/* mirror_flow:p6_ai_generated */
/* ===== CSS Variables & Design Tokens ===== */
:root {
  --primary: #1A6BFF;
  --primary-dark: #1251CC;
  --primary-light: #E8F1FF;
  --accent: #FF6B35;
  --accent-light: #FFF0EA;
  --text-primary: #1A1A2E;
  --text-secondary: #5A5A7A;
  --text-muted: #8E8EA0;
  --bg-white: #FFFFFF;
  --bg-light: #F7F8FC;
  --bg-lighter: #F0F2F8;
  --border: #E2E4ED;
  --border-light: #EEF0F5;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, -apple-system, sans-serif;
  --max-width: 1200px;
  --header-height: 68px;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-white);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
  list-style: none;
}

input, button, textarea, select {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section--light {
  background-color: var(--bg-light);
}

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

.section__title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.section__subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 48px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  height: var(--header-height);
  transition: box-shadow var(--transition);
}

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

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  flex-shrink: 0;
}

.header__logo img {
  height: 38px;
  width: auto;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header__nav a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
  transition: color var(--transition);
}

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

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

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

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

.header__btn {
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition);
}

.header__btn--outline {
  border: 1.5px solid var(--primary);
  color: var(--primary);
  background: transparent;
}

.header__btn--outline:hover {
  background: var(--primary-light);
}

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

.header__btn--primary:hover {
  background: var(--primary-dark);
}

/* Mobile Menu */
.header__menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.header__menu-toggle span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ===== Hero / Banner ===== */
.hero {
  position: relative;
  padding: 100px 0 90px;
  background: linear-gradient(160deg, #F0F5FF 0%, #E8F1FF 30%, #FFFFFF 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -180px;
  right: -120px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(26,107,255,0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -80px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(255,107,53,0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero__inner {
  display: flex;
  align-items: center;
  gap: 60px;
  position: relative;
  z-index: 1;
}

.hero__content {
  flex: 1;
  max-width: 580px;
}

.hero__badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
  letter-spacing: 0.03em;
}

.hero__title {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 18px;
  letter-spacing: 0.01em;
}

.hero__title span {
  color: var(--primary);
}

.hero__desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 500px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__image {
  flex: 0 0 420px;
  display: flex;
  justify-content: center;
  align-items: center;
}

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

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.btn--primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(26,107,255,0.3);
}

.btn--primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 6px 20px rgba(26,107,255,0.4);
  color: #fff;
  transform: translateY(-1px);
}

.btn--outline {
  border: 1.5px solid var(--border);
  color: var(--text-primary);
  background: var(--bg-white);
}

.btn--outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background