:root {
  --ink: #0a1f17;
  --ink-2: #233a30;
  --muted: #5c6f66;
  --brand: #0f7a4d;
  --brand-strong: #0a5f3b;
  --brand-soft: #e9f5ef;
  --accent: #f2a03d;
  --bg: #ffffff;
  --band: #f5f8f6;
  --line: #e2ebe6;
  --dark: #0c241b;
  --radius: 18px;
  --shadow: 0 24px 60px -28px rgba(9, 48, 33, .35);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.22; letter-spacing: -.01em; }
p { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; list-style: none; }

.wrap { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.skip { position: absolute; left: -9999px; top: 0; background: var(--brand); color: #fff; padding: 10px 16px; z-index: 99; }
.skip:focus { left: 12px; top: 12px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 50px; padding: 0 26px; border-radius: 12px;
  font-size: 15px; font-weight: 600; border: 1px solid transparent;
  transition: transform .18s ease, background .18s ease, box-shadow .18s ease, color .18s ease;
  white-space: nowrap; cursor: pointer;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 14px 30px -14px rgba(15, 122, 77, .65); }
.btn-primary:hover { background: var(--brand-strong); }
.btn-ghost { background: #fff; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: #c8d8d0; }
.btn-light { background: #fff; color: var(--brand-strong); }
.btn-outline-light { border-color: rgba(255, 255, 255, .38); color: #fff; }
.btn-outline-light:hover { background: rgba(255, 255, 255, .12); }
.btn-sm { height: 40px; padding: 0 18px; font-size: 14px; border-radius: 10px; }

/* ---------- 头部 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid rgba(226, 235, 230, .8);
}
.header-inner { display: flex; align-items: center; gap: 24px; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; letter-spacing: -.01em; }
.brand img { width: 34px; height: 34px; border-radius: 9px; object-fit: cover; }
.brand em { font-style: normal; font-weight: 500; font-size: 12px; color: var(--muted); margin-left: 6px; letter-spacing: .02em; }
.site-nav { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.site-nav a { font-size: 14.5px; color: var(--ink-2); transition: color .18s ease; }
.site-nav a:hover { color: var(--brand); }
.site-nav .nav-cta { display: none; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-actions .btn { margin-left: 4px; }
.nav-toggle {
  display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: #fff;
  border-radius: 11px; padding: 0; cursor: pointer; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
}
.nav-toggle span { display: block; width: 17px; height: 1.8px; background: var(--ink); border-radius: 2px; transition: transform .2s ease, opacity .2s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.8px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.8px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: clamp(48px, 6vw, 84px) 0 clamp(40px, 5vw, 64px);
  background:
    radial-gradient(900px 520px at 88% -10%, #e3f3ea 0%, rgba(227, 243, 234, 0) 62%),
    radial-gradient(700px 420px at -10% 20%, #f2f8f4 0%, rgba(242, 248, 244, 0) 60%),
    #fff;
}
.hero-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: clamp(32px, 5vw, 64px); align-items: center; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .12em;
  color: var(--brand); background: var(--brand-soft); border-radius: 999px; padding: 7px 14px; margin-bottom: 22px;
}
.hero h1 { font-size: clamp(34px, 4.6vw, 58px); font-weight: 800; letter-spacing: -.02em; }
.hero h1 span { color: var(--brand); }
.lead { margin-top: 20px; font-size: 16.5px; color: var(--muted); max-width: 540px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 30px; }
.hero-tags li { position: relative; padding-left: 18px; font-size: 13.5px; color: var(--ink-2); }
.hero-tags li::before {
  content: ""; position: absolute; left: 0; top: 8px; width: 7px; height: 7px; border-radius: 50%;
  background: var(--brand); box-shadow: 0 0 0 3px rgba(15, 122, 77, .14);
}

.hero-visual { position: relative; padding-bottom: 26px; }
.hero-photo { margin: 0; border-radius: 22px; overflow: hidden; box-shadow: var(--shadow); }
.hero-photo img { width: 100%; aspect-ratio: 4 / 3.1; object-fit: cover; }
.dash {
  position: absolute; left: -18px; bottom: -26px; width: min(340px, 78%);
  background: rgba(255, 255, 255, .96); border: 1px solid var(--line); border-radius: 16px;
  padding: 16px 18px; box-shadow: 0 28px 60px -26px rgba(9, 48, 33, .45);
  backdrop-filter: blur(8px);
}
.dash-head { display: flex; align-items: center; justify-content: space-between; }
.dash-title { font-size: 13px; font-weight: 700; }
.dash-live { display: inline-flex; align-items: center; gap: 6px; font-size: 11.5px; color: var(--brand); background: var(--brand-soft); padding: 3px 9px; border-radius: 999px; }
.dash-live i { width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }
.dash-main { display: grid; grid-template-columns: 1fr 96px; gap: 12px; align-items: end; margin-top: 12px; }
.dash-sales span { display: block; font-size: 11.5px; color: var(--muted); }
.dash-sales b { display: block; font-size: 25px; letter-spacing: -.02em; line-height: 1.2; }
.dash-sales em { font-style: normal; font-size: 11px; color: var(--muted); }
.dash-bars { display: flex; align-items: flex-end; gap: 4px; height: 52px; }
.dash-bars i { flex: 1; height: var(--h); background: linear-gradient(180deg, #18a86c, #a7e4c6); border-radius: 3px 3px 0 0; }
.dash-rows { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--line); }
.dash-rows span { display: block; font-size: 10.5px; color: var(--muted); }
.dash-rows b { font-size: 14px; }
.dash-rows .ok { color: var(--brand); }
.dash-foot { display: flex; gap: 12px; margin-top: 10px; font-size: 10.5px; color: var(--muted); }
.dash-foot span { padding-left: 13px; position: relative; }
.dash-foot span::before { content: "✓"; position: absolute; left: 0; color: var(--brand); }

.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  margin-top: clamp(48px, 6vw, 76px); padding-top: 26px; border-top: 1px solid var(--line);
}
.hero-stats div { display: flex; flex-direction: column; gap: 2px; }
.hero-stats b { font-size: 26px; letter-spacing: -.02em; color: var(--brand-strong); }
.hero-stats span { font-size: 13px; color: var(--muted); }

/* ---------- 通用段落 ---------- */
.section { padding: clamp(64px, 8vw, 108px) 0; }
section[id] { scroll-margin-top: 86px; }
.band { background: var(--band); }
.dark { background: radial-gradient(900px 500px at 85% 0%, #143d2c 0%, var(--dark) 60%), var(--dark); color: #eaf4ef; }
.sec-head { max-width: 720px; margin-bottom: clamp(36px, 4.6vw, 56px); }
.kicker { font-size: 13px; font-weight: 700; letter-spacing: .1em; color: var(--brand); margin-bottom: 14px; }
.dark .kicker { color: #6fd9a7; }
.sec-head h2 { font-size: clamp(26px, 3.4vw, 40px); font-weight: 800; letter-spacing: -.02em; }
.sec-sub { margin-top: 14px; color: var(--muted); font-size: 15.5px; max-width: 660px; }
.dark .sec-sub { color: #a9c4b8; }

/* ---------- 功能卡 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.feature:hover { transform: translateY(-4px); border-color: #cfe3d8; box-shadow: 0 22px 44px -30px rgba(9, 48, 33, .5); }
.f-icon {
  display: inline-flex; width: 44px; height: 44px; align-items: center; justify-content: center;
  border-radius: 12px; background: var(--brand-soft); color: var(--brand); margin-bottom: 16px;
}
.f-icon svg { width: 22px; height: 22px; }
.feature h3 { font-size: 18px; margin-bottom: 8px; }
.feature > p { color: var(--muted); font-size: 14.5px; }
.feature ul { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.feature li { font-size: 12px; color: var(--ink-2); background: #f3f7f5; border-radius: 7px; padding: 4px 9px; }

/* ---------- 图文分栏 ---------- */
.split { display: grid; grid-template-columns: .92fr 1.08fr; gap: clamp(28px, 4.4vw, 60px); align-items: center; }
.split-reverse .split-media { order: 2; }
.split-media { margin: 0; border-radius: 20px; overflow: hidden; box-shadow: var(--shadow); }
.split-media img { width: 100%; aspect-ratio: 4 / 3.4; object-fit: cover; }
.split-copy h3 { font-size: clamp(22px, 2.4vw, 28px); font-weight: 800; }
.split-copy > p { margin-top: 12px; color: var(--muted); font-size: 15px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.chips span {
  font-size: 12.5px; font-weight: 600; color: var(--brand-strong);
  background: #e7f4ec; border: 1px solid #d3eade; border-radius: 999px; padding: 4px 12px;
}
.mini-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 26px; margin-top: 26px; }
.mini-grid h4 { font-size: 15px; margin-bottom: 5px; }
.mini-grid p { font-size: 13.5px; color: var(--muted); line-height: 1.6; }
.dlist { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 26px; margin-top: 24px; }
.dlist dt { font-size: 14.5px; font-weight: 700; }
.dlist dd { margin: 4px 0 0; font-size: 13.5px; color: var(--muted); }

/* ---------- 步骤 ---------- */
.steps {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px;
  margin-top: clamp(32px, 4vw, 48px); padding-top: 24px; border-top: 1px solid var(--line);
}
.steps li { position: relative; padding-right: 10px; }
.steps b { display: block; font-size: 14px; color: var(--brand-strong); margin-bottom: 4px; }
.steps span { font-size: 12.5px; color: var(--muted); }

/* ---------- 多端 ---------- */
.end-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid rgba(255, 255, 255, .14); }
.end-grid > div {
  padding: 22px 20px 22px 0; border-bottom: 1px solid rgba(255, 255, 255, .12);
  display: flex; flex-direction: column; gap: 4px;
}
.end-grid b { font-size: 16px; font-weight: 700; }
.end-grid span { font-size: 13px; color: #9fbdaf; }

/* ---------- AI ---------- */
.ai-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.ai-grid article { padding-top: 20px; border-top: 2px solid var(--brand); }
.ai-grid h3 { font-size: 17px; margin-bottom: 8px; }
.ai-grid p { font-size: 14px; color: var(--muted); }

/* ---------- 行业 ---------- */
.ind-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; background: var(--line); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.ind-grid article { background: #fff; padding: 26px 24px; }
.ind-grid h3 { font-size: 17px; margin-bottom: 8px; }
.ind-grid p { font-size: 13.8px; color: var(--muted); }

/* ---------- CTA ---------- */
.cta {
  background:
    radial-gradient(700px 380px at 82% 10%, rgba(52, 190, 127, .28) 0%, rgba(52, 190, 127, 0) 60%),
    linear-gradient(135deg, #0b5c3b 0%, #0c2f21 100%);
  color: #fff; padding: clamp(56px, 7vw, 92px) 0;
}
.cta-inner { max-width: 760px; }
.cta h2 { font-size: clamp(26px, 3.4vw, 40px); font-weight: 800; }
.cta p { margin-top: 14px; color: #c6e0d3; font-size: 15.5px; max-width: 620px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #08170f; color: #b7cec1; padding: 44px 0 36px; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 28px 40px; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { width: 38px; height: 38px; border-radius: 10px; object-fit: cover; }
.footer-brand b { color: #fff; font-size: 15px; }
.footer-brand p { font-size: 12.5px; color: #8fac9d; margin-top: 2px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 20px; margin-left: auto; }
.site-footer nav a { font-size: 13.5px; }
.site-footer nav a:hover { color: #fff; }
.copyright { width: 100%; font-size: 12.5px; color: #78978a; border-top: 1px solid rgba(255, 255, 255, .08); padding-top: 20px; }

/* ---------- 动效 ---------- */
[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
[data-reveal].in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  .btn:hover, .feature:hover { transform: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero-copy { max-width: 720px; }
  .hero-visual { max-width: 720px; }
  .dash { left: 12px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .end-grid { grid-template-columns: repeat(3, 1fr); }
  .ai-grid, .ind-grid { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; }
  .split-reverse .split-media { order: 0; }
  .split-media { max-width: 720px; }
  .steps { grid-template-columns: repeat(3, 1fr); row-gap: 22px; }
}

@media (max-width: 820px) {
  .wrap { width: calc(100% - 40px); }
  .header-inner { height: 64px; }
  .header-actions .btn { display: none; }
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 8px 20px 18px; box-shadow: 0 30px 50px -30px rgba(9, 48, 33, .4);
    transform: translateY(-8px); opacity: 0; visibility: hidden; pointer-events: none;
    transition: opacity .2s ease, transform .2s ease, visibility .2s;
  }
  .site-nav.open { opacity: 1; transform: none; visibility: visible; pointer-events: auto; }
  .site-nav a { padding: 13px 0; border-bottom: 1px solid #f0f5f2; font-size: 15.5px; }
  .site-nav a:last-child { border-bottom: 0; }
  .site-nav .nav-cta { display: block; color: var(--brand); font-weight: 700; }
  .hero { padding-top: 36px; }
  .hero-tags { gap: 8px 14px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 18px 16px; }
  .dash { position: static; margin: -30px auto 0; width: calc(100% - 28px); }
  .hero-visual { padding-bottom: 0; }
  .hero-photo img { aspect-ratio: 4 / 3; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .dlist { grid-template-columns: 1fr; gap: 14px; }
  .site-footer nav { margin-left: 0; }
}

@media (max-width: 560px) {
  .wrap { width: calc(100% - 32px); }
  .brand em { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .mini-grid { grid-template-columns: 1fr; gap: 16px; }
  .end-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-grid, .ind-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 12px; }
  .steps li { display: flex; gap: 10px; align-items: baseline; padding: 0; }
  .steps b { margin-bottom: 0; white-space: nowrap; }
  .btn { height: 48px; padding: 0 20px; width: 100%; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .dash-main { grid-template-columns: 1fr 78px; }
  .dash-rows { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .cta .hero-actions { flex-direction: column; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 22px; }
  .copyright { width: 100%; }
}