/* ===== 设计变量 ===== */
:root {
  --ink: #171A2B;
  --ink-2: #3D4356;
  --muted: #6B7280;
  --line: #ECEEF5;
  --line-2: #D9DCE8;
  --bg: #FFFFFF;
  --bg-soft: #F6F7FB;
  --bg-warm: #FFFBF7;
  --brand: #5B4DE8;
  --brand-2: #7C69EF;
  --brand-soft: #EEECFF;
  --accent: #FF5A3C;
  --accent-2: #FF7A45;
  --gold: #FFB020;
  --green: #12B76A;
  --green-soft: #E7F8EF;
  --navy: #0E1330;
  --white: #FFFFFF;
  --shadow-sm: 0 4px 16px rgba(23,26,43,.06);
  --shadow-md: 0 12px 32px -8px rgba(23,26,43,.12);
  --shadow-lg: 0 28px 60px -16px rgba(23,26,43,.22);
  --shadow-brand: 0 10px 26px rgba(91,77,232,.32);
  --shadow-accent: 0 10px 26px rgba(255,90,60,.28);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --radius-xs: 8px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Source Han Sans SC', 'Noto Sans CJK SC', 'WenQuanYi Micro Hei', sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { border: none; cursor: pointer; font-family: inherit; background: none; }
ul { list-style: none; }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; position: relative; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn-primary {
  background: linear-gradient(135deg, var(--brand-2), var(--brand));
  color: var(--white);
  padding: 15px 30px;
  font-size: 16px;
  box-shadow: var(--shadow-brand);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(91,77,232,.42); }
.btn-accent {
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  color: var(--white);
  padding: 15px 30px;
  font-size: 16px;
  box-shadow: var(--shadow-accent);
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(255,90,60,.38); }
.btn-secondary {
  background: var(--bg);
  color: var(--ink);
  padding: 14px 26px;
  font-size: 16px;
  border: 1.5px solid var(--line-2);
}
.btn-secondary:hover { border-color: var(--brand); color: var(--brand); }
.btn-ghost-dark {
  background: transparent;
  color: var(--white);
  padding: 14px 26px;
  font-size: 16px;
  border: 1.5px solid rgba(255,255,255,.35);
}
.btn-ghost-dark:hover { border-color: var(--white); }
.btn-outline {
  background: var(--white);
  color: var(--brand);
  padding: 14px 0;
  font-size: 16px;
  width: 100%;
  border: 1.5px solid var(--brand);
}
.btn-outline:hover { background: var(--brand-soft); }
.btn-full { width: 100%; }
.btn-agent {
  background: var(--white);
  color: var(--brand);
  padding: 12px 22px;
  font-size: 15px;
  border: 1.5px solid var(--brand);
}
.btn-agent:hover { background: var(--brand-soft); transform: translateY(-1px); }
.nav-agent-link { display: none; }

/* ===== 图标 ===== */
.icon { width: 16px; height: 16px; flex-shrink: 0; }
.icon-sm { width: 14px; height: 14px; }
.icon-md { width: 18px; height: 18px; }
.icon-lg { width: 22px; height: 22px; }

/* ===== 头部 ===== */
.header {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  z-index: 100;
  border-bottom: 1px solid rgba(236,238,245,.7);
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark { width: 32px; height: 32px; }
.logo-text { font-size: 20px; font-weight: 800; color: var(--ink); letter-spacing: -0.02em; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  transition: color .15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.header-actions { display: flex; align-items: center; gap: 16px; }
.mobile-menu-btn { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; }

/* ===== Hero ===== */
.hero { position: relative; padding: 56px 0 92px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero-bg::before, .hero-bg::after { content: ''; position: absolute; border-radius: 50%; }
.hero-bg::before { width: 540px; height: 540px; top: -160px; right: -120px; background: radial-gradient(circle, rgba(123,105,239,.18) 0%, rgba(123,105,239,0) 70%); }
.hero-bg::after { width: 460px; height: 460px; bottom: -120px; left: -140px; background: radial-gradient(circle, rgba(255,122,69,.14) 0%, rgba(255,122,69,0) 70%); }
.hero-inner { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 48px; }
.hero-copy { flex: 1 1 auto; min-width: 0; max-width: 560px; display: flex; flex-direction: column; gap: 20px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: var(--brand-soft); border-radius: 999px; padding: 8px 16px; align-self: flex-start; }
.hero-badge-text { font-size: 13px; font-weight: 600; color: var(--brand); }
.hero-headline { font-size: 52px; font-weight: 800; line-height: 1.15; color: var(--ink); letter-spacing: -0.02em; }
.hero-headline .accent {
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subheadline { font-size: 17px; line-height: 1.7; color: var(--muted); max-width: 480px; }
.hero-ctas { display: flex; align-items: center; gap: 14px; }
.hero-trust { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.stars { display: flex; gap: 2px; color: var(--gold); }
.trust-text { font-size: 14px; font-weight: 500; color: var(--muted); }
.earnings-chip { display: inline-flex; align-items: center; gap: 6px; background: var(--green-soft); border-radius: 999px; padding: 7px 12px; }
.earnings-chip-text { font-size: 13px; font-weight: 700; color: var(--green); }

.hero-visual { flex: 0 0 340px; width: 340px; position: relative; display: flex; justify-content: center; }
.product-video { position: relative; width: 100%; max-width: 340px; aspect-ratio: 9 / 16; border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-lg); background: var(--navy); }
.product-video__el { width: 100%; height: 100%; object-fit: cover; display: block; }
.video-overlay { position: absolute; inset: 0; background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,.45) 100%); pointer-events: none; }
.play-btn { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 78px; height: 78px; border-radius: 50%; background: linear-gradient(135deg, var(--brand-2), var(--brand)); display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-brand); transition: transform .2s ease; }
.play-btn:hover { transform: translate(-50%, -50%) scale(1.05); }
.duration-badge { position: absolute; bottom: 16px; left: 16px; background: var(--navy); color: var(--white); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; font-weight: 500; padding: 7px 12px; border-radius: var(--radius-xs); }
.floating-earnings-card { position: absolute; bottom: 28px; left: -30px; width: 200px; background: var(--white); border: 1px solid var(--line); border-radius: 16px; padding: 16px; box-shadow: var(--shadow-md); display: flex; flex-direction: column; gap: 8px; }
.card-label-row { display: flex; align-items: center; gap: 8px; }
.card-label-text { font-size: 13px; font-weight: 500; color: var(--muted); }
.card-value { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 20px; font-weight: 700; color: var(--green); }

/* ===== 通用区块标题 ===== */
.section-head { display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center; margin-bottom: 44px; }
.eyebrow { font-size: 13px; font-weight: 700; color: var(--brand); letter-spacing: .08em; text-transform: uppercase; }
.section-title { font-size: 40px; font-weight: 800; color: var(--ink); letter-spacing: -0.02em; }
.section-subtitle { font-size: 17px; line-height: 1.7; color: var(--muted); max-width: 560px; }

/* ===== 收益数据 ===== */
.earnings-section { padding: 80px 0; background: var(--bg-soft); }
.stats-card { background: var(--white); border-radius: var(--radius-lg); padding: 36px 40px; box-shadow: var(--shadow-sm); display: flex; justify-content: space-between; align-items: center; margin-bottom: 56px; }
.stat { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.stat-value { font-size: 34px; font-weight: 800; color: var(--ink); letter-spacing: -0.02em; }
.stat-value.green { color: var(--green); }
.stat-label { font-size: 15px; font-weight: 500; color: var(--muted); }

.testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.testimonial-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 26px; display: flex; flex-direction: column; gap: 16px; box-shadow: var(--shadow-sm); }
.testimonial-quote { font-size: 15px; line-height: 1.75; color: var(--ink-2); }
.testimonial-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; }
.testimonial-author { display: flex; align-items: center; gap: 12px; min-width: 0; }
.testimonial-avatar { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.author-info { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.author-name { font-size: 14px; font-weight: 700; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.author-role { font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.earnings-badge { background: var(--green-soft); border-radius: 999px; padding: 8px 12px; flex-shrink: 0; white-space: nowrap; }
.earnings-badge-text { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; font-weight: 700; color: var(--green); }

.carousel-controls { display: flex; align-items: center; justify-content: center; gap: 18px; margin-top: 32px; }
.carousel-arrow { width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line); background: var(--white); color: var(--ink); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all .2s; box-shadow: var(--shadow-sm); }
.carousel-arrow:hover { background: var(--brand); border-color: var(--brand); color: var(--white); transform: scale(1.05); }
.carousel-dots { display: flex; gap: 8px; }
.carousel-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--line-2); border: none; padding: 0; cursor: pointer; transition: all .25s; }
.carousel-dot.active { background: var(--brand); width: 24px; border-radius: 6px; }

/* ===== 下载专区 ===== */
.download-section { padding: 88px 0; background: var(--bg-warm); }
.download-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.download-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 32px; display: flex; flex-direction: column; gap: 20px; box-shadow: var(--shadow-sm); transition: transform .25s ease, box-shadow .25s ease; }
.download-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.dc-header { display: flex; align-items: center; gap: 16px; }
.dc-icon { width: 56px; height: 56px; border-radius: 16px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.dc-icon svg { width: 28px; height: 28px; }
.dc-icon.purple { background: linear-gradient(135deg, var(--brand-2), var(--brand)); color: var(--white); }
.dc-icon.orange { background: linear-gradient(135deg, #FF7A45, #FF5A3C); color: var(--white); }
.dc-icon.green { background: linear-gradient(135deg, #12B76A, #0E9F5C); color: var(--white); }
.dc-title h3 { font-size: 22px; font-weight: 800; color: var(--ink); }
.dc-title .tag { display: inline-block; margin-top: 4px; font-size: 12px; font-weight: 700; color: var(--brand); background: var(--brand-soft); padding: 3px 10px; border-radius: 999px; }
.dc-desc { font-size: 15px; line-height: 1.7; color: var(--muted); }
.dc-features { display: flex; flex-wrap: wrap; gap: 8px; }
.dc-features li { font-size: 13px; color: var(--ink-2); background: var(--bg-soft); padding: 5px 12px; border-radius: 999px; border: 1px solid var(--line); }

/* ===== 价格方案 ===== */
.pricing-section { padding: 88px 0; }
.pricing-cards { display: flex; align-items: stretch; gap: 24px; }
.plan-card { flex: 1; border-radius: var(--radius-lg); padding: 34px; display: flex; flex-direction: column; gap: 18px; }
.plan-card.light { background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
.plan-card.dark { background: var(--navy); box-shadow: var(--shadow-lg); position: relative; overflow: hidden; }
.plan-card.dark::before { content: ''; position: absolute; top: -120px; right: -80px; width: 280px; height: 280px; background: radial-gradient(circle, rgba(123,105,239,.4) 0%, rgba(123,105,239,0) 70%); pointer-events: none; }
.plan-card.dark::after { content: ''; position: absolute; bottom: -100px; left: -60px; width: 220px; height: 220px; background: radial-gradient(circle, rgba(255,90,60,.18) 0%, rgba(255,90,60,0) 70%); pointer-events: none; }
.plan-card.dark > * { position: relative; z-index: 1; }
.plan-name { font-size: 22px; font-weight: 800; color: var(--ink); }
.plan-card.dark .plan-name { color: var(--white); }
.plan-tagline { font-size: 15px; color: var(--muted); }
.plan-card.dark .plan-tagline { color: rgba(255,255,255,.6); }
.price-row { display: flex; align-items: baseline; gap: 8px; }
.price { font-size: 48px; font-weight: 900; color: var(--ink); letter-spacing: -0.03em; }
.plan-card.dark .price { color: var(--white); }
.price-unit { font-size: 16px; color: var(--muted); }
.plan-card.dark .price-unit { color: rgba(255,255,255,.55); }
.divider { height: 1px; background: var(--line); }
.plan-card.dark .divider { background: rgba(255,255,255,.12); }
.features { display: flex; flex-direction: column; gap: 12px; }
.feature-row { display: flex; align-items: center; gap: 10px; }
.feature-text { font-size: 15px; color: var(--ink-2); }
.plan-card.dark .feature-text { color: rgba(255,255,255,.82); }
.popular-badge { display: inline-flex; align-items: center; gap: 6px; background: linear-gradient(135deg, var(--accent-2), var(--accent)); border-radius: 999px; padding: 7px 14px; align-self: flex-start; }
.popular-badge-text { font-size: 12px; font-weight: 800; color: var(--white); letter-spacing: .03em; }
.popular-badge-hurry { font-size: 12px; font-weight: 700; color: #FFE7E0; letter-spacing: .03em; padding-left: 6px; border-left: 1px solid rgba(255,255,255,.4); white-space: nowrap; }
.plan-note { font-size: 13px; color: var(--muted); text-align: center; }
.plan-card.dark .plan-note { color: rgba(255,255,255,.5); }

.pricing-guarantee { display: flex; align-items: center; justify-content: center; gap: 36px; margin-top: 38px; }
.guarantee-item { display: flex; align-items: center; gap: 8px; }
.guarantee-text { font-size: 14px; font-weight: 500; color: var(--muted); }

/* ===== 最终 CTA ===== */
.final-cta { background: var(--navy); padding: 96px 0; display: flex; flex-direction: column; align-items: center; gap: 22px; text-align: center; position: relative; overflow: hidden; }
.final-cta::before, .final-cta::after { content: ''; position: absolute; border-radius: 50%; pointer-events: none; }
.final-cta::before { width: 520px; height: 520px; top: -200px; left: 50%; transform: translateX(-50%); background: radial-gradient(circle, rgba(123,105,239,.35) 0%, rgba(123,105,239,0) 70%); }
.final-cta::after { width: 360px; height: 360px; bottom: -160px; right: 20%; background: radial-gradient(circle, rgba(255,90,60,.22) 0%, rgba(255,90,60,0) 70%); }
.cta-eyebrow { display: inline-flex; align-items: center; gap: 8px; position: relative; z-index: 1; }
.cta-eyebrow-text { font-size: 13px; font-weight: 700; color: var(--brand-2); letter-spacing: .05em; }
.cta-headline { font-size: 42px; font-weight: 800; line-height: 1.2; color: var(--white); letter-spacing: -0.02em; max-width: 800px; position: relative; z-index: 1; }
.cta-subtitle { font-size: 17px; line-height: 1.7; color: rgba(255,255,255,.6); max-width: 560px; position: relative; z-index: 1; }
.cta-buttons { display: flex; align-items: center; gap: 16px; position: relative; z-index: 1; }
.cta-note { font-size: 13px; color: rgba(255,255,255,.35); position: relative; z-index: 1; }

/* ===== 页脚 ===== */
.footer { background: var(--bg-soft); padding: 64px 0 40px; }
.footer-top { display: flex; justify-content: space-between; gap: 60px; margin-bottom: 40px; }
.footer-brand { width: 320px; display: flex; flex-direction: column; gap: 14px; }
.footer-tagline { font-size: 14px; line-height: 1.7; color: var(--muted); }
.footer-links-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 60px; }
.footer-links-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col-title { font-size: 12px; font-weight: 700; color: var(--ink); letter-spacing: .04em; }
.footer-link { font-size: 14px; color: var(--muted); transition: color .15s; }
.footer-link:hover { color: var(--brand); }
.footer-divider { height: 1px; background: var(--line-2); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-top: 24px; }
.footer-copyright { font-size: 13px; color: var(--muted); }
.footer-language { font-size: 13px; font-weight: 500; color: var(--muted); }

/* ===== 滚动动效 ===== */
.reveal { opacity: 0; transform: translateY(32px); transition: opacity .7s cubic-bezier(.22,1,.36,1), transform .7s cubic-bezier(.22,1,.36,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== 移动端适配 ===== */
@media (max-width: 1024px) {
  .header { height: 64px; }
  .nav-links, .header-actions { display: none; }
  .mobile-menu-btn { display: flex; }

  .hero-inner { flex-direction: column; padding-top: 24px; gap: 36px; }
  .hero-copy { width: 100%; max-width: none; align-items: center; text-align: center; }
  .hero-headline { font-size: 38px; }
  .hero-subheadline { font-size: 16px; max-width: 480px; }
  .hero-ctas { flex-direction: column; width: 100%; }
  .hero-ctas .btn { width: 100%; }
  .hero-trust { justify-content: center; }

  .hero-visual { flex: none; width: 100%; display: flex; justify-content: center; }
  .product-video { aspect-ratio: 9 / 16; max-width: 300px; }
  .floating-earnings-card { display: none; }

  .section-title { font-size: 30px; }
  .section-subtitle { font-size: 16px; }

  .stats-card { flex-wrap: wrap; gap: 20px; justify-content: center; padding: 28px; }
  .stat { width: calc(50% - 10px); }
  .stat-value { font-size: 28px; }
  .stat-label { font-size: 13px; text-align: center; }

  .testimonials { grid-template-columns: 1fr; }
  .testimonial-card { padding: 20px; }
  .testimonial-footer { flex-direction: column; align-items: flex-start; gap: 10px; }

  .download-grid { grid-template-columns: 1fr; }
  .download-card { padding: 24px; }
  .pricing-cards { flex-direction: column; }
  .plan-card { width: 100%; padding: 26px; }
  .price { font-size: 40px; }
  .pricing-guarantee { flex-direction: column; gap: 10px; }

  .cta-headline { font-size: 30px; }
  .cta-subtitle { font-size: 15px; }
  .cta-buttons { flex-direction: column; width: 100%; }
  .cta-buttons .btn { width: 100%; }

  .footer-top { flex-direction: column; gap: 32px; }
  .footer-brand { width: 100%; }
  .footer-links-grid { gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; align-items: flex-start; }
}

.nav-open .nav-links {
  display: flex;
  position: absolute;
  top: 64px;
  left: 0;
  right: 0;
  flex-direction: column;
  background: rgba(255,255,255,.98);
  padding: 20px 24px;
  gap: 14px;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 12px 24px rgba(23,26,43,.08);
  z-index: 99;
}
.nav-open .nav-agent-link {
  display: block;
  font-weight: 600;
  color: var(--brand);
  border-top: 1px solid var(--line);
  padding-top: 14px;
}