*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  background: #fffdf7;
  color: #1a1a1a;
  line-height: 1.6;
}

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

ul {
  list-style: none;
}

.va-container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.va-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 253, 247, 0.96);
  backdrop-filter: blur(12px);
}

.va-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
}

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

.va-brand-logo {
  width: 40px;
  height: auto;
  object-fit: contain;
}

.va-brand-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.va-nav {
  display: flex;
  align-items: center;
}

.va-nav-list {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
}

.va-nav-list a {
  position: relative;
  padding-bottom: 4px;
}

.va-nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: #ffb43a;
  transition: width 0.2s ease;
}

.va-nav-list a:hover::after {
  width: 100%;
}

.va-nav-toggle {
  display: none;
  width: 32px;
  height: 24px;
  border: none;
  background: transparent;
  flex-direction: column;
  justify-content: space-between;
  padding: 0;
  cursor: pointer;
}

.va-nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: #1a1a1a;
  transition: transform 0.2s ease, opacity 0.2s ease, top 0.2s ease, bottom 0.2s ease;
}

.va-nav-toggle-open span:first-child {
  transform: translateY(11px) rotate(45deg);
}

.va-nav-toggle-open span:nth-child(2) {
  opacity: 0;
}

.va-nav-toggle-open span:last-child {
  transform: translateY(-11px) rotate(-45deg);
}

.va-main {
  padding: 40px 0 60px;
}

.va-hero {
  display: flex;
  flex-direction: column;
  gap: 40px;
  align-items: stretch;
}

.va-hero-text {
  flex: 1 1 auto;
}

.va-kicker {
  font-size: 14px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #6b6b6b;
  margin-bottom: 8px;
}

.va-hero-title {
  font-size: 40px;
  line-height: 1.1;
  letter-spacing: 0.04em;
  font-weight: 300;
  margin-bottom: 24px;
}

.va-copy-block + .va-copy-block {
  margin-top: 10px;
}

.va-copy-title {
  font-size: 14px;
  font-weight: 600;
  font-style: italic;
  margin-bottom: 2px;
}

.va-copy-text {
  font-size: 14px;
  color: #3f3f3f;
}

.va-mail {
  border-bottom: 2px solid rgba(255, 180, 58, 0.6);
  padding-bottom: 1px;
}

.va-hero-visual {
  position: relative;
  flex: 0 0 auto;
  align-self: center;
  width: 280px;
  height: 360px;
}

.va-hero-circle {
  position: absolute;
  inset: 40px -50px 0 -50px;
  margin: auto;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: #ffcf68;
}

.va-phone {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 210px;
  height: 360px;
  border-radius: 36px;
  background: linear-gradient(145deg, #f6f6f6, #e0e0e0);
  box-shadow: 0 24px 40px rgba(0, 0, 0, 0.18);
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
}

.va-phone-notch {
  position: relative;
  width: 120px;
  height: 20px;
  border-radius: 10px;
  background: #111;
  align-self: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.va-phone-camera {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #5de0ff, #004a8f);
}

.va-phone-sensor {
  width: 26px;
  height: 4px;
  border-radius: 999px;
  background: #222;
}

.va-phone-screen {
  flex: 1;
  margin-top: 12px;
  border-radius: 28px;
  background: linear-gradient(160deg, #fdfbff, #f3f7ff);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 30px 16px;
}

.va-phone-logo img {
  width: 120px;
  max-width: 100%;
  object-fit: contain;
}

.va-phone-tagline {
  margin-top: 16px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #6b6b6b;
}

.va-floating-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.va-shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.4;
  border: 2px solid;
}

.va-shape-circle {
  width: 16px;
  height: 16px;
  border-color: #ffb4e6;
  top: 12%;
  left: 4%;
}

.va-shape-square {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  border-color: #ffdd80;
  bottom: 8%;
  left: 10%;
}

.va-shape-diamond {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  border-color: #9be4ff;
  top: 20%;
  right: 6%;
  transform: rotate(45deg);
}

@media (min-width: 900px) {
  .va-main {
    padding: 60px 0 80px;
  }

  .va-hero {
    flex-direction: row;
    align-items: center;
    gap: 80px;
  }

  .va-hero-text {
    flex: 0 0 52%;
  }

  .va-hero-visual {
    flex: 0 0 40%;
    width: 320px;
    height: 430px;
  }

  .va-hero-circle {
    width: 360px;
    height: 360px;
    inset: 40px -40px 0 -40px;
  }

  .va-hero-title {
    font-size: 52px;
  }

  .va-copy-text {
    font-size: 15px;
  }
}

@media (max-width: 768px) {
  .va-header-inner {
    padding-inline: 16px;
  }

  .va-nav-list {
    position: absolute;
    top: 64px;
    right: 18px;
    flex-direction: column;
    gap: 14px;
    background: #ffffff;
    border-radius: 12px;
    padding: 14px 18px;
    box-shadow: 0 16px 30px rgba(0, 0, 0, 0.12);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.18s ease, transform 0.18s ease;
  }

  .va-nav-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .va-nav-toggle {
    display: flex;
  }
}