:root {
  --blue: #0A84FF;
  --blue-deep: #0067E8;
  --green: #34C759;
  --green-deep: #10B84D;
  --ink: #111827;
  --muted: #7B8492;
  --line: rgba(17, 24, 39, 0.08);
  --bg: #F5F8FC;
  --card: rgba(255, 255, 255, 0.78);
  --shadow: 0 24px 70px rgba(34, 56, 93, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 10%, rgba(52, 199, 89, 0.12), transparent 30%),
    radial-gradient(circle at 80% 20%, rgba(10, 132, 255, 0.14), transparent 32%),
    linear-gradient(180deg, #FDFEFF 0%, #F3F7FC 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,0.42) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.42) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.35), transparent 70%);
}

.site-header {
  width: min(1120px, calc(100% - 40px));
  margin: 22px auto 0;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  position: sticky;
  top: 16px;
  z-index: 10;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.68);
  backdrop-filter: blur(22px);
  box-shadow: 0 18px 50px rgba(31, 48, 76, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 20px;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.04em;
}

.brand-icon {
  width: 36px;
  height: 36px;
  position: relative;
  display: inline-block;
  border-radius: 11px;
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.6), 0 8px 22px rgba(36, 53, 83, 0.14);
}

.brand-icon span,
.brand-icon i,
.logo-large span,
.logo-large i {
  position: absolute;
  display: block;
  border-radius: 50%;
}

.brand-icon span {
  left: 8px;
  top: 9px;
  width: 18px;
  height: 18px;
  background: linear-gradient(145deg, #17DB70, #0DBB4D);
}

.brand-icon span::after,
.logo-large span::after {
  content: "";
  position: absolute;
  left: 1px;
  bottom: -4px;
  width: 10px;
  height: 8px;
  background: inherit;
  border-radius: 0 0 0 8px;
  transform: rotate(-22deg);
}

.brand-icon i {
  right: 7px;
  bottom: 8px;
  width: 18px;
  height: 15px;
  background: linear-gradient(145deg, #0A8CFF, #0068EF);
}

.brand-icon i::after,
.logo-large i::after {
  content: "";
  position: absolute;
  right: -2px;
  bottom: -4px;
  width: 8px;
  height: 7px;
  background: inherit;
  border-radius: 0 0 8px 0;
  transform: rotate(28deg);
}

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

nav a {
  color: #566071;
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 18px;
  font-size: 14px;
  font-weight: 700;
}

nav a:hover {
  color: var(--ink);
  background: rgba(17, 24, 39, 0.05);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 0;
  border-radius: 16px;
  background: rgba(17, 24, 39, 0.06);
  cursor: pointer;
}

.menu-toggle span {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--ink);
}

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

.hero {
  width: min(1120px, calc(100% - 40px));
  margin: 58px auto 0;
  min-height: 680px;
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  align-items: center;
  gap: 42px;
}

.eyebrow,
.section-label,
.section-heading p {
  color: var(--blue);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1,
.section h2,
.download h2,
.policy-hero h1 {
  margin: 16px 0 18px;
  color: var(--ink);
  font-size: clamp(54px, 8vw, 92px);
  line-height: 0.92;
  letter-spacing: -0.075em;
}

.hero h1 span,
.section h2 span {
  color: var(--blue);
}

.hero p {
  max-width: 520px;
  margin: 0;
  color: #697382;
  font-size: 24px;
  line-height: 1.35;
  letter-spacing: -0.03em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 900;
  text-decoration: none;
}

.primary-button {
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--blue-deep));
  box-shadow: 0 14px 32px rgba(10, 132, 255, 0.28);
}

.secondary-button {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(17, 24, 39, 0.08);
}

.hero-visual {
  position: relative;
  height: 660px;
  border-radius: 52px;
  overflow: hidden;
  background: linear-gradient(145deg, rgba(255,255,255,0.66), rgba(255,255,255,0.32));
  border: 1px solid rgba(255,255,255,0.72);
  box-shadow: var(--shadow);
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 42px;
  border-radius: 42px;
  background:
    radial-gradient(circle at 34% 30%, rgba(52, 199, 89, 0.16), transparent 32%),
    radial-gradient(circle at 76% 70%, rgba(10, 132, 255, 0.18), transparent 34%);
  filter: blur(8px);
}

.bubble {
  position: absolute;
  color: #fff;
  min-width: 190px;
  padding: 24px 32px;
  border-radius: 999px;
  font-size: clamp(22px, 2.8vw, 32px);
  font-weight: 850;
  letter-spacing: -0.04em;
  box-shadow: 0 24px 48px rgba(42, 63, 97, 0.15);
}

.bubble::after {
  content: "";
  position: absolute;
  bottom: -3px;
  width: 30px;
  height: 28px;
  background: inherit;
}

.bubble-blue {
  background: linear-gradient(145deg, #1295FF, #0068EE);
  right: 42px;
}

.bubble-blue::after {
  right: 16px;
  border-radius: 0 0 22px 0;
  transform: rotate(30deg);
}

.bubble-green {
  background: linear-gradient(145deg, #5EE173, #21BF4F);
  left: 44px;
}

.bubble-green::after {
  left: 15px;
  border-radius: 0 0 0 22px;
  transform: rotate(-30deg);
}

.bubble.large {
  transform: scale(1.08);
}

.bubble.mid {
  top: 132px;
}

.bubble.small {
  top: 310px;
  min-width: 160px;
}

.hero-visual .bubble-green.large {
  top: 56px;
}

.hero-visual .bubble-blue.large {
  bottom: 94px;
}

.section {
  width: min(1120px, calc(100% - 40px));
  margin: 96px auto 0;
}

.section-heading {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 34px;
}

.section h2,
.download h2,
.policy-hero h1 {
  font-size: clamp(40px, 5.8vw, 68px);
  line-height: 0.98;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.card {
  min-height: 290px;
  padding: 28px;
  border-radius: 34px;
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.68);
  box-shadow: 0 20px 56px rgba(31, 48, 76, 0.09);
  backdrop-filter: blur(18px);
}

.card-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  color: #fff;
  font-size: 24px;
  font-weight: 900;
  margin-bottom: 28px;
}

.blue-card .card-icon { background: linear-gradient(145deg, var(--blue), var(--blue-deep)); }
.green-card .card-icon { background: linear-gradient(145deg, var(--green), var(--green-deep)); }
.white-card .card-icon { color: var(--ink); background: #fff; box-shadow: inset 0 0 0 1px var(--line); }
.dark-card .card-icon { background: linear-gradient(145deg, #202A3E, #070B14); }

.card h3 {
  margin: 0 0 12px;
  font-size: 24px;
  line-height: 1.05;
  letter-spacing: -0.05em;
}

.card p {
  margin: 0;
  color: #697382;
  font-size: 16px;
  line-height: 1.5;
}

.split-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 46px;
  align-items: center;
}

.section-text {
  color: #697382;
  font-size: 20px;
  line-height: 1.55;
  margin: 0;
}

.steps {
  display: grid;
  gap: 12px;
}

.step {
  display: grid;
  grid-template-columns: 54px 1fr;
  align-items: center;
  gap: 16px;
  padding: 18px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255,255,255,0.72);
  box-shadow: 0 14px 38px rgba(31, 48, 76, 0.07);
}

.step span {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  color: #fff;
  font-size: 22px;
  font-weight: 900;
  background: linear-gradient(145deg, var(--blue), var(--green));
}

.step p {
  margin: 0;
  color: #3C4655;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
}

.download {
  width: min(1120px, calc(100% - 40px));
  margin: 96px auto 0;
}

.download-card {
  text-align: center;
  padding: 70px 28px;
  border-radius: 44px;
  background: linear-gradient(145deg, rgba(255,255,255,0.78), rgba(255,255,255,0.44));
  border: 1px solid rgba(255,255,255,0.72);
  box-shadow: var(--shadow);
}

.logo-large {
  position: relative;
  width: 112px;
  height: 112px;
  border-radius: 32px;
  margin: 0 auto 24px;
  background: #fff;
  box-shadow: 0 18px 42px rgba(31, 48, 76, 0.14);
}

.logo-large span {
  left: 28px;
  top: 28px;
  width: 50px;
  height: 50px;
  background: linear-gradient(145deg, #17DB70, #0DBB4D);
}

.logo-large i {
  right: 23px;
  bottom: 26px;
  width: 52px;
  height: 42px;
  background: linear-gradient(145deg, #0A8CFF, #0068EF);
}

.download-card h2 {
  margin-bottom: 8px;
}

.download-card p {
  margin: 0 0 28px;
  color: #697382;
  font-size: 22px;
  font-weight: 700;
}

.site-footer {
  width: min(1120px, calc(100% - 40px));
  margin: 72px auto 28px;
  padding: 22px 4px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: #7B8492;
  font-size: 14px;
}

.site-footer div {
  display: flex;
  gap: 18px;
}

.site-footer a {
  color: #566071;
  text-decoration: none;
  font-weight: 700;
}

.policy-page {
  width: min(920px, calc(100% - 40px));
  margin: 64px auto 0;
}

.policy-hero {
  text-align: center;
  margin-bottom: 28px;
}

.policy-hero p {
  color: #697382;
  font-size: 18px;
  font-weight: 700;
}

.policy-card {
  padding: clamp(28px, 5vw, 58px);
  border-radius: 38px;
  background: rgba(255,255,255,0.76);
  border: 1px solid rgba(255,255,255,0.72);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.policy-card h2 {
  margin: 36px 0 12px;
  font-size: 25px;
  letter-spacing: -0.04em;
}

.policy-card h2:first-child {
  margin-top: 0;
}

.policy-card p {
  margin: 0 0 12px;
  color: #4C5665;
  font-size: 17px;
  line-height: 1.7;
}

.policy-card a {
  color: var(--blue);
  font-weight: 800;
}


.smart-section {
  margin-top: 88px;
}

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

.smart-card {
  min-height: 260px;
  padding: 34px;
  border-radius: 38px;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.72);
  box-shadow: 0 24px 64px rgba(31, 48, 76, 0.11);
}

.smart-card::before {
  content: "";
  position: absolute;
  inset: -40% -20% auto auto;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(255,255,255,0.24);
  filter: blur(2px);
}

.webdrop-card {
  color: #fff;
  background: linear-gradient(145deg, #1295FF, #0068EE);
}

.answer-card {
  color: #fff;
  background: linear-gradient(145deg, #5EE173, #17B84D);
}

.smart-icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  margin-bottom: 28px;
  border-radius: 20px;
  background: rgba(255,255,255,0.22);
  color: #fff;
  font-size: 25px;
  font-weight: 950;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.26);
}

.smart-card h3 {
  position: relative;
  margin: 0 0 12px;
  font-size: 32px;
  line-height: 1;
  letter-spacing: -0.055em;
}

.smart-card p {
  position: relative;
  max-width: 420px;
  margin: 0;
  color: rgba(255,255,255,0.88);
  font-size: 18px;
  line-height: 1.48;
  font-weight: 700;
}

@media (max-width: 900px) {
  .hero,
  .split-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    height: 560px;
  }

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

  .smart-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    width: calc(100% - 24px);
    top: 10px;
    border-radius: 24px;
  }

  .menu-toggle {
    display: flex;
  }

  nav {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    min-width: 190px;
    padding: 10px;
    display: grid;
    gap: 6px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255,255,255,0.78);
    box-shadow: 0 20px 52px rgba(31, 48, 76, 0.16);
    backdrop-filter: blur(22px);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-6px) scale(0.98);
    transition: opacity 0.18s ease, transform 0.18s ease;
  }

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

  nav a {
    display: block;
    padding: 13px 14px;
  }

  .hero,
  .section,
  .download,
  .site-footer,
  .policy-page {
    width: calc(100% - 28px);
  }

  .hero {
    margin-top: 40px;
    gap: 28px;
  }

  .hero h1 {
    font-size: 58px;
  }

  .hero p {
    font-size: 20px;
  }

  .hero-visual {
    height: 500px;
    border-radius: 38px;
  }

  .bubble {
    min-width: 142px;
    padding: 20px 24px;
    font-size: 22px;
  }

  .bubble-blue {
    right: 22px;
  }

  .bubble-green {
    left: 22px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .smart-card {
    min-height: 230px;
    padding: 28px;
    border-radius: 32px;
  }

  .smart-card h3 {
    font-size: 28px;
  }

  .smart-card p {
    font-size: 16px;
  }

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

.app-icon {
  width: 36px;
  height: 36px;
  display: inline-block;
  border-radius: 11px;
  object-fit: cover;
  box-shadow: 0 8px 22px rgba(36, 53, 83, 0.14);
}

.app-icon-large {
  display: block;
  object-fit: cover;
}

.bubble::after {
  display: none;
}

.contact-link {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0;
  color: #566071;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.contact-link:hover {
  color: var(--ink);
}

.contact-popup {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 30;
  min-width: 260px;
  padding: 18px;
  border-radius: 24px;
  background: rgba(255,255,255,0.86);
  border: 1px solid rgba(255,255,255,0.78);
  box-shadow: 0 24px 64px rgba(31, 48, 76, 0.18);
  backdrop-filter: blur(22px);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px) scale(0.98);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.contact-popup.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.contact-popup-title {
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 900;
}

.contact-email {
  width: 100%;
  border: 0;
  padding: 12px 14px;
  border-radius: 16px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--blue-deep));
  font-size: 15px;
  font-weight: 850;
  cursor: pointer;
}

.contact-hint {
  margin-top: 8px;
  color: #697382;
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}

@media (max-width: 640px) {
  .contact-popup {
    right: 14px;
    bottom: 14px;
    width: calc(100% - 28px);
  }
}


.hero-visual {
  overflow: hidden;
}

.hero-visual .bubble {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  white-space: nowrap;
  max-width: calc(100% - 44px);
  padding: 18px 27px;
  border-radius: 999px;
  line-height: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  will-change: transform, background, box-shadow, filter, opacity;
  transform: translate3d(0, 0, 0) rotate(0deg) scale(1);
  transition-property: transform, background, box-shadow, opacity, filter;
  transition-duration: 7.6s, 7.6s, 7.6s, 0.42s, 0.42s;
  transition-timing-function: cubic-bezier(.45, 0, .22, 1);
}

.hero-visual .bubble::before {
  display: none;
}

.hero-visual .bubble::after {
  display: none;
}

.hero-visual .bubble-blue::before {
  right: 18px;
  border-radius: 0 0 22px 0;
}

.hero-visual .bubble-green::before {
  left: 18px;
  border-radius: 0 0 0 22px;
  --tail-rotate: -26deg;
}

.hero-visual .bubble.is-blue {
  background: linear-gradient(145deg, #1295FF, #0068EE);
  box-shadow: 0 26px 56px rgba(10, 132, 255, 0.22);
}

.hero-visual .bubble.is-green {
  background: linear-gradient(145deg, #5EE173, #21BF4F);
  box-shadow: 0 26px 56px rgba(52, 199, 89, 0.22);
}

.hero-visual .bubble.is-changing {
  opacity: 0.38;
  filter: blur(8px);
}

.hero-bubble-1 {
  left: 54px;
  top: 58px;
  font-size: 28px;
  z-index: 2;
}

.hero-bubble-2 {
  right: 48px;
  top: 88px;
  font-size: 25px;
  z-index: 3;
}

.hero-bubble-3 {
  left: 88px;
  top: 238px;
  font-size: 23px;
  z-index: 2;
}

.hero-bubble-4 {
  right: 74px;
  top: 294px;
  font-size: 29px;
  z-index: 4;
}

.hero-bubble-5 {
  left: 44px;
  bottom: 124px;
  font-size: 25px;
  z-index: 3;
}

.hero-bubble-6 {
  right: 50px;
  bottom: 80px;
  font-size: 24px;
  z-index: 2;
}

.hero-bubble-7 {
  right: 132px;
  top: 206px;
  font-size: 21px;
  z-index: 5;
}

@keyframes bubbleMoveRight {
  0% {
    transform: translate3d(0, 0, 0) rotate(0deg) scale(1);
    background: linear-gradient(145deg, #5EE173, #21BF4F);
    box-shadow: 0 24px 48px rgba(42, 63, 97, 0.15);
  }
  100% {
    transform: translate3d(var(--move-x, 46px), var(--move-y, 8px), 0) rotate(var(--rotate, 2deg)) scale(1.035);
    background: linear-gradient(145deg, #1295FF, #0068EE);
    box-shadow: 0 26px 56px rgba(10, 132, 255, 0.22);
  }
}

@keyframes bubbleMoveLeft {
  0% {
    transform: translate3d(0, 0, 0) rotate(0deg) scale(1);
    background: linear-gradient(145deg, #1295FF, #0068EE);
    box-shadow: 0 24px 48px rgba(42, 63, 97, 0.15);
  }
  100% {
    transform: translate3d(calc(var(--move-x, 46px) * -1), var(--move-y, -8px), 0) rotate(calc(var(--rotate, -2deg) * -1)) scale(1.035);
    background: linear-gradient(145deg, #5EE173, #21BF4F);
    box-shadow: 0 26px 56px rgba(52, 199, 89, 0.22);
  }
}

@media (max-width: 640px) {
  .hero-visual .bubble {
    padding: 17px 22px;
  }

  .hero-bubble-1 { left: 24px; top: 52px; font-size: 23px; }
  .hero-bubble-2 { right: 22px; top: 104px; font-size: 21px; }
  .hero-bubble-3 { left: 36px; top: 218px; font-size: 20px; }
  .hero-bubble-4 { right: 26px; top: 292px; font-size: 23px; }
  .hero-bubble-5 { left: 22px; bottom: 126px; font-size: 21px; }
  .hero-bubble-6 { right: 22px; bottom: 78px; font-size: 20px; }
  .hero-bubble-7 { right: 68px; top: 176px; font-size: 19px; }
}