:root {
  --bg: #f4f1ea;
  --paper: rgba(255, 255, 255, 0.76);
  --paper-strong: #ffffff;
  --text: #15212f;
  --muted: #607082;
  --line: rgba(21, 33, 47, 0.12);
  --brand: #ff6b2c;
  --brand-deep: #cb3f13;
  --accent: #0b7c78;
  --accent-soft: #d8f1ef;
  --ink-dark: #0f1721;
  --shadow: 0 24px 70px rgba(18, 30, 44, 0.12);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --max-width: 1180px;
}
.red{
  display: contents;color: red;
}
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 107, 44, 0.18), transparent 24%),
    radial-gradient(circle at top right, rgba(11, 124, 120, 0.14), transparent 30%),
    linear-gradient(180deg, #f6f1e8 0%, #f2f5f7 45%, #f0ece5 100%);
  min-height: 100vh;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

.page-shell {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 18px;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 18px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.64);
  border-radius: 22px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 16px;
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.08em;
  background: linear-gradient(135deg, var(--brand) 0%, #ff9c54 100%);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
  line-height: 1;
}

.brand-copy strong {
  font-size: 1rem;
}

.brand-copy span:last-child {
  font-size: 0.78rem;
  color: var(--muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--muted);
}

.site-nav a {
  transition: color 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.nav-cta {
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--brand-deep);
  color: #fff !important;
}

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 0;
  border-radius: 14px;
  background: var(--ink-dark);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 6px auto;
  background: #fff;
  transition: transform 180ms ease, opacity 180ms ease;
}

.section {
  padding: 86px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 30px;
  align-items: center;
  min-height: min(820px, calc(100vh - 140px));
  padding-top: 52px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--brand-deep);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-copy h1,
.section-heading h2,
.split-copy h2,
.cta-copy h2 {
  margin: 0;
  font-size: clamp(2.6rem, 5vw, 3rem);
  line-height: 1.6;
  letter-spacing: -0.04em;
}

.hero-text,
.section-heading p,
.split-copy p,
.cta-copy p {
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--brand-deep) 0%, #e88b8b 100%);
  box-shadow: 0 18px 36px rgba(255, 107, 44, 0.28);
}

.button-secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.hero-tags li,
.trust-band div,
.type-card,
.feature-card,
.stack-card,
.criteria-card,
.faq-item,
.metric-card {
  border: 1px solid rgba(255, 255, 255, 0.66);
  background: var(--paper);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero-tags li {
  padding: 10px 16px;
  border-radius: 999px;
  color: var(--muted);
}

.hero-panel {
  position: relative;
}

.hero-panel::before,
.hero-panel::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
}

.hero-panel::before {
  inset: -48px auto auto -20px;
  width: 140px;
  height: 140px;
  background: rgba(255, 107, 44, 0.22);
}

.hero-panel::after {
  inset: auto -10px -30px auto;
  width: 180px;
  height: 180px;
  background: rgba(11, 124, 120, 0.16);
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: 24px;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(145deg, rgba(15, 23, 33, 0.96), rgba(30, 44, 61, 0.9)),
    radial-gradient(circle at top right, rgba(255, 107, 44, 0.3), transparent 40%);
  overflow: hidden;
}

.hero-grid::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.25;
  pointer-events: none;
}

.metric-card {
  position: relative;
  padding: 22px;
  border-radius: var(--radius-lg);
  color: #edf4ff;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.metric-card span {
  display: inline-block;
  margin-bottom: 14px;
  color: rgba(237, 244, 255, 0.68);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.metric-card strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.2rem;
  line-height: 1.35;
}

.metric-card p {
  margin: 0;
  color: rgba(237, 244, 255, 0.74);
  line-height: 1.7;
}

.accent-card {
  background: linear-gradient(160deg, rgba(255, 107, 44, 0.34), rgba(255, 255, 255, 0.08));
}

.signal-card {
  background: linear-gradient(160deg, rgba(11, 124, 120, 0.34), rgba(255, 255, 255, 0.08));
}

.trust-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: -34px;
  position: relative;
  z-index: 2;
}

.trust-band div {
  padding: 22px;
  border-radius: 22px;
}

.trust-band span {
  display: block;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 0.86rem;
}

.trust-band strong {
  font-size: 1.06rem;
}

.section-heading,
.split-copy {
  max-width: 760px;
  margin-bottom: 34px;
}

.card-grid {
  display: grid;
  gap: 20px;
}

.three-col {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.four-col {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-card,
.type-card {
  padding: 28px;
  border-radius: var(--radius-lg);
}

.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent-soft), #ffffff);
  color: var(--accent);
  font-weight: 800;
}

.feature-card h3,
.type-card h3,
.stack-card h3,
.timeline-item h3 {
  margin: 0 0 14px;
  font-size: 1.2rem;
}

.feature-card p,
.type-card p,
.timeline-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 26px;
  align-items: start;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.stack-card {
  padding: 24px;
  border-radius: var(--radius-lg);
}

.stack-card ul,
.criteria-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.9;
}

.dark-section {
  padding: 96px 32px;
  border-radius: 36px;
  background:
    radial-gradient(circle at top left, rgba(255, 107, 44, 0.24), transparent 28%),
    linear-gradient(135deg, #1c2b40 0%, #1f2a3b 60%, #415c71 100%);
  color: #eff6ff;
}

.dark-section .eyebrow,
.dark-section .section-heading p,
.dark-section .timeline-item p {
  color: rgba(239, 246, 255, 0.74);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 16px;
}

.timeline-item {
  position: relative;
  padding: 24px 20px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.timeline-item span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  border-radius: 14px;
  background: rgba(255, 107, 44, 0.16);
  color: #ffb58c;
  font-weight: 800;
}

.criteria-card {
  padding: 28px;
  border-radius: var(--radius-xl);
}

.faq-list {
  display: grid;
  gap: 16px;
}

.faq-item {
  padding: 8px 22px;
  border-radius: 20px;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  padding: 18px 0;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.8;
}

.cta-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 24px;
  padding: 34px;
  border-radius: 36px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.92)),
    radial-gradient(circle at top right, rgba(255, 107, 44, 0.16), transparent 28%);
  box-shadow: var(--shadow);
}

.apply-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.apply-form label {
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: var(--muted);
  font-size: 0.95rem;
}

.apply-form input,
.apply-form select,
.apply-form textarea {
  width: 100%;
  padding: 15px 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--text);
  outline: none;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.apply-form input:focus,
.apply-form select:focus,
.apply-form textarea:focus {
  border-color: rgba(255, 107, 44, 0.44);
  box-shadow: 0 0 0 4px rgba(255, 107, 44, 0.12);
}

.full-width {
  grid-column: 1 / -1;
}

.site-footer {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 30px 0;
}

.footdiv{
  text-align: center;
}
.site-footer strong,
.site-footer a {
  color: var(--text);
}

.site-footer p {
  margin: 10px 0 0;
  /* max-width: 32ch; */
  line-height: 1.8;
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 540ms ease, transform 540ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero,
  .split-section,
  .cta-section {
    grid-template-columns: 1fr;
  }

  .three-col,
  .four-col,
  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .trust-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 0;
  }
}

@media (max-width: 820px) {
  .page-shell {
    width: min(calc(100% - 20px), var(--max-width));
  }

  .site-header {
    top: 10px;
    padding: 14px 16px;
  }

  .nav-toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    background: rgba(255, 255, 255, 0.96);
    border-radius: 22px;
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .section {
    padding: 72px 0;
  }

  .hero {
    min-height: auto;
    padding-top: 34px;
  }

  .hero-grid,
  .stack-grid,
  .apply-form,
  .timeline,
  .three-col,
  .four-col,
  .trust-band {
    grid-template-columns: 1fr;
  }

  .dark-section,
  .cta-section {
    padding: 26px;
    border-radius: 28px;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .button,
  .nav-toggle span {
    transition: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}