:root {
  --bg: #ffffff;
  --soft-bg: #eef5ff;
  --hero-bg: #eaf2ff;
  --hero-top: #f7fbff;
  --hero-bottom: #e1edff;
  --text: #13233a;
  --muted: #66809e;
  --faint: #9aacca;
  --accent: #2563eb;
  --accent-2: #4f86f7;
  --accent-3: #1d4ed8;
  --line: #d2e0f5;
  --shadow: 0 22px 52px rgba(37, 99, 235, 0.13);
  --header-bg: rgba(247, 251, 255, 0.92);
  --header-line: rgba(210, 224, 245, 0.7);
  --brand-muted: #607594;
  --accent-shadow: rgba(37, 99, 235, 0.26);
  --secondary-border: #b7cdf4;
  --toggle-bg: #ffffff;
  --toggle-shadow: rgba(38, 66, 108, 0.12);
  --hero-glow: rgba(83, 139, 255, 0.22);
  --hero-fade: rgba(234, 242, 255, 0);
  --hero-dot: #cddcf3;
  --accent-glow: rgba(37, 99, 235, 0.18);
  --card-shadow: rgba(28, 57, 103, 0.09);
  --card-shadow-hover: rgba(28, 57, 103, 0.14);
  --solution-shadow: rgba(37, 99, 235, 0.18);
  --stats-start: #eef5ff;
  --stats-end: #dceaff;
  --stat-label: #49617d;
  --footer-line: #e6eef8;
  --footer-muted: #8aa0ba;
  --footer-divider: #c8d7e9;
  --footer-link: #71869f;
  --icon-muted: #7e94ad;
  --accent-rgb: 37, 99, 235;
  --radius: 8px;
  --container: 1080px;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
}

.scroll-anchor {
  position: relative;
  display: block;
  top: -90px;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

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

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

.container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--header-bg);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--header-line);
}

.header-inner {
  min-height: 80px;
  display: flex;
  align-items: center;
  gap: 26px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.brand-mark {
  width: 42px;
  height: 34px;
  display: inline-grid;
  place-items: center;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-text {
  display: grid;
  gap: 1px;
  max-width: 225px;
}

.brand-text strong {
  font-size: 16px;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-text small {
  color: var(--brand-muted);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0;
}

.main-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  flex: 1 1 auto;
  font-size: 14px;
  font-weight: 700;
}

.main-nav a {
  position: relative;
  white-space: nowrap;
  padding: 30px 0 26px;
}

.main-nav a.is-active::after,
.main-nav a:hover::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 18px;
  width: 24px;
  height: 2px;
  border-radius: 999px;
  background: var(--accent);
  transform: translateX(-50%);
}

.header-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 28px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
  box-shadow: none;
}

.header-cta,
.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 14px 28px var(--accent-shadow);
}

.btn-secondary {
  color: var(--accent);
  border: 1px solid var(--secondary-border);
  background: rgba(255, 255, 255, 0.62);
}

.btn.small {
  min-height: 38px;
  padding: 0 24px;
  font-size: 13px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 8px;
  background: var(--toggle-bg);
  color: var(--text);
  box-shadow: 0 10px 28px var(--toggle-shadow);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
  border-radius: 2px;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 500px;
  padding: 62px 0 70px;
  background:
    radial-gradient(circle at 68% 38%, var(--hero-glow), transparent 30%),
    linear-gradient(180deg, var(--hero-top) 0%, var(--hero-bg) 100%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 120px;
  background: linear-gradient(180deg, var(--hero-fade), var(--hero-bottom));
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 39% 61%;
  align-items: center;
  gap: 20px;
}

.hero-copy {
  padding-top: 14px;
}

.hero-copy h1 {
  margin: 0;
  font-size: 54px;
  line-height: 1.28;
  font-weight: 900;
  letter-spacing: 0;
}

.hero-copy h1 span {
  display: block;
}

.hero-copy h1 strong {
  color: var(--accent);
  font-style: normal;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 42px;
}

.hero-visual {
  min-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual img {
  width: min(620px, 100%);
  filter: drop-shadow(0 34px 44px var(--accent-shadow));
}

.hero-dots {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: 43px;
  display: flex;
  gap: 10px;
  transform: translateX(-50%);
}

.hero-dots span {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--hero-dot);
}

.hero-dots span:first-child {
  width: 22px;
  background: var(--accent);
}

.strength-band {
  margin-top: -40px;
  position: relative;
  z-index: 5;
}

.strengths {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  padding: 38px 50px;
  background: rgba(255, 255, 255, 0.96);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.strength-item {
  display: grid;
  grid-template-columns: 54px 1fr;
  align-items: center;
  gap: 16px;
}

.strength-icon,
.solution-icon {
  display: grid;
  place-items: center;
  color: var(--accent);
  background: radial-gradient(circle, var(--accent-glow), rgba(var(--accent-rgb), 0.04) 62%, transparent);
}

.strength-icon {
  width: 54px;
  height: 54px;
}

.strength-icon svg {
  width: 36px;
  height: 36px;
}

.strength-item h3 {
  margin: 0 0 4px;
  font-size: 18px;
  line-height: 1.35;
}

.strength-item p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.solutions-section {
  padding: 78px 0 40px;
  background: #fff;
}

.solutions-layout {
  position: relative;
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 48px;
  align-items: start;
}

.section-intro {
  padding-top: 18px;
}

.section-intro h2 {
  position: relative;
  margin: 0 0 32px;
  font-size: 28px;
  line-height: 1.25;
}

.section-intro h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -15px;
  width: 31px;
  height: 3px;
  border-radius: 99px;
  background: var(--accent);
}

.section-intro p {
  margin: 0 0 38px;
  color: var(--muted);
  font-size: 14px;
}

.solution-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.solution-card {
  position: relative;
  overflow: hidden;
  min-height: 238px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 16px 36px var(--card-shadow);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.solution-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 46px var(--card-shadow-hover);
}

.solution-image {
  width: 100%;
  height: 114px;
  object-fit: cover;
}

.solution-icon {
  position: absolute;
  left: 24px;
  top: 96px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 10px 28px var(--solution-shadow);
}

.solution-icon svg {
  width: 28px;
  height: 28px;
}

.solution-body {
  padding: 40px 24px 24px;
}

.solution-body h3 {
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.4;
}

.solution-body p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.75;
}

.carousel-next {
  position: absolute;
  right: -56px;
  top: 96px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--secondary-border);
  border-radius: 50%;
  background: #fff;
  color: var(--accent);
}

.carousel-next svg {
  width: 22px;
  height: 22px;
}

.stats-section {
  padding: 20px 0 54px;
}

.stats-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  padding: 34px 58px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--stats-start), var(--stats-end));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.66);
}

.stat-item {
  display: grid;
  grid-template-columns: 44px auto;
  grid-template-areas: "icon value" "icon label";
  align-items: center;
  column-gap: 16px;
  color: var(--accent);
}

.stat-icon {
  grid-area: icon;
}

.stat-icon svg {
  width: 38px;
  height: 38px;
}

.stat-item strong {
  grid-area: value;
  font-size: 36px;
  line-height: 1;
  font-weight: 900;
}

.stat-item span {
  grid-area: label;
  color: var(--stat-label);
  font-size: 13px;
  font-weight: 700;
}

.site-footer {
  padding: 38px 0 0;
  background: #fff;
  border-top: 1px solid var(--footer-line);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(220px, 1.5fr) repeat(4, minmax(110px, 1fr));
  gap: 48px;
  align-items: start;
}

.footer-brand p {
  max-width: 280px;
  margin: 16px 0 22px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

.footer-column {
  display: grid;
  gap: 12px;
}

.footer-column h3 {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.3;
}

.footer-column a {
  color: var(--muted);
  font-size: 13px;
}

.contact-list a {
  display: grid;
  grid-template-columns: 20px 1fr;
  align-items: center;
  gap: 8px;
}

.contact-list svg {
  width: 18px;
  height: 18px;
  color: var(--icon-muted);
}

.footer-bottom {
  margin-top: 32px;
  padding: 18px 24px;
  border-top: 1px solid var(--footer-line);
  color: var(--footer-muted);
  text-align: center;
  font-size: 12px;
}

.footer-bottom > * {
  display: inline-flex;
  align-items: center;
}

.footer-bottom > * + *::before {
  content: "|";
  margin: 0 10px;
  color: var(--footer-divider);
}

.filing-link {
  color: var(--footer-link);
}

.filing-link:hover {
  color: var(--accent);
}

.filing-icon {
  width: 16px;
  height: 16px;
  margin-right: 5px;
  object-fit: contain;
}

@media (max-width: 1100px) {
  .header-inner {
    gap: 20px;
  }

  .main-nav {
    gap: 20px;
  }

  .carousel-next {
    display: none;
  }
}

@media (max-width: 900px) {
  .container {
    width: min(100% - 32px, var(--container));
  }

  .header-inner {
    min-height: 68px;
  }

  .main-nav {
    position: absolute;
    top: 68px;
    left: 16px;
    right: 16px;
    display: none;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    padding: 12px;
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

  .main-nav.is-open {
    display: grid;
  }

  .main-nav a {
    padding: 12px;
  }

  .main-nav a.is-active::after,
  .main-nav a:hover::after {
    display: none;
  }

  .header-cta {
    margin-left: auto;
  }

  .nav-toggle {
    display: block;
  }

  .hero {
    padding-top: 40px;
  }

  .hero-grid,
  .solutions-layout {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    text-align: center;
  }

  .hero-copy h1 {
    font-size: 42px;
  }

  .hero-actions {
    justify-content: center;
  }

  .strengths,
  .stats-band {
    grid-template-columns: repeat(2, 1fr);
  }

  .solution-cards {
    grid-template-columns: 1fr;
  }

  .section-intro {
    text-align: center;
  }

  .section-intro h2::after {
    left: 50%;
    transform: translateX(-50%);
  }

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

@media (max-width: 580px) {
  .brand-text strong {
    font-size: 17px;
  }

  .header-cta {
    display: none;
  }

  .hero-copy h1 {
    font-size: 34px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: min(240px, 100%);
  }

  .hero-visual {
    min-height: 250px;
  }

  .strengths {
    grid-template-columns: 1fr;
    padding: 28px 22px;
  }

  .stats-band {
    grid-template-columns: 1fr;
    padding: 28px 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}