/* CSS Variables */
:root {
  /* Color Palette */
  --color-primary: #4082e9;
  --color-secondary: #726e6a;
  --color-accent: #cdb193;
  --color-dark: #1d1c1c;
  --color-white: #ffffff;
  --color-light: #f8f9fa;
  --color-gray-100: #f1f3f4;
  --color-gray-200: #e8eaed;
  --color-gray-300: #dadce0;
  --color-gray-400: #bdc1c6;
  --color-gray-500: #9aa0a6;
  --color-gray-600: #80868b;
  --color-gray-700: #5f6368;
  --color-gray-800: #3c4043;
  --color-gray-900: #202124;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-primary), #3a73d1);
  --gradient-secondary: linear-gradient(135deg, var(--color-secondary), #625d59);
  --gradient-accent: linear-gradient(135deg, var(--color-accent), #b8a082);
  --gradient-hero: linear-gradient(135deg, rgba(64, 130, 233, 0.1), rgba(205, 177, 147, 0.1));
  
  /* Typography */
  --font-family-primary: 'Noto Sans SC', sans-serif;
  --font-family-secondary: 'Inter', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  --spacing-24: 6rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-base: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-base: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-gray-800);
  background-color: var(--color-white);
  overflow-x: hidden;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-6);
  }
}

/* Section */
.section {
  padding: var(--spacing-16) 0;
}

.section__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-4);
  color: var(--color-dark);
}

.section__subtitle {
  font-size: var(--font-size-lg);
  text-align: center;
  margin-bottom: var(--spacing-12);
  color: var(--color-gray-600);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: var(--z-fixed);
  transition: var(--transition-base);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--color-dark);
  font-weight: 700;
  font-size: var(--font-size-xl);
}

.nav__logo-img {
  width: 32px;
  height: 32px;
  margin-right: var(--spacing-2);
}

.nav__menu {
  display: flex;
  align-items: center;
}

.nav__list {
  display: flex;
  list-style: none;
  gap: var(--spacing-8);
}

.nav__link {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--color-gray-700);
  font-weight: 500;
  font-size: var(--font-size-sm);
  transition: var(--transition-base);
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--radius-base);
}

.nav__link:hover {
  color: var(--color-primary);
  background-color: rgba(64, 130, 233, 0.1);
}

.nav__link i {
  margin-right: var(--spacing-2);
  font-size: var(--font-size-sm);
}

.nav__toggle,
.nav__close {
  display: none;
  font-size: var(--font-size-xl);
  color: var(--color-dark);
  cursor: pointer;
  transition: var(--transition-base);
}

.nav__toggle:hover,
.nav__close:hover {
  color: var(--color-primary);
}

/* Dropdown Menu */
.nav__dropdown {
  position: relative;
}

.nav__dropdown-arrow {
  margin-left: var(--spacing-1);
  font-size: var(--font-size-xs);
  transition: var(--transition-base);
}

.nav__dropdown:hover .nav__dropdown-arrow {
  transform: rotate(180deg);
}

.nav__dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-white);
  border-radius: var(--radius-base);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-2);
  min-width: 200px;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition-base);
  z-index: 1000;
}

.nav__dropdown:hover .nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__dropdown-link {
  display: flex;
  align-items: center;
  padding: var(--spacing-3) var(--spacing-4);
  text-decoration: none;
  color: var(--color-gray-700);
  border-radius: var(--radius-sm);
  transition: var(--transition-base);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.nav__dropdown-link:hover {
  background-color: rgba(64, 130, 233, 0.1);
  color: var(--color-primary);
}

.nav__dropdown-link i {
  margin-right: var(--spacing-3);
  font-size: var(--font-size-sm);
  color: var(--color-primary);
}

/* Hero Section */
.hero {
  position: relative;
  padding-top: 80px;
  padding-bottom: var(--spacing-12);
  min-height: 70vh;
  overflow: hidden;
  display: flex;
  align-items: center;
}

/* Hero Background */
.hero__background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero__particles {
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 20% 80%, rgba(64, 130, 233, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(205, 177, 147, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 40% 40%, rgba(114, 110, 106, 0.05) 0%, transparent 50%);
  animation: particleFloat 20s ease-in-out infinite;
}

.hero__gradient-overlay {
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, 
    rgba(64, 130, 233, 0.08) 0%, 
    rgba(205, 177, 147, 0.05) 50%, 
    rgba(29, 28, 28, 0.02) 100%);
}

.hero__container {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-10);
  align-items: center;
  z-index: 1;
}

.hero__content {
  order: 1;
  animation: slideInLeft 0.8s ease-out;
}

/* Badge Group */
.hero__badge-group {
  display: flex;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-5);
  flex-wrap: wrap;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(10px);
  transition: var(--transition-base);
}

.hero__badge:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.hero__badge--version {
  background: var(--gradient-primary);
  color: var(--color-white);
}

.hero__badge--status {
  background: linear-gradient(135deg, #ff6b6b, #ff8e8e);
  color: var(--color-white);
}

.hero__badge i {
  margin-right: var(--spacing-2);
  font-size: var(--font-size-xs);
}

/* Title Group */
.hero__title-group {
  margin-bottom: var(--spacing-5);
}

.hero__title {
  position: relative;
  margin-bottom: var(--spacing-3);
  line-height: 1.1;
}

.hero__title-main {
  display: block;
  font-size: var(--font-size-4xl);
  font-weight: 900;
  color: var(--color-dark);
  position: relative;
  z-index: 2;
}

.hero__title-effect {
  position: absolute;
  top: 0;
  left: 0;
  font-size: var(--font-size-4xl);
  font-weight: 900;
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.3;
  transform: translate(2px, 2px);
  z-index: 1;
}

.hero__subtitle {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

.hero__subtitle-en {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-secondary);
  font-family: var(--font-family-secondary);
  letter-spacing: 0.5px;
}

.hero__subtitle-tag {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-primary);
  opacity: 0.8;
}

/* Description */
.hero__description-wrapper {
  margin-bottom: var(--spacing-6);
}

.hero__description {
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-gray-700);
  max-width: 90%;
}

.hero__description-highlight {
  background: linear-gradient(120deg, rgba(64, 130, 233, 0.1) 0%, rgba(205, 177, 147, 0.1) 100%);
  padding: var(--spacing-1) var(--spacing-2);
  border-radius: var(--radius-sm);
  font-weight: 600;
  color: var(--color-primary);
}

.hero__description strong {
  color: var(--color-dark);
  font-weight: 700;
}

/* Features */
.hero__features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-12);
}

.hero__feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-4);
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.hero__feature::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  transition: var(--transition-base);
}

.hero__feature--primary::before {
  background: var(--gradient-primary);
}

.hero__feature--secondary::before {
  background: var(--gradient-secondary);
}

.hero__feature--accent::before {
  background: var(--gradient-accent);
}

.hero__feature:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.hero__feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.hero__feature--primary .hero__feature-icon {
  background: var(--gradient-primary);
  color: var(--color-white);
}

.hero__feature--secondary .hero__feature-icon {
  background: var(--gradient-secondary);
  color: var(--color-white);
}

.hero__feature--accent .hero__feature-icon {
  background: var(--gradient-accent);
  color: var(--color-white);
}

.hero__feature-content {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.hero__feature-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-dark);
  line-height: 1.3;
}

.hero__feature-desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.2;
}

/* Actions */
.hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.hero__download {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.hero__download-info {
  margin-top: var(--spacing-1);
}

.download-info {
  display: flex;
  gap: var(--spacing-4);
  flex-wrap: wrap;
}

.download-info__item {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
  font-size: var(--font-size-xs);
  color: var(--color-gray-600);
  padding: var(--spacing-1) var(--spacing-2);
  background: rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-base);
  backdrop-filter: blur(5px);
}

.download-info__item i {
  color: var(--color-primary);
  font-size: var(--font-size-xs);
}

/* Quick Actions */
.hero__quick-actions {
  display: flex;
  gap: var(--spacing-4);
  flex-wrap: wrap;
}

.quick-action {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-4);
  background: rgba(255, 255, 255, 0.8);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--color-gray-700);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: var(--transition-base);
  backdrop-filter: blur(10px);
}

.quick-action:hover {
  border-color: var(--color-primary);
  background: rgba(64, 130, 233, 0.1);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.quick-action i {
  font-size: var(--font-size-sm);
}

/* Hero Media */
.hero__media {
  order: 2;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  animation: slideInRight 0.8s ease-out 0.2s both;
}

.hero__image-wrapper {
  position: relative;
}

.hero__image-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transition: var(--transition-slow);
}

.hero__image-frame:hover {
  transform: translateY(-10px) rotateY(5deg);
  box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.25);
}

.hero__img {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition-slow);
}

.hero__image-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-base);
}

.hero__image-frame:hover .hero__image-overlay {
  opacity: 1;
}

.hero__play-button {
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
  cursor: pointer;
  transition: var(--transition-base);
  backdrop-filter: blur(10px);
}

.hero__play-button:hover {
  transform: scale(1.1);
  background: var(--color-white);
}

/* Thumbnails */
.hero__thumbnails {
  display: flex;
  gap: var(--spacing-3);
  justify-content: center;
  margin-top: var(--spacing-4);
}

.hero__thumbnail {
  width: 60px;
  height: 40px;
  border-radius: var(--radius-base);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition-base);
  border: 2px solid transparent;
}

.hero__thumbnail:hover,
.hero__thumbnail--active {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.hero__thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Stats */
.hero__stats {
  display: flex;
  gap: var(--spacing-3);
  justify-content: center;
}

.stat-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(15px);
  padding: var(--spacing-3);
  border-radius: var(--radius-base);
  text-align: center;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition: var(--transition-base);
  min-width: 70px;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.stat-card__value {
  font-size: var(--font-size-lg);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--spacing-1);
  line-height: 1;
}

.stat-card__label {
  font-size: 10px;
  color: var(--color-gray-600);
  line-height: 1.2;
}

.stat-card__stars {
  display: flex;
  justify-content: center;
  gap: 2px;
  margin-bottom: var(--spacing-1);
}

.stat-card__stars i {
  color: #fbbf24;
  font-size: 10px;
}

/* Enhanced Download Button */
.download-btn--primary {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  background: var(--gradient-primary);
  color: var(--color-white);
  text-decoration: none;
  border-radius: var(--radius-base);
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
  max-width: fit-content;
}

.download-btn--primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-slow);
}

.download-btn--primary:hover::before {
  left: 100%;
}

.download-btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.download-btn__icon {
  font-size: var(--font-size-base);
}

.download-btn__text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.1;
}

.download-btn__main {
  font-size: var(--font-size-base);
  font-weight: 700;
}

.download-btn__sub {
  font-size: var(--font-size-xs);
  opacity: 0.9;
  font-weight: 400;
}

/* Animations */
@keyframes particleFloat {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(20px, -20px) rotate(120deg); }
  66% { transform: translate(-20px, 20px) rotate(240deg); }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Download Button */
.download-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-4) var(--spacing-8);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: var(--font-size-lg);
  text-decoration: none;
  transition: var(--transition-base);
  box-shadow: var(--shadow-lg);
  border: none;
  cursor: pointer;
}

.download-btn.primary {
  background: var(--gradient-primary);
  color: var(--color-white);
}

.download-btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.download-btn.secondary {
  background: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.download-btn.secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.download-btn i {
  margin-right: var(--spacing-2);
}

.download-info {
  display: flex;
  gap: var(--spacing-4);
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  flex-wrap: wrap;
}

/* Features Section */
.features {
  background-color: var(--color-light);
}

.features__container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-6);
}

.feature {
  background: var(--color-white);
  padding: var(--spacing-8);
  border-radius: var(--radius-xl);
  text-align: center;
  box-shadow: var(--shadow-base);
  transition: var(--transition-base);
}

.feature:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-6);
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}

.feature__icon i {
  font-size: var(--font-size-2xl);
  color: var(--color-white);
}

.feature__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-4);
  color: var(--color-dark);
}

.feature__description {
  color: var(--color-gray-600);
  line-height: 1.7;
}

/* Gallery Section */
.gallery__container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-6);
}

.gallery__item {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition-base);
}

.gallery__item:hover {
  transform: scale(1.05);
}

.gallery__item img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: var(--transition-base);
}

.gallery__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(64, 130, 233, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-base);
}

.gallery__item:hover .gallery__overlay {
  opacity: 1;
}

.gallery__overlay i {
  font-size: var(--font-size-3xl);
  color: var(--color-white);
}

/* News Section */
.news {
  background-color: var(--color-light);
}

.news__container {
  display: grid;
  gap: var(--spacing-8);
}

.news__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--spacing-6);
  background: var(--color-white);
  padding: var(--spacing-8);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-base);
  transition: var(--transition-base);
}

.news__item:hover {
  box-shadow: var(--shadow-lg);
}

.news__date {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--gradient-primary);
  color: var(--color-white);
  padding: var(--spacing-4);
  border-radius: var(--radius-lg);
  min-width: 80px;
  text-align: center;
}

.news__date .day {
  font-size: var(--font-size-xl);
  font-weight: 700;
  line-height: 1;
}

.news__date .month {
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.news__date .year {
  font-size: var(--font-size-xs);
  opacity: 0.8;
}

.news__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-3);
  color: var(--color-dark);
}

.news__description {
  color: var(--color-gray-600);
  line-height: 1.7;
  margin-bottom: var(--spacing-4);
}

.news__link {
  display: inline-flex;
  align-items: center;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition-base);
}

.news__link:hover {
  color: var(--color-secondary);
}

.news__link i {
  margin-right: var(--spacing-2);
}

/* Reviews Section */
.reviews {
  background-color: var(--color-light);
  color: var(--color-dark);
  padding: var(--spacing-16) 0;
  position: relative;
  overflow: hidden;
}

.reviews::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, 
    rgba(64, 130, 233, 0.03) 0%, 
    rgba(205, 177, 147, 0.03) 50%, 
    rgba(114, 110, 106, 0.02) 100%);
  z-index: 0;
}

.reviews .container {
  position: relative;
  z-index: 1;
}

/* Reviews Header */
.reviews__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-10);
  flex-wrap: wrap;
  gap: var(--spacing-6);
}

.reviews__summary {
  display: flex;
  align-items: center;
  gap: var(--spacing-8);
}

.reviews__score {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.9));
  padding: var(--spacing-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  transition: var(--transition-base);
  position: relative;
}

.reviews__score::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.reviews__score:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.score__value {
  font-size: var(--font-size-4xl);
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--spacing-2);
  text-shadow: 0 2px 4px rgba(64, 130, 233, 0.1);
}

.score__stars {
  display: flex;
  gap: 3px;
  margin-bottom: var(--spacing-1);
}

.score__stars i {
  color: #fbbf24;
  font-size: var(--font-size-base);
  filter: drop-shadow(0 1px 2px rgba(251, 191, 36, 0.3));
  transition: var(--transition-fast);
}

.score__stars i:hover {
  transform: scale(1.1);
}

.reviews__stats-compact {
  display: flex;
  gap: var(--spacing-5);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.7));
  padding: var(--spacing-4);
  border-radius: var(--radius-lg);
  min-width: 80px;
  box-shadow: var(--shadow-base);
  border: 1px solid rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(8px);
  transition: var(--transition-base);
  position: relative;
}

.stat-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-item::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

.stat-value {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--spacing-1);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  font-weight: 500;
}

/* Reviews Content */
.reviews__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
}

.reviews__tags {
  display: flex;
  justify-content: center;
  gap: var(--spacing-3);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-2);
}

.tag {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.85));
  color: var(--color-gray-700);
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  transition: var(--transition-base);
  border: 1px solid rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(5px);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.tag::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(64, 130, 233, 0.1), transparent);
  transition: var(--transition-base);
}

.tag:hover::before {
  left: 100%;
}

.tag:hover {
  background: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--color-primary);
}

/* Reviews Highlights */
.reviews__highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-6);
}

.review-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(255, 255, 255, 0.92));
  padding: var(--spacing-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  transition: var(--transition-base);
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  overflow: hidden;
}

.review-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.review-card:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.review-card__rating {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-4);
}

.rating-stars {
  display: flex;
  gap: 3px;
}

.rating-stars i {
  color: #fbbf24;
  font-size: var(--font-size-base);
  filter: drop-shadow(0 1px 2px rgba(251, 191, 36, 0.3));
  transition: var(--transition-fast);
}

.rating-stars i:hover {
  transform: scale(1.1);
}

.review-card__text {
  font-size: var(--font-size-base);
  line-height: 1.7;
  margin-bottom: var(--spacing-4);
  color: var(--color-gray-700);
  position: relative;
  font-style: italic;
}

.review-card__text::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: -10px;
  font-size: var(--font-size-3xl);
  color: var(--color-primary);
  opacity: 0.3;
  font-family: serif;
}

.review-card__text::after {
  content: '"';
  position: absolute;
  bottom: -5px;
  right: -5px;
  font-size: var(--font-size-3xl);
  color: var(--color-primary);
  opacity: 0.3;
  font-family: serif;
}

.review-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-3);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.review-card__author {
  font-weight: 700;
  color: var(--color-gray-700);
  font-size: var(--font-size-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.review-card__author::before {
  content: '👤';
  font-size: var(--font-size-sm);
}

.review-card__badge {
  background: var(--gradient-primary);
  color: var(--color-white);
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.review-card__badge::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: var(--transition-slow);
}

.review-card:hover .review-card__badge::before {
  left: 100%;
}

/* Versions Section */
.versions {
  background-color: var(--color-light);
}

.versions__container {
  display: grid;
  gap: var(--spacing-5);
}

.version {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--spacing-6);
  background: var(--color-white);
  padding: var(--spacing-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-base);
  transition: var(--transition-base);
}

.version:hover {
  box-shadow: var(--shadow-lg);
}

.version__info {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-width: 100px;
}

.version__number {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--spacing-1);
}

.version__date {
  font-size: var(--font-size-xs);
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-2);
}

.version__status {
  background: var(--gradient-primary);
  color: var(--color-white);
  padding: var(--spacing-1) var(--spacing-2);
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 600;
}

.version__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-3);
  color: var(--color-dark);
}

.version__changelog {
  list-style: none;
  margin-bottom: var(--spacing-4);
}

.version__changelog li {
  position: relative;
  padding-left: var(--spacing-5);
  margin-bottom: var(--spacing-1);
  color: var(--color-gray-700);
  line-height: 1.5;
  font-size: var(--font-size-sm);
}

.version__changelog li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 600;
}

.version__details {
  display: flex;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-4);
  flex-wrap: wrap;
}

.detail {
  display: flex;
  align-items: center;
  font-size: var(--font-size-xs);
  color: var(--color-gray-600);
}

.detail i {
  margin-right: var(--spacing-1);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
}

/* FAQ Section */
.faq__container {
  max-width: 800px;
  margin: 0 auto;
}

.faq__item {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-4);
  box-shadow: var(--shadow-base);
  overflow: hidden;
  transition: var(--transition-base);
}

.faq__item:hover {
  box-shadow: var(--shadow-md);
}

.faq__question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-6);
  cursor: pointer;
  user-select: none;
  transition: var(--transition-base);
}

.faq__question:hover {
  background-color: var(--color-gray-100);
}

.faq__question h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-dark);
}

.faq__question i {
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  transition: var(--transition-base);
}

.faq__item.active .faq__question i {
  transform: rotate(45deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.faq__item.active .faq__answer {
  max-height: 200px;
}

.faq__answer p {
  padding: 0 var(--spacing-6) var(--spacing-6);
  color: var(--color-gray-700);
  line-height: 1.7;
}

/* Footer */
.footer {
  background-color: var(--color-dark);
  color: var(--color-white);
  padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer__content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-12);
}

.footer__title {
  display: flex;
  align-items: center;
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-4);
}

.footer__logo {
  width: 24px;
  height: 24px;
  margin-right: var(--spacing-2);
}

.footer__description {
  margin-bottom: var(--spacing-6);
  color: var(--color-gray-400);
  line-height: 1.7;
}

.footer__social {
  display: flex;
  gap: var(--spacing-4);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  color: var(--color-white);
  text-decoration: none;
  transition: var(--transition-base);
}

.social-link:hover {
  background-color: var(--color-primary);
  transform: translateY(-2px);
}

.footer__subtitle {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-4);
  color: var(--color-white);
}

.footer__links {
  list-style: none;
}

.footer__links li {
  margin-bottom: var(--spacing-2);
}

.footer__links a {
  color: var(--color-gray-400);
  text-decoration: none;
  transition: var(--transition-base);
}

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

.footer__bottom {
  text-align: center;
  padding-top: var(--spacing-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-gray-500);
  font-size: var(--font-size-sm);
}

.footer__bottom p {
  margin-bottom: var(--spacing-2);
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: var(--spacing-6);
  right: var(--spacing-6);
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition-base);
  z-index: var(--z-fixed);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: var(--z-modal);
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
}

.modal__content {
  position: relative;
  margin: 5% auto;
  max-width: 90%;
  max-height: 90%;
}

.modal__image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.modal__close {
  position: absolute;
  top: -40px;
  right: 0;
  color: var(--color-white);
  font-size: var(--font-size-3xl);
  font-weight: bold;
  cursor: pointer;
  transition: var(--transition-base);
}

.modal__close:hover {
  color: var(--color-primary);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .features__container {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-5);
  }
}

@media (max-width: 768px) {
  /* Navigation */
  .nav__menu {
    position: fixed;
    left: -100%;
    top: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-white);
    flex-direction: column;
    justify-content: center;
    transition: var(--transition-base);
    z-index: var(--z-modal);
  }

  .nav__menu.show-menu {
    left: 0;
  }

  .nav__list {
    flex-direction: column;
    gap: var(--spacing-6);
    text-align: center;
  }

  .nav__link {
    font-size: var(--font-size-lg);
    padding: var(--spacing-4);
  }

  .nav__toggle,
  .nav__close {
    display: block;
  }

  .nav__close {
    position: absolute;
    top: var(--spacing-6);
    right: var(--spacing-6);
  }

  /* Hero */
  .hero {
    padding-top: 80px;
    padding-bottom: var(--spacing-10);
    min-height: auto;
  }

  .hero__container {
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
    text-align: center;
  }

  .hero__content {
    order: 2;
  }

  .hero__media {
    order: 1;
  }

  .hero__title {
    line-height: 1.2;
  }

  .hero__title-main {
    font-size: var(--font-size-2xl);
    line-height: 1.2;
  }

  .hero__title-effect {
    font-size: var(--font-size-2xl);
    transform: translate(1px, 1px);
    opacity: 0.2;
  }

  .hero__subtitle-en {
    font-size: var(--font-size-base);
  }

  .hero__features {
    grid-template-columns: 1fr;
    gap: var(--spacing-3);
  }

  .hero__feature {
    justify-content: center;
  }

  .hero__actions {
    align-items: center;
  }

  .hero__download {
    align-items: center;
  }

  .hero__quick-actions {
    justify-content: center;
  }

  .download-info {
    justify-content: center;
  }

  .hero__stats {
    justify-content: center;
    flex-wrap: wrap;
  }

  .hero__thumbnails {
    justify-content: center;
  }

  .hero__description {
    max-width: 100%;
  }

  /* Features responsive */
  .features__container {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-4);
  }

  /* Download info */
  .download-info {
    justify-content: center;
  }

  /* News */
  .news__item {
    grid-template-columns: 1fr;
    text-align: center;
  }

  /* Versions */
  .versions__container {
    gap: var(--spacing-4);
  }

  .version {
    grid-template-columns: 1fr;
    text-align: center;
    padding: var(--spacing-5);
    gap: var(--spacing-4);
  }

  .version__info {
    margin-bottom: var(--spacing-3);
  }

  .version__details {
    justify-content: center;
    gap: var(--spacing-3);
  }

  /* Back to top */
  .back-to-top {
    bottom: var(--spacing-4);
    right: var(--spacing-4);
    width: 45px;
    height: 45px;
  }
}

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

  .section {
    padding: var(--spacing-8) 0;
  }

  .section__title {
    font-size: var(--font-size-xl);
  }

  .hero__title {
    line-height: 1.3;
  }

  .hero__title-main {
    font-size: var(--font-size-xl);
    line-height: 1.3;
  }

  .hero__title-effect {
    display: none;
  }

  .hero__subtitle-en {
    font-size: var(--font-size-sm);
  }

  .hero__subtitle-tag {
    font-size: var(--font-size-xs);
  }

  .hero__features {
    grid-template-columns: 1fr;
    gap: var(--spacing-3);
  }

  .hero__feature {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3);
  }

  .hero__feature-icon {
    width: 36px;
    height: 36px;
  }

  .hero__stats {
    gap: var(--spacing-2);
  }

  .stat-card {
    padding: var(--spacing-3);
    min-width: 70px;
  }

  .stat-card__value {
    font-size: var(--font-size-lg);
  }

  .hero__thumbnails {
    gap: var(--spacing-1);
  }

  .hero__thumbnail {
    width: 45px;
    height: 30px;
  }

  .download-btn--primary {
    padding: var(--spacing-2) var(--spacing-4);
    gap: var(--spacing-1);
  }

  .download-btn__main {
    font-size: var(--font-size-sm);
  }

  .download-btn__sub {
    font-size: 10px;
  }

  .download-btn__icon {
    font-size: var(--font-size-sm);
  }

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

  .reviews__header {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-6);
  }

  .reviews__summary {
    flex-direction: column;
    gap: var(--spacing-4);
  }

  .reviews__stats-compact {
    justify-content: center;
  }

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

  .reviews {
    padding: var(--spacing-8) 0;
  }

  .reviews__header {
    margin-bottom: var(--spacing-6);
  }

  .reviews__content {
    gap: var(--spacing-4);
  }

  .score__value {
    font-size: var(--font-size-2xl);
  }

  .stat-value {
    font-size: var(--font-size-base);
  }

  .reviews__highlights {
    gap: var(--spacing-3);
  }

  .review-card {
    padding: var(--spacing-3);
  }

  .review-card__text {
    font-size: var(--font-size-xs);
  }

  /* Versions ultra-small screens */
  .versions__container {
    gap: var(--spacing-3);
  }

  .version {
    padding: var(--spacing-4);
    gap: var(--spacing-3);
  }

  .version__number {
    font-size: var(--font-size-lg);
  }

  .version__title {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-2);
  }

  .version__changelog {
    margin-bottom: var(--spacing-3);
  }

  .version__changelog li {
    font-size: var(--font-size-xs);
    padding-left: var(--spacing-4);
  }

  .version__details {
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-3);
  }

  /* Features ultra-small screens */
  .features__container {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-3);
  }

  .feature {
    padding: var(--spacing-6);
  }

  .feature__icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-4);
  }

  .feature__icon i {
    font-size: var(--font-size-xl);
  }

  .feature__title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-3);
  }

  .feature__description {
    font-size: var(--font-size-sm);
    line-height: 1.6;
  }

  .footer__content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* Very small screens (≤360px) */
@media (max-width: 360px) {
  .hero__title-effect {
    display: none;
  }

  .features__container {
    gap: var(--spacing-2);
  }

  .feature {
    padding: var(--spacing-4);
  }

  .feature__icon {
    width: 50px;
    height: 50px;
    margin-bottom: var(--spacing-3);
  }

  .feature__icon i {
    font-size: var(--font-size-lg);
  }

  .feature__title {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-2);
  }

  .feature__description {
    font-size: var(--font-size-xs);
    line-height: 1.5;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Scroll animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: var(--transition-slow);
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

/* Loading states */
.loading {
  opacity: 0.7;
  pointer-events: none;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles */
.nav__link:focus,
.download-btn:focus,
.back-to-top:focus,
.faq__question:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .header,
  .nav,
  .back-to-top,
  .modal {
    display: none !important;
  }
  
  .section {
    break-inside: avoid;
    page-break-inside: avoid;
  }
}