0.08) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}

.product-card-large:hover {
  background: linear-gradient(160deg, rgba(255, 107, 26, 0.1) 0%, rgba(255, 255, 255, 0.03) 100%);
  border-color: rgba(255, 107, 26, 0.35);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}

.product-card-large:hover::before,
.product-card-large:hover::after {
  opacity: 1;
}

.product-card-large:hover::before {
  opacity: 1;
}

.product-card-large-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-3);
}

.product-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255, 107, 26, 0.15) 0%, rgba(255, 107, 26, 0.05) 100%);
  border: 1px solid rgba(255, 107, 26, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-molten-light);
  transition: all var(--transition-base);
}

.product-icon svg {
  width: 28px;
  height: 28px;
}

.product-card-large:hover .product-icon {
  background: linear-gradient(135deg, var(--color-molten) 0%, var(--color-ember) 100%);
  border-color: var(--color-molten);
  color: white;
  transform: rotate(-5deg) scale(1.05);
}

.product-card-large .product-card-arrow {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted-light);
  transition: all var(--transition-base);
}

.product-card-large:hover .product-card-arrow {
  background: var(--color-molten);
  border-color: var(--color-molten);
  color: white;
  transform: rotate(-45deg);
}

.product-card-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(107, 207, 255, 0.1);
  border: 1px solid rgba(107, 207, 255, 0.2);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-cyan);
  align-self: flex-start;
  letter-spacing: 0.02em;
}

.product-card-large h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: white;
  margin: 0;
  line-height: 1.3;
}

/* 产品卡片差异化色彩 - 五大领域 */
.product-card-large.theme-electronics .product-icon {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.18) 0%, rgba(0, 212, 255, 0.06) 100%);
  border-color: rgba(0, 212, 255, 0.3);
  color: var(--color-cyan);
}
.product-card-large.theme-electronics .product-card-tag {
  background: rgba(0, 212, 255, 0.1);
  border-color: rgba(0, 212, 255, 0.25);
  color: var(--color-cyan);
}
.product-card-large.theme-electronics .product-specs {
  color: var(--color-cyan);
}
.product-card-large.theme-electronics:hover .product-icon {
  background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-cyan-deep) 100%);
  border-color: var(--color-cyan);
}
.product-card-large.theme-electronics:hover {
  border-color: rgba(0, 212, 255, 0.35);
  background: linear-gradient(160deg, rgba(0, 212, 255, 0.08) 0%, rgba(255, 255, 255, 0.03) 100%);
}
.product-card-large.theme-electronics::after {
  background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
}

.product-card-large.theme-medical .product-icon {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.18) 0%, rgba(16, 185, 129, 0.06) 100%);
  border-color: rgba(16, 185, 129, 0.3);
  color: var(--color-success);
}
.product-card-large.theme-medical .product-card-tag {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.25);
  color: var(--color-success);
}
.product-card-large.theme-medical .product-specs {
  color: var(--color-success);
}
.product-card-large.theme-medical:hover .product-icon {
  background: linear-gradient(135deg, var(--color-success) 0%, #059669 100%);
  border-color: var(--color-success);
}
.product-card-large.theme-medical:hover {
  border-color: rgba(16, 185, 129, 0.35);
  background: linear-gradient(160deg, rgba(16, 185, 129, 0.08) 0%, rgba(255, 255, 255, 0.03) 100%);
}
.product-card-large.theme-medical::after {
  background: radial-gradient(circle, rgba(16, 185, 129, 0.1) 0%, transparent 70%);
}

.product-card-large.theme-auto .product-icon {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.18) 0%, rgba(245, 158, 11, 0.06) 100%);
  border-color: rgba(245, 158, 11, 0.3);
  color: var(--color-warning);
}
.product-card-large.theme-auto .product-card-tag {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.25);
  color: var(--color-warning);
}
.product-card-large.theme-auto .product-specs {
  color: var(--color-warning);
}
.product-card-large.theme-auto:hover .product-icon {
  background: linear-gradient(135deg, var(--color-warning) 0%, #D97706 100%);
  border-color: var(--color-warning);
}
.product-card-large.theme-auto:hover {
  border-color: rgba(245, 158, 11, 0.35);
  background: linear-gradient(160deg, rgba(245, 158, 11, 0.08) 0%, rgba(255, 255, 255, 0.03) 100%);
}
.product-card-large.theme-auto::after {
  background: radial-gradient(circle, rgba(245, 158, 11, 0.1) 0%, transparent 70%);
}

.product-card-large.theme-packaging .product-icon {
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.18) 0%, rgba(168, 85, 247, 0.06) 100%);
  border-color: rgba(168, 85, 247, 0.3);
  color: #A855F7;
}
.product-card-large.theme-packaging .product-card-tag {
  background: rgba(168, 85, 247, 0.1);
  border-color: rgba(168, 85, 247, 0.25);
  color: #A855F7;
}
.product-card-large.theme-packaging .product-specs {
  color: #A855F7;
}
.product-card-large.theme-packaging:hover .product-icon {
  background: linear-gradient(135deg, #A855F7 0%, #7C3AED 100%);
  border-color: #A855F7;
}
.product-card-large.theme-packaging:hover {
  border-color: rgba(168, 85, 247, 0.35);
  background: linear-gradient(160deg, rgba(168, 85, 247, 0.08) 0%, rgba(255, 255, 255, 0.03) 100%);
}
.product-card-large.theme-packaging::after {
  background: radial-gradient(circle, rgba(168, 85, 247, 0.1) 0%, transparent 70%);
}

.product-card-large p {
  font-size: 0.875rem;
  color: var(--color-text-muted-light);
  line-height: 1.65;
  margin: 0;
  flex-grow: 1;
}

.product-specs {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-cyan);
  padding-top: var(--space-3);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  margin-top: var(--space-2);
}

.product-specs span:not(:nth-child(2n)) {
  font-weight: 500;
}

/* ============================================
   模具开发流程 - 时间线
   ============================================ */
.process-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-2);
  position: relative;
}

.process-flow::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-molten), var(--color-cyan));
  opacity: 0.3;
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 2;
}

.process-step-num {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-3);
  border-radius: 50%;
  background: var(--color-void);
  border: 2px solid var(--color-molten);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-molten);
  transition: all var(--transition-base);
  position: relative;
  box-shadow: 0 4px 16px rgba(255, 107, 26, 0.15);
}

.process-step-num::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-molten), var(--color-cyan));
  opacity: 0;
  z-index: -1;
  transition: opacity var(--transition-base);
}

.process-step:hover .process-step-num {
  background: var(--color-molten);
  color: white;
  transform: scale(1.1) translateY(-4px);
  box-shadow: var(--shadow-molten);
}

.process-step:hover .process-step-num::before {
  opacity: 0.3;
}

.process-step-num::after {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid var(--color-molten);
  opacity: 0;
  transition: all var(--transition-base);
}

.process-step:hover .process-step-num::after {
  opacity: 0.3;
  inset: -10px;
}

.process-step h4 {
  font-size: 1.0625rem;
  margin-bottom: var(--space-1);
}

.process-step p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.process-step .duration {
  display: inline-block;
  margin-top: var(--space-2);
  padding: 0.125rem 0.5rem;
  background: rgba(0, 212, 255, 0.1);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-cyan-deep);
}

/* ============================================
   认证徽标
   ============================================ */
.cert-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  padding: var(--space-5) 0;
}

.cert-badge {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.cert-badge::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 107, 26, 0.08), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.cert-badge:hover {
  background: rgba(255, 107, 26, 0.08);
  border-color: rgba(255, 107, 26, 0.3);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(255, 107, 26, 0.12);
}

.cert-badge:hover::before {
  opacity: 1;
}

.cert-badge svg {
  width: 20px;
  height: 20px;
  color: var(--color-molten);
  position: relative;
  z-index: 1;
}

.cert-badge span {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-light);
  font-weight: 500;
  position: relative;
  z-index: 1;
}

/* ============================================
   FAQ 手风琴
   ============================================ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-surface-alt);
  border: 1px solid rgba(10, 14, 20, 0.06);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item:hover {
  border-color: rgba(255, 107, 26, 0.2);
  box-shadow: var(--shadow-sm);
}

.faq-item.open {
  border-color: rgba(255, 107, 26, 0.3);
  box-shadow: 0 4px 16px rgba(255, 107, 26, 0.08);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  text-align: left;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--color-text);
  gap: var(--space-4);
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-molten);
}

.faq-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(255, 107, 26, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-molten);
  transition: all var(--transition-base);
}

.faq-item.open .faq-icon {
  background: var(--color-molten);
  color: white;
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-answer-inner {
  padding: 0 var(--space-5) var(--space-4) var(--space-5);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================
   CTA 区块
   ============================================ */
.cta-section {
  position: relative;
  padding: var(--space-16) 0;
  background: var(--color-void);
  color: var(--color-text-light);
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 30% 50%, rgba(255, 107, 26, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 70% 50%, rgba(0, 212, 255, 0.08) 0%, transparent 50%);
}

.cta-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  margin-bottom: var(--space-3);
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.cta-content p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: var(--space-6);
  line-height: 1.75;
}

.cta-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   页脚
   ============================================ */
.footer {
  background: var(--color-surface-dark);
  color: var(--color-text-muted-light);
  padding: var(--space-12) 0 var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-molten), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-brand .nav-logo-text {
  color: var(--color-text-light);
  margin-bottom: var(--space-3);
}

.footer-desc {
  font-size: 0.875rem;
  line-height: 1.75;
  max-width: 320px;
  margin-bottom: var(--space-4);
  color: rgba(255, 255, 255, 0.5);
}

.footer-col h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-light);
  margin-bottom: var(--space-3);
  font-family: var(--font-body);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
  padding-bottom: var(--space-2);
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--color-molten);
  border-radius: 1px;
}

.footer-col ul li {
  margin-bottom: var(--space-2);
}

.footer-col a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  transition: all var(--transition-fast);
  display: inline-block;
}

.footer-col a:hover {
  color: var(--color-molten);
  transform: translateX(3px);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: 0.875rem;
  margin-bottom: var(--space-2);
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition-fast);
}

.footer-contact-item:hover {
  color: rgba(255, 255, 255, 0.8);
}

.footer-contact-item svg {
  width: 16px;
  height: 16px;
  color: var(--color-molten);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.4);
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ============================================
   通用动画工具类
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* ============================================
   页面横幅 (内页)
   ============================================ */
.page-hero {
  position: relative;
  padding: calc(var(--nav-height) + var(--space-10)) 0 var(--space-10);
  background: var(--color-void);
  color: var(--color-text-light);
  overflow: hidden;
  min-height: 420px;
  display: flex;
  align-items: center;
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  opacity: 0.5;
  filter: contrast(1.15) saturate(0.8) brightness(0.7) hue-rotate(-8deg);
}

.page-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(255, 107, 26, 0.1) 0%, transparent 55%),
    linear-gradient(180deg,
      rgba(10, 14, 20, 0.6) 0%,
      rgba(10, 14, 20, 0.4) 40%,
      rgba(10, 14, 20, 0.85) 100%);
}

/* Page hero decorative grid */
.page-hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 56px 56px;
  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%);
  z-index: 1;
}

/* Page hero floating accent */
.page-hero-accent {
  position: absolute;
  top: 20%;
  right: 8%;
  width: 140px;
  height: 140px;
  border: 1px solid rgba(255, 107, 26, 0.2);
  border-radius: 50%;
  z-index: 1;
  pointer-events: none;
  animation: heroFloat 14s ease-in-out infinite;
}

.page-hero-accent::before {
  content: '';
  position: absolute;
  inset: 16px;
  border: 1px dashed rgba(0, 212, 255, 0.15);
  border-radius: 50%;
  animation: heroRotate 40s linear infinite;
}

/* Page hero stats bar */
.page-hero-stats {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  flex-wrap: wrap;
  position: relative;
}

.page-hero-stats::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-molten), transparent);
}

.page-hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-hero-stat-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-molten-light);
  line-height: 1;
}

.page-hero-stat-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.05em;
}

.page-hero-content {
  position: relative;
  z-index: 2;
}

.page-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 16px 6px 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-4);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}

.page-hero-badge::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 107, 26, 0.15), transparent);
  transform: translateX(-100%);
  animation: badgeShine 5s ease-in-out infinite;
}

.page-hero-badge-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background: linear-gradient(135deg, var(--color-molten), var(--color-ember));
  border-radius: 50%;
  font-size: 0.8125rem;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.15);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-muted-light);
  margin-bottom: var(--space-4);
}

.breadcrumb a:hover {
  color: var(--color-molten);
}

.breadcrumb .sep {
  opacity: 0.5;
}

.page-hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  margin-bottom: var(--space-3);
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
  line-height: 1.15;
}

.page-hero-desc {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 600px;
  line-height: 1.7;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
}

/* ============================================
   信息卡片网格
   ============================================ */
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.info-card {
  background: var(--color-surface-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(10, 14, 20, 0.04);
  transition: all var(--transition-base);
}

.info-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: rgba(255, 107, 26, 0.2);
}

.info-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255, 107, 26, 0.1), rgba(255, 107, 26, 0.05));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
}

.info-card-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-molten);
}

.info-card h4 {
  font-size: 1.125rem;
  margin-bottom: var(--space-2);
}

.info-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================
   图片文字分栏
   ============================================ */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}

.split-section.reverse .split-image {
  order: 2;
}

.split-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow-lg);
}

.split-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out);
}

.split-image:hover img {
  transform: scale(1.05);
}

.split-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(255, 107, 26, 0.1) 100%);
  pointer-events: none;
}

.split-content h2 {
  margin-bottom: var(--space-3);
}

.split-content p {
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: var(--space-3);
}

.feature-list {
  margin-top: var(--space-4);
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  font-size: 0.9375rem;
}

.feature-list svg {
  width: 20px;
  height: 20px;
  color: var(--color-molten);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ============================================
   联系页布局
   ============================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-8);
  align-items: start;
}

.contact-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-4));
}

/* ============================================
   表单
   ============================================ */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-group {
  margin-bottom: var(--space-4);
}

.form-group.full {
  grid-column: 1 / -1;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.form-label .required {
  color: var(--color-molten);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1.5px solid rgba(10, 14, 20, 0.1);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--color-surface-alt);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-molten);
  box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.1);
}

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

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* 上传区 */
.upload-zone {
  border: 2px dashed rgba(10, 14, 20, 0.15);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  text-align: center;
  transition: all var(--transition-base);
  cursor: pointer;
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--color-molten);
  background: rgba(255, 107, 26, 0.03);
}

.upload-zone svg {
  width: 40px;
  height: 40px;
  color: var(--color-molten);
  margin: 0 auto var(--space-2);
}

.upload-zone h5 {
  font-size: 0.9375rem;
  margin-bottom: var(--space-1);
}

.upload-zone p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ============================================
   设备展示
   ============================================ */
.equipment-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

.equipment-card {
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  border: 1px solid rgba(10, 14, 20, 0.06);
  transition: all var(--transition-base);
  text-align: center;
}

.equipment-card:hover {
  border-color: var(--color-molten);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.equipment-card .spec {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-molten);
  margin-bottom: var(--space-1);
}

.equipment-card .label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1024px) {
  .core-entries {
    grid-template-columns: 1fr;
    margin-top: var(--space-8);
  }

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

  .product-card.large {
    grid-column: span 2;
  }

  .process-flow {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }

  .process-flow::before {
    display: none;
  }

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

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

  .split-section {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .split-section.reverse .split-image {
    order: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .section {
    padding: var(--space-12) 0;
  }

  .hero {
    min-height: 100vh;
    padding: calc(var(--nav-height) + var(--space-6)) 0 var(--space-10);
  }

  /* Hide decorative accents on mobile to avoid clutter */
  .hero-accent-1 {
    width: 100px;
    height: 100px;
    top: 12%;
    right: 5%;
    opacity: 0.6;
  }

  .hero-accent-2 {
    width: 50px;
    height: 50px;
    bottom: 30%;
    right: 10%;
    opacity: 0.6;
  }

  .hero-accent-3 {
    display: none;
  }

  .page-hero-accent {
    width: 80px;
    height: 80px;
    top: 15%;
    right: 5%;
    opacity: 0.6;
  }

  .page-hero-stats {
    gap: var(--space-3);
    margin-top: var(--space-4);
  }

  .page-hero-stat-value {
    font-size: 1.125rem;
  }

  .page-hero-stat-label {
    font-size: 0.6875rem;
  }

  .hero-badge {
    font-size: 0.75rem;
    padding: 5px 12px 5px 6px;
  }

  .hero-badge-icon {
    width: 24px;
    height: 24px;
    font-size: 0.75rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-title .text-reveal-inner:first-child {
    font-size: 0.55em;
    letter-spacing: 0.08em;
  }

  .hero-desc {
    font-size: 0.9375rem;
    line-height: 1.65;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    padding: var(--space-4) 0;
  }

  .hero-stat-value {
    font-size: 1.5rem;
  }

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

  .product-card.large {
    grid-column: span 1;
  }

  .product-card {
    aspect-ratio: 16/10;
  }

  .process-flow {
    grid-template-columns: 1fr;
  }

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

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

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

  .contact-layout {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .contact-sidebar {
    position: static;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .compare-table {
    font-size: 0.8125rem;
  }

  .compare-table th,
  .compare-table td {
    padding: var(--space-3);
  }

  .marquee-item {
    font-size: 1.125rem;
  }

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .cert-bar {
    gap: var(--space-2);
  }

  .cert-badge {
    padding: var(--space-2) var(--space-3);
  }
}

@media (max-width: 480px) {
  .container,
  .container-wide {
    padding: 0 var(--space-3);
  }

  .hero-stats {
    grid-template-columns: 1fr 1fr;
  }

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

  .section-title {
    font-size: 1.75rem;
  }
}

/* ============================================
   无障碍 - 减少动画
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .hero-blob,
  .marquee-track,
  .hero-scroll-line::after {
    animation: none !important;
  }
}

/* ============================================
   焦点样式
   ============================================ */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-molten);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ============================================
   浮动咨询按钮
   ============================================ */
.float-consult {
  position: fixed;
  bottom: var(--space-5);
  right: var(--space-5);
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.float-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-molten);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-molten);
  transition: all var(--transition-base);
  position: relative;
}

.float-btn:hover {
  transform: scale(1.1);
  background: var(--color-molten-light);
}

.float-btn svg {
  width: 24px;
  height: 24px;
}

.float-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--color-molten);
  animation: ripple 2s ease-out infinite;
}

@keyframes ripple {
  0% { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(1.6); }
}

@media (max-width: 768px) {
  .float-consult {
    bottom: var(--space-3);
    right: var(--space-3);
  }

  .float-btn {
    width: 48px;
    height: 48px;
  }
}

/* ============================================
   V2 升级模块 - 增强动态效果
   ============================================ */

/* ---------- 滚动进度条 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 9999;
  background: transparent;
  pointer-events: none;
}

.scroll-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-molten), var(--color-ember), var(--color-cyan));
  box-shadow: 0 0 12px var(--color-molten);
  transition: width 0.1s linear;
}

/* ---------- 自定义光标 ---------- */
.custom-cursor {
  position: fixed;
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-molten);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease-out, width 0.25s ease-out, height 0.25s ease-out, border-color 0.25s, background 0.25s;
  mix-blend-mode: difference;
  display: none;
}

.custom-cursor-dot {
  position: fixed;
  width: 6px;
  height: 6px;
  background: var(--color-molten);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: opacity 0.2s;
  display: none;
}

@media (hover: hover) and (pointer: fine) {
  .custom-cursor,
  .custom-cursor-dot {
    display: block;
  }
  body {
    cursor: none;
  }
  a, button, input, select, textarea {
    cursor: none;
  }
}

.custom-cursor.hovering {
  width: 56px;
  height: 56px;
  background: rgba(255, 107, 26, 0.15);
  border-color: var(--color-ember);
}

/* ---------- 磁吸按钮增强 ---------- */
.btn-magnetic {
  position: relative;
  will-change: transform;
}

/* ---------- 文字逐字揭示 ---------- */
.text-reveal {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
}

h1.text-reveal,
h2.text-reveal,
.text-reveal-block {
  display: block;
  overflow: visible;
}

h1.text-reveal .text-reveal-inner,
h2.text-reveal .text-reveal-inner {
  display: block;
}

.text-reveal-inner {
  display: inline-block;
  transform: translateY(110%);
  transition: transform 0.8s var(--ease-out);
}

.text-reveal .text-reveal-inner {
  transition-delay: 0.05s;
}

.text-reveal .text-reveal-inner:nth-child(2) {
  transition-delay: 0.15s;
}

.text-reveal .text-reveal-inner:nth-child(3) {
  transition-delay: 0.25s;
}

.text-reveal .text-reveal-inner:nth-child(4) {
  transition-delay: 0.35s;
}

.reveal-text-active .text-reveal-inner,
.text-reveal.in-view .text-reveal-inner {
  transform: translateY(0);
}

/* ---------- 二列网格 (视频 + 仪表盘) ---------- */
.grid-2-1 {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-4);
  align-items: stretch;
}

.dashboard-stack {
  display: grid;
  gap: var(--space-3);
  grid-template-rows: 1fr 1fr 1fr;
}

.unit-sm {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-left: 4px;
}

/* ---------- 渐变边框卡片 ---------- */
.gradient-border {
  position: relative;
  background: var(--color-surface-alt);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.gradient-border::before {
  content: '';
  position: absolute;
  inset: 0;
  padding: 1px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--color-molten), var(--color-cyan));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.gradient-border:hover::before {
  opacity: 1;
}

/* ---------- 玻璃态卡片 V2 ---------- */
.glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
}

.glass-light {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(10, 14, 20, 0.06);
  border-radius: var(--radius-lg);
}

/* ---------- 客户端Logo墙 ---------- */
.logo-wall {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-4) 0;
}

.logo-item {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  border-right: 1px solid rgba(10, 14, 20, 0.08);
  padding: 0 var(--space-2);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  text-align: center;
  line-height: 1.2;
}

.logo-item:last-child {
  border-right: none;
}

.logo-item::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-molten), var(--color-cyan));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.logo-item:hover {
  color: var(--color-text);
  transform: scale(1.05);
}

.section-dark .logo-item {
  color: var(--color-text-muted-light);
  border-right-color: rgba(255, 255, 255, 0.06);
}

/* ---------- 数据仪表盘卡片 ---------- */
.metric-card {
  position: relative;
  padding: var(--space-5);
  background: var(--color-surface-alt);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(10, 14, 20, 0.04);
}

.metric-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 107, 26, 0.2);
}

.metric-card-glow {
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(255, 107, 26, 0.15), transparent 70%);
  filter: blur(40px);
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}

.metric-card:hover .metric-card-glow {
  opacity: 1;
}

.metric-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255, 107, 26, 0.15), rgba(0, 212, 255, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
  color: var(--color-molten);
}

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

.metric-value {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: var(--space-1);
  background: linear-gradient(135deg, var(--color-text), var(--color-iron));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.metric-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

.metric-trend {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: var(--space-2);
  padding: 2px 8px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
}

/* ---------- 案例时间线 ---------- */
.case-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.case-card {
  position: relative;
  background: var(--color-surface-alt);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 1px solid rgba(10, 14, 20, 0.04);
  z-index: 1;
}

.case-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-molten), var(--color-ember), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
  z-index: 3;
}

.case-card:hover::before {
  transform: scaleX(1);
}

.case-visual {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-void);
}

.case-visual > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out);
  opacity: 0.7;
}

.case-card:hover .case-visual > img {
  transform: scale(1.06);
  opacity: 0.85;
}

.case-visual .case-tag {
  z-index: 2;
}

.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(255, 107, 26, 0.2);
}

.case-image {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out);
}

.case-card:hover .case-image img {
  transform: scale(1.08);
}

.case-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10, 14, 20, 0.4) 100%);
  pointer-events: none;
}

.case-tag {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  padding: 4px 12px;
  background: rgba(10, 14, 20, 0.7);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-molten-light);
  letter-spacing: 0.05em;
  z-index: 2;
}

.case-arrow {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(10, 14, 20, 0.7);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  z-index: 2;
  transition: all var(--transition-base);
}

.case-card:hover .case-arrow {
  background: var(--color-molten);
  transform: translate(2px, -2px) rotate(-45deg);
}

.case-body {
  padding: var(--space-5);
}

.case-client {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  text-transform: uppercase;
  margin-bottom: var(--space-1);
}

.case-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
  line-height: 1.3;
}

.case-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-3);
}

.case-stats {
  display: flex;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid rgba(10, 14, 20, 0.06);
}

.case-stat {
  flex: 1;
}

.case-stat-value {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-molten);
  line-height: 1;
  margin-bottom: 2px;
}

.case-stat-label {
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---------- 视频展示 (沉浸式) ---------- */
.video-showcase {
  max-width: 1000px;
  margin: 0 auto;
}

.video-showcase-frame {
  position: relative;
  aspect-ratio: 16/9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  background: var(--color-void);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.video-showcase-frame > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s var(--ease-out);
  opacity: 0.8;
}

.video-showcase-frame:hover > img {
  transform: scale(1.04);
  opacity: 0.9;
}

.video-showcase-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(10, 14, 20, 0.2) 0%,
    rgba(10, 14, 20, 0.3) 50%,
    rgba(10, 14, 20, 0.8) 100%);
  pointer-events: none;
}

.video-showcase-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
}

.video-showcase-play-inner {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--color-molten);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: all 0.3s var(--ease-out);
  box-shadow: 0 8px 24px rgba(255, 107, 26, 0.4);
}

.video-showcase-play-inner svg {
  width: 28px;
  height: 28px;
  margin-left: 3px;
}

.video-showcase-frame:hover .video-showcase-play-inner {
  transform: scale(1.1);
  background: var(--color-ember);
}

.video-showcase-play-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--color-molten);
  opacity: 0.5;
  animation: videoRing 2s ease-out infinite;
}

@keyframes videoRing {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.5); opacity: 0; }
}

.video-showcase-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-5);
  z-index: 3;
}

.video-showcase-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(255, 107, 26, 0.9);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: white;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

.video-showcase-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: white;
  margin-bottom: var(--space-1);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.video-showcase-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.6);
}

.dot-sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
}

/* ---------- 数据条 ---------- */
.data-strip {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  margin-top: var(--space-6);
  padding: var(--space-5) var(--space-6);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

.data-strip-item {
  flex: 1;
  text-align: center;
  padding: 0 var(--space-3);
}

.data-strip-divider {
  width: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin: var(--space-1) 0;
}

.data-strip-value {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  font-weight: 700;
  color: white;
  line-height: 1;
  margin-bottom: var(--space-1);
}

.data-strip-label {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
  font-family: var(--font-mono);
  margin-bottom: var(--space-1);
}

.data-strip-trend {
  font-size: 0.6875rem;
  color: var(--color-molten-light);
  font-family: var(--font-mono);
}

/* ---------- 视频占位卡片 (旧 - 保留兼容) ---------- */
.video-poster {
  position: relative;
  aspect-ratio: 16/9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  background: var(--color-void);
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* ---------- 产品分类导航 (浅色背景适配) ---------- */
.category-nav {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  padding: var(--space-2) 0;
}

.category-nav-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface-alt);
  border: 1.5px solid rgba(10, 14, 20, 0.1);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.category-nav-item::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-molten);
  flex-shrink: 0;
  transition: all var(--transition-base);
}

.category-nav-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 107, 26, 0.08), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.category-nav-item:hover {
  border-color: var(--color-molten);
  color: var(--color-molten);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 107, 26, 0.12);
}

.category-nav-item:hover::before {
  transform: scale(1.4);
  box-shadow: 0 0 8px var(--color-molten);
}

.category-nav-item:hover::after {
  opacity: 1;
}

.category-nav-item span {
  position: relative;
  z-index: 1;
}

.video-poster > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out);
  opacity: 0.9;
}

.video-poster:hover > img {
  transform: scale(1.05);
  opacity: 0.85;
}

.video-poster-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 14, 20, 0.2) 0%, rgba(10, 14, 20, 0.6) 100%);
  pointer-events: none;
}

.video-poster::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(10, 14, 20, 0.85) 100%);
}

.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(255, 107, 26, 0.9);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  box-shadow: 0 0 0 0 rgba(255, 107, 26, 0.5);
  animation: playPulse 2.5s ease-out infinite;
  transition: transform 0.3s var(--ease-spring);
}

@keyframes playPulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 107, 26, 0.6); }
  70% { box-shadow: 0 0 0 24px rgba(255, 107, 26, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 107, 26, 0); }
}

.video-poster:hover .video-play-btn {
  transform: translate(-50%, -50%) scale(1.1);
  background: var(--color-molten);
}

.video-play-btn svg {
  width: 28px;
  height: 28px;
  color: white;
  margin-left: 4px;
}

.video-caption {
  position: absolute;
  bottom: var(--space-5);
  left: var(--space-5);
  right: var(--space-5);
  z-index: 2;
  color: var(--color-text-light);
}

.video-caption h4 {
  font-size: 1.25rem;
  margin-bottom: var(--space-1);
}

.video-caption p {
  font-size: 0.875rem;
  color: var(--color-text-muted-light);
}

.video-duration {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 2;
  padding: 4px 10px;
  background: rgba(10, 14, 20, 0.7);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: white;
}

/* ---------- 即时报价计算器 ---------- */
.quote-calculator {
  background: var(--color-void);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  color: var(--color-text-light);
  position: relative;
  overflow: hidden;
}

.quote-calculator::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 107, 26, 0.2), transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}

.quote-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  position: relative;
  z-index: 2;
}

.quote-field {
  position: relative;
}

.quote-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted-light);
  margin-bottom: var(--space-2);
}

.quote-field select,
.quote-field input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: var(--color-text-light);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
}

.quote-field select option {
  background: var(--color-void);
}

.quote-field select:focus,
.quote-field input:focus {
  outline: none;
  border-color: var(--color-molten);
  background: rgba(255, 107, 26, 0.05);
}

.quote-result {
  grid-column: 1 / -1;
  margin-top: var(--space-3);
  padding: var(--space-5);
  background: linear-gradient(135deg, rgba(255, 107, 26, 0.1), rgba(0, 212, 255, 0.05));
  border: 1px solid rgba(255, 107, 26, 0.3);
  border-radius: var(--radius-lg);
  text-align: center;
}

.quote-result-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--color-text-muted-light);
  text-transform: uppercase;
  margin-bottom: var(--space-1);
}

.quote-result-value {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-molten-light), var(--color-ember));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: var(--space-1);
}

.quote-result-hint {
  font-size: 0.8125rem;
  color: var(--color-text-muted-light);
}

/* ---------- 数字徽章 ---------- */
.number-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-molten);
  color: white;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  margin-right: var(--space-2);
  flex-shrink: 0;
}

/* ---------- Tab 切换组件 ---------- */
.tabs {
  display: flex;
  gap: var(--space-1);
  margin-bottom: var(--space-6);
  padding: 4px;
  background: rgba(10, 14, 20, 0.05);
  border-radius: var(--radius-full);
  width: fit-content;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
  white-space: nowrap;
  background: transparent;
}

.tab-btn:hover {
  color: var(--color-text);
}

.tab-btn.active {
  background: var(--color-void);
  color: var(--color-text-light);
  box-shadow: var(--shadow-md);
}

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

.section-dark .tab-btn {
  color: var(--color-text-muted-light);
}

.section-dark .tab-btn.active {
  background: var(--color-molten);
  color: white;
}

.tab-content {
  display: none;
  animation: tabFade 0.5s var(--ease-out);
}

.tab-content.active {
  display: block;
}

@keyframes tabFade {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 步骤指示器 (用于报价流程) ---------- */
.steps {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.step {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.step.active {
  color: var(--color-molten);
  font-weight: 500;
}

.step-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(10, 14, 20, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.step.active .step-num {
  background: var(--color-molten);
  color: white;
}

.step-sep {
  width: 24px;
  height: 1px;
  background: rgba(10, 14, 20, 0.1);
}

/* ---------- 悬浮提示气泡 ---------- */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  padding: 6px 10px;
  background: var(--color-void);
  color: var(--color-text-light);
  font-size: 0.75rem;
  white-space: nowrap;
  border-radius: var(--radius-sm);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-fast);
  z-index: 100;
}

.tooltip:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- 骨架屏 ---------- */
@keyframes skeletonShimmer {
  0% { background-position: -200px 0; }
  100% { background-position: 200px 0; }
}

.skeleton {
  background: linear-gradient(90deg, rgba(10,14,20,0.05) 0%, rgba(10,14,20,0.1) 50%, rgba(10,14,20,0.05) 100%);
  background-size: 400px 100%;
  animation: skeletonShimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

/* ---------- 加载条 ---------- */
.loading-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--color-void);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  transition: opacity 0.6s, visibility 0.6s;
}

.loading-bar.done {
  opacity: 0;
  visibility: hidden;
}

.loading-bar-fill {
  width: 240px;
  height: 2px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.loading-bar-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, var(--color-molten), transparent);
  animation: loadingSlide 1.5s ease-in-out infinite;
}

@keyframes loadingSlide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes metricSlide {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

.loading-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-molten);
  text-transform: uppercase;
}

/* ---------- 减少动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .custom-cursor,
  .custom-cursor-dot,
  .scroll-progress {
    display: none !important;
  }
  .text-reveal-inner {
    transform: none !important;
  }
}

/* ---------- 响应式调整 V2 ---------- */
@media (max-width: 1024px) {
  .logo-wall {
    grid-template-columns: repeat(3, 1fr);
  }

  .case-timeline {
    grid-template-columns: 1fr;
  }

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

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

  .grid-2-1 {
    grid-template-columns: 1fr;
  }

  .data-strip {
    flex-wrap: wrap;
    gap: var(--space-3);
  }

  .data-strip-item {
    flex: 1 1 40%;
  }

  .data-strip-divider {
    display: none;
  }

  .dashboard-stack {
    grid-template-rows: auto;
  }
}

@media (max-width: 768px) {
  .logo-wall {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }

  .logo-item {
    border-right: none;
    border-bottom: 1px solid rgba(10, 14, 20, 0.08);
    padding: var(--space-2);
    font-size: 0.75rem;
    height: 50px;
  }

  .quote-calculator {
    padding: var(--space-4);
  }

  .quote-result-value {
    font-size: 1.75rem;
  }

  .video-play-btn {
    width: 60px;
    height: 60px;
  }

  .video-play-btn svg {
    width: 20px;
    height: 20px;
  }

  .video-showcase-play {
    width: 60px;
    height: 60px;
  }

  .video-showcase-play-inner {
    width: 56px;
    height: 56px;
  }

  .video-showcase-play-inner svg {
    width: 22px;
    height: 22px;
  }

  .video-showcase-title {
    font-size: 1rem;
  }

  .video-showcase-info {
    padding: var(--space-3);
  }

  .data-strip {
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-4);
  }

  .data-strip-item {
    flex: 1 1 100%;
    padding: var(--space-2) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .data-strip-item:last-child {
    border-bottom: none;
  }

  .tabs {
    width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
  }

  .step-sep {
    display: none;
  }

  .steps {
    flex-wrap: wrap;
  }
}