:root {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.72);
  --text: #1a2233;
  --text-muted: #5a6478;
  --primary: #3f6bff;
  --primary-dark: #2a4fd6;
  --accent: #8a5bff;
  --accent-2: #00d4ff;
  --border: #e3e8f2;
  --shadow: 0 8px 30px rgba(20, 40, 90, 0.08);
  --shadow-lg: 0 20px 60px rgba(20, 40, 90, 0.14);
  --radius: 14px;
  --radius-lg: 22px;
  --header-h: 72px;
  --gradient-hero: linear-gradient(135deg, #1a2a6c 0%, #3f6bff 45%, #8a5bff 100%);
  --gradient-soft: linear-gradient(135deg, rgba(63, 107, 255, 0.12), rgba(138, 91, 255, 0.12));
}

body.dark-mode {
  --bg: #0b1026;
  --surface: #141a33;
  --surface-glass: rgba(20, 26, 51, 0.72);
  --text: #e8ecf7;
  --text-muted: #9aa6c4;
  --primary: #6b8cff;
  --primary-dark: #4f6fe0;
  --accent: #a87bff;
  --accent-2: #38e1ff;
  --border: #232c4a;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.55);
  --gradient-hero: linear-gradient(135deg, #0b1026 0%, #1a2a6c 50%, #4a2a8a 100%);
  --gradient-soft: linear-gradient(135deg, rgba(107, 140, 255, 0.14), rgba(168, 123, 255, 0.14));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background 0.35s ease, color 0.35s ease;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 15% 0%, rgba(63, 107, 255, 0.10), transparent 60%),
    radial-gradient(ellipse 50% 40% at 85% 10%, rgba(138, 91, 255, 0.10), transparent 60%);
  pointer-events: none;
  z-index: -1;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.25s ease;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3, h4 {
  line-height: 1.35;
  color: var(--text);
  letter-spacing: -0.01em;
}

h1 {
  font-size: 2rem;
  font-weight: 800;
}

h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-top: 2.4rem;
  position: relative;
  padding-bottom: 10px;
}

h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-top: 1.6rem;
}

p {
  margin: 0.8rem 0;
}

ul, ol {
  padding-left: 1.4rem;
}

li {
  margin: 0.4rem 0;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: #fff;
  padding: 10px 16px;
  z-index: 999;
  border-radius: 0 0 10px 0;
}

.skip-link:focus {
  left: 12px;
  top: 12px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.35s ease, background 0.35s ease;
}

.site-header.is-sticky {
  box-shadow: var(--shadow);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 20px;
  min-height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-logo {
  display: block;
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.brand:hover .brand-logo {
  transform: rotate(72deg) scale(1.08);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-weight: 800;
  font-size: 1.15rem;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-slogan {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.main-nav {
  flex: 1;
}

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
}

.main-nav a {
  font-size: 0.92rem;
  color: var(--text);
  position: relative;
  padding: 4px 0;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 0.3s ease;
}

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

.main-nav a:hover::after {
  width: 100%;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-search {
  display: flex;
  align-items: center;
}

.site-search input {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: 10px 0 0 10px;
  padding: 8px 12px;
  font-size: 0.85rem;
  width: 168px;
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, width 0.3s ease;
}

.site-search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(63, 107, 255, 0.16);
  width: 200px;
}

.site-search button {
  border: 1px solid var(--primary);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  border-radius: 0 10px 10px 0;
  padding: 8px 14px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: filter 0.25s ease, transform 0.25s ease;
}

.site-search button:hover {
  filter: brightness(1.1);
}

.site-search button:active {
  transform: scale(0.97);
}

.theme-toggle,
.menu-toggle {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 10px;
  cursor: pointer;
  padding: 6px 10px;
  font-size: 1rem;
  transition: transform 0.3s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.theme-toggle:hover,
.menu-toggle:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(63, 107, 255, 0.2);
}

.theme-toggle:active {
  transform: scale(0.92) rotate(-12deg);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 10px;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.mobile-menu {
  border-top: 1px solid var(--border);
  padding: 10px 20px;
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.mobile-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-menu a {
  display: block;
  padding: 10px 0;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  transition: color 0.25s ease, padding-left 0.25s ease;
}

.mobile-menu a:hover {
  color: var(--primary);
  padding-left: 8px;
}

.breadcrumb {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--text-muted);
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 40px;
}

.hero {
  position: relative;
  margin: 10px 0 30px;
  background: var(--gradient-hero);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.18), transparent 45%),
    radial-gradient(circle at 80% 80%, rgba(0, 212, 255, 0.16), transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.hero-slider {
  position: relative;
  min-height: 420px;
  z-index: 1;
}

.hero-slide {
  display: none;
  grid-template-columns: 1fr 1.1fr;
  gap: 30px;
  align-items: center;
  padding: 36px;
  animation: fadeIn 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}

.hero-slide.is-active {
  display: grid;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.hero-visual {
  position: relative;
}

.hero-visual svg {
  width: 100%;
  height: auto;
  border-radius: 16px;
  display: block;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.hero-slide:hover .hero-visual svg {
  transform: scale(1.03) rotate(-0.6deg);
}

.hero-copy h1,
.hero-copy h2 {
  margin-top: 0;
  color: #ffffff;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.35);
}

.hero-copy h1::after,
.hero-copy h2::after {
  display: none;
}

.hero-copy p {
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.96rem;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: 12px;
  font-size: 0.92rem;
  font-weight: 600;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.3s ease, box-shadow 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  will-change: transform;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, #ffffff, #e8eeff);
  color: #1a2a6c;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.22);
}

.btn-primary:hover {
  background: #ffffff;
  color: #1a2a6c;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.3);
}

.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.55);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  border-color: #ffffff;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.18);
}

.hero-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 0 0 22px;
  position: relative;
  z-index: 2;
}

.hero-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  padding: 0;
  transition: transform 0.3s ease, background 0.3s ease, width 0.3s ease;
}

.hero-dots .dot:hover {
  background: rgba(255, 255, 255, 0.75);
}

.hero-dots .dot.is-active {
  background: #ffffff;
  width: 28px;
  border-radius: 6px;
}

.stats {
  margin: 20px 0 40px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.stat-item {
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s ease, border-color 0.35s ease;
}

.stat-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(63, 107, 255, 0.4);
}

.stat-num {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-variant-numeric: tabular-nums;
}

.stat-unit {
  font-size: 1.1rem;
  color: var(--accent);
  font-weight: 700;
}

.stat-item p {
  margin: 6px 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin: 28px 0;
  box-shadow: var(--shadow);
  transition: box-shadow 0.35s ease, border-color 0.35s ease;
  position: relative;
  overflow: hidden;
}

.section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--accent-2));
  opacity: 0;
  transition: opacity 0.4s ease;
}

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

.timeline {
  list-style: none;
  padding-left: 0;
  border-left: 3px solid transparent;
  border-image: linear-gradient(180deg, var(--primary), var(--accent)) 1;
  margin-left: 6px;
}

.timeline li {
  padding-left: 18px;
  position: relative;
  margin: 12px 0;
  transition: transform 0.3s ease;
}

.timeline li:hover {
  transform: translateX(4px);
}

.timeline li::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 10px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border: 2px solid var(--surface);
  transition: transform 0.3s ease;
}

.timeline li:hover::before {
  transform: scale(1.35);
}

.feature-list {
  list-style: none;
  padding-left: 0;
}

.feature-list li {
  padding: 12px 16px;
  margin: 8px 0;
  border-radius: 12px;
  background: var(--gradient-soft);
  border-left: 3px solid var(--accent);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-list li:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow);
}

.case-item {
  padding: 16px 0;
  border-bottom: 1px dashed var(--border);
  transition: transform 0.3s ease;
}

.case-item:hover {
  transform: translateX(4px);
}

.case-item:last-of-type {
  border-bottom: none;
}

blockquote {
  margin: 14px 0;
  padding: 16px 20px;
  border-radius: 12px;
  background: var(--gradient-soft);
  border-left: 4px solid var(--primary);
  color: var(--text-muted);
  font-style: normal;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

blockquote:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow);
}

.news-list {
  list-style: none;
  padding-left: 0;
}

.news-list li {
  padding: 14px 0;
  border-bottom: 1px dashed var(--border);
  transition: padding-left 0.3s ease;
}

.news-list li:hover {
  padding-left: 8px;
}

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

.news-list time {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.news-list h3 {
  margin: 4px 0;
  font-size: 1.05rem;
}

.article-card {
  padding: 20px;
  margin: 16px 0;
  border-radius: 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s ease, border-color 0.35s ease, background 0.35s ease;
  position: relative;
  overflow: hidden;
}

.article-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.18), transparent);
  transition: left 0.6s ease;
}

.article-card:hover::after {
  left: 120%;
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(63, 107, 255, 0.35);
}

.article-card h3 {
  margin-top: 0;
}

.article-card h3 a {
  color: var(--text);
  transition: color 0.25s ease;
}

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

.article-meta {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.read-more {
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.read-more::after {
  content: "→";
  transition: transform 0.3s ease;
}

.read-more:hover::after {
  transform: translateX(4px);
}

.faq-list details {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  margin: 10px 0;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-list details:hover {
  border-color: rgba(63, 107, 255, 0.35);
}

.faq-list details[open] {
  box-shadow: var(--shadow);
  border-color: rgba(63, 107, 255, 0.35);
}

.faq-list summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: color 0.25s ease;
}

.faq-list summary:hover {
  color: var(--primary);
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  font-size: 1.3rem;
  color: var(--primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-list details[open] summary::after {
  content: "−";
  transform: rotate(180deg);
}

.faq-list details p {
  color: var(--text-muted);
  margin-top: 10px;
  animation: fadeIn 0.35s ease;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.contact-item {
  background: var(--gradient-soft);
  border-radius: 14px;
  padding: 20px;
  border: 1px solid var(--border);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.contact-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.contact-item h3 {
  margin-top: 0;
}

.contact-item p {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.sitemap-list,
.friend-links {
  list-style: none;
  padding-left: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.sitemap-list a,
.friend-links a {
  font-size: 0.92rem;
  position: relative;
  padding: 2px 0;
}

.sitemap-list a::after,
.friend-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--primary);
  transition: width 0.3s ease;
}

.sitemap-list a:hover::after,
.friend-links a:hover::after {
  width: 100%;
}

.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding: 40px 20px;
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--accent-2));
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.footer-title {
  font-weight: 800;
  font-size: 1.1rem;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.footer-info h3 {
  font-size: 1rem;
  margin-top: 0;
}

.footer-info p {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.footer-meta {
  grid-column: 1 / -1;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.footer-meta p {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin: 4px 0;
}

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px) scale(0.9);
  transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), visibility 0.35s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.back-to-top:hover {
  transform: translateY(-4px) scale(1.06);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

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

@media (max-width: 960px) {
  .main-nav {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .hero-slide {
    grid-template-columns: 1fr;
    padding: 24px;
  }
  .hero-slider {
    min-height: auto;
  }
  .hero-copy h1 {
    font-size: 1.6rem;
  }
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-inner {
    grid-template-columns: 1fr;
  }
  .site-search input {
    width: 120px;
  }
  .site-search input:focus {
    width: 150px;
  }
  .section {
    padding: 26px;
  }
}

@media (max-width: 600px) {
  body {
    font-size: 15px;
  }
  h1 {
    font-size: 1.5rem;
  }
  h2 {
    font-size: 1.3rem;
  }
  .section {
    padding: 20px;
    border-radius: var(--radius);
  }
  .hero {
    border-radius: var(--radius);
  }
  .hero-slide {
    padding: 18px;
    gap: 18px;
  }
  .stat-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .site-search {
    display: none;
  }
  .header-inner {
    gap: 10px;
    padding: 0 14px;
  }
  .brand-slogan {
    display: none;
  }
  .breadcrumb {
    padding: 10px 14px;
  }
  main {
    padding: 0 14px 30px;
  }
  .btn {
    padding: 10px 18px;
    font-size: 0.88rem;
  }
  .back-to-top {
    right: 14px;
    bottom: 14px;
    width: 42px;
    height: 42px;
  }
  .article-card {
    padding: 16px;
  }
  .faq-list details {
    padding: 12px 14px;
  }
}