@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@500;600;700;800&family=Noto+Sans+SC:wght@400;500;700&display=swap');

:root {
  --bg: #f3f7ff;
  --bg-soft: #eaf1ff;
  --surface: #ffffff;
  --surface-2: #f8fbff;
  --text: #10213d;
  --muted: #5b6b84;
  --brand: #2f7cff;
  --brand-strong: #175dcb;
  --line: #d9e4fb;
  --hero-start: #1c63da;
  --hero-end: #123d96;
  --shadow: 0 22px 50px rgba(16, 55, 121, 0.14);
  --radius-xl: 28px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 8%, rgba(53, 125, 255, 0.18), transparent 28%),
    radial-gradient(circle at 88% 0%, rgba(89, 187, 255, 0.2), transparent 25%),
    linear-gradient(180deg, #f0f5ff 0%, #f8fbff 50%, #f4f8ff 100%);
  line-height: 1.75;
}

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

.container {
  width: min(var(--max-width), calc(100vw - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(14px);
  background: rgba(247, 251, 255, 0.86);
  border-bottom: 1px solid rgba(81, 120, 189, 0.18);
}

.header-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'Manrope', 'Noto Sans SC', sans-serif;
  font-weight: 700;
  letter-spacing: 0.2px;
  font-size: 21px;
}

.brand-dot {
  width: 13px;
  height: 13px;
  border-radius: 4px;
  transform: rotate(45deg);
  background: linear-gradient(140deg, #57a7ff 10%, #236fff 85%);
  box-shadow: 0 0 0 5px rgba(50, 124, 255, 0.16);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 24px;
  cursor: pointer;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav a {
  padding: 8px 13px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--muted);
  transition: all 180ms ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--brand-strong);
  background: rgba(47, 124, 255, 0.12);
}

.hero {
  padding: 62px 0 48px;
}

.hero-card {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--hero-start) 2%, #236ee6 36%, var(--hero-end) 100%);
  color: #f4f8ff;
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow);
}

.hero-card::before {
  content: '';
  position: absolute;
  width: 380px;
  height: 380px;
  right: -180px;
  top: -160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(122, 208, 255, 0.35), rgba(122, 208, 255, 0));
}

.hero-card::after {
  content: '';
  position: absolute;
  width: 460px;
  height: 220px;
  left: -120px;
  bottom: -140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(133, 201, 255, 0.3), rgba(133, 201, 255, 0));
}

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 24px;
  align-items: center;
}

.hero-main {
  position: relative;
  z-index: 1;
}

.hero h1 {
  margin: 0;
  max-width: 780px;
  font-family: 'Manrope', 'Noto Sans SC', sans-serif;
  font-size: clamp(30px, 4.2vw, 52px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.4px;
}

.hero p {
  margin: 16px 0 0;
  max-width: 720px;
  color: rgba(239, 248, 255, 0.92);
  font-size: 16px;
}

.hero-actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-points {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.hero-points li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(236, 248, 255, 0.95);
  font-size: 14px;
}

.hero-points li::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #8ed7ff;
  box-shadow: 0 0 0 4px rgba(142, 215, 255, 0.2);
}

.hero-side {
  display: grid;
  gap: 14px;
}

.hero-float {
  background: rgba(251, 254, 255, 0.96);
  border: 1px solid rgba(196, 220, 255, 0.6);
  border-radius: var(--radius-lg);
  color: var(--text);
  padding: 16px 18px;
  box-shadow: 0 14px 28px rgba(16, 55, 121, 0.22);
}

.hero-float strong {
  display: block;
  font-family: 'Manrope', 'Noto Sans SC', sans-serif;
  font-size: 27px;
  line-height: 1.1;
  color: var(--brand-strong);
}

.hero-float span {
  font-size: 13px;
  color: #53709e;
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 11px 22px;
  font-size: 14px;
  cursor: pointer;
  font-weight: 600;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(140deg, #5ca6ff, #2f7cff);
  color: #fff;
  box-shadow: 0 10px 22px rgba(37, 118, 255, 0.36);
}

.hero-card .btn-primary {
  background: linear-gradient(140deg, #ffffff, #eaf3ff);
  color: #1a56be;
}

.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(224, 242, 255, 0.66);
}

main {
  padding-bottom: 72px;
}

.section {
  margin-top: 44px;
}

.section-head {
  margin-bottom: 20px;
}

.section-head h2 {
  margin: 0;
  font-family: 'Manrope', 'Noto Sans SC', sans-serif;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.2;
}

.section-head p {
  margin: 10px 0 0;
  color: var(--muted);
  max-width: 760px;
}

.grid {
  display: grid;
  gap: 18px;
}

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

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

.card {
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: 0 10px 24px rgba(40, 85, 170, 0.07);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: #bfd5fd;
  box-shadow: 0 20px 36px rgba(31, 80, 162, 0.14);
}

.card h3 {
  margin: 0;
  font-size: 20px;
  font-family: 'Manrope', 'Noto Sans SC', sans-serif;
}

.card p {
  margin: 12px 0 0;
  color: var(--muted);
}

.portal-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.portal-item {
  background: linear-gradient(180deg, #f9fcff 0%, #eff5ff 100%);
  border: 1px solid #d6e5ff;
  border-radius: 14px;
  padding: 16px;
}

.portal-item strong {
  display: block;
  color: #1a5ec7;
  font-family: 'Manrope', 'Noto Sans SC', sans-serif;
  font-size: 17px;
  margin-bottom: 6px;
}

.portal-item span {
  display: block;
  color: #5a6e91;
  font-size: 13px;
}

.logo-wall {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.logo-item {
  border: 1px solid #dbe8ff;
  border-radius: 12px;
  background: #fff;
  text-align: center;
  padding: 14px 10px;
  color: #4f6790;
  font-size: 14px;
}

.metric {
  background: linear-gradient(145deg, #ffffff 0%, #ecf4ff 100%);
}

.metric-value {
  margin: 0;
  font-size: 38px;
  color: var(--brand-strong);
  font-weight: 800;
  font-family: 'Manrope', 'Noto Sans SC', sans-serif;
}

.metric-label {
  margin-top: 4px;
  font-size: 14px;
  color: var(--muted);
}

.timeline {
  margin: 0;
  padding-left: 20px;
}

.timeline li {
  margin-bottom: 10px;
  color: var(--muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(231, 244, 255, 0.2);
  border: 1px solid rgba(186, 225, 255, 0.4);
  color: #eaf6ff;
  font-size: 13px;
}

.section .badge {
  background: rgba(47, 124, 255, 0.12);
  color: var(--brand-strong);
  border: none;
}

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 56px;
  padding: 36px 0 26px;
  color: #607291;
  font-size: 14px;
  background: linear-gradient(180deg, rgba(244, 249, 255, 0), rgba(226, 238, 255, 0.45));
}

.footer-top {
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 2fr);
}

.footer-brand h3 {
  margin: 0;
  color: #173b76;
  font-family: 'Manrope', 'Noto Sans SC', sans-serif;
  font-size: 20px;
}

.footer-brand p {
  margin: 10px 0 0;
  color: #607291;
}

.footer-contact {
  margin-top: 10px;
  display: grid;
  gap: 6px;
}

.footer-links {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.footer-col h4 {
  margin: 0;
  color: #1d467f;
  font-size: 15px;
}

.footer-col a {
  display: block;
  color: #607291;
  margin-top: 8px;
  font-size: 14px;
}

.footer-col a:hover {
  color: #1f66d1;
}

.footer-bottom {
  border-top: 1px solid #d8e5fd;
  margin-top: 24px;
  padding-top: 14px;
  color: #6f83a4;
}

.fixed-trial {
  position: fixed;
  right: 24px;
  bottom: 26px;
  z-index: 40;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 108px;
  height: 44px;
  border-radius: 999px;
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.2px;
  background: linear-gradient(135deg, #53a2ff 0%, #2f7cff 100%);
  box-shadow: 0 14px 30px rgba(47, 124, 255, 0.4);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.fixed-trial:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(47, 124, 255, 0.5);
}

.contact-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  color: var(--muted);
}

.contact-list li + li {
  margin-top: 6px;
}

.form {
  display: grid;
  gap: 14px;
}

.input,
.textarea {
  width: 100%;
  border: 1px solid #c8d9fb;
  border-radius: 10px;
  font: inherit;
  padding: 11px 12px;
  background: #fff;
}

.input:focus,
.textarea:focus {
  outline: 2px solid rgba(56, 129, 255, 0.25);
  border-color: #8bb7ff;
}

.textarea {
  min-height: 132px;
  resize: vertical;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 420ms ease, transform 420ms ease;
}

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

.stagger > * {
  opacity: 0;
  transform: translateY(16px);
}

.stagger.visible > * {
  animation: riseIn 500ms ease forwards;
}

.stagger.visible > *:nth-child(2) {
  animation-delay: 90ms;
}

.stagger.visible > *:nth-child(3) {
  animation-delay: 180ms;
}

.stagger.visible > *:nth-child(4) {
  animation-delay: 270ms;
}

@keyframes riseIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1060px) {
  .hero-layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 980px) {
  .grid-3,
  .grid-2,
  .hero-side {
    grid-template-columns: 1fr;
  }

  .portal-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .footer-top,
  .footer-links {
    grid-template-columns: 1fr;
  }

  .hero-card {
    padding: 36px 24px;
  }
}

@media (max-width: 780px) {
  .nav-toggle {
    display: inline-block;
  }

  .main-nav {
    position: absolute;
    right: 20px;
    top: 70px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: 0 18px 28px rgba(38, 87, 175, 0.16);
    display: none;
    min-width: 184px;
    padding: 8px;
    flex-direction: column;
    align-items: stretch;
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    border-radius: 8px;
  }

  .hero h1 {
    font-size: 30px;
  }

  .portal-grid,
  .logo-wall {
    grid-template-columns: 1fr;
  }

  .fixed-trial {
    right: 14px;
    bottom: 14px;
    width: 96px;
    height: 40px;
    font-size: 13px;
  }
}