:root {
  --bg-primary: #f4f6fb;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e9edf6;
  --bg-glass: rgba(255, 255, 255, 0.72);
  --text-primary: #0a0f1e;
  --text-secondary: #3a4256;
  --text-muted: #6b7280;
  --brand-primary: #1a3a8f;
  --brand-secondary: #0f6b4f;
  --brand-accent: #d4421e;
  --brand-gold: #c9a227;
  --border-color: #dde3ee;
  --border-glass: rgba(255, 255, 255, 0.35);
  --shadow-sm: 0 1px 3px rgba(10, 15, 30, 0.06);
  --shadow-md: 0 4px 16px rgba(10, 15, 30, 0.08);
  --shadow-lg: 0 8px 32px rgba(10, 15, 30, 0.12);
  --shadow-xl: 0 20px 60px rgba(10, 15, 30, 0.18);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --gradient-brand: linear-gradient(135deg, #d4421e 0%, #ff6b4a 100%);
  --gradient-hero: linear-gradient(135deg, #0a0f1e 0%, #1a3a8f 55%, #0f6b4f 100%);
  --gradient-card: linear-gradient(135deg, rgba(26, 58, 143, 0.06) 0%, rgba(15, 107, 79, 0.06) 100%);
}

[data-theme="dark"] {
  --bg-primary: #0a0f1e;
  --bg-secondary: #131a2e;
  --bg-tertiary: #1c2540;
  --bg-glass: rgba(19, 26, 46, 0.72);
  --text-primary: #f0f2f8;
  --text-secondary: #c8cfe0;
  --text-muted: #8b95ad;
  --brand-primary: #4a7aff;
  --brand-secondary: #2ecc9a;
  --brand-accent: #ff6b4a;
  --brand-gold: #e8c547;
  --border-color: #2a3550;
  --border-glass: rgba(255, 255, 255, 0.08);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.6);
  --gradient-brand: linear-gradient(135deg, #ff6b4a 0%, #ff9a6b 100%);
  --gradient-hero: linear-gradient(135deg, #05070f 0%, #16234d 55%, #0a3d2e 100%);
  --gradient-card: linear-gradient(135deg, rgba(74, 122, 255, 0.08) 0%, rgba(46, 204, 154, 0.08) 100%);
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.75;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--brand-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--brand-accent);
}

img,
svg {
  max-width: 100%;
  display: block;
}

ul,
ol {
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.4rem;
}

::selection {
  background: var(--brand-accent);
  color: #fff;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--brand-primary);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), background var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--text-primary);
  flex-shrink: 0;
}

.logo svg {
  width: 40px;
  height: 40px;
  transition: transform var(--transition);
}

.logo:hover svg {
  transform: rotate(-6deg) scale(1.08);
}

.logo span {
  letter-spacing: -0.5px;
}

.logo .brand-accent {
  color: var(--brand-accent);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.main-nav a {
  position: relative;
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
  white-space: nowrap;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: 999px;
  transform: translateX(-50%);
  transition: width var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
  background: var(--bg-tertiary);
  color: var(--brand-primary);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 60%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-tertiary);
  border-radius: 999px;
  padding: 0.25rem 0.25rem 0.25rem 1rem;
  border: 1px solid transparent;
  transition: border var(--transition), box-shadow var(--transition);
}

.search-box:focus-within {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 4px rgba(26, 58, 143, 0.12);
}

.search-box input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 0.88rem;
  color: var(--text-primary);
  width: 140px;
  font-family: inherit;
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-box button {
  background: var(--gradient-brand);
  color: #fff;
  border: none;
  border-radius: 999px;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

.search-box button:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 14px rgba(212, 66, 30, 0.4);
}

.icon-btn {
  background: var(--bg-tertiary);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.icon-btn:hover {
  background: var(--brand-primary);
  color: #fff;
  transform: rotate(12deg) scale(1.06);
}

.mobile-menu-btn {
  display: none;
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-xl);
  padding: 1rem 1.5rem;
  flex-direction: column;
  gap: 0.25rem;
  z-index: 999;
  max-height: calc(100vh - 68px);
  overflow-y: auto;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  color: var(--text-secondary);
}

.mobile-nav a:hover {
  background: var(--bg-tertiary);
  color: var(--brand-primary);
}

.breadcrumb {
  padding: 1rem 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.breadcrumb ol {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.breadcrumb li {
  margin: 0;
}

.breadcrumb li + li::before {
  content: "/";
  margin: 0 0.4rem;
  color: var(--border-color);
}

.hero {
  position: relative;
  background: var(--gradient-hero);
  color: #fff;
  padding: 4.5rem 0 4rem;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -5%;
  width: 640px;
  height: 640px;
  background: radial-gradient(circle, rgba(212, 66, 30, 0.3) 0%, transparent 68%);
  border-radius: 50%;
  pointer-events: none;
  animation: floatGlow 9s ease-in-out infinite;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, rgba(15, 107, 79, 0.32) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: floatGlow 12s ease-in-out infinite reverse;
}

@keyframes floatGlow {
  0%, 100% {
    transform: translate(0, 0) scale(1);
    opacity: 0.9;
  }
  50% {
    transform: translate(-24px, 24px) scale(1.12);
    opacity: 1;
  }
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: 2.6rem;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 1.2rem;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.25);
}

.hero-content h1 .highlight {
  background: linear-gradient(90deg, #ffb347 0%, #ff6b4a 60%, #ff3d6e 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 1.08rem;
  color: rgba(255, 255, 255, 0.86);
  margin-bottom: 1.8rem;
  max-width: 540px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.hero-badge {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  padding: 0.35rem 1rem;
  font-size: 0.82rem;
  font-weight: 500;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: all var(--transition);
}

.hero-badge:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  font-family: inherit;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, 0.35) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform 0.6s ease;
}

.btn:hover::after {
  transform: translateX(120%);
}

.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: 0 4px 20px rgba(212, 66, 30, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 32px rgba(212, 66, 30, 0.55);
  color: #fff;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: #fff;
  color: #fff;
  transform: translateY(-3px);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-visual svg {
  width: 100%;
  max-width: 460px;
  height: auto;
  filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.35));
  animation: heroFloat 6s ease-in-out infinite;
}

@keyframes heroFloat {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-14px);
  }
}

.stats-bar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 1.8rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
}

.stat-item {
  padding: 0.5rem;
  border-radius: var(--radius-md);
  transition: background var(--transition), transform var(--transition);
}

.stat-item:hover {
  background: var(--bg-tertiary);
  transform: translateY(-3px);
}

.stat-item .stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.stat-item .stat-label {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.section {
  padding: 4.5rem 0;
  position: relative;
}

.section-alt {
  background: var(--bg-secondary);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 0.8rem;
  color: var(--text-primary);
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.02rem;
}

.section-tag {
  display: inline-block;
  background: var(--bg-tertiary);
  color: var(--brand-primary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 0.8rem;
  letter-spacing: 0.5px;
  border: 1px solid var(--border-color);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-text h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 0.98rem;
}

.about-list {
  list-style: none;
  padding: 0;
  margin-top: 1.5rem;
}

.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  margin-bottom: 0.9rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius-sm);
  background: var(--gradient-card);
  border: 1px solid transparent;
  transition: all var(--transition);
}

.about-list li:hover {
  border-color: var(--border-color);
  transform: translateX(4px);
}

.about-list li svg {
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.about-visual svg {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  filter: drop-shadow(0 16px 40px rgba(10, 15, 30, 0.14));
  transition: transform var(--transition-slow);
}

.about-visual svg:hover {
  transform: scale(1.03) rotate(1deg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}

.feature-card {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem 1.8rem;
  transition: all var(--transition-slow);
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.feature-card::after {
  content: "";
  position: absolute;
  top: -60%;
  right: -30%;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(26, 58, 143, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

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

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

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.2rem;
  color: var(--brand-primary);
  transition: all var(--transition);
}

.feature-card:hover .feature-icon {
  background: var(--gradient-brand);
  color: #fff;
  transform: scale(1.1) rotate(-6deg);
  border-color: transparent;
  box-shadow: 0 8px 24px rgba(212, 66, 30, 0.35);
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.8rem;
}

.article-card {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  transition: all var(--transition-slow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.article-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gradient-brand);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition-slow);
}

.article-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: transparent;
}

.article-card:hover::before {
  transform: scaleY(1);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
}

.article-meta span {
  background: var(--bg-tertiary);
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  color: var(--brand-primary);
  font-weight: 500;
}

.article-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.7rem;
  color: var(--text-primary);
  line-height: 1.4;
  transition: color var(--transition);
}

.article-card:hover h3 {
  color: var(--brand-primary);
}

.article-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  flex: 1;
  margin-bottom: 1.2rem;
}

.article-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--brand-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: gap var(--transition), color var(--transition);
}

.article-link:hover {
  gap: 0.55rem;
  color: var(--brand-accent);
}

.howto-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.2rem;
  counter-reset: step;
}

.howto-step {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.2rem;
  text-align: center;
  position: relative;
  transition: all var(--transition-slow);
}

.howto-step:hover {
  border-color: var(--brand-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.howto-step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin: 0 auto 0.8rem;
  font-size: 1rem;
  box-shadow: 0 4px 14px rgba(212, 66, 30, 0.35);
  transition: transform var(--transition);
}

.howto-step:hover .howto-step-number {
  transform: scale(1.15) rotate(8deg);
}

.howto-step h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.howto-step p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 0.8rem;
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--brand-primary);
}

.faq-item.open {
  border-color: var(--brand-primary);
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 1.2rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  transition: background var(--transition);
}

.faq-question:hover {
  background: var(--bg-tertiary);
}

.faq-question svg {
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--text-muted);
}

.faq-item.open .faq-question svg {
  transform: rotate(180deg);
  color: var(--brand-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 1.5rem;
}

.faq-item.open .faq-answer {
  max-height: 600px;
  padding: 0 1.5rem 1.3rem;
}

.faq-answer p {
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}

.testimonial-card {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  transition: all var(--transition-slow);
  overflow: hidden;
}

.testimonial-card::before {
  content: "\201C";
  position: absolute;
  top: -10px;
  right: 20px;
  font-size: 6rem;
  font-family: Georgia, serif;
  color: var(--brand-primary);
  opacity: 0.08;
  line-height: 1;
  pointer-events: none;
}

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

.testimonial-stars {
  display: flex;
  gap: 0.2rem;
  margin-bottom: 1rem;
  color: var(--brand-gold);
}

.testimonial-text {
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.2rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(212, 66, 30, 0.3);
}

.testimonial-author-info .name {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text-primary);
}

.testimonial-author-info .role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.news-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.news-item {
  display: flex;
  gap: 1.2rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all var(--transition-slow);
}

.news-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateX(6px);
  border-color: var(--brand-primary);
}

.news-date {
  flex-shrink: 0;
  text-align: center;
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.6rem 0.8rem;
  min-width: 64px;
  transition: all var(--transition);
}

.news-item:hover .news-date {
  background: var(--gradient-brand);
  border-color: transparent;
}

.news-date .day {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--brand-primary);
  line-height: 1.1;
  transition: color var(--transition);
}

.news-item:hover .news-date .day,
.news-item:hover .news-date .month {
  color: #fff;
}

.news-date .month {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  transition: color var(--transition);
}

.news-content h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
  transition: color var(--transition);
}

.news-item:hover .news-content h3 {
  color: var(--brand-primary);
}

.news-content p {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
  margin-bottom: 3rem;
}

.contact-card {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  text-align: center;
  transition: all var(--transition-slow);
  overflow: hidden;
}

.contact-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-card);
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}

.contact-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
  border-color: var(--brand-primary);
}

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

.contact-card svg {
  margin: 0 auto 1rem;
  color: var(--brand-primary);
  transition: transform var(--transition);
  position: relative;
  z-index: 1;
}

.contact-card:hover svg {
  transform: scale(1.15) rotate(-6deg);
}

.contact-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  position: relative;
  z-index: 1;
}

.contact-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
}

.site-footer {
  background: #0a0f1e;
  color: #c8cfe0;
  padding: 3.5rem 0 2rem;
  font-size: 0.88rem;
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(26, 58, 143, 0.25) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
  position: relative;
  z-index: 1;
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: #8b95ad;
  line-height: 1.7;
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col li {
  margin-bottom: 0.6rem;
}

.footer-col a {
  color: #8b95ad;
  font-size: 0.86rem;
  transition: all var(--transition);
  display: inline-block;
}

.footer-col a:hover {
  color: #fff;
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1.8rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.82rem;
  color: #6b7280;
  position: relative;
  z-index: 1;
}

.footer-bottom-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
}

.footer-bottom-links a {
  color: #6b7280;
  transition: color var(--transition);
}

.footer-bottom-links a:hover {
  color: #fff;
}

.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #fff;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px) scale(0.9);
  transition: all var(--transition);
  z-index: 900;
}

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

.back-to-top:hover {
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 12px 36px rgba(212, 66, 30, 0.5);
}

.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .hero-visual {
    display: none;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .howto-steps {
    grid-template-columns: repeat(3, 1fr);
  }
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  .main-nav {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }
  .search-box input {
    width: 100px;
  }
  .hero {
    padding: 3rem 0 2.8rem;
  }
  .hero-content h1 {
    font-size: 1.9rem;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .articles-grid {
    grid-template-columns: 1fr;
  }
  .howto-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .news-list {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.8rem;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .section {
    padding: 3rem 0;
  }
  .section-header h2 {
    font-size: 1.6rem;
  }
  .section-header {
    margin-bottom: 2.2rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }
  .search-box {
    display: none;
  }
  .hero-content h1 {
    font-size: 1.6rem;
  }
  .hero-content p {
    font-size: 0.98rem;
  }
  .howto-steps {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .stat-item .stat-number {
    font-size: 1.8rem;
  }
  .btn {
    padding: 0.75rem 1.4rem;
    font-size: 0.88rem;
  }
  .back-to-top {
    bottom: 1.2rem;
    right: 1.2rem;
    width: 42px;
    height: 42px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .fade-in {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-header,
  .back-to-top,
  .mobile-nav,
  .hero-visual {
    display: none;
  }
  body {
    background: #fff;
    color: #000;
  }
  .section {
    padding: 1rem 0;
  }
  a {
    color: #000;
  }
}