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

:root {
  --bg: #0f0f1a;
  --card: #1a1a2e;
  --card2: #222240;
  --text: #e8e8f0;
  --text2: #a0a0b8;
  --accent: #f5c518;
  --accent2: #ff6b6b;
  --border: #2a2a45;
  --radius: 12px;
  --glass-bg: rgba(26, 26, 46, 0.72);
  --glass-border: rgba(245, 197, 24, 0.12);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --gradient-hero: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  --gradient-accent: linear-gradient(135deg, #f5c518 0%, #ff6b6b 100%);
  --gradient-card: linear-gradient(145deg, rgba(34, 34, 64, 0.6) 0%, rgba(26, 26, 46, 0.9) 100%);
}

[data-theme="light"] {
  --bg: #f5f5fa;
  --card: #ffffff;
  --card2: #f0f0f5;
  --text: #1a1a2e;
  --text2: #666680;
  --accent: #d4a017;
  --accent2: #e05555;
  --border: #e0e0ea;
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(212, 160, 23, 0.15);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --gradient-hero: linear-gradient(135deg, #e8e8f5 0%, #dce4f5 50%, #c8d8f0 100%);
  --gradient-accent: linear-gradient(135deg, #d4a017 0%, #e05555 100%);
  --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.8) 0%, rgba(245, 245, 250, 0.95) 100%);
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  transition: background 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

button {
  font-family: inherit;
  cursor: pointer;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

header:hover {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  white-space: nowrap;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.03);
}

.logo svg {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.logo:hover svg {
  transform: rotate(-10deg) scale(1.1);
}

.logo span {
  color: var(--accent);
  transition: color 0.3s ease;
}

nav {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

nav a {
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--text2);
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

nav a:hover,
nav a.active {
  color: var(--accent);
  background: var(--card2);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 12px;
  gap: 6px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.search-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(245, 197, 24, 0.12);
}

.search-box input {
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 14px;
  width: 140px;
  font-family: inherit;
}

.search-box input::placeholder {
  color: var(--text2);
}

.search-box button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text2);
  font-size: 16px;
  padding: 2px;
  transition: transform 0.2s ease, color 0.2s ease;
}

.search-box button:hover {
  color: var(--accent);
  transform: scale(1.15);
}

.theme-toggle {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
}

.theme-toggle:hover {
  transform: rotate(25deg) scale(1.1);
  border-color: var(--accent);
  background: var(--card);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 24px;
  cursor: pointer;
  padding: 4px;
  transition: transform 0.2s ease;
}

.mobile-menu-btn:hover {
  transform: scale(1.1);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg);
  z-index: 99;
  padding: 20px;
  flex-direction: column;
  gap: 8px;
  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: 14px 16px;
  border-radius: 10px;
  font-size: 16px;
  color: var(--text2);
  border-bottom: 1px solid var(--border);
  transition: all 0.25s ease;
}

.mobile-nav a:hover {
  color: var(--accent);
  background: var(--card2);
  padding-left: 24px;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 60px 0 40px;
  background: var(--gradient-hero);
  transition: background 0.3s ease;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(245, 197, 24, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: floatOrb 8s ease-in-out infinite;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(107, 91, 255, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  animation: floatOrb 10s ease-in-out infinite reverse;
  pointer-events: none;
}

@keyframes floatOrb {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(-30px, 30px) scale(1.1);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-text h1 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  animation: fadeInUp 0.8s ease both;
}

.hero-text h1 em {
  font-style: normal;
  color: var(--accent);
  position: relative;
  display: inline-block;
}

.hero-text h1 em::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 100%;
  height: 8px;
  background: var(--gradient-accent);
  opacity: 0.25;
  border-radius: 4px;
  z-index: -1;
}

.hero-text p {
  font-size: 16px;
  color: var(--text2);
  margin-bottom: 24px;
  max-width: 520px;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-badge {
  display: inline-block;
  background: rgba(245, 197, 24, 0.15);
  color: var(--accent);
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 13px;
  margin-bottom: 16px;
  border: 1px solid rgba(245, 197, 24, 0.3);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: fadeInUp 0.8s ease both;
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 24px;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.stat-item {
  text-align: center;
  transition: transform 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-4px);
}

.stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 13px;
  color: var(--text2);
  margin-top: 2px;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInUp 0.8s ease 0.15s both;
}

.carousel {
  position: relative;
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.carousel:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 28px 72px rgba(0, 0, 0, 0.5);
}

.carousel-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.carousel-slide {
  min-width: 100%;
  position: relative;
}

.carousel-slide svg {
  width: 100%;
  height: auto;
  display: block;
}

.carousel-dots {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  border: none;
  padding: 0;
  transition: all 0.3s ease;
}

.carousel-dot:hover {
  background: rgba(255, 255, 255, 0.7);
}

.carousel-dot.active {
  background: var(--accent);
  width: 24px;
  border-radius: 4px;
}

section {
  padding: 60px 0;
  transition: background 0.3s ease;
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-header h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
  position: relative;
  display: inline-block;
}

.section-header h2 em {
  font-style: normal;
  color: var(--accent);
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 3px;
  background: var(--gradient-accent);
  border-radius: 2px;
}

.section-header p {
  color: var(--text2);
  font-size: 15px;
  max-width: 600px;
  margin: 8px auto 0;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.35s ease, border-color 0.35s ease;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
  border-color: var(--glass-border);
}

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

.card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card h3 .icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.card:hover h3 .icon {
  transform: scale(1.15) rotate(-5deg);
}

.card p {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
}

.card ul {
  list-style: none;
  margin-top: 10px;
}

.card ul li {
  font-size: 14px;
  color: var(--text2);
  padding: 4px 0;
  padding-left: 18px;
  position: relative;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.card ul li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
  transition: transform 0.2s ease;
}

.card ul li:hover {
  color: var(--text);
  padding-left: 22px;
}

.card ul li:hover::before {
  transform: translateX(2px);
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.article-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.35s ease, border-color 0.35s ease;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.article-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
  border-color: var(--glass-border);
}

.article-card:hover::after {
  transform: scaleX(1);
}

.article-card .meta {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--text2);
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.article-card .meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.article-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
  transition: color 0.2s ease;
}

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

.article-card p {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
  margin-bottom: 12px;
}

.read-more {
  font-size: 14px;
  color: var(--accent);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.25s ease, color 0.2s ease;
}

.read-more:hover {
  gap: 10px;
  color: var(--accent2);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.faq-item:hover {
  border-color: var(--glass-border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.faq-item.open {
  border-color: var(--accent);
  box-shadow: 0 4px 24px rgba(245, 197, 24, 0.1);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-family: inherit;
  transition: color 0.2s ease, background 0.2s ease;
}

.faq-question:hover {
  color: var(--accent);
  background: rgba(245, 197, 24, 0.04);
}

.faq-question .arrow {
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  font-size: 12px;
  color: var(--accent);
  flex-shrink: 0;
}

.faq-item.open .faq-question .arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s ease, padding 0.35s ease;
}

.faq-item.open .faq-answer {
  max-height: 600px;
  padding: 0 24px 20px;
}

.faq-answer p {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.8;
}

.howto-steps {
  max-width: 800px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 20px;
  margin-bottom: 24px;
  position: relative;
  transition: transform 0.3s ease;
}

.step:hover {
  transform: translateX(6px);
}

.step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 19px;
  top: 44px;
  bottom: -24px;
  width: 2px;
  background: var(--border);
}

.step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-accent);
  color: #1a1a2e;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.step:hover .step-num {
  transform: scale(1.15);
  box-shadow: 0 0 0 6px rgba(245, 197, 24, 0.15);
}

.step-content h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
}

.step-content p {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 12px;
  border-radius: 10px;
  transition: background 0.25s ease, transform 0.25s ease;
}

.contact-item:hover {
  background: var(--card2);
  transform: translateX(6px);
}

.contact-item .ci-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--card2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
  transition: transform 0.3s ease, background 0.3s ease;
}

.contact-item:hover .ci-icon {
  transform: scale(1.1) rotate(-5deg);
  background: rgba(245, 197, 24, 0.15);
}

.contact-item h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 2px;
}

.contact-item p {
  font-size: 14px;
  color: var(--text2);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.contact-form input,
.contact-form textarea {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(245, 197, 24, 0.12);
  transform: translateY(-1px);
}

.contact-form textarea {
  resize: vertical;
  min-height: 100px;
}

.contact-form button {
  background: var(--gradient-accent);
  color: #1a1a2e;
  border: none;
  border-radius: 8px;
  padding: 12px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  transition: opacity 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.contact-form button:hover {
  opacity: 0.92;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 197, 24, 0.3);
}

.contact-form button:active {
  transform: translateY(0);
}

.breadcrumb {
  display: flex;
  gap: 8px;
  font-size: 13px;
  color: var(--text2);
  padding: 16px 0;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--text2);
  transition: color 0.2s ease;
}

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

.breadcrumb span {
  color: var(--text);
}

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-accent);
  color: #1a1a2e;
  border: none;
  font-size: 20px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 99;
  box-shadow: 0 4px 16px rgba(245, 197, 24, 0.4);
  transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.back-to-top.show {
  display: flex;
  animation: popIn 0.3s ease;
}

@keyframes popIn {
  from {
    opacity: 0;
    transform: scale(0.5);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.back-to-top:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 8px 28px rgba(245, 197, 24, 0.55);
}

.back-to-top:active {
  transform: translateY(-2px) scale(1.02);
}

footer {
  background: var(--card);
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
  transition: background 0.3s ease;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 14px;
  position: relative;
  display: inline-block;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: 2px;
}

.footer-col p,
.footer-col a {
  font-size: 13px;
  color: var(--text2);
  line-height: 2;
}

.footer-col a {
  display: block;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-col a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text2);
}

.footer-bottom a {
  color: var(--text2);
  transition: color 0.2s ease;
}

.footer-bottom a:hover {
  color: var(--accent);
}

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: opacity, transform;
}

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

.tag {
  display: inline-block;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px 10px;
  font-size: 12px;
  color: var(--text2);
  margin: 2px;
  transition: all 0.25s ease;
}

.tag:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(245, 197, 24, 0.08);
  transform: translateY(-2px);
}

.highlight-box {
  background: linear-gradient(135deg, rgba(245, 197, 24, 0.1), rgba(255, 107, 107, 0.05));
  border: 1px solid rgba(245, 197, 24, 0.2);
  border-radius: var(--radius);
  padding: 24px;
  margin: 20px 0;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.highlight-box:hover {
  box-shadow: 0 8px 32px rgba(245, 197, 24, 0.12);
  transform: translateY(-2px);
}

.highlight-box h3 {
  color: var(--accent);
  margin-bottom: 10px;
  font-size: 17px;
}

.highlight-box p {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.8;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.team-card {
  text-align: center;
  padding: 24px;
}

.team-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 800;
  color: #1a1a2e;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease;
}

.team-card:hover .team-avatar {
  transform: scale(1.12) rotate(5deg);
  box-shadow: 0 8px 28px rgba(245, 197, 24, 0.3);
}

.team-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.team-card .role {
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 8px;
}

.team-card p {
  font-size: 13px;
  color: var(--text2);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 900px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text p {
    margin: 0 auto 24px;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .grid-3,
  .grid-4,
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

@media (max-width: 768px) {
  nav {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .search-box {
    display: none;
  }

  .hero-text h1 {
    font-size: 26px;
  }

  .grid-3,
  .grid-4,
  .team-grid {
    grid-template-columns: 1fr;
  }

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

  .section-header h2 {
    font-size: 22px;
  }

  .hero-stats {
    gap: 20px;
  }

  .stat-num {
    font-size: 22px;
  }

  .card {
    padding: 20px;
  }

  .article-card {
    padding: 20px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    height: 56px;
  }

  .logo {
    font-size: 17px;
  }

  .logo svg {
    width: 30px;
    height: 30px;
  }

  .hero {
    padding: 40px 0 30px;
  }

  .hero-text h1 {
    font-size: 22px;
  }

  section {
    padding: 40px 0;
  }

  .card {
    padding: 18px;
  }

  .article-card {
    padding: 18px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    font-size: 18px;
  }

  .faq-question {
    padding: 14px 18px;
    font-size: 15px;
  }

  .faq-item.open .faq-answer {
    padding: 0 18px 16px;
  }

  .step {
    gap: 14px;
  }

  .step-num {
    width: 34px;
    height: 34px;
    font-size: 14px;
  }

  .step:not(:last-child)::after {
    left: 16px;
    top: 38px;
  }
}

@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;
  }
}

::selection {
  background: rgba(245, 197, 24, 0.3);
  color: var(--text);
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
  transition: background 0.2s ease;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}
```