:root {
  --primary: #ff6b9d;
  --primary-dark: #e0558a;
  --primary-light: #ffe4ee;
  --secondary: #6c5ce7;
  --accent: #fdcb6e;
  --bg: #fef9fb;
  --bg-card: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.72);
  --bg-glass-strong: rgba(255, 255, 255, 0.88);
  --text: #2d3436;
  --text-light: #636e72;
  --border: #f0e6ec;
  --border-soft: rgba(255, 107, 157, 0.14);
  --shadow: 0 4px 20px rgba(255, 107, 157, 0.08);
  --shadow-lg: 0 12px 36px rgba(255, 107, 157, 0.16);
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 22px;
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --header-h: 68px;
  --gradient-main: linear-gradient(120deg, #ff6b9d 0%, #6c5ce7 100%);
  --gradient-soft: linear-gradient(135deg, #ff6b9d 0%, #fd79a8 100%);
  --gradient-alt: linear-gradient(120deg, #6c5ce7 0%, #00b894 100%);
}

[data-theme="dark"] {
  --primary: #ff8fb3;
  --primary-dark: #ff6b9d;
  --primary-light: #3d2a36;
  --secondary: #a29bfe;
  --accent: #ffeaa7;
  --bg: #16162a;
  --bg-card: #22223c;
  --bg-glass: rgba(34, 34, 60, 0.72);
  --bg-glass-strong: rgba(34, 34, 60, 0.9);
  --text: #eaeaf2;
  --text-light: #a8a8c0;
  --border: #34345a;
  --border-soft: rgba(255, 143, 179, 0.2);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.32);
  --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.44);
  --gradient-main: linear-gradient(120deg, #ff8fb3 0%, #a29bfe 100%);
  --gradient-soft: linear-gradient(135deg, #ff8fb3 0%, #ff6b9d 100%);
  --gradient-alt: linear-gradient(120deg, #a29bfe 0%, #55efc4 100%);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
  transition: background 0.4s ease, color 0.4s ease;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  top: -30%;
  left: -20%;
  width: 60%;
  height: 60%;
  background: radial-gradient(circle, rgba(255, 107, 157, 0.1) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: "";
  position: fixed;
  bottom: -30%;
  right: -20%;
  width: 60%;
  height: 60%;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.09) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

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

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

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

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

li {
  margin-bottom: 0.4em;
}

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

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

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--primary), var(--secondary));
  border-radius: 6px;
  border: 2px solid var(--bg);
}

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

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.site-header::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-main);
  opacity: 0.5;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text);
  white-space: nowrap;
  flex-shrink: 0;
  transition: var(--transition);
}

.logo:hover {
  transform: scale(1.04);
}

.logo svg {
  width: 36px;
  height: 36px;
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.logo:hover svg {
  transform: rotate(-12deg) scale(1.08);
}

.logo span {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-menu li {
  margin: 0;
}

.nav-menu a {
  display: block;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-light);
  white-space: nowrap;
  position: relative;
  transition: var(--transition);
}

.nav-menu a::before {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%;
  height: 2px;
  border-radius: 2px;
  background: var(--gradient-main);
  transition: transform 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-menu a:hover::before,
.nav-menu a.active::before {
  transform: translateX(-50%) scaleX(1);
}

[data-theme="dark"] .nav-menu a:hover,
[data-theme="dark"] .nav-menu a.active {
  background: rgba(255, 143, 179, 0.14);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-box input {
  width: 160px;
  padding: 8px 12px 8px 34px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.85rem;
  outline: none;
  transition: var(--transition);
  font-family: inherit;
}

.search-box input::placeholder {
  color: var(--text-light);
  opacity: 0.7;
}

.search-box input:focus {
  width: 200px;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 107, 157, 0.15);
  background: var(--bg-card);
}

.search-box svg {
  position: absolute;
  left: 10px;
  width: 16px;
  height: 16px;
  stroke: var(--text-light);
  fill: none;
  stroke-width: 2;
  pointer-events: none;
  transition: var(--transition);
}

.search-box input:focus ~ svg,
.search-box:focus-within svg {
  stroke: var(--primary);
}

.theme-toggle,
.menu-toggle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}

.theme-toggle:hover,
.menu-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px) rotate(8deg);
  box-shadow: 0 6px 16px rgba(255, 107, 157, 0.2);
}

.theme-toggle svg,
.menu-toggle svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

.menu-toggle {
  display: none;
}

/* ===== 移动端菜单 ===== */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-glass-strong);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  z-index: 999;
  padding: 24px;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.mobile-nav.open {
  transform: translateX(0);
}

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

.mobile-nav li {
  margin-bottom: 10px;
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.mobile-nav.open li {
  opacity: 1;
  transform: translateX(0);
}

.mobile-nav.open li:nth-child(1) { transition-delay: 0.05s; }
.mobile-nav.open li:nth-child(2) { transition-delay: 0.1s; }
.mobile-nav.open li:nth-child(3) { transition-delay: 0.15s; }
.mobile-nav.open li:nth-child(4) { transition-delay: 0.2s; }
.mobile-nav.open li:nth-child(5) { transition-delay: 0.25s; }
.mobile-nav.open li:nth-child(6) { transition-delay: 0.3s; }
.mobile-nav.open li:nth-child(7) { transition-delay: 0.35s; }

.mobile-nav a {
  display: block;
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.mobile-nav a:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateX(6px);
  box-shadow: var(--shadow);
}

/* ===== 主容器 ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-light);
  margin: 20px 0 0;
  flex-wrap: wrap;
}

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

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

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

/* ===== 锚点导航 ===== */
.anchor-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 24px 0 0;
}

.anchor-nav a {
  padding: 6px 16px;
  border-radius: 20px;
  background: var(--bg-glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-light);
  transition: var(--transition);
}

.anchor-nav a:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(255, 107, 157, 0.16);
}

[data-theme="dark"] .anchor-nav a:hover {
  background: rgba(255, 143, 179, 0.12);
}

/* ===== 轮播 Banner ===== */
.hero-banner {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 28px 0 40px;
  box-shadow: var(--shadow-lg);
  background: var(--gradient-main);
  min-height: 340px;
  isolation: isolate;
}

.hero-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.18) 0%, transparent 45%),
    radial-gradient(circle at 15% 85%, rgba(255, 255, 255, 0.12) 0%, transparent 40%);
  z-index: 1;
  pointer-events: none;
}

.banner-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease, transform 0.8s ease;
  transform: scale(1.03);
  display: flex;
  align-items: center;
  padding: 48px 56px;
  color: #fff;
}

.banner-slide.active {
  opacity: 1;
  position: relative;
  transform: scale(1);
}

.banner-slide:nth-child(1) {
  background: linear-gradient(120deg, #ff6b9d 0%, #6c5ce7 100%);
}

.banner-slide:nth-child(2) {
  background: linear-gradient(120deg, #6c5ce7 0%, #00b894 100%);
}

.banner-slide:nth-child(3) {
  background: linear-gradient(120deg, #fd79a8 0%, #fdcb6e 100%);
}

.banner-content {
  max-width: 640px;
  position: relative;
  z-index: 2;
}

.banner-content h1 {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
  letter-spacing: -0.01em;
}

.banner-content p {
  font-size: 1.05rem;
  opacity: 0.95;
  margin-bottom: 22px;
  line-height: 1.8;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.1);
}

.banner-content .btn {
  display: inline-block;
  padding: 12px 32px;
  background: rgba(255, 255, 255, 0.95);
  color: #e0558a;
  border-radius: 30px;
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.banner-content .btn:hover::after {
  left: 100%;
}

.banner-content .btn:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.22);
  color: #e0558a;
}

.banner-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 5;
}

.banner-dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.7);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: var(--transition);
}

.banner-dots button:hover {
  background: rgba(255, 255, 255, 0.5);
}

.banner-dots button.active {
  background: #fff;
  border-color: #fff;
  transform: scale(1.25);
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.8);
}

/* ===== 数字统计条 ===== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 40px 0;
}

.stat-item {
  background: var(--bg-glass);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-main);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.stat-item:hover::before {
  transform: scaleX(1);
}

.stat-item:hover {
  transform: translateY(-6px);
  border-color: var(--primary-light);
  box-shadow: var(--shadow-lg);
}

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

.stat-label {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-top: 6px;
}

/* ===== 区块通用 ===== */
.section {
  margin: 60px 0;
}

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

.section-header h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 10px;
  position: relative;
  display: inline-block;
  letter-spacing: -0.01em;
}

.section-header h2::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 4px;
  border-radius: 2px;
  background: var(--gradient-main);
  transition: width 0.4s ease;
}

.section-header:hover h2::after {
  width: 80px;
}

.section-header p {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-top: 18px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 品牌介绍 ===== */
.brand-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.brand-intro-text h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
  position: relative;
  padding-left: 14px;
}

.brand-intro-text h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 1.1em;
  border-radius: 2px;
  background: var(--gradient-main);
}

.brand-intro-text p {
  color: var(--text-light);
  margin-bottom: 14px;
  font-size: 0.95rem;
}

.brand-intro-text ul {
  margin-top: 16px;
  list-style: none;
  padding-left: 0;
}

.brand-intro-text li {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 10px;
  padding-left: 24px;
  position: relative;
  transition: var(--transition);
}

.brand-intro-text li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient-soft);
  transition: var(--transition);
}

.brand-intro-text li:hover {
  color: var(--text);
  transform: translateX(4px);
}

.brand-intro-text li:hover::before {
  transform: scale(1.4);
  box-shadow: 0 0 10px rgba(255, 107, 157, 0.5);
}

.brand-intro-text strong {
  color: var(--primary);
}

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

.brand-intro-visual svg {
  width: 100%;
  max-width: 420px;
  filter: drop-shadow(0 12px 28px rgba(255, 107, 157, 0.18));
  animation: floatVisual 6s ease-in-out infinite;
}

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

/* ===== 产品卡片网格 ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--bg-glass);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-main);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

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

.product-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-light);
  box-shadow: var(--shadow-lg);
  background: var(--bg-card);
}

.product-card .icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  background: linear-gradient(135deg, var(--primary-light), rgba(108, 92, 231, 0.15));
  transition: var(--transition);
}

.product-card:hover .icon-wrap {
  transform: scale(1.1) rotate(-6deg);
  box-shadow: 0 8px 20px rgba(255, 107, 157, 0.25);
}

[data-theme="dark"] .product-card .icon-wrap {
  background: linear-gradient(135deg, rgba(255, 143, 179, 0.2), rgba(162, 155, 254, 0.15));
}

.product-card .icon-wrap svg {
  width: 26px;
  height: 26px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 2;
}

.product-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.product-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
}

.product-card ul {
  list-style: none;
  padding-left: 0;
  margin-top: 6px;
}

.product-card ul li {
  margin-bottom: 8px;
  padding-left: 18px;
  position: relative;
  font-size: 0.9rem;
}

.product-card ul li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
  transition: var(--transition);
}

.product-card ul li:hover::before {
  transform: translateX(3px);
}

.product-card ul li a {
  color: var(--text-light);
  font-size: 0.9rem;
}

.product-card ul li a:hover {
  color: var(--primary);
}

/* ===== 解决方案 ===== */
.solution-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.solution-item {
  background: var(--bg-glass);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-left: 4px solid var(--primary);
  position: relative;
  overflow: hidden;
}

.solution-item::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(255, 107, 157, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  transform: translate(40%, -40%);
  transition: var(--transition);
}

.solution-item:hover::after {
  transform: translate(30%, -30%) scale(1.3);
}

.solution-item:hover {
  border-left-color: var(--secondary);
  transform: translateX(6px);
  box-shadow: var(--shadow-lg);
}

.solution-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
  position: relative;
  z-index: 1;
}

.solution-item p {
  font-size: 0.9rem;
  color: var(--text-light);
  position: relative;
  z-index: 1;
}

/* ===== 文章列表 ===== */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.article-card {
  background: var(--bg-glass);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.article-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-main);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

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

.article-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-light);
  box-shadow: var(--shadow-lg);
  background: var(--bg-card);
}

.article-card .meta {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 10px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.article-card .meta time {
  position: relative;
  padding-left: 16px;
}

.article-card .meta time::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.6;
}

.article-card .meta span {
  padding: 2px 10px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.75rem;
}

[data-theme="dark"] .article-card .meta span {
  background: rgba(255, 143, 179, 0.14);
}

.article-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
  line-height: 1.5;
  transition: var(--transition);
}

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

.article-card p {
  font-size: 0.88rem;
  color: var(--text-light);
  flex: 1;
  margin-bottom: 16px;
}

.article-card .read-more {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.article-card .read-more:hover {
  gap: 10px;
  color: var(--primary-dark);
}

/* ===== 客户评价 ===== */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.testimonial-card {
  background: var(--bg-glass);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
  position: relative;
  transition: var(--transition);
}

.testimonial-card::before {
  content: "\201C";
  position: absolute;
  top: 10px;
  left: 18px;
  font-size: 3.5rem;
  color: var(--primary-light);
  line-height: 1;
  font-family: Georgia, serif;
  transition: var(--transition);
}

.testimonial-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-light);
  box-shadow: var(--shadow-lg);
}

.testimonial-card:hover::before {
  color: var(--primary);
  transform: scale(1.1);
}

.testimonial-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 16px;
  padding-left: 8px;
  position: relative;
  z-index: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: var(--transition);
}

.testimonial-card:hover .testimonial-avatar {
  transform: scale(1.1) rotate(-6deg);
}

.testimonial-author strong {
  display: block;
  font-size: 0.9rem;
  color: var(--text);
}

.testimonial-author span {
  font-size: 0.78rem;
  color: var(--text-light);
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-glass);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}

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

.faq-item.open {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  background: var(--bg-card);
}

.faq-question {
  width: 100%;
  padding: 18px 22px;
  background: none;
  border: none;
  text-align: left;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: inherit;
  transition: var(--transition);
}

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

.faq-question .arrow {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  stroke: var(--text-light);
  fill: none;
  stroke-width: 2;
}

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

.faq-item.open .faq-question {
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94), padding 0.35s ease;
  padding: 0 22px;
}

.faq-item.open .faq-answer {
  max-height: 600px;
  padding: 0 22px 20px;
}

.faq-answer p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.8;
  border-top: 1px dashed var(--border);
  padding-top: 14px;
}

/* ===== HowTo ===== */
.howto-steps {
  counter-reset: step;
  max-width: 800px;
  margin: 0 auto;
}

.howto-step {
  display: flex;
  gap: 20px;
  margin-bottom: 24px;
  align-items: flex-start;
  padding: 20px;
  border-radius: var(--radius);
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.howto-step:hover {
  transform: translateX(6px);
  border-color: var(--primary-light);
  box-shadow: var(--shadow);
}

.howto-step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-main);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(255, 107, 157, 0.3);
  transition: var(--transition);
}

.howto-step:hover .howto-step-num {
  transform: scale(1.12) rotate(-8deg);
  box-shadow: 0 8px 22px rgba(255, 107, 157, 0.45);
}

.howto-step-content h3 {
  font-size: 1.02rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
}

.howto-step-content p {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* ===== 联系区块 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

.contact-card {
  background: var(--bg-glass);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-main);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

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

.contact-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-light);
  box-shadow: var(--shadow-lg);
  background: var(--bg-card);
}

.contact-card svg {
  width: 32px;
  height: 32px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 2;
  margin: 0 auto 14px;
  transition: var(--transition);
}

.contact-card:hover svg {
  transform: scale(1.15) rotate(-8deg);
  stroke: var(--secondary);
}

.contact-card h3 {
  font-size: 0.98rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.contact-card p {
  font-size: 0.88rem;
  color: var(--text-light);
  word-break: break-all;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 48px 0 28px;
  margin-top: 60px;
  position: relative;
  z-index: 1;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-main);
  opacity: 0.6;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 36px;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  border-radius: 2px;
  background: var(--gradient-main);
}

.footer-col p {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 8px;
}

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

.footer-col li {
  margin-bottom: 8px;
}

.footer-col a {
  font-size: 0.85rem;
  color: var(--text-light);
  transition: var(--transition);
  display: inline-block;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-light);
}

.footer-bottom a {
  color: var(--text-light);
}

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

/* ===== 返回顶部 ===== */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-main);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(255, 107, 157, 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px) scale(0.9);
  transition: 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 30px rgba(255, 107, 157, 0.5);
}

.back-to-top:active {
  transform: translateY(-2px) scale(0.98);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  stroke: #fff;
  fill: none;
  stroke-width: 2.5;
}

/* ===== 滚动动画 ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s 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 {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .brand-intro-visual svg {
    max-width: 360px;
  }

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

@media (max-width: 860px) {
  .nav-menu {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .mobile-nav {
    display: block;
  }

  .search-box input {
    width: 120px;
  }

  .search-box input:focus {
    width: 150px;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .banner-slide {
    padding: 36px 28px;
  }

  .banner-content h1 {
    font-size: 1.6rem;
  }

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

  .hero-banner {
    min-height: 300px;
  }

  .section {
    margin: 48px 0;
  }
}

@media (max-width: 560px) {
  .container {
    padding: 0 16px;
  }

  .header-inner {
    padding: 0 16px;
  }

  .search-box {
    display: none;
  }

  .logo {
    font-size: 1.1rem;
  }

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

  .banner-slide {
    padding: 28px 20px;
  }

  .banner-content h1 {
    font-size: 1.35rem;
  }

  .banner-content p {
    font-size: 0.9rem;
    margin-bottom: 16px;
  }

  .banner-content .btn {
    padding: 10px 24px;
    font-size: 0.88rem;
  }

  .hero-banner {
    min-height: 280px;
    border-radius: var(--radius);
  }

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

  .section-header p {
    font-size: 0.88rem;
  }

  .stats-bar {
    gap: 12px;
    margin: 28px 0;
  }

  .stat-item {
    padding: 20px 14px;
  }

  .stat-number {
    font-size: 1.7rem;
  }

  .stat-label {
    font-size: 0.8rem;
  }

  .product-grid,
  .solution-list,
  .article-grid,
  .testimonial-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .howto-step {
    gap: 14px;
    padding: 16px;
  }

  .howto-step-num {
    width: 36px;
    height: 36px;
    font-size: 0.95rem;
  }

  .faq-question {
    padding: 16px 18px;
    font-size: 0.92rem;
  }

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

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

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

  .anchor-nav a {
    padding: 5px 12px;
    font-size: 0.78rem;
  }
}

@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-nav,
  .back-to-top,
  .hero-banner,
  .banner-dots {
    display: none !important;
  }

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

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