/* ============================================================
   上海灰龙信息科技有限公司 - 官方网站样式
   ============================================================ */

:root {
  --blue-deep: #0d2a6e;
  --blue-primary: #1a56db;
  --blue-light: #2d6ef0;
  --gold: #E8A020;
  --gold-light: #f5c050;
  --white: #ffffff;
  --gray-50: #f8f9fc;
  --gray-100: #f0f4ff;
  --gray-200: #e8eef8;
  --gray-400: #9aa5b8;
  --gray-600: #5a6478;
  --gray-800: #1e2a3a;
  --text-primary: #1a2235;
  --text-secondary: #5a6478;
  --shadow-sm: 0 2px 8px rgba(26,86,219,0.08);
  --shadow-md: 0 8px 32px rgba(26,86,219,0.12);
  --shadow-lg: 0 16px 48px rgba(26,86,219,0.16);
  --radius: 14px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans SC', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-primary);
  background: #fff;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--blue-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--blue-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26,86,219,0.35);
}
.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.6);
  color: #fff;
}
.btn-outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-full { width: 100%; justify-content: center; }

/* ============ SECTION BASICS ============ */
.section { padding: 96px 0; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block;
  padding: 5px 16px;
  background: rgba(26,86,219,0.08);
  color: var(--blue-primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-radius: 100px;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section-tag.light {
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.9);
}
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.section-title.light { color: #fff; }
.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  margin-top: 14px;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}
.section-desc.light { color: rgba(255,255,255,0.75); }
.gradient-text {
  background: linear-gradient(135deg, #E8A020, #f5c050);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============ HEADER ============ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0;
  background: transparent;
  transition: background 0.4s, box-shadow 0.4s, padding 0.3s;
}
.header.scrolled {
  background: rgba(10,20,60,0.95);
  backdrop-filter: blur(20px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.header-inner {
  display: flex;
  align-items: center;
  height: 72px;
  gap: 40px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon { width: 38px; height: 38px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-cn { font-size: 17px; font-weight: 700; color: #fff; letter-spacing: 0.03em; }
.logo-en { font-size: 10px; font-weight: 400; color: rgba(255,255,255,0.6); letter-spacing: 0.12em; text-transform: uppercase; }

/* Nav */
.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-link {
  padding: 6px 14px;
  color: rgba(255,255,255,0.85);
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
  transition: var(--transition);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 14px; right: 14px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
  transform: scaleX(0);
  transition: transform 0.3s;
}
.nav-link:hover, .nav-link.active {
  color: #fff;
  background: rgba(255,255,255,0.08);
}
.nav-link.active::after { transform: scaleX(1); }

/* Header actions */
.header-actions { display: flex; align-items: center; gap: 16px; }
.btn-phone {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  background: var(--gold);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: 7px;
  transition: var(--transition);
}
.btn-phone svg { width: 15px; height: 15px; }
.btn-phone:hover { background: var(--gold-light); transform: translateY(-1px); }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #050d2e 0%, #0d2a6e 40%, #0f3580 70%, #0a2060 100%);
  overflow: hidden;
  padding: 100px 0 80px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-particles {
  position: absolute;
  inset: 0;
}
.hero-grid {
  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: 60px 60px;
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(232,160,32,0.15);
  border: 1px solid rgba(232,160,32,0.4);
  color: var(--gold-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  border-radius: 100px;
  margin-bottom: 24px;
}
.hero-title {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.hero-desc {
  font-size: 16px;
  color: rgba(255,255,255,0.72);
  line-height: 1.8;
  margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 14px; margin-bottom: 52px; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: 0;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px;
  padding: 20px;
}
.stat-item {
  flex: 1;
  text-align: center;
}
.stat-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
}
.stat-unit {
  font-size: 18px;
  font-weight: 700;
  color: var(--gold);
}
.stat-label {
  display: block;
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  margin-top: 6px;
  font-weight: 500;
}
.stat-divider {
  width: 1px;
  background: rgba(255,255,255,0.1);
  margin: 0 4px;
}

/* Hero visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 480px;
}
.dragon-ring {
  position: relative;
  width: 320px;
  height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(26,86,219,0.3);
  animation: rotateRing 12s linear infinite;
}
.ring-1 { width: 100%; height: 100%; animation-duration: 20s; }
.ring-2 { width: 75%; height: 75%; animation-duration: 14s; animation-direction: reverse; border-color: rgba(232,160,32,0.2); }
.ring-3 { width: 50%; height: 50%; animation-duration: 10s; }

@keyframes rotateRing {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.dragon-core {
  position: relative;
  z-index: 2;
  width: 160px;
  height: 160px;
  background: rgba(26,86,219,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(26,86,219,0.3);
  box-shadow: 0 0 60px rgba(26,86,219,0.3), 0 0 120px rgba(232,160,32,0.1);
}
.dragon-core svg { width: 120px; height: 120px; }

.orbit-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--gold);
}
.dot-1 { top: 10px; left: 50%; transform: translateX(-50%); animation: orbitH 6s linear infinite; }
.dot-2 { top: 50%; right: 10px; transform: translateY(-50%); animation: orbitV 8s linear infinite; }
.dot-3 { bottom: 10px; left: 30%; animation: orbitD 10s linear infinite; }

@keyframes orbitH {
  0%, 100% { top: 10px; left: 50%; opacity: 1; }
  50% { top: 50%; left: 90%; opacity: 0.6; }
}
@keyframes orbitV {
  0%, 100% { top: 50%; right: 10px; opacity: 1; }
  50% { top: 90%; right: 50%; opacity: 0.6; }
}
@keyframes orbitD {
  0%, 100% { bottom: 10px; left: 30%; opacity: 1; }
  50% { bottom: 40%; left: 10%; opacity: 0.6; }
}

.float-cards {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  padding: 10px 14px;
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  animation: floatCard 4s ease-in-out infinite;
}
.float-card svg { width: 18px; height: 18px; flex-shrink: 0; }
.fc-1 { top: 20px; left: -20px; animation-delay: 0s; }
.fc-2 { top: 50%; right: -20px; transform: translateY(-50%); animation-delay: 1.3s; }
.fc-3 { bottom: 40px; left: 10px; animation-delay: 2.6s; }

@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.fc-2 { animation-name: floatCard2; }
@keyframes floatCard2 {
  0%, 100% { transform: translateY(-50%); }
  50% { transform: translateY(calc(-50% - 8px)); }
}

/* Hero scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.5);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: fadeInScroll 2s ease 2s both;
}
@keyframes fadeInScroll {
  from { opacity: 0; transform: translateX(-50%) translateY(10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}
.scroll-arrow {
  width: 20px;
  height: 30px;
  border: 1.5px solid rgba(255,255,255,0.3);
  border-radius: 10px;
  position: relative;
}
.scroll-arrow::after {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 6px;
  background: rgba(255,255,255,0.6);
  border-radius: 3px;
  animation: scrollDot 2s ease infinite;
}
@keyframes scrollDot {
  0% { top: 6px; opacity: 1; }
  100% { top: 16px; opacity: 0; }
}

/* Particles */
.particle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  animation: particleFloat linear infinite;
  opacity: 0;
}
@keyframes particleFloat {
  0% { opacity: 0; transform: translateY(0) scale(0.5); }
  10% { opacity: 0.6; }
  90% { opacity: 0.3; }
  100% { opacity: 0; transform: translateY(-100vh) scale(1); }
}

/* ============ CERTS ============ */
.certs-bar {
  background: linear-gradient(135deg, #07102a 0%, #0d2a6e 100%);
  padding: 28px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.certs-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}
.cert-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 32px;
  transition: var(--transition);
}
.cert-item:hover { transform: translateY(-2px); }
.cert-icon {
  width: 40px;
  height: 40px;
  background: rgba(232,160,32,0.1);
  border: 1px solid rgba(232,160,32,0.25);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.cert-icon svg { width: 20px; height: 20px; }
.cert-name {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
}
.cert-desc {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  margin-top: 2px;
  white-space: nowrap;
}
.cert-divider {
  width: 1px;
  height: 36px;
  background: rgba(255,255,255,0.08);
  flex-shrink: 0;
}
@media (max-width: 768px) {
  .certs-grid { gap: 8px; }
  .cert-item { padding: 8px 16px; }
  .cert-divider { display: none; }
}

/* ============ ABOUT ============ */
.about-section { background: var(--gray-50); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.about-visual { position: relative; }
.about-img-wrap { position: relative; padding: 20px; }
.about-img-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--blue-primary) 0%, var(--blue-deep) 100%);
  border-radius: 24px;
  transform: rotate(-3deg);
  opacity: 0.08;
}
.about-img-main {
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow-lg);
}
.about-icon-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.icon-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 24px 16px;
  border-radius: 14px;
  background: var(--gray-50);
  transition: var(--transition);
}
.icon-block:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.icon-block svg { width: 48px; height: 48px; }
.icon-block span { font-size: 13px; font-weight: 600; color: var(--text-primary); }

.about-badge-float {
  position: absolute;
  bottom: 0;
  right: -20px;
  background: var(--gold);
  color: #fff;
  border-radius: 16px;
  padding: 16px 20px;
  text-align: center;
  box-shadow: 0 8px 24px rgba(232,160,32,0.4);
  animation: floatCard 3s ease-in-out infinite;
}
.abf-num { font-size: 36px; font-weight: 800; line-height: 1; }
.abf-text { font-size: 12px; font-weight: 600; opacity: 0.9; margin-top: 4px; line-height: 1.4; }

.about-content { padding: 20px 0; }
.about-text {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 14px;
}
.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 32px;
}
.tag {
  padding: 5px 14px;
  background: rgba(26,86,219,0.07);
  color: var(--blue-primary);
  font-size: 13px;
  font-weight: 500;
  border-radius: 100px;
  border: 1px solid rgba(26,86,219,0.15);
}
.about-metrics {
  display: flex;
  gap: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-200);
}
.metric-val {
  font-size: 36px;
  font-weight: 800;
  color: var(--blue-primary);
  line-height: 1;
}
.metric-val span { font-size: 22px; }
.metric-key { font-size: 13px; color: var(--text-secondary); margin-top: 6px; font-weight: 500; }

/* ============ SERVICES ============ */
.services-section { position: relative; background: #fff; }
.services-bg {
  position: absolute;
  top: 0; right: 0;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(26,86,219,0.05), transparent 70%);
  pointer-events: none;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-primary), var(--blue-light));
  transform: scaleX(0);
  transition: transform 0.3s;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.service-card:hover::before { transform: scaleX(1); }
.service-card.sc-featured {
  background: linear-gradient(135deg, var(--blue-primary) 0%, var(--blue-deep) 100%);
  color: #fff;
  border-color: transparent;
  grid-row: span 1;
}
.service-card.sc-featured h3, .service-card.sc-featured p { color: rgba(255,255,255,0.95); }
.service-card.sc-featured .sc-list li { color: rgba(255,255,255,0.8); }
.service-card.sc-featured .sc-link { color: var(--gold-light); }
.service-card.sc-featured::before { background: var(--gold); }
.sc-icon { margin-bottom: 20px; }
.sc-icon svg { width: 48px; height: 48px; }
.service-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.service-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 18px; }
.sc-list { margin-bottom: 20px; }
.sc-list li {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 4px 0;
  padding-left: 16px;
  position: relative;
}
.sc-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  background: var(--blue-primary);
  border-radius: 50%;
}
.sc-featured .sc-list li::before { background: var(--gold-light); }
.sc-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--blue-primary);
  transition: var(--transition);
}
.sc-link:hover { letter-spacing: 0.02em; }

/* ============ SOLUTIONS ============ */
.solutions-section { background: var(--gray-50); }
.solutions-tabs {}
.sol-tab-nav {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 6px;
}
.sol-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  flex: 1;
  justify-content: center;
}
.sol-tab svg { width: 16px; height: 16px; }
.sol-tab:hover { color: var(--blue-primary); background: var(--gray-100); }
.sol-tab.active {
  background: var(--blue-primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(26,86,219,0.3);
}

.sol-panel { display: none; }
.sol-panel.active { display: block; }
.sol-panel-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-md);
}
.sol-text h3 { font-size: 26px; font-weight: 700; margin-bottom: 16px; }
.sol-text p { color: var(--text-secondary); font-size: 15px; line-height: 1.8; margin-bottom: 28px; }
.sol-features { display: flex; flex-direction: column; gap: 16px; margin-bottom: 32px; }
.sol-feat { display: flex; gap: 14px; }
.sf-check {
  width: 22px;
  height: 22px;
  background: rgba(26,86,219,0.1);
  color: var(--blue-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}
.sol-feat strong { display: block; font-size: 14px; font-weight: 600; color: var(--text-primary); }
.sol-feat span { font-size: 13px; color: var(--text-secondary); }

.sol-img {}
.sol-img-card {
  background: linear-gradient(135deg, var(--blue-deep), #1a3a8e);
  border-radius: var(--radius-lg);
  padding: 32px;
  color: #fff;
  position: relative;
  overflow: hidden;
  min-height: 300px;
}
.sol-img-card::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 200px; height: 200px;
  background: rgba(232,160,32,0.08);
  border-radius: 50%;
}
.sic-header {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.8);
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 24px;
}
.sic-steps { display: flex; flex-direction: column; gap: 12px; }
.sic-step {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 14px;
  font-weight: 500;
}
.sic-num {
  width: 32px;
  height: 32px;
  background: rgba(232,160,32,0.2);
  color: var(--gold);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}
.sic-arrow { color: rgba(255,255,255,0.3); margin-left: auto; font-size: 12px; }
.sic-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0; }
.sic-tag {
  padding: 5px 12px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
}
.sic-badge {
  position: absolute;
  bottom: 24px;
  right: 24px;
  background: var(--gold);
  border-radius: 12px;
  padding: 12px 16px;
  text-align: center;
}
.sic-badge span { font-size: 11px; font-weight: 600; color: rgba(255,255,255,0.85); display: block; }
.sic-badge strong { font-size: 22px; font-weight: 800; color: #fff; display: block; line-height: 1.2; }

/* ============ ADVANTAGES ============ */
.advantages-section {
  position: relative;
  background: linear-gradient(135deg, #050d2e 0%, #0d2a6e 60%, #0f3580 100%);
}
.adv-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(232,160,32,0.06) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(26,86,219,0.1) 0%, transparent 50%);
  pointer-events: none;
}
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.adv-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.adv-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue-primary), var(--gold));
  transform: scaleX(0);
  transition: transform 0.3s;
}
.adv-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-4px);
}
.adv-card:hover::after { transform: scaleX(1); }
.adv-icon { margin-bottom: 20px; }
.adv-icon svg { width: 56px; height: 56px; }
.adv-card h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.adv-card p { font-size: 14px; color: rgba(255,255,255,0.65); line-height: 1.7; margin-bottom: 20px; }
.adv-stat {
  font-size: 26px;
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
}
.adv-stat span {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: rgba(255,255,255,0.5);
  margin-top: 4px;
}

/* ============ PROCESS ============ */
.process-section { background: #fff; }
.process-steps {
  display: flex;
  align-items: center;
  gap: 0;
}
.process-step {
  flex: 1;
  text-align: center;
  padding: 32px 24px;
  position: relative;
}
.ps-num {
  font-size: 11px;
  font-weight: 700;
  color: var(--blue-primary);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  opacity: 0.6;
}
.ps-icon {
  width: 64px;
  height: 64px;
  background: var(--gray-100);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  transition: var(--transition);
}
.ps-icon svg { width: 36px; height: 36px; }
.process-step:hover .ps-icon {
  background: var(--blue-primary);
  transform: scale(1.05);
}
.process-step:hover .ps-icon svg path { stroke: #fff; }
.process-step h4 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.process-step p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.ps-connector {
  flex-shrink: 0;
  padding: 0 8px;
  padding-top: 40px;
}
.ps-line {
  width: 48px;
  height: 2px;
  background: linear-gradient(90deg, var(--blue-primary), var(--gold));
  position: relative;
}
.ps-line::after {
  content: '';
  position: absolute;
  right: -6px;
  top: -4px;
  width: 0;
  height: 0;
  border-left: 8px solid var(--gold);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

/* ============ CLIENTS ============ */
.clients-section { background: var(--gray-50); }
.clients-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin-bottom: 20px;
}
.client-logo {
  transition: var(--transition);
}
.client-logo:hover { transform: translateY(-3px); }
.cl-placeholder { opacity: 0.7; transition: opacity 0.3s; }
.client-logo:hover .cl-placeholder { opacity: 1; }
.clients-note {
  text-align: center;
  font-size: 13px;
  color: var(--gray-400);
  margin-top: 16px;
}

/* ============ CONTACT ============ */
.contact-section { background: #fff; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 72px;
  align-items: start;
}
.contact-info { padding-top: 20px; }
.contact-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 16px 0 36px;
}
.contact-items { display: flex; flex-direction: column; gap: 20px; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
}
.ci-icon {
  width: 44px;
  height: 44px;
  background: rgba(26,86,219,0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.ci-icon svg { width: 20px; height: 20px; }
.ci-label { font-size: 12px; color: var(--text-secondary); margin-bottom: 2px; }
.ci-val { font-size: 15px; font-weight: 600; color: var(--text-primary); }

/* Form */
.contact-form-wrap {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.contact-form h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 28px;
  color: var(--text-primary);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group.full { grid-column: span 2; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.form-group label span { color: var(--blue-primary); }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--gray-200);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text-primary);
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  -webkit-appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue-primary);
  box-shadow: 0 0 0 3px rgba(26,86,219,0.1);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #b0b8c9; }
.form-group textarea { resize: vertical; min-height: 100px; }

/* ============ FOOTER ============ */
.footer { background: #07102a; color: rgba(255,255,255,0.7); }
.footer-top { padding: 64px 0 48px; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
}
.footer-brand-desc {
  font-size: 14px;
  line-height: 1.7;
  margin: 20px 0 24px;
  color: rgba(255,255,255,0.55);
}
.footer-social { display: flex; gap: 10px; }
.social-btn {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.06);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}
.social-btn svg { width: 18px; height: 18px; }
.social-btn:hover { background: var(--blue-primary); color: #fff; }

.footer-nav-group h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}
.footer-nav-group ul { display: flex; flex-direction: column; gap: 10px; }
.footer-nav-group a {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  transition: color 0.2s;
}
.footer-nav-group a:hover { color: var(--gold); }

.footer-qr { margin-top: 24px; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.qr-placeholder { width: 60px; height: 60px; }
.footer-qr span { font-size: 11px; color: rgba(255,255,255,0.4); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
}
.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: rgba(255,255,255,0.4); transition: color 0.2s; }
.footer-bottom-links a:hover { color: var(--gold); }

/* ============ BACK TO TOP ============ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--blue-primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(26,86,219,0.4);
  opacity: 0;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 900;
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { background: var(--blue-light); transform: translateY(-2px); }
.back-to-top svg { width: 20px; height: 20px; }

/* ============ TOAST ============ */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--blue-deep);
  color: #fff;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  z-index: 2000;
  transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
  white-space: nowrap;
  border-left: 4px solid var(--gold);
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* ============ SCROLL ANIMATIONS ============ */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { order: 2; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .adv-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-stats { max-width: 600px; margin: 0 auto; }
  .hero-actions { justify-content: center; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .nav { display: none; flex-direction: column; position: fixed; top: 72px; left: 0; right: 0; background: rgba(5,13,46,0.97); backdrop-filter: blur(20px); padding: 20px; gap: 4px; }
  .nav.open { display: flex; }
  .nav-link { padding: 12px 16px; }
  .menu-toggle { display: flex; }
  .btn-phone { display: none; }
  .services-grid { grid-template-columns: 1fr; }
  .sol-tab-nav { flex-wrap: wrap; }
  .sol-tab { font-size: 13px; padding: 8px 12px; }
  .sol-panel-content { grid-template-columns: 1fr; padding: 28px; }
  .adv-grid { grid-template-columns: 1fr; }
  .process-steps { flex-direction: column; align-items: stretch; }
  .ps-connector { transform: rotate(90deg); margin: 0 auto; padding: 0; height: 30px; display: flex; align-items: center; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { text-align: center; }
  .footer-bottom-inner { flex-direction: column; gap: 12px; text-align: center; }
  .hero-stats { flex-wrap: wrap; }
  .stat-item { min-width: 80px; }
  .form-row { grid-template-columns: 1fr; }
  .about-badge-float { right: 0; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 30px; }
  .hero-stats { display: grid; grid-template-columns: 1fr 1fr; }
  .stat-divider { display: none; }
}