/* 溯言 SoChat - 酷炫视差官网 */

:root {
  --color-bg: #050810;
  --color-bg-2: #0a0f1a;
  --color-bg-card: rgba(15, 23, 42, 0.6);
  --color-text: #f1f5f9;
  --color-text-muted: #94a3b8;
  --color-primary: #3b82f6;
  --color-primary-glow: rgba(59, 130, 246, 0.5);
  --color-secondary: #8b5cf6;
  --color-accent: #06b6d4;
  --color-success: #10b981;
  --color-danger: #ef4444;
  --color-border: rgba(255, 255, 255, 0.08);
  --font: 'Noto Sans SC', system-ui, sans-serif;
  --radius: 20px;
  --radius-sm: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== Background Effects ===== */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

.bg-gradient {
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(59, 130, 246, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 90% 50%, rgba(139, 92, 246, 0.1), transparent),
    radial-gradient(ellipse 50% 30% at 10% 80%, rgba(6, 182, 212, 0.08), transparent);
  pointer-events: none;
  z-index: 0;
}

.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.15;
  transform: translate(-50%, -50%);
  z-index: 1;
  transition: opacity 0.3s;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all var(--transition);
}

.header.scrolled {
  padding: 12px 0;
  background: rgba(5, 8, 16, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-text);
}

.logo-img {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
}

.logo-sub {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-left: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  transition: all var(--transition);
}

.nav-links a:hover {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.05);
}

.nav-demo {
  color: var(--color-primary) !important;
}

.nav-cta {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary)) !important;
  color: #fff !important;
  padding: 10px 24px !important;
}

.nav-cta:hover {
  box-shadow: 0 0 30px var(--color-primary-glow);
  transform: translateY(-2px);
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 120px 40px 80px;
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 10;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 50px;
  font-size: 0.9rem;
  color: var(--color-primary);
  margin-bottom: 32px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
  margin-bottom: 24px;
}

.title-line {
  display: block;
  font-size: clamp(4rem, 15vw, 8rem);
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, #fff 0%, #94a3b8 50%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.title-en {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 500;
  letter-spacing: 0.3em;
  margin-top: 8px;
  background: linear-gradient(90deg, var(--color-text-muted), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-slogan {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 600;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 24px;
  letter-spacing: 0.1em;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 60px;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  padding: 32px 48px;
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.stat {
  text-align: center;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-plus {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-primary);
}

.stat-label {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, transparent, var(--color-border), transparent);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  animation: float 3s ease-in-out infinite;
}

.scroll-indicator {
  width: 24px;
  height: 40px;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  position: relative;
}

.scroll-indicator::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 2px;
  animation: scroll-down 2s ease-in-out infinite;
}

@keyframes scroll-down {
  0%, 100% { top: 8px; opacity: 1; }
  50% { top: 20px; opacity: 0.3; }
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.btn-glow {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  box-shadow: 0 0 40px var(--color-primary-glow);
}

.btn-glow:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 50px var(--color-primary-glow);
}

.btn-glow .btn-shine {
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shine 3s infinite;
}

@keyframes shine {
  0% { left: -100%; }
  50%, 100% { left: 100%; }
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background: rgba(59, 130, 246, 0.1);
  transform: translateY(-3px);
}

.btn-icon {
  font-size: 0.8rem;
}

.btn-block {
  width: 100%;
}

.btn-lg {
  padding: 18px 40px;
  font-size: 1.1rem;
}

/* ===== Sections ===== */
.section {
  padding: 120px 0;
  position: relative;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  position: relative;
  z-index: 10;
}

.parallax-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(139, 92, 246, 0.05));
  z-index: 0;
}

.parallax-bg-2 {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.05), rgba(6, 182, 212, 0.05));
}

.parallax-bg-3 {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.05), rgba(16, 185, 129, 0.05));
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.2em;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--color-text), var(--color-text-muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== Why Section ===== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.why-card {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}

.why-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-primary);
}

.card-glow {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, var(--color-primary-glow), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition);
}

.why-card:hover .card-glow {
  opacity: 0.1;
}

.why-problem {
  border-left: 3px solid var(--color-danger);
}

.why-solution {
  border-left: 3px solid var(--color-success);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.card-icon-red {
  background: rgba(239, 68, 68, 0.15);
  color: var(--color-danger);
}

.card-icon-green {
  background: rgba(16, 185, 129, 0.15);
  color: var(--color-success);
}

.card-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
  color: var(--color-text-muted);
}

.why-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.why-card p {
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== Features Section ===== */
.section-features {
  background: var(--color-bg-2);
}

.features-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.feature-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.visual-ring {
  position: absolute;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  animation: rotate 20s linear infinite;
}

.ring-1 {
  width: 100%;
  height: 100%;
  animation-duration: 30s;
}

.ring-2 {
  width: 75%;
  height: 75%;
  animation-duration: 25s;
  animation-direction: reverse;
}

.ring-3 {
  width: 50%;
  height: 50%;
  animation-duration: 20s;
}

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

.visual-core {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  box-shadow: 0 0 60px var(--color-primary-glow);
  animation: pulse-core 3s ease-in-out infinite;
}

@keyframes pulse-core {
  0%, 100% { box-shadow: 0 0 60px var(--color-primary-glow); }
  50% { box-shadow: 0 0 100px var(--color-primary-glow); }
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.feature-item:hover {
  border-color: var(--color-primary);
  transform: translateX(10px);
}

.feature-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.feature-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.feature-content p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ===== Architecture Section ===== */
.arch-showcase {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.arch-card {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  transition: all var(--transition);
}

.arch-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-5px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.arch-value {
  font-size: 3rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}

.arch-value span {
  font-size: 1.5rem;
}

.arch-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.arch-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.arch-badges {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.arch-badge {
  padding: 12px 24px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  font-size: 0.95rem;
}

/* ===== Solutions Section ===== */
.section-solutions {
  background: var(--color-bg-2);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.solution-card {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px 32px;
  position: relative;
  transition: all var(--transition);
}

.solution-card:hover {
  transform: translateY(-5px);
}

.solution-featured {
  border-color: var(--color-primary);
  background: linear-gradient(180deg, rgba(59, 130, 246, 0.1), var(--color-bg-card));
}

.solution-featured:hover {
  box-shadow: 0 0 60px rgba(59, 130, 246, 0.2);
}

.solution-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(180deg, var(--color-primary-glow), transparent);
  opacity: 0.1;
  border-radius: var(--radius) var(--radius) 0 0;
}

.solution-badge {
  position: absolute;
  top: -12px;
  right: 24px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.solution-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.solution-desc {
  color: var(--color-text-muted);
  margin-bottom: 24px;
  line-height: 1.6;
}

.solution-list {
  list-style: none;
  margin-bottom: 24px;
}

.solution-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

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

.solution-target {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  padding: 12px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
  text-align: center;
}

/* ===== Security Section ===== */
.security-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.security-card {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  transition: all var(--transition);
}

.security-card:hover {
  border-color: var(--color-success);
  transform: translateY(-5px);
}

.security-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.security-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.security-card ul {
  list-style: none;
  text-align: left;
}

.security-card li {
  padding: 8px 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  padding-left: 20px;
  position: relative;
}

.security-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--color-success);
  border-radius: 50%;
}

/* ===== Industries Section ===== */
.industries-marquee {
  overflow: hidden;
  padding: 40px 0;
}

.marquee-track {
  display: flex;
  gap: 40px;
  animation: marquee 30s linear infinite;
}

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

.industry-item {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 40px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 2rem;
  transition: all var(--transition);
}

.industry-item:hover {
  border-color: var(--color-primary);
}

.industry-item span {
  font-size: 1.1rem;
  font-weight: 600;
}

/* ===== CTA Section ===== */
.section-cta {
  background: var(--color-bg-2);
  position: relative;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 100% 100% at 50% 100%, rgba(59, 130, 246, 0.15), transparent 50%);
}

.cta-content {
  text-align: center;
  position: relative;
  z-index: 10;
  padding: 80px;
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.cta-content h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-content > p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  margin-bottom: 48px;
}

.cta-contacts {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 48px;
}

.cta-contact {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-icon {
  font-size: 2rem;
}

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

.contact-label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.contact-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* ===== Footer ===== */
.footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 80px 0 40px;
}

.footer-main {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  margin-bottom: 60px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-slogan {
  color: var(--color-text-muted);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
  color: var(--color-text);
}

.footer-col a {
  display: block;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 8px 0;
  transition: color var(--transition);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

.footer-bottom p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
}

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

/* ===== Premium Modules Section ===== */
.section-premium {
  background: var(--color-bg-2);
  position: relative;
}

.premium-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.premium-card {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  position: relative;
  transition: all var(--transition);
  overflow: hidden;
}

.premium-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  opacity: 0;
  transition: opacity var(--transition);
}

.premium-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-5px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.premium-card:hover::before {
  opacity: 1;
}

.premium-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  display: block;
}

.premium-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.premium-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.premium-tag {
  display: inline-block;
  padding: 4px 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
}

.premium-cta {
  text-align: center;
  padding: 40px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.premium-cta p {
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

/* ===== More Features Section ===== */
.section-more-features {
  background: var(--color-bg);
}

.more-features-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}

.more-feature-item {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: all var(--transition);
}

.more-feature-item:hover {
  border-color: var(--color-primary);
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.more-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 16px;
}

.more-feature-item h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.more-feature-item p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ===== Animations ===== */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-animate="slide-left"] {
  transform: translateX(-50px);
}

[data-animate="slide-right"] {
  transform: translateX(50px);
}

[data-animate="scale"] {
  transform: scale(0.9);
}

[data-animate="fade"] {
  transform: none;
}

[data-animate].animated {
  opacity: 1;
  transform: none;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .why-grid {
    grid-template-columns: 1fr;
  }
  
  .features-showcase {
    grid-template-columns: 1fr;
    gap: 60px;
  }
  
  .feature-visual {
    max-width: 400px;
    margin: 0 auto;
  }
  
  .more-features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .premium-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .arch-showcase {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .solutions-grid {
    grid-template-columns: 1fr;
  }
  
  .security-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .cta-contacts {
    flex-direction: column;
    align-items: center;
    gap: 24px;
  }
  
  .footer-main {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .hero {
    padding: 100px 20px 60px;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 24px;
    padding: 24px;
  }
  
  .stat-divider {
    width: 40px;
    height: 1px;
  }
  
  .section {
    padding: 80px 0;
  }
  
  .container {
    padding: 0 20px;
  }
  
  .more-features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .premium-grid {
    grid-template-columns: 1fr;
  }
  
  .arch-showcase {
    grid-template-columns: 1fr;
  }
  
  .security-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-content {
    padding: 40px 24px;
  }
  
  .cta-actions {
    flex-direction: column;
  }
  
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
}