/* WPS Template Suite 17 — 极简无边界风 */
/* 全白背景 + 大字排版 + 黑白极简 + 无边框设计 */

:root {
  --black: #0A0A0A;
  --gray-900: #1A1A1A;
  --gray-700: #3A3A3A;
  --gray-500: #6A6A6A;
  --gray-300: #AAAAAA;
  --gray-100: #F0F0F0;
  --gray-50: #F8F8F8;
  --white: #FFFFFF;
  --accent: #0A0A0A;
  --border: #E8E8E8;
  --sans: 'Inter', 'Noto Sans SC', sans-serif;
  --transition: all 0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--white);
  color: var(--black);
  line-height: 1.6;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 40px; }

/* 导航 */
.navbar {
  position: sticky; top: 0; z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1080px; margin: 0 auto; padding: 0 40px;
  height: 60px; display: flex; align-items: center; gap: 40px;
}
.logo {
  font-size: 1.2rem; font-weight: 800; color: var(--black);
  letter-spacing: -0.5px;
}
.nav-links { display: flex; align-items: center; gap: 0; flex: 1; }
.nav-link {
  padding: 6px 16px;
  font-size: 0.85rem; font-weight: 400;
  color: var(--gray-500);
  transition: var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--black); }
.btn-minimal {
  padding: 8px 20px;
  background: var(--black);
  border-radius: 6px;
  font-size: 0.85rem; font-weight: 600; color: var(--white);
  transition: var(--transition);
}
.btn-minimal:hover { background: var(--gray-700); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 20px; height: 1px; background: var(--black); }

/* 分割线 */
.divider-full { height: 1px; background: var(--border); }

/* Hero */
.hero {
  min-height: calc(100vh - 60px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 40px;
  gap: 60px;
}
.hero-eyebrow {
  font-size: 0.78rem; font-weight: 500;
  color: var(--gray-400, #999);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-h1 {
  font-size: clamp(3.5rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -3px;
  margin-bottom: 28px;
}
.h1-thin { font-weight: 200; color: var(--gray-300); }
.h1-bold { font-weight: 900; color: var(--black); }
.hero-sub {
  font-size: 1rem; font-weight: 300;
  color: var(--gray-500);
  line-height: 1.8;
  margin-bottom: 36px;
}
.hero-cta { display: flex; flex-direction: column; gap: 12px; }
.btn-hero {
  display: inline-flex; align-items: center;
  padding: 14px 28px;
  background: var(--black);
  border-radius: 6px;
  font-size: 0.95rem; font-weight: 700; color: var(--white);
  transition: var(--transition);
  width: fit-content;
}
.btn-hero:hover { background: var(--gray-700); }
.hero-cta-note { font-size: 0.75rem; color: var(--gray-300); }
.hero-visual { display: flex; align-items: center; justify-content: center; }
.hero-number-block { text-align: center; }
.big-num {
  font-size: clamp(5rem, 12vw, 9rem);
  font-weight: 900;
  color: var(--black);
  letter-spacing: -6px;
  line-height: 1;
}
.big-unit { font-size: 0.4em; letter-spacing: -2px; }
.big-label { font-size: 0.9rem; color: var(--gray-400, #999); margin-top: 8px; font-weight: 300; }

/* 价值观区域 */
.values-section { padding: 80px 0; }
.value-row {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  gap: 40px;
  align-items: center;
  padding: 40px 0;
}
.value-num {
  font-size: 0.72rem; font-weight: 700;
  color: var(--gray-300);
  letter-spacing: 2px;
}
.value-h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 8px;
}
.value-desc { font-size: 0.9rem; color: var(--gray-500); line-height: 1.7; max-width: 560px; }
.value-tag {
  font-size: 0.65rem; font-weight: 700;
  color: var(--gray-300);
  letter-spacing: 3px;
  writing-mode: vertical-rl;
  text-orientation: mixed;
}
.value-divider { height: 1px; background: var(--border); }

/* 产品列表 */
.products-section { padding: 80px 0; }
.products-header { margin-bottom: 48px; }
.products-h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1.1;
}
.products-list { display: flex; flex-direction: column; }
.product-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.product-item:hover { padding-left: 8px; }
.pi-left { display: flex; align-items: center; gap: 20px; }
.pi-icon {
  width: 44px; height: 44px;
  background: var(--black);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-weight: 800; color: var(--white);
}
.pi-name { font-size: 1rem; font-weight: 700; margin-bottom: 2px; }
.pi-desc { font-size: 0.8rem; color: var(--gray-500); }
.pi-link { font-size: 0.85rem; font-weight: 600; color: var(--gray-500); transition: var(--transition); }
.pi-link:hover { color: var(--black); }

/* 数据区 */
.stats-section { padding: 80px 0; background: var(--black); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.stat-block {
  padding: 40px 32px;
  border-right: 1px solid rgba(255,255,255,0.08);
}
.stat-block:last-child { border-right: none; }
.stat-big {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800; color: var(--white);
  letter-spacing: -2px;
  margin-bottom: 6px;
}
.stat-small { font-size: 0.8rem; color: rgba(255,255,255,0.4); }

/* 定价 */
.pricing-section { padding: 80px 0; }
.pricing-h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800; letter-spacing: -1.5px;
  margin-bottom: 48px;
}
.pricing-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.pricing-item { padding: 36px 28px; border-right: 1px solid var(--border); position: relative; }
.pricing-item:last-child { border-right: none; }
.pricing-featured { background: var(--black); }
.pricing-badge {
  position: absolute; top: 16px; right: 16px;
  padding: 3px 10px;
  background: var(--white);
  border-radius: 100px;
  font-size: 0.65rem; font-weight: 700; color: var(--black);
  letter-spacing: 1px;
}
.pricing-tier { font-size: 0.72rem; font-weight: 700; color: var(--gray-300); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 16px; }
.pricing-featured .pricing-tier { color: rgba(255,255,255,0.4); }
.pricing-price { font-size: 2rem; font-weight: 800; letter-spacing: -1px; margin-bottom: 4px; }
.pricing-featured .pricing-price { color: var(--white); }
.pricing-period { font-size: 0.82rem; font-weight: 400; color: var(--gray-400, #999); }
.pricing-features { font-size: 0.82rem; color: var(--gray-500); line-height: 1.7; margin: 16px 0 24px; }
.pricing-featured .pricing-features { color: rgba(255,255,255,0.5); }
.btn-pricing-dark {
  display: block; width: 100%; padding: 12px;
  background: var(--white);
  border-radius: 6px;
  text-align: center; font-weight: 700; font-size: 0.88rem; color: var(--black);
  transition: var(--transition);
}
.btn-pricing-dark:hover { background: var(--gray-100); }
.btn-pricing-outline {
  display: block; width: 100%; padding: 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  text-align: center; font-weight: 600; font-size: 0.88rem; color: var(--gray-500);
  transition: var(--transition);
}
.btn-pricing-outline:hover { border-color: var(--black); color: var(--black); }

/* 引用 */
.quotes-section { padding: 80px 0; }
.quotes-h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800; letter-spacing: -1px;
  margin-bottom: 48px;
}
.quotes-list { display: flex; flex-direction: column; gap: 0; }
.quote-item { padding: 36px 0; border-bottom: 1px solid var(--border); }
.quote-text {
  font-size: clamp(1rem, 2vw, 1.3rem);
  font-weight: 300; color: var(--black);
  line-height: 1.7; margin-bottom: 12px;
  font-style: normal;
}
.quote-cite { font-size: 0.8rem; color: var(--gray-400, #999); font-style: normal; }

/* CTA */
.cta-section { padding: 120px 0; }
.cta-inner { text-align: center; }
.cta-h2 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900; letter-spacing: -3px;
  margin-bottom: 16px;
}
.cta-sub { font-size: 1rem; color: var(--gray-500); margin-bottom: 36px; }
.btn-cta-dark {
  display: inline-flex; align-items: center;
  padding: 16px 36px;
  background: var(--black);
  border-radius: 8px;
  font-size: 1rem; font-weight: 700; color: var(--white);
  transition: var(--transition);
}
.btn-cta-dark:hover { background: var(--gray-700); }

/* 页脚 */
.footer { border-top: 1px solid var(--border); padding: 48px 0; }
.footer-inner { display: grid; grid-template-columns: 1fr 2fr; gap: 60px; align-items: start; }
.footer-logo { font-size: 1.1rem; font-weight: 800; color: var(--black); margin-bottom: 8px; }
.footer-copy { font-size: 0.75rem; color: var(--gray-300); }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-col-title { font-size: 0.72rem; font-weight: 700; color: var(--black); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 12px; }
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col a { font-size: 0.82rem; color: var(--gray-400, #999); transition: var(--transition); }
.footer-col a:hover { color: var(--black); }

@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding: 80px 40px; }
  .hero-visual { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-list { grid-template-columns: 1fr; }
  .pricing-item { border-right: none; border-bottom: 1px solid var(--border); }
  .footer-inner { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .container { padding: 0 24px; }
  .nav-inner { padding: 0 24px; }
  .nav-links { display: none; position: fixed; top: 60px; left: 0; right: 0; background: var(--white); border-bottom: 1px solid var(--border); padding: 16px; flex-direction: column; }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .value-row { grid-template-columns: 40px 1fr; }
  .value-tag { display: none; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
  .hero { padding: 60px 24px; }
}