/* mirror_flow:p6_ai_generated */
:root {
  --color-primary: #1a3c6e;
  --color-primary-light: #2a5298;
  --color-primary-dark: #0f2447;
  --color-accent: #e8a817;
  --color-accent-hover: #c98f14;
  --color-white: #ffffff;
  --color-off-white: #f8f9fa;
  --color-light-gray: #e9ecef;
  --color-mid-gray: #adb5bd;
  --color-dark-gray: #495057;
  --color-text: #212529;
  --color-text-light: #6c757d;
  --color-black: #000000;
  --color-success: #28a745;
  --color-border: #dee2e6;
  --font-primary: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  --font-size-hero: 3rem;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-section: 5rem;
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-round: 50%;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.16);
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --max-width: 1200px;
  --header-height: 72px;
  --header-height-mobile: 60px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-white);
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-hero); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-md); }

p {
  margin-bottom: var(--spacing-md);
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-xl);
  padding-right: var(--spacing-xl);
}

.section {
  padding-top: var(--spacing-section);
  padding-bottom: var(--spacing-section);
}

.section--gray {
  background-color: var(--color-off-white);
}

.section--dark {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.section--dark h2,
.section--dark h3,
.section--dark h4,
.section--dark p {
  color: var(--color-white);
}

.section__title {
  text-align: center;
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-3xl);
  color: var(--color-primary-dark);
}

.section__subtitle {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  color: var(--color-text-light);
  font-size: var(--font-size-md);
}

.section--dark .section__title {
  color: var(--color-white);
}

.section--dark .section__subtitle {
  color: rgba(255, 255, 255, 0.8);
}

/* ========== HEADER ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  height: var(--header-height);
  transition: box-shadow var(--transition-base), background-color var(--transition-base);
}

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

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

.header__logo img {
  height: 44px;
  width: auto;
}

.header__logo-text {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}

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

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.header__nav a {
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: var(--spacing-xs) 0;
  position: relative;
  white-space: nowrap;
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

.header__nav a:hover,
.header__nav a.active {
  color: var(--color-primary);
}

.header__nav a:hover::after,
.header__nav a.active::after {
  width: 100%;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.header__search-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--color-text);
  padding: var(--spacing-xs);
  transition: color var(--transition-fast);
}

.header__search-btn:hover {
  color: var(--color-primary);
}

.header__lang-switch {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-light);
  cursor: pointer;
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background: transparent;
  transition: all var(--transition-fast);
}

.header__lang-switch:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.header__menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px 4px;
  z-index: 1001;
}

.header__menu-toggle span {
  display: block;
  width: 26px;
  height: 2.5px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.header__menu-toggle.active span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.header__menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.header__menu-toggle.active span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ========== HERO / BANNER ========== */
.hero {
  margin-top: var(--header-height);
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
  color: var(--color-white);
  padding: var(--spacing-3xl) 0;
  position: relative;
  overflow: hidden;
  min-height: 480px;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(ellipse at center, rgba(255,255,255,0.06) 0%, transparent 70%);
  transform: rotate(-15deg);
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
  position: relative;
  z-index: 1;
}

.hero__content h1 {
  color: var(--color-white);
  font-size: var(--font-size-hero);
  margin-bottom: var(--spacing-lg);
  line-height: 1.2;
}

.hero__content h1 span {
  color: var(--color-accent);
}

.hero__content p {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-xl);
  line-height: 1.8;
}

.hero__buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

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

.hero__image img {
  max-width: 100%;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px 28px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  font-family: var(--font-primary);
  border-radius: var(--border-radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.5px;
  line-height: 1.4;
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn--outline:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

.btn--dark-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--dark-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn--white {
  background-color: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}

.btn--white:hover {
  background-color: var(--color-off-white);
  border-color: var(--color-off-white);
  box-shadow: var(--shadow-md);
}

.btn--sm {
  padding: 8px 18px;
  font-size: var(--font-size-xs);
}

.btn--lg {
  padding: 16px 36px;
  font-size: var(--font-size-md);
}

/* ========== CARDS ========== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
}

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

.card__image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}

.card__body {
  padding: var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card__body h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

.card__body p {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-lg);
  flex: 1;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  transition: gap var(--transition-fast);
}

.card__link:hover {
  gap: 8px;
}

.card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--border-radius-md);
  background-color: rgba(232, 168, 23, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  font-size: 1.6rem;
  flex-shrink: 0;
}

/* ========== STATS / COUNTER ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
  text-align: center;
}

.stat-item {
  padding: var(--spacing-lg);
}

.stat-item__number {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--spacing-xs);
  line-height: 1;
}

.stat-item__label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.8);
}

/* ========== ABOUT / FEATURES ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.feature-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.feature-item__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius-md);
  background-color: rgba(26, 60, 110, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.3rem;
  color: var(--color-primary);
}

.feature-item__text h4 {
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-xs);
}

.feature-item__text p {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* ========== PRODUCTS ========== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.product-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-border);
  text-align: center;
  padding: var(--spacing-lg);
  transition: all var(--transition-base