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

:root {
  --primary: #1a0b2e;
  --primary-light: #2d1b4e;
  --accent: #c9a227;
  --accent-light: #e0c45c;
  --accent-glow: rgba(201, 162, 39, 0.35);
  --text: #1e1e2f;
  --text-light: #4a4a6a;
  --bg: #faf8f5;
  --bg-alt: #f0ece6;
  --card-bg: #ffffff;
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.35);
  --border: #e0d8cc;
  --shadow: 0 4px 20px rgba(26, 11, 46, 0.08);
  --shadow-hover: 0 16px 40px rgba(26, 11, 46, 0.16);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
  --font-serif: "Songti SC", "SimSun", "Noto Serif SC", serif;
  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --gradient-banner: linear-gradient(135deg, #1a0b2e 0%, #2d1b4e 35%, #3d1f5c 55%, #1a0b2e 100%);
  --gradient-accent: linear-gradient(135deg, #c9a227 0%, #e0c45c 50%, #c9a227 100%);
  --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.6) 100%);
}

[data-theme="dark"] {
  --primary: #e0c45c;
  --primary-light: #c9a227;
  --accent: #e0c45c;
  --accent-light: #f0d878;
  --accent-glow: rgba(224, 196, 92, 0.3);
  --text: #e8e4dc;
  --text-light: #b0a89a;
  --bg: #0d0a14;
  --bg-alt: #1a1424;
  --card-bg: #1a1424;
  --glass-bg: rgba(26, 20, 36, 0.78);
  --glass-border: rgba(224, 196, 92, 0.15);
  --border: #2d2440;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.6);
  --gradient-banner: linear-gradient(135deg, #0d0a14 0%, #1a1424 35%, #2d1b4e 55%, #0d0a14 100%);
  --gradient-card: linear-gradient(145deg, rgba(26,20,36,0.9) 0%, rgba(26,20,36,0.6) 100%);
}

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

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

ul, ol {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(26, 11, 46, 0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  transition: background-color var(--transition), box-shadow var(--transition);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
  border-bottom: 1px solid rgba(201, 162, 39, 0.1);
}

.site-header.scrolled {
  background: rgba(26, 11, 46, 0.98);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  transition: transform var(--transition-fast);
}

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

.logo svg {
  width: 38px;
  height: 38px;
  filter: drop-shadow(0 0 8px var(--accent-glow));
  animation: logoPulse 4s ease-in-out infinite;
}

@keyframes logoPulse {
  0%, 100% { filter: drop-shadow(0 0 6px var(--accent-glow)); }
  50% { filter: drop-shadow(0 0 16px var(--accent-glow)); }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: #f0ece6;
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: 2px;
  transition: width var(--transition);
}

.nav-links a:hover {
  color: var(--accent-light);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-toggle,
.theme-toggle,
.menu-toggle {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #f0ece6;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.search-toggle::before,
.theme-toggle::before,
.menu-toggle::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, var(--accent-glow) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.search-toggle:hover,
.theme-toggle:hover,
.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

.search-toggle:hover::before,
.theme-toggle:hover::before,
.menu-toggle:hover::before {
  opacity: 1;
}

.menu-toggle {
  display: none;
}

/* ===== 搜索栏 ===== */
.search-bar {
  display: none;
  padding: 16px 0;
  background: rgba(45, 27, 78, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.search-bar.active {
  display: block;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.search-bar form {
  display: flex;
  gap: 10px;
  max-width: 640px;
  margin: 0 auto;
}

.search-bar input {
  flex: 1;
  padding: 12px 18px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
}

.search-bar input:focus {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-bar input::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

.search-bar button {
  padding: 12px 28px;
  background: var(--gradient-accent);
  color: #1a0b2e;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 16px var(--accent-glow);
}

.search-bar button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

/* ===== 移动端菜单 ===== */
.mobile-menu {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  width: 100%;
  height: calc(100vh - 68px);
  background: rgba(26, 11, 46, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 999;
  padding: 24px;
  overflow-y: auto;
}

.mobile-menu.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

.mobile-menu li {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-menu a {
  display: block;
  padding: 18px 0;
  color: #f0ece6;
  font-size: 1.05rem;
  transition: all var(--transition-fast);
}

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

/* ===== Banner轮播 ===== */
.hero-banner {
  position: relative;
  overflow: hidden;
  background: var(--gradient-banner);
  min-height: 520px;
  display: flex;
  align-items: center;
}

.hero-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(201, 162, 39, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 30%, rgba(224, 196, 92, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(45, 27, 78, 0.4) 0%, transparent 60%);
  pointer-events: none;
}

.hero-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 25%, rgba(201, 162, 39, 0.15) 1px, transparent 1px),
    radial-gradient(circle at 85% 65%, rgba(201, 162, 39, 0.1) 1px, transparent 1px),
    radial-gradient(circle at 45% 85%, rgba(224, 196, 92, 0.08) 1px, transparent 1px);
  background-size: 200px 200px, 250px 250px, 180px 180px;
  pointer-events: none;
  animation: starDrift 30s linear infinite;
}

@keyframes starDrift {
  from { background-position: 0 0, 0 0, 0 0; }
  to { background-position: 200px 200px, -250px 250px, 180px -180px; }
}

.hero-slides {
  position: relative;
  width: 100%;
  min-height: 520px;
  z-index: 1;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.9s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  pointer-events: none;
}

.hero-slide.active {
  opacity: 1;
  position: relative;
  pointer-events: auto;
}

.hero-content {
  max-width: 820px;
  text-align: center;
  color: #f0ece6;
}

.hero-content h1 {
  font-size: clamp(1.9rem, 4.5vw, 3.2rem);
  font-weight: 700;
  margin-bottom: 24px;
  line-height: 1.3;
  letter-spacing: 2px;
  background: linear-gradient(135deg, #e0c45c 0%, #f0d878 40%, #c9a227 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 40px rgba(201, 162, 39, 0.3);
}

.hero-content p {
  font-size: clamp(1rem, 1.9vw, 1.2rem);
  line-height: 1.9;
  color: rgba(240, 236, 230, 0.88);
  margin-bottom: 32px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.hero-content .cta-btn {
  display: inline-block;
  padding: 16px 44px;
  background: var(--gradient-accent);
  color: #1a0b2e;
  font-weight: 700;
  font-size: 1.05rem;
  border-radius: 50px;
  letter-spacing: 1px;
  transition: all var(--transition);
  box-shadow: 0 6px 24px var(--accent-glow);
  position: relative;
  overflow: hidden;
}

.hero-content .cta-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  transition: left 0.6s ease;
}

.hero-content .cta-btn:hover::before {
  left: 100%;
}

.hero-content .cta-btn:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 36px rgba(201, 162, 39, 0.55);
  color: #1a0b2e;
}

.hero-dots {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 10;
}

.hero-dots button {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition);
  padding: 0;
}

.hero-dots button.active {
  background: var(--accent);
  transform: scale(1.3);
  box-shadow: 0 0 16px var(--accent-glow);
}

.hero-dots button:hover {
  background: var(--accent-light);
  transform: scale(1.2);
}

/* ===== 面包屑 ===== */
.breadcrumb {
  padding: 18px 0;
  font-size: 0.88rem;
  color: var(--text-light);
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.breadcrumb li::after {
  content: '/';
  margin-left: 6px;
  color: var(--border);
}

.breadcrumb li:last-child::after {
  content: '';
}

.breadcrumb a {
  color: var(--text-light);
  transition: color var(--transition-fast);
}

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

/* ===== 数字动画统计 ===== */
.stats-section {
  padding: 56px 0;
  background: var(--bg-alt);
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.3;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 28px;
  text-align: center;
}

.stat-item {
  padding: 32px 24px;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

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

.stat-item:hover::before {
  opacity: 1;
}

.stat-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(201, 162, 39, 0.3);
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 700;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-top: 8px;
  font-weight: 500;
}

/* ===== 通用区块 ===== */
.section {
  padding: 72px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.3rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  position: relative;
  display: inline-block;
  letter-spacing: 1px;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 64px;
  height: 3px;
  background: var(--gradient-accent);
  border-radius: 3px;
  box-shadow: 0 0 12px var(--accent-glow);
}

.section-header p {
  color: var(--text-light);
  max-width: 680px;
  margin: 24px auto 0;
  font-size: 1.02rem;
  line-height: 1.9;
}

/* ===== 品牌介绍 ===== */
.brand-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.brand-intro-text h3 {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.brand-intro-text p {
  margin-bottom: 18px;
  color: var(--text-light);
  line-height: 1.95;
  font-size: 0.98rem;
}

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

.brand-intro-visual svg {
  width: 100%;
  max-width: 420px;
  filter: drop-shadow(0 8px 32px var(--accent-glow));
  animation: floatSlow 6s ease-in-out infinite;
}

@keyframes floatSlow {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ===== 卡片网格 ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius);
  padding: 36px 30px;
  box-shadow: var(--shadow);
  border: 1px solid var(--glass-border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

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

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

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(201, 162, 39, 0.25);
}

.card-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 22px;
  filter: drop-shadow(0 4px 12px var(--accent-glow));
  transition: transform var(--transition);
}

.card:hover .card-icon {
  transform: scale(1.1) rotate(-3deg);
}

.card h3 {
  font-size: 1.2rem;
  margin-bottom: 14px;
  color: var(--text);
  font-weight: 600;
}

.card p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.85;
}

/* ===== 解决方案 ===== */
.solution-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 26px;
}

.solution-item {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius);
  padding: 32px 28px;
  border-left: 4px solid var(--accent);
  box-shadow: var(--shadow);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.solution-item::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.solution-item:hover::after {
  opacity: 1;
}

.solution-item:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-hover);
}

.solution-item h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  color: var(--text);
  font-weight: 600;
}

.solution-item p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.85;
}

/* ===== 文章列表 ===== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.article-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--glass-border);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(201, 162, 39, 0.25);
}

.article-thumb {
  width: 100%;
  height: 180px;
  background: linear-gradient(135deg, #2d1b4e 0%, #1a0b2e 50%, #3d1f5c 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.article-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 40%, rgba(201, 162, 39, 0.15) 0%, transparent 60%);
}

.article-thumb svg {
  width: 64px;
  height: 64px;
  opacity: 0.7;
  position: relative;
  z-index: 1;
  transition: transform var(--transition);
}

.article-card:hover .article-thumb svg {
  transform: scale(1.15) rotate(5deg);
}

.article-body {
  padding: 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.article-meta {
  font-size: 0.82rem;
  color: var(--text-light);
  margin-bottom: 12px;
  display: flex;
  gap: 16px;
}

.article-meta span:first-child {
  color: var(--accent);
  font-weight: 600;
}

.article-body h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
  line-height: 1.55;
  color: var(--text);
  font-weight: 600;
  transition: color var(--transition-fast);
}

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

.article-body p {
  color: var(--text-light);
  font-size: 0.92rem;
  line-height: 1.85;
  flex: 1;
}

.read-more {
  display: inline-block;
  margin-top: 18px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  transition: all var(--transition-fast);
}

.read-more:hover {
  color: var(--accent-light);
  transform: translateX(4px);
}

/* ===== 客户评价 ===== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 26px;
}

.testimonial {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--glass-border);
  position: relative;
  transition: all var(--transition);
}

.testimonial:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.testimonial::before {
  content: '"';
  position: absolute;
  top: 16px;
  left: 22px;
  font-size: 3.5rem;
  color: var(--accent);
  opacity: 0.2;
  font-family: var(--font-serif);
  line-height: 1;
}

.testimonial p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.95;
  margin-bottom: 20px;
  padding-top: 20px;
  position: relative;
  z-index: 1;
}

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

.testimonial-role {
  font-size: 0.82rem;
  color: var(--text-light);
  margin-top: 2px;
}

/* ===== FAQ手风琴 ===== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  border: 1px solid var(--glass-border);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}

.faq-item:hover {
  border-color: rgba(201, 162, 39, 0.25);
}

.faq-item.open {
  border-color: rgba(201, 162, 39, 0.35);
  box-shadow: 0 8px 28px var(--accent-glow);
}

.faq-question {
  width: 100%;
  padding: 22px 26px;
  background: none;
  border: none;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: all var(--transition-fast);
  font-family: inherit;
}

.faq-question:hover {
  color: var(--accent);
}

.faq-question .arrow {
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--accent);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s ease, padding 0.45s ease;
  padding: 0 26px;
}

.faq-item.open .faq-answer {
  max-height: 800px;
  padding: 0 26px 24px;
}

.faq-answer p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.95;
}

/* ===== HowTo教程 ===== */
.howto-steps {
  max-width: 820px;
  margin: 0 auto;
  counter-reset: step-counter;
}

.howto-step {
  position: relative;
  padding-left: 72px;
  padding-bottom: 36px;
  counter-increment: step-counter;
}

.howto-step::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0;
  width: 48px;
  height: 48px;
  background: var(--gradient-accent);
  color: #1a0b2e;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.15rem;
  box-shadow: 0 4px 16px var(--accent-glow);
  transition: transform var(--transition);
}

.howto-step:hover::before {
  transform: scale(1.1);
}

.howto-step::after {
  content: '';
  position: absolute;
  left: 23px;
  top: 52px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  opacity: 0.3;
}

.howto-step:last-child::after {
  display: none;
}

.howto-step h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
  color: var(--text);
  font-weight: 600;
}

.howto-step p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.9;
}

/* ===== 新闻中心 ===== */
.news-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 26px;
}

.news-item {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.news-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}

.news-item:hover::before {
  transform: scaleY(1);
}

.news-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.news-date {
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 10px;
}

.news-item h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
  color: var(--text);
  font-weight: 600;
  line-height: 1.5;
}

.news-item p {
  color: var(--text-light);
  font-size: 0.92rem;
  line-height: 1.85;
}

/* ===== 联系方式 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 26px;
}

.contact-item {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--glass-border);
  transition: all var(--transition);
}

.contact-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(201, 162, 39, 0.3);
}

.contact-item svg {
  width: 44px;
  height: 44px;
  margin: 0 auto 18px;
  filter: drop-shadow(0 4px 12px var(--accent-glow));
  transition: transform var(--transition);
}

.contact-item:hover svg {
  transform: scale(1.1);
}

.contact-item h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
  color: var(--text);
  font-weight: 600;
}

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

/* ===== 页脚 ===== */
.site-footer {
  background: var(--gradient-banner);
  color: rgba(240, 236, 230, 0.8);
  padding: 72px 0 36px;
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.4;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 44px;
  margin-bottom: 44px;
}

.footer-col h4 {
  color: var(--accent);
  font-size: 1.05rem;
  margin-bottom: 18px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

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

.footer-col li {
  margin-bottom: 12px;
}

.footer-col a {
  color: rgba(240, 236, 230, 0.7);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

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

.footer-col p {
  font-size: 0.9rem;
  line-height: 1.85;
  margin-bottom: 10px;
  color: rgba(240, 236, 230, 0.7);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 28px;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(240, 236, 230, 0.5);
  line-height: 1.8;
}

.footer-bottom a {
  color: rgba(240, 236, 230, 0.7);
  transition: color var(--transition-fast);
}

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

/* ===== 返回顶部 ===== */
.back-to-top {
  position: fixed;
  bottom: 36px;
  right: 36px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--gradient-accent);
  color: #1a0b2e;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 24px var(--accent-glow);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  z-index: 900;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-6px) scale(1.08);
  box-shadow: 0 12px 36px rgba(201, 162, 39, 0.55);
}

/* ===== 滚动动画 ===== */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .brand-intro {
    gap: 40px;
  }

  .nav-links {
    gap: 20px;
  }

  .nav-links a {
    font-size: 0.9rem;
  }
}

@media (max-width: 900px) {
  .brand-intro {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .brand-intro-visual {
    order: -1;
  }

  .nav-links {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .hero-banner,
  .hero-slides {
    min-height: 460px;
  }

  .section {
    padding: 56px 0;
  }

  .section-header {
    margin-bottom: 44px;
  }
}

@media (max-width: 600px) {
  html {
    font-size: 15px;
  }

  .container {
    padding: 0 16px;
  }

  .hero-banner,
  .hero-slides {
    min-height: 420px;
  }

  .hero-slide {
    padding: 60px 16px;
  }

  .hero-content h1 {
    font-size: 1.65rem;
    letter-spacing: 1px;
  }

  .hero-content p {
    font-size: 0.95rem;
  }

  .hero-content .cta-btn {
    padding: 14px 32px;
    font-size: 0.95rem;
  }

  .section {
    padding: 44px 0;
  }

  .section-header h2 {
    font-size: 1.4rem;
  }

  .stat-number {
    font-size: 2rem;
  }

  .stat-item {
    padding: 24px 18px;
  }

  .card {
    padding: 28px 22px;
  }

  .solution-item {
    padding: 26px 22px;
  }

  .howto-step {
    padding-left: 60px;
  }

  .howto-step::before {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .howto-step::after {
    left: 19px;
    top: 44px;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
  }

  .footer-grid {
    gap: 32px;
  }

  .faq-question {
    padding: 18px 20px;
    font-size: 0.95rem;
  }

  .faq-answer {
    padding: 0 20px;
  }

  .faq-item.open .faq-answer {
    padding: 0 20px 20px;
  }
}

/* ===== 无障碍与打印 ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

@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;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-header,
  .mobile-menu,
  .back-to-top,
  .hero-dots,
  .search-bar {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  .hero-banner {
    background: #fff;
    min-height: auto;
  }

  .hero-content h1 {
    -webkit-text-fill-color: #000;
    color: #000;
  }

  .hero-slide {
    position: relative;
    opacity: 1;
    display: block;
  }

  .section {
    padding: 24px 0;
    page-break-inside: avoid;
  }
}
```