:root {
  --blue: #2c7af2;
  --blue-deep: #1e65d8;
  --blue-dark: #1547a0;
  --blue-soft: #eaf2fe;
  --blue-mid: #d4e6fd;
  --ink: #1e293b;
  --ink-soft: #475569;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-soft: #f5f8fc;
  --bg-deep: #0f172a;
  --success: #0d9488;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 8px 28px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 18px 48px rgba(15, 23, 42, 0.12);
  --nav-h: 72px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --max: 1200px;
  --section-y: 4.5rem;
  --fs-body: 0.92rem;
  --lh-body: 1.65;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 12px);
}

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.page-main {
  padding-top: var(--nav-h);
  padding-bottom: 5.5rem;
}

body.is-locked {
  overflow: hidden;
  padding-right: var(--sbw, 0px);
}

body.is-locked .site-header {
  padding-right: var(--sbw, 0px);
}

body.is-locked .float-dock {
  right: calc(1rem + var(--sbw, 0px));
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

ul {
  list-style: none;
}

.container {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

.section {
  padding: var(--section-y) 0;
}

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

.section--deep {
  background: linear-gradient(165deg, #0f172a 0%, #1547a0 50%, #2c7af2 100%);
  color: #fff;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--blue);
  margin-bottom: 0.85rem;
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 3px;
  border-radius: 2px;
  background: var(--blue);
}

.section-title {
  font-size: clamp(1.65rem, 3.2vw, 2.25rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.section-lead {
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  font-weight: 400;
  font-family: var(--font);
  color: var(--ink-soft);
  max-width: 40rem;
}

.section-head {
  text-align: center;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section-head .section-lead {
  margin-inline: auto;
}

.page-hero p,
.page-cta p,
.xsy-cta p,
.cta-band > div > p,
.hero__sub,
.crm-hero__lead,
.product-head > p:not(.meta-line),
.footer__about p,
.footer__addrs li,
.footer__col a,
.footer__col > span,
.footer__bottom,
.footer__phone {
  font-family: var(--font);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  font-weight: 400;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 44px;
  padding: 0.65rem 1.4rem;
  border-radius: 10px;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  border: 1.5px solid transparent;
  transition: transform 0.25s var(--ease), background 0.25s, color 0.25s, box-shadow 0.25s, border-color 0.25s;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 8px 20px rgba(44, 122, 242, 0.32);
}

.btn-primary:hover {
  background: var(--blue-deep);
  box-shadow: 0 10px 24px rgba(30, 101, 216, 0.36);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.btn-ghost:hover {
  background: #fff;
  color: var(--blue);
  border-color: #fff;
}

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

.btn-outline:hover {
  background: var(--blue-soft);
}

.btn-light {
  background: #fff;
  color: var(--blue);
  box-shadow: 0 6px 16px rgba(44, 122, 242, 0.12);
}

.btn-light:hover {
  color: var(--blue-deep);
}

/* 入场：默认可见；仅 JS 给屏外元素加上 is-wait 后才隐藏 */
.reveal {
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

html.js .reveal.is-wait:not(.is-in) {
  opacity: 0;
  transform: translate3d(0, 28px, 0);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

.reveal-delay-1 {
  transition-delay: 0.08s;
}
.reveal-delay-2 {
  transition-delay: 0.16s;
}
.reveal-delay-3 {
  transition-delay: 0.24s;
}
.reveal-delay-4 {
  transition-delay: 0.32s;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  html.js .reveal.is-wait:not(.is-in),
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .btn:hover {
    transform: none;
  }
}

[data-bg] {
  background-color: #eef2f7;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}