:root {
  --color-ink: #111923;
  --color-ink-soft: #263341;
  --color-primary: #ff6a00;
  --color-primary-dark: #d94d00;
  --color-mint: #e8f8fb;
  --color-mint-soft: #f5fbfd;
  --color-orange: #ff7a00;
  --color-orange-dark: #d95d00;
  --color-yellow: #ffd34d;
  --color-cyan: #00b7e8;
  --color-cyan-dark: #007da3;
  --color-deep: #07131d;
  --color-line: #dce7ee;
  --color-muted: #65717f;
  --color-bg: #f6f8fb;
  --color-card: #ffffff;

  --bg: var(--color-bg);
  --bg-soft: var(--color-mint-soft);
  --surface: var(--color-card);
  --surface-alt: #fbfcfe;
  --ink: var(--color-ink);
  --ink-soft: var(--color-ink-soft);
  --muted: var(--color-muted);
  --line: var(--color-line);
  --line-strong: #bad5df;
  --primary: var(--color-primary);
  --primary-dark: var(--color-primary-dark);
  --primary-soft: #fff0e3;
  --accent: var(--color-orange);
  --accent-dark: var(--color-orange-dark);
  --warning-soft: #fff0e3;
  --blue-soft: #e9f9ff;
  --shadow: 0 26px 80px rgba(7, 19, 29, 0.14);
  --shadow-soft: 0 14px 38px rgba(7, 19, 29, 0.09);
  --shadow-image: 0 34px 90px rgba(7, 19, 29, 0.2);
  --radius: 8px;
  --radius-sm: 6px;
  --container: 1280px;
  --header-height: 72px;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 18%, rgba(255, 106, 0, 0.055), transparent 32%),
    linear-gradient(180deg, #ffffff 0%, #f8fafc 48%, #ffffff 100%);
  color: var(--ink);
  font-family: "Plus Jakarta Sans", "Segoe UI", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
  max-width: 100%;
}

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

button,
input,
select,
textarea {
  font: inherit;
  letter-spacing: 0;
}

button {
  cursor: pointer;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1,
.hero-title {
  margin-bottom: 18px;
  font-size: 4.4rem;
  line-height: 1.05;
  font-weight: 820;
  text-wrap: balance;
}

.hero-title span {
  display: block;
}

h2,
.section-title {
  margin-bottom: 14px;
  font-size: 2.12rem;
  line-height: 1.16;
  font-weight: 760;
  text-wrap: balance;
}

h3,
.card-title {
  margin-bottom: 10px;
  font-size: 1.18rem;
  line-height: 1.3;
  font-weight: 740;
}

p {
  margin-bottom: 16px;
}

ul,
ol {
  margin-top: 0;
  padding-left: 1.25rem;
}

li + li {
  margin-top: 6px;
}

.muted {
  color: var(--muted);
}

.strong {
  font-weight: 760;
}

.nowrap {
  white-space: nowrap;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

::selection {
  background: rgba(255, 106, 0, 0.2);
  color: var(--ink);
}