/* ============================================================
   小牛哥无人机 · 企业官网 · 全站样式
   设计风格：极简科技风 · Apple级排版 · 浅色+蓝紫渐变 · 液态玻璃
   ============================================================ */

/* ─── CSS Design Tokens ─── */
:root {
  /* 主色系 — 蓝紫渐变（更饱和、更艳丽） */
  --blue:         #2563EB;
  --blue-dark:    #1D4ED8;
  --blue-light:   #4F8EF7;
  --violet:       #7C3AED;
  --violet-light: #9B6EF8;
  --cyan:         #06B6D4;
  --indigo:       #4F46E5;

  /* 渐变系统 */
  --grad-main:    linear-gradient(135deg, #3B6FED 0%, #8B5CF6 100%);
  --grad-vivid:   linear-gradient(135deg, #2563EB 0%, #7C3AED 60%, #A855F7 100%);
  --grad-soft:    linear-gradient(135deg, rgba(59,111,237,0.10) 0%, rgba(139,92,246,0.10) 100%);
  --grad-glow:    linear-gradient(135deg, rgba(59,111,237,0.22) 0%, rgba(139,92,246,0.22) 100%);
  --grad-bg:      linear-gradient(160deg, #F0F4FF 0%, #F5F0FF 50%, #EEF3FF 100%);
  --grad-card:    linear-gradient(145deg, rgba(255,255,255,0.95) 0%, rgba(245,243,255,0.90) 100%);
  --grad-section: linear-gradient(180deg, #F0F4FF 0%, #EDE8FF 100%);

  /* 背景 — 浅色蓝紫调 */
  --bg:         #F5F7FF;
  --bg-alt:     #EEF0FD;
  --bg-card:    #FFFFFF;
  --bg-tint:    #F0F3FF;
  --bg-dark:    #08091A;
  --bg-dark2:   #0D0F22;
  --bg-card-d:  #131728;

  /* 文字 */
  --text-h:     #0D1240;
  --text-body:  #3D4A72;
  --text-muted: #7B8AB8;
  --text-light: rgba(255,255,255,0.92);
  --text-dim:   rgba(255,255,255,0.52);
  --text-faint: rgba(255,255,255,0.28);

  /* 边框 */
  --border:     rgba(79,70,229,0.10);
  --border-md:  rgba(79,70,229,0.18);
  --border-d:   rgba(255,255,255,0.08);
  --border-b:   rgba(59,111,237,0.28);

  /* 液态玻璃 — 带蓝紫色调 */
  --glass-bg:      rgba(255,255,255,0.75);
  --glass-bg-t:    rgba(240,244,255,0.82);
  --glass-bg-d:    rgba(13,17,40,0.70);
  --glass-border:  rgba(180,170,255,0.40);
  --glass-border-d:rgba(255,255,255,0.10);
  --glass-blur:    saturate(200%) blur(28px);

  /* 尺寸 */
  --header-h:   72px;
  --section-v:  100px;
  --radius-sm:  8px;
  --radius:     16px;
  --radius-lg:  24px;
  --radius-xl:  32px;

  /* 阴影 — 蓝紫色调 */
  --shadow-sm:  0 1px 4px rgba(59,70,180,0.06), 0 1px 2px rgba(59,70,180,0.04);
  --shadow:     0 4px 18px rgba(59,70,180,0.09), 0 2px 6px rgba(59,70,180,0.05);
  --shadow-md:  0 8px 36px rgba(59,70,180,0.12), 0 4px 12px rgba(59,70,180,0.07);
  --shadow-lg:  0 20px 64px rgba(37,50,180,0.14), 0 8px 24px rgba(59,70,180,0.09);
  --shadow-blue:0 12px 40px rgba(37,99,235,0.24);
  --shadow-grad:0 12px 40px rgba(124,58,237,0.22);
  --shadow-card:0 2px 12px rgba(79,70,229,0.08), 0 0 0 1px rgba(79,70,229,0.06);

  /* 过渡 */
  --ease:       cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring:cubic-bezier(0.34, 1.56, 0.64, 1);
  --t-fast:     0.15s;
  --t:          0.30s;
  --t-slow:     0.55s;
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-h);
  background: var(--grad-bg);
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: color var(--t) var(--ease); }
img { display: block; max-width: 100%; height: auto; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul { list-style: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }
svg { fill: none; }

/* ─── Layout Utilities ─── */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}
.section { padding: var(--section-v) 0; }
.section--dark { background: var(--bg-dark); }
.section--alt  { background: var(--bg-alt); }
.section-cta {
  background: linear-gradient(135deg, #06082A 0%, #120832 50%, #0A0D28 100%);
  padding: 96px 0;
}
.bg-deep { background: var(--bg-dark2); }

/* ─── Typography Scale ─── */
.h-display {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.08;
}
.h1 {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.12;
}
.h2 {
  font-size: clamp(26px, 3.2vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.h3 { font-size: clamp(20px, 2vw, 26px); font-weight: 700; letter-spacing: -0.01em; }
.h4 { font-size: 18px; font-weight: 700; }
.body-lg { font-size: 18px; line-height: 1.75; }
.body { font-size: 16px; line-height: 1.7; }
.body-sm { font-size: 14px; line-height: 1.65; }
.caption { font-size: 12px; letter-spacing: 0.06em; }

/* ─── Section Header ─── */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-header--left { text-align: left; }
.section-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: var(--grad-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 14px;
  position: relative;
  padding: 0 16px;
}
.section-eyebrow::before,
.section-eyebrow::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 24px;
  height: 1.5px;
  background: var(--grad-main);
  opacity: 0.5;
}
.section-eyebrow::before { right: 100%; margin-right: -16px; }
.section-eyebrow::after  { left: 100%; margin-left: -16px; }
.section-header--left .section-eyebrow::before,
.section-header--left .section-eyebrow::after { display: none; }
.section-title {
  font-size: clamp(28px, 3.2vw, 40px);
  font-weight: 700;
  color: var(--text-h);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-title--light { color: var(--text-light); }
.section-desc {
  font-size: 16px;
  color: var(--text-body);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.8;
}
.section-desc--light { color: var(--text-dim); }
.section-header--left .section-desc { margin: 0; }
.section-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
}

/* ─── Gradient Text ─── */
.grad-text {
  background: var(--grad-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 100px;
  letter-spacing: 0.01em;
  transition: all var(--t) var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad-main);
  color: #fff;
  box-shadow: 0 4px 14px rgba(37,99,235,0.30);
}
.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 10px 28px rgba(37,99,235,0.40);
}
.btn-primary:active { transform: scale(0.98); }
.btn-ghost {
  background: var(--glass-bg);
  color: var(--text-h);
  border: 1.5px solid var(--border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.92);
  border-color: rgba(37,99,235,0.3);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}
.btn-ghost-dark {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border: 1.5px solid var(--glass-border-d);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.btn-ghost-dark:hover {
  background: rgba(255,255,255,0.14);
  border-color: rgba(255,255,255,0.25);
  transform: translateY(-1px);
}
.btn-sm { padding: 10px 22px; font-size: 13.5px; }
.btn-lg { padding: 16px 44px; font-size: 16px; }
.btn-white {
  background: #fff;
  color: var(--blue);
  box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0,0,0,0.25);
}
.btn-outline-white {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.4);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
  transform: translateY(-2px);
}

/* ─── Header ─── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-h);
}
.site-header .header-bg {
  position: absolute; inset: 0;
  background: rgba(240,244,255,0.0);
  backdrop-filter: saturate(200%) blur(0px);
  -webkit-backdrop-filter: saturate(200%) blur(0px);
  border-bottom: 1px solid transparent;
  transition: background var(--t-slow) var(--ease),
              backdrop-filter var(--t-slow) var(--ease),
              border-color var(--t-slow) var(--ease),
              box-shadow var(--t-slow) var(--ease);
}
.site-header.scrolled .header-bg {
  background: rgba(240,244,255,0.88);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom-color: var(--border);
  box-shadow: 0 1px 0 rgba(79,70,229,0.06), var(--shadow-sm);
}
.site-header.dark-header .header-bg {
  background: transparent;
}
.site-header.dark-header.scrolled .header-bg {
  background: rgba(12,13,16,0.90);
  border-bottom-color: var(--border-d);
}
.header-inner {
  position: relative;
  z-index: 1;
  height: var(--header-h);
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  gap: 0;
}
/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  margin-right: auto;
}
.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--grad-main);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(37,99,235,0.30);
}
.logo-mark svg { width: 20px; height: 20px; }
.logo-name {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.logo-cn {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-h);
  letter-spacing: -0.01em;
}
.site-header.dark-header .logo-cn,
.site-header.dark-header.scrolled .logo-cn { color: #fff; }
.logo-en {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  font-weight: 500;
  text-transform: uppercase;
}
.site-header.dark-header .logo-en { color: var(--text-faint); }

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
  margin-right: 24px;
}
.main-nav > ul {
  display: flex;
  align-items: center;
  gap: 2px;
}
.main-nav li { position: relative; }
.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-body);
  border-radius: var(--radius-sm);
  transition: all var(--t-fast) var(--ease);
}
.site-header.dark-header .nav-link { color: var(--text-dim); }
.site-header.dark-header.scrolled .nav-link { color: var(--text-dim); }
.nav-link:hover,
.nav-link.active { color: var(--blue); background: rgba(37,99,235,0.06); }
.site-header.dark-header .nav-link:hover,
.site-header.dark-header .nav-link.active,
.site-header.dark-header.scrolled .nav-link:hover,
.site-header.dark-header.scrolled .nav-link.active { color: #fff; background: rgba(255,255,255,0.08); }
.nav-link .caret { font-size: 9px; opacity: 0.5; transition: transform var(--t-fast); }
.has-sub:hover .caret { transform: rotate(180deg); }

/* Dropdown */
.has-sub { position: relative; }
.dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  min-width: 180px;
  background: var(--glass-bg-t);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 8px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease-out), visibility 0s 0.2s;
}
/* Bridge the gap between nav-link and dropdown */
.has-sub::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 8px;
}
.has-sub:hover .dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
  transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease-out), visibility 0s 0s;
}
.dropdown li a {
  display: block;
  padding: 9px 14px;
  font-size: 13.5px;
  color: var(--text-body);
  border-radius: var(--radius-sm);
  transition: all var(--t-fast);
  font-weight: 500;
}
.dropdown li a:hover {
  color: var(--blue);
  background: rgba(37,99,235,0.06);
}

/* Header CTA */
.header-cta {
  flex-shrink: 0;
  padding: 9px 22px;
  background: var(--grad-main);
  color: #fff;
  font-size: 13.5px;
  font-weight: 600;
  border-radius: 100px;
  box-shadow: 0 4px 12px rgba(37,99,235,0.28);
  transition: all var(--t) var(--ease-out);
}
.header-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(37,99,235,0.40);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  margin-left: 16px;
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-h);
  border-radius: 2px;
  transition: all var(--t);
}
.site-header.dark-header .hamburger span { background: #fff; }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0; bottom: 0;
  background: rgba(250,250,248,0.97);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  z-index: 999;
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
  opacity: 0;
  overflow-y: auto;
  transition: all var(--t) var(--ease-out);
}
.mobile-nav.open {
  display: block;
  transform: translateY(0);
  opacity: 1;
}
.mobile-nav > a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-h);
  border-bottom: 1px solid var(--border);
}
.mobile-nav > a:last-child { border-bottom: none; }
.mobile-nav > a:hover { color: var(--blue); }
/* Mobile sub-menu */
.mobile-nav .mobile-sub {
  display: none;
  padding: 0 0 8px 20px;
  border-bottom: 1px solid var(--border);
}
.mobile-nav .mobile-sub.open { display: block; }
.mobile-nav .mobile-sub a {
  display: block;
  padding: 10px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-body);
  border-bottom: 1px solid var(--border);
}
.mobile-nav .mobile-sub a:last-child { border-bottom: none; }
.mobile-nav .mobile-sub a:hover { color: var(--blue); }
.mobile-nav .mobile-caret {
  font-size: 14px;
  transition: transform var(--t-fast);
  color: var(--text-muted);
}
.mobile-nav .mobile-caret.open { transform: rotate(180deg); }

/* ─── Hero — Dark Video/Canvas Banner ─── */
.hero {
  position: relative;
  height: 100vh;
  min-height: 680px;
  background: var(--bg-dark);
  display: flex;
  align-items: center;
  overflow: hidden;
}
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(12,13,16,0.88) 0%,
    rgba(12,13,16,0.60) 50%,
    rgba(12,13,16,0.20) 100%
  );
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  padding: 6px 16px 6px 8px;
  border: 1px solid rgba(6,182,212,0.30);
  border-radius: 100px;
  background: rgba(6,182,212,0.08);
  margin-bottom: 28px;
  animation: fadeSlideUp 0.8s var(--ease-out) both 0.2s;
}
.hero-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  animation: pulse-dot 2s ease infinite;
}
.hero-title {
  font-size: clamp(44px, 6vw, 72px);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin-bottom: 24px;
  animation: fadeSlideUp 0.8s var(--ease-out) both 0.35s;
}
.hero-title .line-accent {
  display: block;
  background: linear-gradient(135deg, #60A5FA 0%, #A78BFA 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 18px;
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 520px;
  animation: fadeSlideUp 0.8s var(--ease-out) both 0.5s;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeSlideUp 0.8s var(--ease-out) both 0.65s;
}
/* Hero Scroll Indicator */
.hero-scroll {
  position: absolute;
  bottom: 140px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: fadeIn 1s var(--ease-out) both 1.2s;
}
.scroll-mouse {
  width: 26px; height: 40px;
  border: 2px solid rgba(255,255,255,0.30);
  border-radius: 13px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}
.scroll-wheel {
  width: 4px; height: 8px;
  background: #fff;
  border-radius: 2px;
  animation: scrollWheel 1.8s ease infinite;
}
.scroll-text { font-size: 10px; color: var(--text-faint); letter-spacing: 0.12em; }

/* Hero Slider Controls */
.hero-controls {
  position: absolute;
  bottom: 200px;
  right: 60px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.hero-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--text-faint);
  cursor: pointer;
  transition: all var(--t);
}
.hero-dot.active {
  background: #fff;
  height: 28px;
  border-radius: 4px;
}
/* Hero Slides */
.h-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.9s ease;
}
.h-slide.active {
  opacity: 1;
  pointer-events: auto;
}
/* Slide background image layer — replace SVG with real photo later */
.slide-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.slide-bg svg,
.slide-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
/* Darken overlay on top of each slide bg (particles + this overlay = layered depth) */
.slide-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(8,10,18,0.72) 0%,
    rgba(12,16,32,0.45) 50%,
    rgba(8,10,18,0.60) 100%
  );
  z-index: 1;
}
/* Ensure slide content sits above bg layer */
.h-slide .container {
  position: relative;
  z-index: 2;
}
/* Hero Stats Strip */
.hero-stats {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  z-index: 5;
  background: rgba(12,13,16,0.80);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-d);
}
.stats-inner {
  display: flex;
  align-items: stretch;
  justify-content: center;
  max-width: 900px;
  margin: 0 auto;
}
.stat-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 20px;
  position: relative;
}
.stat-item + .stat-item::before {
  content: '';
  position: absolute;
  left: 0; top: 20%; height: 60%;
  width: 1px;
  background: var(--border-d);
}
.stat-num {
  font-size: 36px;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stat-unit { font-size: 20px; color: var(--blue-light); font-weight: 700; }
.stat-label {
  font-size: 12px;
  color: var(--text-faint);
  margin-top: 5px;
  letter-spacing: 0.05em;
}

/* ─── Counter (animated numbers) ─── */
.counter {
  font-variant-numeric: tabular-nums;
}

/* ─── Glass Cards ─── */
.glass-card {
  background: var(--glass-bg-t);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.glass-card-dark {
  background: var(--glass-bg-d);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border-d);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

/* ─── Products/Services Grid ─── */
.services-section { background: var(--bg); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.service-card {
  position: relative;
  padding: 32px 28px 28px;
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--t) var(--ease-out);
  cursor: default;
  box-shadow: var(--shadow-card);
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-main);
  opacity: 0;
  transition: opacity var(--t);
}
.service-card:hover {
  border-color: rgba(79,70,229,0.25);
  box-shadow: var(--shadow-md), 0 0 0 1.5px rgba(79,70,229,0.12);
  transform: translateY(-4px);
}
.service-card:hover::before { opacity: 1; }
.service-card.featured {
  background: linear-gradient(145deg, #080C2A 0%, #0F1545 100%);
  border-color: rgba(79,70,229,0.30);
}
.service-card.featured::before { opacity: 1; }
.service-card.featured .service-title,
.service-card.featured .service-desc,
.service-card.featured .service-link { color: #fff; }
.service-card.featured .service-desc { color: var(--text-dim); }
.service-card.featured .service-link { color: rgba(99,170,255,0.9); }
.service-icon-wrap {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--grad-soft);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 22px;
  transition: transform var(--t) var(--ease-spring);
}
.service-card:hover .service-icon-wrap { transform: scale(1.08) rotate(-3deg); }
.service-icon-wrap svg { width: 24px; height: 24px; stroke: var(--blue); stroke-width: 1.8; }
.service-card.featured .service-icon-wrap {
  background: rgba(37,99,235,0.15);
}
.service-card.featured .service-icon-wrap svg { stroke: #60A5FA; }
.service-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-h);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.service-desc {
  font-size: 13.5px;
  color: var(--text-body);
  line-height: 1.75;
  margin-bottom: 20px;
  flex: 1;
}
.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}
.service-tag {
  font-size: 11.5px;
  padding: 3px 10px;
  background: var(--grad-soft);
  color: var(--blue);
  border-radius: 100px;
  font-weight: 600;
}
.service-card.featured .service-tag {
  background: rgba(37,99,235,0.15);
  color: #93C5FD;
}
.service-link {
  font-size: 13px;
  font-weight: 700;
  color: var(--blue);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--t-fast);
}
.service-card:hover .service-link { gap: 8px; }
.service-badge {
  position: absolute;
  top: 16px; right: 16px;
  font-size: 10.5px;
  font-weight: 700;
  padding: 3px 10px;
  background: var(--grad-main);
  color: #fff;
  border-radius: 100px;
  letter-spacing: 0.04em;
}

/* ─── Advantages ─── */
.advantages-section { background: var(--bg-dark2); }
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(79,70,229,0.15);
  border: 1px solid rgba(79,70,229,0.18);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.adv-item {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 40px 36px;
  background: var(--bg-dark2);
  transition: background var(--t);
}
.adv-item:hover { background: rgba(79,70,229,0.07); }
.adv-num {
  font-size: 56px;
  font-weight: 800;
  line-height: 1;
  background: var(--grad-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.2;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
  transition: opacity var(--t);
}
.adv-item:hover .adv-num { opacity: 0.5; }
.adv-content {}
.adv-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(37,99,235,0.12);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.adv-icon svg { width: 22px; height: 22px; stroke: #60A5FA; stroke-width: 1.8; }
.adv-title {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.adv-desc {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.8;
}
.adv-stats {
  display: flex;
  gap: 24px;
  margin-top: 16px;
}
.adv-stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--blue-light);
  line-height: 1;
}
.adv-stat-unit { font-size: 14px; color: var(--text-faint); margin-left: 2px; }
.adv-stat-label { font-size: 12px; color: var(--text-faint); }

/* ─── Solutions ─── */
.solutions-section { background: var(--bg); }
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.solution-card {
  position: relative;
  padding: 28px 24px;
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--t) var(--ease-out);
  cursor: pointer;
  box-shadow: var(--shadow-card);
}
.solution-card:hover {
  border-color: rgba(79,70,229,0.28);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.solution-card-num {
  font-size: 42px;
  font-weight: 800;
  background: var(--grad-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.12;
  position: absolute;
  top: 12px; right: 16px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  transition: opacity var(--t);
}
.solution-card:hover .solution-card-num { opacity: 0.25; }
.solution-icon-box {
  width: 48px; height: 48px;
  border-radius: 14px;
  background: var(--grad-soft);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.solution-icon-box svg { width: 22px; height: 22px; stroke: var(--blue); stroke-width: 1.8; }
.solution-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-h);
  margin-bottom: 8px;
}
.solution-card-desc {
  font-size: 13px;
  color: var(--text-body);
  line-height: 1.7;
}

/* ─── Cases / Showcase ─── */
.cases-section { background: var(--bg-dark); }
.case-filter-bar {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.filter-btn {
  padding: 8px 20px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-dim);
  border: 1px solid var(--border-d);
  border-radius: 100px;
  transition: all var(--t-fast);
  cursor: pointer;
}
.filter-btn:hover { color: #fff; border-color: rgba(255,255,255,0.25); }
.filter-btn.active {
  background: var(--grad-main);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(37,99,235,0.3);
}
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.case-card {
  background: var(--bg-card-d);
  border: 1px solid var(--border-d);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--t) var(--ease-out);
  cursor: pointer;
}
.case-card:hover {
  transform: translateY(-5px);
  border-color: rgba(37,99,235,0.35);
  box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}
.case-thumb {
  height: 210px;
  position: relative;
  overflow: hidden;
}
.case-thumb-inner {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
.case-thumb::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(12,13,16,0.7) 0%, transparent 60%);
}
/* Case thumb gradient backgrounds */
.ct-oblique  { background: linear-gradient(135deg, #0A1628 0%, #1A3A6A 100%); }
.ct-ortho    { background: linear-gradient(135deg, #071A0C 0%, #0F3020 100%); }
.ct-3d       { background: linear-gradient(135deg, #080D1A 0%, #0C2235 100%); }
.ct-bim      { background: linear-gradient(135deg, #140C22 0%, #261548 100%); }
.ct-heritage { background: linear-gradient(135deg, #1A0E06 0%, #321C0A 100%); }
/* SVG pattern overlay for case thumbs */
.ct-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.12) 1px, transparent 1px);
  background-size: 24px 24px;
}
.ct-scan {
  position: absolute; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(6,182,212,0.8), transparent);
  animation: scanLine 2.8s linear infinite;
}
.ct-label {
  position: absolute;
  bottom: 14px; left: 14px;
  z-index: 2;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #fff;
  background: rgba(37,99,235,0.85);
  padding: 4px 12px;
  border-radius: 100px;
  backdrop-filter: blur(8px);
}
.case-info {
  padding: 20px 22px;
}
.case-info h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
  line-height: 1.4;
}
.case-info p {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 12px;
}
.case-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11.5px;
  color: var(--text-faint);
}
.case-meta-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--text-faint); }

/* ─── Partners ─── */
.partners-section { background: var(--bg-tint); padding: 64px 0; }
.partners-track { overflow: hidden; mask-image: linear-gradient(to right, transparent, black 12%, black 88%, transparent); }
.partners-belt { display: flex; gap: 0; width: max-content; animation: beltScroll 30s linear infinite; }
.partner-item {
  min-width: 180px;
  height: 64px;
  display: flex; align-items: center; justify-content: center;
  padding: 0 32px;
  border-right: 1px solid var(--border);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  transition: color var(--t);
  white-space: nowrap;
}
.partner-item:hover { color: var(--text-h); }
.partners-belt:hover { animation-play-state: paused; }

/* ─── News ─── */
.news-section { background: var(--bg); }
.news-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: start;
}
.news-featured-card {
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow var(--t), transform var(--t);
}
.news-featured-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.news-img {
  height: 240px;
  position: relative;
  background: linear-gradient(135deg, #0A1628 0%, #1A3A6A 100%);
  overflow: hidden;
}
.news-img-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.08) 1px, transparent 1px);
  background-size: 30px 30px;
}
.news-img-badge {
  position: absolute; bottom: 16px; left: 16px;
  background: var(--grad-main);
  color: #fff;
  font-size: 11.5px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 100px;
}
.news-body { padding: 24px; }
.news-cat {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 10px;
}
.news-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-h);
  line-height: 1.4;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.news-excerpt {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.75;
  margin-bottom: 16px;
}
.news-read-more {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--blue);
  display: flex;
  align-items: center;
  gap: 4px;
}
.news-list-col {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.news-row {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 16px;
  align-items: start;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  transition: background var(--t-fast);
}
.news-row:last-child { border-bottom: none; }
.news-row:hover { background: rgba(37,99,235,0.02); }
.news-date-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-alt);
  border-radius: var(--radius-sm);
  padding: 8px 4px;
  flex-shrink: 0;
}
.news-day { font-size: 22px; font-weight: 800; color: var(--text-h); line-height: 1; }
.news-mon { font-size: 10px; color: var(--text-muted); margin-top: 2px; letter-spacing: 0.05em; }
.news-row-cat { font-size: 10.5px; font-weight: 700; color: var(--blue); text-transform: uppercase; letter-spacing: 0.07em; margin-bottom: 4px; }
.news-row-title { font-size: 14px; font-weight: 600; color: var(--text-h); line-height: 1.45; }
.news-row-desc { font-size: 12.5px; color: var(--text-muted); margin-top: 4px; line-height: 1.55; }
/* News List Items (full page) */
.news-list-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  align-items: start;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  transition: background var(--t-fast);
}
.news-list-item:last-child { border-bottom: none; }
.news-list-item:hover { background: rgba(37,99,235,0.02); }
.news-list-content { display: flex; flex-direction: column; gap: 6px; }

/* ─── CTA Band ─── */
.cta-section { background: var(--bg); padding-bottom: 80px; }
.cta-band {
  background: linear-gradient(135deg, #07093A 0%, #100A40 50%, #06082E 100%);
  border: 1px solid rgba(79,70,229,0.25);
  border-radius: var(--radius-xl);
  padding: 72px 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79,70,229,0.18) 0%, transparent 70%);
  pointer-events: none;
}
.cta-band::after {
  content: '';
  position: absolute;
  bottom: -100px; left: 30%;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139,92,246,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.cta-text h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
  line-height: 1.2;
}
.cta-text p {
  font-size: 15px;
  color: var(--text-dim);
  max-width: 440px;
  line-height: 1.8;
}
.cta-actions {
  display: flex;
  gap: 14px;
  flex-shrink: 0;
}

/* ─── Footer ─── */
.footer {
  background: var(--bg-dark);
  border-top: 1px solid var(--border-d);
  padding: 72px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 56px;
}
.footer-slogan {
  font-size: 12.5px;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  margin-top: 12px;
  margin-bottom: 14px;
}
.footer-desc {
  font-size: 13.5px;
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 22px;
}
.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}
.footer-social a {
  width: 38px; height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-d);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim);
  transition: all var(--t-fast);
}
.footer-social a:hover {
  color: #fff; border-color: var(--blue);
  background: rgba(37,99,235,0.12);
}
.footer-brand .logo { margin-bottom: 16px; }
.site-footer {
  background: var(--bg-dark);
  border-top: 1px solid var(--border-d);
  padding: 72px 0 0;
}
.footer-main {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 56px;
}
.footer-brand {}
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.footer-tagline { font-size: 12.5px; color: var(--text-dim); letter-spacing: 0.04em; margin-bottom: 14px; }
.footer-about { font-size: 13.5px; color: var(--text-dim); line-height: 1.8; margin-bottom: 22px; }
.footer-social { display: flex; gap: 10px; }
.social-btn {
  width: 38px; height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-d);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim);
  font-size: 16px;
  transition: all var(--t-fast);
}
.social-btn:hover { color: #fff; border-color: var(--blue); background: rgba(37,99,235,0.12); }
.footer-col h5 {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-bottom: 20px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col li a {
  font-size: 13.5px;
  color: var(--text-dim);
  transition: color var(--t-fast);
}
.footer-col li a:hover { color: #fff; }
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: var(--text-dim);
  margin-bottom: 14px;
  line-height: 1.6;
}
.fc-icon { color: var(--blue-light); flex-shrink: 0; }
.footer-qr {
  width: 96px; height: 96px;
  background: #fff;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: #bbb;
  font-size: 10.5px;
  text-align: center;
  padding: 8px;
}
.footer-bottom {
  border-top: 1px solid var(--border-d);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-bottom p { font-size: 13px; color: var(--text-faint); }
.footer-bottom a { color: var(--text-faint); transition: color var(--t-fast); }
.footer-bottom a:hover { color: var(--text-dim); }
.footer-legal { display: flex; gap: 16px; }

/* ─── Page Hero (inner pages) ─── */
.page-hero {
  background: var(--bg-dark);
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
  text-align: center;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(79,70,229,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,70,229,0.05) 1px, transparent 1px);
  background-size: 48px 48px;
}
.page-hero-glow {
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 400px;
  background: radial-gradient(ellipse, rgba(79,70,229,0.20) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero-content { position: relative; z-index: 2; }
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 20px;
}
.breadcrumb a, .breadcrumb span { font-size: 13px; color: var(--text-faint); }
.breadcrumb a:hover { color: var(--text-dim); }
.bc-sep { color: var(--text-faint); font-size: 10px; }
.bc-current { color: rgba(255,255,255,0.7); }
.page-hero h1 {
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.025em;
  margin-bottom: 14px;
  line-height: 1.15;
}
.page-hero p {
  font-size: 17px;
  color: var(--text-dim);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ─── Service Detail Cards ─── */
.svc-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.svc-detail-card {
  background: var(--bg-card-d);
  border: 1px solid var(--border-d);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  overflow: hidden;
  transition: all var(--t) var(--ease-out);
}
.svc-detail-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad-main);
  opacity: 0;
  transition: opacity var(--t);
}
.svc-detail-card:hover {
  transform: translateY(-4px);
  border-color: rgba(37,99,235,0.3);
  box-shadow: 0 20px 48px rgba(0,0,0,0.35);
}
.svc-detail-card:hover::before { opacity: 1; }
.svc-icon-ring {
  width: 56px; height: 56px;
  border-radius: 16px;
  border: 1.5px solid rgba(37,99,235,0.3);
  background: rgba(37,99,235,0.08);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 24px;
}
.svc-icon-ring svg { width: 26px; height: 26px; stroke: #60A5FA; stroke-width: 1.6; }
.svc-detail-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.svc-detail-card p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 22px;
}
.svc-feature-list { display: flex; flex-direction: column; gap: 8px; }
.svc-feature-list li {
  display: flex; align-items: center; gap: 8px;
  font-size: 13.5px;
  color: var(--text-dim);
}
.svc-feature-list li::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--blue-light);
  flex-shrink: 0;
}

/* ─── Process Steps ─── */
.process-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  position: relative;
}
.process-steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: calc(100% / 6 / 2);
  right: calc(100% / 6 / 2);
  height: 1px;
  background: linear-gradient(to right, var(--blue), var(--violet));
  opacity: 0.3;
  z-index: 0;
}
.step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 14px;
  position: relative;
  z-index: 1;
}
.step-num {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--grad-main);
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 20px rgba(37,99,235,0.4);
  flex-shrink: 0;
}
.step-label { font-size: 14px; font-weight: 700; color: var(--text-h); }
.step-desc { font-size: 12.5px; color: var(--text-muted); line-height: 1.55; }

/* ─── Product Detail (products page) ─── */
.product-detail-section {
  padding: 80px 0;
}
.product-detail-section:nth-child(even) { background: var(--bg-alt); }
.product-detail-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.product-detail-layout.reverse { direction: rtl; }
.product-detail-layout.reverse > * { direction: ltr; }
.product-visual {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--bg-dark);
}
.product-visual-inner {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
.pv-oblique { background: linear-gradient(135deg, #081020 0%, #102040 100%); }
.pv-ortho   { background: linear-gradient(135deg, #06100A 0%, #0E2818 100%); }
.pv-3d      { background: linear-gradient(135deg, #08101C 0%, #0C2034 100%); }
.pv-bim     { background: linear-gradient(135deg, #100C20 0%, #201438 100%); }
.pv-heritage{ background: linear-gradient(135deg, #180E06 0%, #2E1C0A 100%); }
.pv-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,0.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.10) 1px, transparent 1px);
  background-size: 32px 32px;
}
.pv-scan {
  position: absolute; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  animation: scanLine 3s linear infinite;
}
.product-info {}
.product-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 16px;
  padding: 5px 14px;
  background: var(--grad-soft);
  border-radius: 100px;
}
.product-info h2 {
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 800;
  color: var(--text-h);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.2;
}
.product-info .lead {
  font-size: 16px;
  color: var(--text-body);
  line-height: 1.8;
  margin-bottom: 28px;
}
.product-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 28px;
}
.spec-item {
  padding: 16px;
  background: var(--bg-alt);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.spec-value { font-size: 22px; font-weight: 800; color: var(--blue); line-height: 1; }
.spec-unit  { font-size: 12px; color: var(--text-muted); }
.spec-label { font-size: 12.5px; color: var(--text-body); margin-top: 4px; }
.product-features { display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.product-feature {
  display: flex; align-items: center; gap: 10px;
  font-size: 14.5px; color: var(--text-h);
}
.pf-check {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--grad-soft);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.pf-check svg { width: 11px; height: 11px; stroke: var(--blue); stroke-width: 3; }

/* ─── Solutions Page ─── */
.solution-card-lg {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: box-shadow var(--t);
  margin-bottom: 24px;
}
.solution-card-lg:hover { box-shadow: var(--shadow-md); }
.solution-card-lg.alt { direction: rtl; }
.solution-card-lg.alt > * { direction: ltr; }
.sol-visual {
  position: relative;
  overflow: hidden;
  min-height: 320px;
}
.sol-info { padding: 48px 44px; display: flex; flex-direction: column; justify-content: center; }
.sol-eyebrow {
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 14px;
}
.sol-info h3 {
  font-size: 28px; font-weight: 800;
  color: var(--text-h); letter-spacing: -0.02em;
  margin-bottom: 14px; line-height: 1.2;
}
.sol-intro {
  font-size: 15px; color: var(--text-body);
  line-height: 1.8; margin-bottom: 24px;
}
.sol-features { display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.sol-feature {
  display: flex; align-items: center; gap: 10px;
  font-size: 14px; color: var(--text-h);
}
.sf-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--grad-main);
  flex-shrink: 0;
}
.sol-industries {
  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px;
}
.industry-tag {
  font-size: 12px; font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
  border: 1px solid var(--border-b);
  color: var(--blue);
  background: var(--grad-soft);
}

/* ─── About Page ─── */
.about-intro-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 80px;
}
.about-visual {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--bg-dark);
  position: relative;
}
.about-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.about-stat {
  padding: 24px;
  background: var(--bg-alt);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}
.about-stat-num { font-size: 36px; font-weight: 800; color: var(--blue); line-height: 1; }
.about-stat-unit { font-size: 18px; color: var(--violet); font-weight: 700; }
.about-stat-label { font-size: 13px; color: var(--text-body); margin-top: 6px; }
.honor-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.honor-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 20px;
  text-align: center;
  transition: all var(--t);
}
.honor-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.honor-icon {
  width: 64px; height: 64px;
  margin: 0 auto 16px;
  border-radius: 18px;
  background: var(--grad-soft);
  display: flex; align-items: center; justify-content: center;
}
.honor-icon svg { width: 30px; height: 30px; stroke: var(--blue); stroke-width: 1.5; }
.honor-title { font-size: 15px; font-weight: 700; color: var(--text-h); margin-bottom: 6px; }
.honor-desc  { font-size: 12.5px; color: var(--text-muted); line-height: 1.6; }
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.team-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--t);
}
.team-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.team-avatar {
  height: 180px;
  background: linear-gradient(135deg, #0A1628, #1A3A6A);
  display: flex; align-items: center; justify-content: center;
  font-size: 48px;
  font-weight: 800;
  color: rgba(37,99,235,0.4);
}
.team-info { padding: 18px; }
.team-name { font-size: 16px; font-weight: 700; color: var(--text-h); margin-bottom: 4px; }
.team-role { font-size: 13px; color: var(--blue); font-weight: 600; margin-bottom: 6px; }
.team-bio  { font-size: 12.5px; color: var(--text-muted); line-height: 1.6; }
.env-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.env-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 240px;
  background: linear-gradient(135deg, #0A1628, #1A2A4A);
  position: relative;
  transition: transform var(--t);
}
.env-card:hover { transform: scale(1.02); }
.env-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 16px 20px;
  background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
  font-size: 14px;
  font-weight: 600;
  color: #fff;
}

/* ─── Contact Page ─── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}
.contact-info.glass-card,
.contact-form-wrap.glass-card {
  padding: 44px;
}
.contact-info h2, .contact-form-wrap h2 {
  font-size: 22px; font-weight: 800; margin-bottom: 8px;
}
.contact-info > p {
  font-size: 14.5px; color: var(--text-body);
  line-height: 1.8; margin-bottom: 32px;
}
.ci-row {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}
.ci-row:last-of-type { border-bottom: none; }
.ci-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--grad-soft);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  color: var(--blue);
}
.ci-text h4 {
  font-size: 14px; font-weight: 700;
  color: var(--text-h); margin-bottom: 4px;
}
.ci-text p {
  font-size: 13.5px; color: var(--text-body);
  line-height: 1.7;
}
.contact-info-card {
  background: var(--bg-dark2);
  border: 1px solid var(--border-d);
  border-radius: var(--radius-xl);
  padding: 44px;
}
.contact-info-card h3 {
  font-size: 22px; font-weight: 800;
  color: #fff; margin-bottom: 8px;
}
.contact-info-card > p {
  font-size: 14.5px; color: var(--text-dim);
  line-height: 1.8; margin-bottom: 36px;
}
.contact-items { display: flex; flex-direction: column; gap: 20px; margin-bottom: 36px; }
.contact-item {
  display: flex; gap: 16px; align-items: flex-start;
}
.ci-icon-box {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(37,99,235,0.12);
  border: 1px solid rgba(37,99,235,0.2);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.ci-icon-box svg { width: 20px; height: 20px; stroke: #60A5FA; stroke-width: 1.8; }
.ci-label { font-size: 11.5px; color: var(--text-faint); margin-bottom: 4px; letter-spacing: 0.06em; text-transform: uppercase; font-weight: 600; }
.ci-value { font-size: 15px; color: #fff; font-weight: 600; }
.ci-sub   { font-size: 13px; color: var(--text-dim); margin-top: 2px; }
.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 44px;
  box-shadow: var(--shadow);
}
.contact-form-card h3 {
  font-size: 22px; font-weight: 800;
  color: var(--text-h); margin-bottom: 8px;
}
.contact-form-card > p {
  font-size: 14.5px; color: var(--text-body);
  line-height: 1.8; margin-bottom: 32px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 13px; font-weight: 700;
  color: var(--text-h); margin-bottom: 8px; letter-spacing: 0.01em;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-alt);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 14.5px;
  color: var(--text-h);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
  outline: none;
}
.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394A3B8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
  background: #fff;
}
.form-group input::placeholder, .form-group textarea::placeholder {
  color: var(--text-muted);
}
.form-group textarea {
  resize: vertical; min-height: 130px; line-height: 1.65;
}
.form-submit {
  width: 100%;
  padding: 15px 32px;
  background: var(--grad-main);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(37,99,235,0.30);
  transition: all var(--t) var(--ease-out);
}
.form-submit:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(37,99,235,0.40); }
.form-submit:active { transform: scale(0.98); }
.map-card {
  background: var(--bg-dark2);
  border-radius: var(--radius-xl);
  overflow: hidden;
  height: 320px;
  margin-top: 40px;
  position: relative;
}
.map-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, #0A1020, #121A2A);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.map-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.08) 1px, transparent 1px);
  background-size: 32px 32px;
}
.map-marker {
  position: relative; z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
}
.map-pin {
  width: 48px; height: 48px;
  background: var(--grad-main);
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  box-shadow: 0 6px 20px rgba(37,99,235,0.5);
  display: flex; align-items: center; justify-content: center;
}
.map-pin svg { transform: rotate(45deg); width: 22px; height: 22px; stroke: #fff; stroke-width: 2; }
.map-label { font-size: 13px; font-weight: 700; color: rgba(255,255,255,0.8); }
/* ─── FAQ Accordion ─── */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--t);
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-q, .faq-question {
  width: 100%;
  padding: 18px 22px;
  text-align: left;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  transition: background var(--t-fast);
}
.faq-q:hover, .faq-question:hover { background: rgba(37,99,235,0.04); }
.faq-q.open, .faq-question.open { color: var(--blue); }
.faq-arrow, .faq-chevron { font-size: 16px; transition: transform var(--t); flex-shrink: 0; }
.faq-q.open .faq-arrow, .faq-question.open .faq-chevron { transform: rotate(180deg); }
.faq-a, .faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
}
.faq-a.open, .faq-answer.open { max-height: 500px; }
.faq-a-inner {
  padding: 0 22px 18px;
  font-size: 14.5px;
  color: var(--text-body);
  line-height: 1.8;
}
.faq-answer p, .faq-answer ul {
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.8;
}
.faq-answer ul {
  padding-left: 20px;
  margin: 8px 0;
}
.faq-answer ul li {
  list-style: disc;
  margin-bottom: 4px;
}

/* ─── Reveal Animations ─── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-24px);
  transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right {
  opacity: 0;
  transform: translateX(24px);
  transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }
.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }
.delay-4 { transition-delay: 0.32s; }
.delay-5 { transition-delay: 0.40s; }
.delay-6 { transition-delay: 0.48s; }

/* ─── Keyframe Animations ─── */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes scrollWheel {
  0%   { opacity: 1; transform: translateY(0); }
  70%  { opacity: 0; transform: translateY(10px); }
  100% { opacity: 0; transform: translateY(10px); }
}
@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%  { transform: scale(1.5); opacity: 0.6; }
}
@keyframes scanLine {
  0%   { top: 10%; opacity: 1; }
  85%  { opacity: 1; }
  100% { top: 90%; opacity: 0; }
}
@keyframes beltScroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
@keyframes gridFloat {
  0%, 100% { opacity: 0.5; }
  50%  { opacity: 1; }
}
@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50%  { transform: translateY(-12px); }
}

/* ─── Utilities ─── */
.text-center { text-align: center; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.mt-56 { margin-top: 56px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-32 { margin-bottom: 32px; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.view-all {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 700; color: var(--blue);
  transition: gap var(--t-fast);
}
.view-all:hover { gap: 10px; }

/* ─── Responsive ─── */
@media (max-width: 1100px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr 1fr; }
  .footer-main > *:nth-child(4), .footer-main > *:nth-child(5) { grid-column: span 1; }
}

@media (max-width: 900px) {
  :root { --section-v: 64px; }
  .container { padding: 0 24px; }
  .header-inner { padding: 0 24px; }
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .hero-controls { display: none; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .advantages-grid { grid-template-columns: 1fr; }
  .solutions-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .news-layout { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; padding: 48px 36px; text-align: center; }
  .cta-actions { justify-content: center; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .product-detail-layout, .product-detail-layout.reverse {
    grid-template-columns: 1fr; direction: ltr;
  }
  .product-detail-layout.reverse > * { direction: ltr; }
  .solution-card-lg, .solution-card-lg.alt { grid-template-columns: 1fr; direction: ltr; }
  .solution-card-lg.alt > * { direction: ltr; }
  .sol-visual { min-height: 260px; }
  .about-intro-layout { grid-template-columns: 1fr; gap: 40px; }
  .honor-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-layout { grid-template-columns: 1fr; }
  .svc-detail-grid { grid-template-columns: 1fr 1fr; }
  .process-steps { flex-wrap: wrap; gap: 24px; }
  .process-steps::before { display: none; }
  .step { flex: 0 0 calc(33.3% - 16px); }
  .hero-stats .stats-inner { flex-wrap: wrap; }
}

@media (max-width: 640px) {
  .hero-title { font-size: clamp(32px, 8vw, 48px); }
  .services-grid { grid-template-columns: 1fr; }
  .solutions-grid { grid-template-columns: 1fr 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-inner { display: grid; grid-template-columns: repeat(2, 1fr); }
  .stat-item + .stat-item::before { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .honor-grid { grid-template-columns: 1fr 1fr; }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .svc-detail-grid { grid-template-columns: 1fr; }
  .step { flex: 0 0 calc(50% - 12px); }
  .product-specs { grid-template-columns: 1fr 1fr; }
  .env-grid { grid-template-columns: 1fr; }
  .contact-info.glass-card, .contact-form-wrap.glass-card { padding: 28px 20px; }
  .section-cta .container h2 { font-size: 28px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .reveal, .reveal-left, .reveal-right { opacity: 1; transform: none; }
}

/* ═══════════════════════════════════════════════
   全站蓝紫浅色调强化 — 装饰背景 & 微调
   ═══════════════════════════════════════════════ */

/* 浅色 Section 装饰性背景噪点 */
.services-section,
.solutions-section,
.news-section,
.cta-section {
  position: relative;
}
.services-section::before,
.solutions-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 20%, rgba(59,111,237,0.06) 0%, transparent 40%),
    radial-gradient(circle at 85% 75%, rgba(139,92,246,0.06) 0%, transparent 40%);
  pointer-events: none;
  z-index: 0;
}
.services-section > *,
.solutions-section > * { position: relative; z-index: 1; }

/* 卡片 hover 左边框渐变条 */
.service-card::after {
  content: '';
  position: absolute;
  left: 0; top: 10%; bottom: 10%;
  width: 3px;
  border-radius: 0 2px 2px 0;
  background: var(--grad-main);
  opacity: 0;
  transition: opacity var(--t);
}
.service-card:hover::after { opacity: 1; }

/* 图标盒子升级 */
.service-icon-wrap,
.solution-icon-box {
  background: var(--grad-soft);
  box-shadow: 0 2px 8px rgba(79,70,229,0.10);
}
.service-card:hover .service-icon-wrap,
.solution-card:hover .solution-icon-box {
  box-shadow: 0 4px 16px rgba(79,70,229,0.18);
}

/* section-tag 渐变文字 */
.section-tag {
  background: var(--grad-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* 表单 focus 蓝紫边框 */
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--indigo);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.13);
  background: rgba(240,244,255,0.60);
}

/* FAQ 蓝紫色调 */
.faq-item {
  background: var(--grad-card);
  border-color: var(--border);
}
.faq-q:hover, .faq-question:hover {
  background: rgba(79,70,229,0.04);
}
.faq-q.open, .faq-question.open {
  color: var(--indigo);
}

/* news-date-block 蓝紫调 */
.news-date-block {
  background: linear-gradient(135deg, rgba(59,111,237,0.10), rgba(139,92,246,0.10));
  border: 1px solid rgba(79,70,229,0.12);
}

/* news-row hover 蓝紫调 */
.news-row:hover,
.news-list-item:hover {
  background: rgba(79,70,229,0.03);
}

/* stat-unit 渐变色 */
.stat-unit {
  background: var(--grad-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
}

/* 滚动指示器蓝紫 */
.scroll-mouse {
  border-color: rgba(139,92,246,0.40);
}
.scroll-wheel {
  background: linear-gradient(180deg, #4F8EF7, #9B6EF8);
}

/* Hero 统计栏底部光带 */
.hero-stats {
  background: rgba(8,9,26,0.88);
  border-top: 1px solid rgba(79,70,229,0.18);
}

/* contact-info-card 蓝紫调 */
.ci-icon-box {
  background: rgba(79,70,229,0.10);
  border-color: rgba(79,70,229,0.18);
}

/* 深色 section 的光晕装饰 */
.advantages-section,
.cases-section {
  position: relative;
  overflow: hidden;
}
.advantages-section::before {
  content: '';
  position: absolute;
  top: -20%; right: -10%;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79,70,229,0.07) 0%, transparent 70%);
  pointer-events: none;
}

/* btn-primary 更饱和 */
.btn-primary {
  background: var(--grad-vivid);
  box-shadow: 0 4px 18px rgba(79,70,229,0.32);
}
.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 10px 32px rgba(79,70,229,0.44);
}

/* header-cta 更饱和 */
.header-cta {
  background: var(--grad-vivid);
  box-shadow: 0 4px 12px rgba(79,70,229,0.28);
}
.header-cta:hover {
  box-shadow: 0 8px 24px rgba(79,70,229,0.42);
}