:root {
  --bg: 246 248 252;
  --fg: 12 20 32;
  --card: 255 255 255;
  --muted: 90 104 124;
  --stroke: 216 226 240;
  --aqua: 14 190 195;
  --coral: 255 107 84;
  --glow: 60 240 255;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.12);
  --shadow-strong: 0 50px 120px rgba(0, 0, 0, 0.28);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --max: 1200px;

  font-family: "Noto Sans SC", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-rendering: geometricPrecision;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html {
  scroll-behavior: smooth;
}

html.dark {
  --bg: 3 10 18;
  --fg: 232 244 255;
  --card: 10 18 30;
  --muted: 155 175 198;
  --stroke: 42 60 86;
  --aqua: 32 231 214;
  --coral: 255 122 96;
  --glow: 86 255 241;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.34);
  --shadow-strong: 0 50px 120px rgba(0, 0, 0, 0.50);
}

body {
  margin: 0;
  min-height: 100dvh;
  background: radial-gradient(1200px 800px at 20% 10%, rgba(var(--glow) / 0.15), transparent 60%),
    radial-gradient(900px 600px at 90% 20%, rgba(var(--aqua) / 0.12), transparent 55%),
    radial-gradient(1200px 800px at 30% 110%, rgba(var(--coral) / 0.10), transparent 50%),
    rgb(var(--bg));
  color: rgb(var(--fg));
}

* {
  box-sizing: border-box;
}

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

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

::selection {
  background: rgba(var(--aqua) / 0.24);
}

.display {
  font-family: "Noto Serif SC", ui-serif, Georgia, serif;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-radius: 999px;
  padding: 10px 14px;
  border: 1px solid rgba(var(--aqua), 0.25);
  background: rgba(var(--aqua), 0.08);
  font-size: 12px;
  font-weight: 700;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid rgb(var(--stroke));
  background: rgba(var(--card), 0.70);
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 700;
  backdrop-filter: blur(10px);
}

.btn {
  height: 48px;
  border-radius: 18px;
  padding: 0 22px;
  font-size: 14px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, opacity 180ms ease, border-color 180ms ease;
}

.btn-primary {
  background: rgb(var(--coral));
  color: white;
  box-shadow: 0 22px 60px rgba(255, 122, 96, 0.24);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 26px 70px rgba(255, 122, 96, 0.30);
}

.btn-secondary {
  background: rgba(var(--card), 0.70);
  border-color: rgb(var(--stroke));
  color: rgb(var(--fg));
  backdrop-filter: blur(12px);
}

.btn-secondary:hover {
  background: rgb(var(--card));
}

.btn-dark {
  background: rgb(var(--fg));
  color: rgb(var(--bg));
}

.btn-dark:hover {
  opacity: 0.96;
}

.nav-wrap {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  pointer-events: none;
}

.nav {
  pointer-events: auto;
  margin-top: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-radius: 18px;
  border: 1px solid rgb(var(--stroke));
  background: rgba(var(--card), 0.70);
  padding: 12px 14px;
  backdrop-filter: blur(16px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.10);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
}

.brand small {
  color: rgb(var(--muted));
  font-weight: 700;
  font-size: 12px;
  display: none;
}

.nav-links {
  display: none;
  gap: 22px;
  align-items: center;
}

.nav-links a {
  font-size: 14px;
  font-weight: 700;
  color: rgb(var(--muted));
  transition: color 180ms ease;
}

.nav-links a:hover {
  color: rgb(var(--fg));
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  border: 1px solid rgb(var(--stroke));
  background: rgba(var(--card), 0.70);
  color: rgb(var(--muted));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color 180ms ease, background 180ms ease;
}

.icon-btn:hover {
  color: rgb(var(--fg));
  background: rgba(var(--card), 0.85);
}

.main {
  position: relative;
}

.hero {
  padding-top: 132px;
  padding-bottom: 34px;
}

.hero-grid {
  display: grid;
  gap: 42px;
}

.h1 {
  font-size: 46px;
  line-height: 1.05;
  margin: 0;
  letter-spacing: -0.02em;
  font-weight: 900;
}

.gradient-text {
  background: linear-gradient(90deg, rgba(var(--aqua), 1), rgba(var(--glow), 1));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  font-size: 16px;
  line-height: 1.7;
  max-width: 520px;
  color: rgb(var(--muted));
  margin: 0;
}

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

.hint {
  margin-top: 8px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 700;
  color: rgb(var(--muted));
}

@keyframes cp-float {
  0% {
    transform: translate3d(0, 0, 0);
  }
  100% {
    transform: translate3d(0, -10px, 0);
  }
}

.float {
  animation: cp-float 4.6s ease-in-out infinite alternate;
}

.hero-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(var(--stroke), 0.95);
  background: rgba(var(--card), 0.70);
  padding: 18px;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-strong);
}

.hero-card .bg {
  position: absolute;
  inset: 0;
}

.hero-card .bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
  mix-blend-mode: multiply;
}

.hero-card .bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(var(--aqua), 0.16), transparent 55%, rgba(var(--coral), 0.10));
}

.hero-card .content {
  position: relative;
  display: grid;
  gap: 14px;
}

.hero-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.hero-top .title {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 800;
}

.hero-top .sub {
  font-size: 12px;
  color: rgb(var(--muted));
  margin-top: 4px;
}

.chip {
  border-radius: 16px;
  padding: 8px 10px;
  border: 1px solid rgba(var(--aqua), 0.25);
  background: rgba(var(--aqua), 0.10);
  font-size: 12px;
  font-weight: 800;
}

.stat-grid {
  display: grid;
  gap: 10px;
}

.stat {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgb(var(--stroke));
  background: rgba(var(--card), 0.80);
}

.stat .k {
  font-size: 12px;
  font-weight: 800;
  color: rgb(var(--muted));
}

.stat .v {
  font-size: 14px;
  font-weight: 900;
}

.section {
  padding-top: 88px;
}

.heading {
  max-width: 600px;
  display: grid;
  gap: 10px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-radius: 999px;
  border: 1px solid rgb(var(--stroke));
  background: rgba(var(--card), 0.60);
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 800;
  color: rgb(var(--muted));
  width: fit-content;
  backdrop-filter: blur(12px);
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: rgb(var(--aqua));
}

.h2 {
  font-size: 30px;
  margin: 0;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgb(var(--muted));
}

.grid-2 {
  display: grid;
  gap: 14px;
  margin-top: 34px;
}

.grid-4 {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.card {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid rgb(var(--stroke));
  background: rgba(var(--card), 0.70);
  padding: 20px;
  backdrop-filter: blur(14px);
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.card.hover:hover {
  transform: translateY(-2px);
  background: rgb(var(--card));
  box-shadow: var(--shadow);
}

.card .glow {
  position: absolute;
  right: -40px;
  top: -40px;
  width: 160px;
  height: 160px;
  border-radius: 999px;
  background: rgba(var(--aqua), 0.14);
  filter: blur(40px);
  transition: background 180ms ease;
}

.card.hover:hover .glow {
  background: rgba(var(--aqua), 0.22);
}

.feature-row {
  position: relative;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 14px;
  align-items: start;
}

.icon-box {
  width: 48px;
  height: 48px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(var(--aqua), 0.28);
  background: rgba(var(--aqua), 0.10);
}

.icon {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: rgb(var(--aqua));
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-title {
  font-size: 18px;
  margin: 0;
  font-weight: 900;
}

.feature-desc {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgb(var(--muted));
}

.step-top {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 800;
  color: rgb(var(--muted));
}

.step-num {
  width: 24px;
  height: 24px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgb(var(--fg));
  color: rgb(var(--bg));
  font-weight: 900;
}

.tabs {
  border-radius: 26px;
  border: 1px solid rgb(var(--stroke));
  background: rgba(var(--card), 0.70);
  padding: 18px;
  backdrop-filter: blur(14px);
}

.tabs-top {
  display: grid;
  gap: 14px;
}

.tabs-top .left {
  display: grid;
  gap: 8px;
}

.tabs-title {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 900;
}

.tabs-sub {
  font-size: 14px;
  color: rgb(var(--muted));
  line-height: 1.7;
}

.tab-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tab-btn {
  height: 40px;
  padding: 0 16px;
  border-radius: 16px;
  border: 1px solid rgb(var(--stroke));
  background: rgb(var(--card));
  color: rgb(var(--fg));
  font-size: 14px;
  font-weight: 900;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.tab-btn:hover {
  background: rgba(var(--card), 0.70);
}

.tab-btn.active {
  background: rgb(var(--fg));
  color: rgb(var(--bg));
  border-color: transparent;
}

.plan-grid {
  margin-top: 16px;
  display: grid;
  gap: 12px;
}

.plan-item {
  border-radius: 18px;
  border: 1px solid rgb(var(--stroke));
  background: rgb(var(--card));
  padding: 16px;
}

.plan-item .top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.plan-item .day {
  font-size: 12px;
  font-weight: 900;
  color: rgb(var(--muted));
}

.plan-item .name {
  margin-top: 6px;
  font-size: 16px;
  font-weight: 900;
}

.plan-item .volume {
  border-radius: 14px;
  background: rgba(var(--aqua), 0.12);
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 900;
}

.plan-item .focus {
  margin-top: 12px;
  font-size: 14px;
  color: rgb(var(--muted));
  line-height: 1.7;
}

.plan-item .focus strong {
  color: rgb(var(--fg));
}

.tabs-bottom {
  margin-top: 18px;
  display: grid;
  gap: 12px;
}

.grid-cta {
  display: grid;
  gap: 18px;
  margin-top: 34px;
}

.chat {
  border-radius: 26px;
  border: 1px solid rgb(var(--stroke));
  background: rgba(var(--card), 0.70);
  padding: 18px;
  backdrop-filter: blur(14px);
}

.chat-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}

.chat-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-radius: 999px;
  background: rgba(var(--aqua), 0.12);
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 900;
}

.bubbles {
  margin-top: 16px;
  display: grid;
  gap: 12px;
}

.bubble-row {
  display: flex;
}

.bubble-row.right {
  justify-content: flex-end;
}

.bubble {
  max-width: 92%;
  border-radius: 18px;
  border: 1px solid rgba(var(--aqua), 0.35);
  background: rgba(var(--aqua), 0.10);
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.7;
}

.bubble.user {
  border-color: rgba(var(--coral), 0.35);
  background:#007AFF;
  color: #fff;
}

.bubble .meta {
  font-size: 11px;
  font-weight: 900;
  color: rgb(var(--muted));
  margin-bottom: 4px;
}

.aside-card {
  border-radius: 26px;
  border: 1px solid rgb(var(--stroke));
  background: rgba(var(--card), 0.70);
  padding: 18px;
  backdrop-filter: blur(14px);
  display: grid;
  gap: 12px;
}

.aside-card .box {
  border-radius: 18px;
  border: 1px solid rgb(var(--stroke));
  background: rgb(var(--card));
  padding: 14px;
  font-size: 14px;
  line-height: 1.7;
  color: rgb(var(--muted));
}

.aside-card .box strong {
  color: rgb(var(--fg));
}

.testimonials {
  margin-top: 34px;
  display: grid;
  gap: 14px;
}

.quote {
  position: absolute;
  right: 16px;
  top: 16px;
  opacity: 0.40;
}

.metric {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid rgba(var(--aqua), 0.35);
  background: #333;
  color: #fff;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 900;
  margin-right: 8px;
  margin-top: 10px;
}

.faq {
  margin-top: 34px;
  display: grid;
  gap: 12px;
}

.faq-btn {
  width: 100%;
  text-align: left;
  cursor: pointer;
  border-radius: 26px;
  border: 1px solid rgb(var(--stroke));
  background: rgba(var(--card), 0.70);
  padding: 18px;
  backdrop-filter: blur(14px);
  transition: background 180ms ease;
}

.faq-btn:hover {
  background: rgb(var(--card));
}

.faq-q {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.faq-q strong {
  font-size: 14px;
  font-weight: 900;
}

.faq-a {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: rgb(var(--muted));
  display: none;
}

.faq-btn.open .faq-a {
  display: block;
}

.cta-section {
  padding: 78px 0;
}

.cta-box {
  border-radius: 32px;
  border: 1px solid rgba(var(--aqua), 0.20);
  background: linear-gradient(135deg, rgba(var(--aqua), 0.18), rgba(var(--card), 0.80) 40%, rgba(var(--coral), 0.14));
  padding: 28px;
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.16);
  overflow: hidden;
}

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

.footer {
  border-top: 1px solid rgb(var(--stroke));
  background: rgba(var(--card), 0.50);
  padding: 40px 0;
}

.footer-grid {
  display: grid;
  gap: 22px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  color: rgb(var(--muted));
  font-weight: 800;
  font-size: 14px;
}

.footer-links a:hover {
  color: rgb(var(--fg));
}

.footer-links button {
  border: 0;
  background: rgba(var(--aqua), 0.12);
  color: rgb(var(--fg));
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 900;
}

.footer-links button:hover {
  background: rgba(var(--aqua), 0.18);
}

.copyright {
  margin-top: 20px;
  font-size: 12px;
  color: rgb(var(--muted));
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal.open {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.40);
  backdrop-filter: blur(10px);
}

.modal-panel {
  position: relative;
  width: 100%;
  max-width: 540px;
  border-radius: 30px;
  border: 1px solid rgb(var(--stroke));
  background: rgb(var(--card));
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.modal-head {
  padding: 22px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.modal-title {
  margin: 0;
  font-size: 24px;
  font-weight: 900;
}

.modal-sub {
  margin-top: 6px;
  font-size: 14px;
  color: rgb(var(--muted));
}

.modal-close {
  width: 40px;
  height: 40px;
  border-radius: 16px;
  border: 1px solid rgb(var(--stroke));
  background: transparent;
  cursor: pointer;
  color: rgb(var(--muted));
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  color: rgb(var(--fg));
}

.modal-body {
  padding: 0 22px 22px;
  display: grid;
  gap: 14px;
}

.contact-grid {
  display: grid;
  gap: 12px;
}

.contact-card {
  border-radius: 22px;
  border: 1px solid rgb(var(--stroke));
  background: rgba(var(--card), 0.60);
  padding: 16px;
}

.contact-top {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 900;
}

.contact-value {
  margin-top: 10px;
  font-size: 14px;
  color: rgb(var(--muted));
}

.small-note {
  border-radius: 22px;
  border: 1px solid rgb(var(--stroke));
  background: rgba(var(--card), 0.50);
  padding: 14px;
  font-size: 14px;
  color: rgb(var(--muted));
  line-height: 1.7;
}

.modal-foot {
  border-top: 1px solid rgb(var(--stroke));
  padding: 14px 22px;
  font-size: 12px;
  color: rgb(var(--muted));
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-simple {
  padding-top: 110px;
  padding-bottom: 80px;
}

.back-link {
  font-size: 14px;
  font-weight: 900;
  color: rgb(var(--muted));
}

.back-link:hover {
  color: rgb(var(--fg));
}

.simple-text {
  margin-top: 16px;
  max-width: 720px;
  display: grid;
  gap: 12px;
  font-size: 14px;
  line-height: 1.8;
  color: rgb(var(--muted));
}

@media (min-width: 820px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
  }

  .h1 {
    font-size: 58px;
  }

  .lead {
    font-size: 18px;
  }

  .nav-links {
    display: flex;
  }

  .brand small {
    display: inline;
  }

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

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

  .tabs-top {
    grid-template-columns: 1fr auto;
    align-items: end;
  }

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

  .grid-cta {
    grid-template-columns: 1fr 0.9fr;
    align-items: start;
  }

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

  .cta-box {
    padding: 46px;
  }

  .cta-grid {
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .footer-grid {
    grid-template-columns: 1fr auto;
    align-items: center;
  }

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