@charset "UTF-8";

:root {
  --bg: #0f1219;
  --panel: #171c28;
  --paper: #f3f0ff;
  --ink: #12151d;
  --mute: #6d7388;
  --violet: #6c5ce7;
  --violet-deep: #4834d4;
  --lime: #c8f542;
  --mint: #7ef0c3;
  --line: rgba(255, 255, 255, 0.1);
  --nav-shadow: 2px 2px 0 rgba(18, 21, 29, 0.35);
  --float-shadow: 12px 16px 0 rgba(108, 92, 231, 0.22);
  --header-h: 74px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: #ebe8f8;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 90;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.shell {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(235, 232, 248, 0.94);
  border-bottom: 1px solid rgba(18, 21, 29, 0.08);
  backdrop-filter: blur(10px);
}
.header-bar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  height: var(--header-h);
  column-gap: 18px;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand img {
  width: 42px; height: 42px;
  object-fit: contain;
  background: #fff;
  box-shadow: var(--nav-shadow);
}
.brand-copy { display: grid; gap: 2px; line-height: 1.05; }
.brand-copy strong { font-size: 18px; letter-spacing: -0.02em; }
.brand-copy small { color: var(--mute); font-size: 11px; font-weight: 800; letter-spacing: 0.12em; }
.main-nav { justify-self: center; }
.main-nav ul { display: flex; gap: 20px; font-size: 14px; font-weight: 800; }
.main-nav a {
  position: relative;
  display: flex;
  align-items: center;
  height: var(--header-h);
  white-space: nowrap;
}
.main-nav a.is-active,
.main-nav a:hover { color: var(--violet-deep); }
.main-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 18px;
  height: 2px;
  background: var(--violet);
}
.header-get { justify-self: end; }
.header-get, .mobile-get, .btn-main {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  color: #10131a;
  background: var(--lime);
  font-weight: 900;
  font-size: 13px;
  box-shadow: var(--nav-shadow);
  white-space: nowrap;
}
.btn-main { min-height: 52px; min-width: 168px; font-size: 15px; }
.btn-main:hover { filter: brightness(1.05); }
.btn-ghost {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  padding: 0 4px;
  font-weight: 800;
  color: #d7d2ff;
  border-bottom: 2px solid rgba(200, 245, 66, 0.55);
}
.mobile-actions { display: none; align-items: center; gap: 8px; }
.menu-toggle {
  width: 42px; height: 42px;
  display: grid;
  gap: 5px;
  place-content: center;
  border: 1px solid var(--ink);
}
.menu-toggle span { display: block; width: 16px; height: 2px; background: var(--ink); }

.hero {
  position: relative;
  overflow: hidden;
  padding: 48px 0 72px;
  color: #f4f2ff;
  background:
    radial-gradient(circle at 80% 10%, rgba(108, 92, 231, 0.45), transparent 32%),
    radial-gradient(circle at 10% 80%, rgba(200, 245, 66, 0.12), transparent 28%),
    linear-gradient(160deg, #171b2b 0%, #0f1219 55%, #151226 100%);
}
.hero-word {
  position: absolute;
  left: 4%;
  top: 8%;
  z-index: 0;
  font-size: clamp(120px, 22vw, 260px);
  font-weight: 900;
  letter-spacing: -0.08em;
  line-height: 0.8;
  color: rgba(255, 255, 255, 0.04);
  pointer-events: none;
  user-select: none;
}
.hero-stage {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(230px, 0.8fr);
  gap: 28px;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--lime);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
}
h1 {
  margin: 0;
  font-size: clamp(44px, 7vw, 72px);
  line-height: 0.95;
  letter-spacing: -0.04em;
}
.hero-slogan {
  margin: 14px 0 12px;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  line-height: 1.25;
}
.hero-description {
  margin: 0 0 22px;
  color: #b8b6cc;
  max-width: 440px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.page-stamp { margin: 16px 0 0; color: #8c89a3; font-size: 12px; }

.phone-visual {
  position: relative;
  width: 248px;
}
.glow {
  position: absolute;
  inset: 10% -10%;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.45), transparent 70%);
  filter: blur(18px);
}
.phone-shell {
  position: relative;
  z-index: 1;
  padding: 12px 12px 16px;
  background: linear-gradient(165deg, #2a3144, #12161f);
  border-radius: 34px;
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.06);
}
.phone-screen {
  overflow: hidden;
  border-radius: 22px;
  background: #fff;
}
.phone-status {
  display: flex;
  justify-content: space-between;
  padding: 8px 12px 0;
  color: #5c6174;
  font-size: 10px;
  font-weight: 800;
}
.phone-screen img {
  width: 100%;
  height: auto;
  max-height: 390px;
  object-fit: cover;
}
.float-pill {
  position: absolute;
  right: -18px;
  bottom: 42px;
  z-index: 2;
  padding: 10px 14px;
  color: var(--ink);
  background: var(--lime);
  font-size: 12px;
  font-weight: 900;
  box-shadow: var(--float-shadow);
}
.float-pill.pulse { animation: pulse-y 3.6s ease-in-out infinite; }

@keyframes pulse-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.signal-board { display: grid; gap: 10px; }
.signal-card {
  padding: 14px 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 6px 8px 0 rgba(0, 0, 0, 0.18);
}
.signal-card span {
  display: block;
  margin-bottom: 6px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
}
.signal-card strong { display: block; font-size: 18px; margin-bottom: 4px; }
.signal-card small { color: rgba(18, 21, 29, 0.7); }
.signal-card.lime { background: var(--lime); color: var(--ink); }
.signal-card.violet { background: var(--violet); color: #fff; }
.signal-card.violet small { color: rgba(255, 255, 255, 0.78); }
.signal-card.ink { background: #232838; color: #f3f0ff; }
.signal-card.ink small { color: #a9aec4; }
.signal-meter {
  padding: 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
}
.meter-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
  font-weight: 800;
}
.meter-head em { color: var(--lime); font-style: normal; font-size: 12px; }
.meter-bars {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  height: 42px;
  margin-bottom: 10px;
  align-items: end;
}
.meter-bars i {
  display: block;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, var(--lime), var(--violet));
  animation: bar 2.8s ease-in-out infinite;
}
.meter-bars i:nth-child(1) { height: 40%; animation-delay: 0s; }
.meter-bars i:nth-child(2) { height: 70%; animation-delay: 0.15s; }
.meter-bars i:nth-child(3) { height: 55%; animation-delay: 0.3s; }
.meter-bars i:nth-child(4) { height: 90%; animation-delay: 0.45s; }
.meter-bars i:nth-child(5) { height: 62%; animation-delay: 0.6s; }
.signal-meter p { margin: 0; color: #a9aec4; font-size: 13px; }

@keyframes bar {
  0%, 100% { transform: scaleY(1); }
  50% { transform: scaleY(0.72); }
}

.section-heading { margin-bottom: 28px; }
.section-index {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--violet-deep);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}
.section-heading h2 {
  margin: 0 0 8px;
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -0.03em;
}
.section-heading p { margin: 0; color: var(--mute); }
.section-heading.light .section-index { color: var(--lime); }
.section-heading.light p { color: #a9aec4; }

.features { padding: 72px 0; background: var(--paper); }
.feature-mosaic {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 0.9fr;
  grid-template-rows: auto auto;
  gap: 14px;
}
.feat {
  position: relative;
  overflow: hidden;
  padding: 22px 20px;
  background: #fff;
  border: 1px solid rgba(18, 21, 29, 0.08);
  box-shadow: 0 14px 34px rgba(72, 52, 212, 0.08);
}
.feat.big {
  grid-row: span 2;
  background: linear-gradient(160deg, #6c5ce7, #4834d4);
  color: #fff;
  box-shadow: var(--float-shadow);
}
.feat.offset { transform: translateY(18px); }
.feat.wide { grid-column: 2 / span 2; background: linear-gradient(120deg, #fff, #eefce0); }
.feat b {
  display: block;
  margin-bottom: 10px;
  color: var(--violet);
  font-size: 13px;
  letter-spacing: 0.08em;
}
.feat.big b { color: var(--lime); }
.feat h3 { margin: 0 0 8px; font-size: 24px; }
.feat p { margin: 0; color: var(--mute); }
.feat.big p { color: rgba(255, 255, 255, 0.82); }
.feat-visual {
  display: flex;
  gap: 8px;
  align-items: end;
  margin-top: 28px;
  height: 84px;
}
.feat-visual span {
  flex: 1;
  border-radius: 10px 10px 0 0;
  background: rgba(200, 245, 66, 0.85);
  animation: bar 3s ease-in-out infinite;
}
.feat-visual span:nth-child(1) { height: 45%; }
.feat-visual span:nth-child(2) { height: 80%; animation-delay: 0.2s; }
.feat-visual span:nth-child(3) { height: 60%; animation-delay: 0.4s; }
.mini-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.mini-tags li {
  padding: 6px 10px;
  background: rgba(108, 92, 231, 0.1);
  color: var(--violet-deep);
  font-size: 12px;
  font-weight: 800;
}

.interfaces {
  padding: 72px 0;
  background:
    radial-gradient(circle at 18% 20%, rgba(198, 255, 92, 0.08), transparent 36%),
    linear-gradient(160deg, #121621 0%, #1a1630 55%, #10131c 100%);
  color: #f3f0ff;
}
.signal-deck {
  display: grid;
  grid-template-columns: minmax(220px, 280px) 1fr;
  gap: 28px;
  align-items: stretch;
}
.signal-hero {
  margin: 0;
  padding: 18px;
  background: linear-gradient(180deg, #242a3d, #171c2a);
  border: 1px solid rgba(198, 255, 92, 0.28);
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.35);
}
.signal-hero .frame {
  padding: 10px;
  background: #0d1018;
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.signal-hero img {
  width: 100%;
  max-width: 220px;
  margin: 0 auto;
  height: auto;
  max-height: 460px;
  object-fit: contain;
}
.signal-hero figcaption {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  font-weight: 800;
}
.signal-hero figcaption b {
  display: inline-grid;
  place-items: center;
  min-width: 52px;
  height: 28px;
  padding: 0 8px;
  background: var(--lime);
  color: var(--ink);
  font-size: 12px;
}
.signal-rail {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  position: relative;
}
.signal-rail::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 18px;
  bottom: 18px;
  width: 2px;
  background: linear-gradient(180deg, var(--lime), rgba(108, 92, 231, 0.2));
}
.signal-rail li {
  display: grid;
  grid-template-columns: 54px 88px 1fr;
  gap: 14px;
  align-items: center;
  padding: 12px 14px;
  background: rgba(28, 34, 50, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 8px 10px 0 rgba(108, 92, 231, 0.16);
  transition: transform 0.22s ease;
}
.signal-rail li:hover { transform: translateX(6px); }
.signal-rail .step {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--lime);
  color: var(--lime);
  font-size: 12px;
  font-weight: 900;
}
.signal-rail .thumb {
  padding: 6px;
  background: #0f131d;
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.signal-rail .thumb img {
  width: 100%;
  height: auto;
  max-height: 140px;
  object-fit: contain;
}
.signal-rail strong { display: block; margin-bottom: 4px; }
.signal-rail p { margin: 0; color: #b7b4cc; font-size: 14px; }

.faq-section { padding: 72px 0; background: #e7e3f8; }
.faq-desk {
  display: grid;
  grid-template-columns: minmax(180px, 240px) 1fr;
  gap: 0;
  min-height: 320px;
  border: 2px solid var(--ink);
  background: #fff;
  box-shadow: 12px 14px 0 rgba(72, 52, 212, 0.16);
  overflow: hidden;
}
.faq-tabs {
  display: grid;
  gap: 0;
  background: #181c2b;
  padding: 10px;
}
.faq-tabs button {
  display: block;
  width: 100%;
  min-height: 48px;
  padding: 10px 14px;
  text-align: left;
  color: #c9c5de;
  font-weight: 800;
  border-left: 3px solid transparent;
}
.faq-tabs button[aria-selected="true"] {
  color: var(--ink);
  background: var(--lime);
  border-left-color: var(--violet);
}
.faq-tabs button:hover { color: #fff; }
.faq-tabs button[aria-selected="true"]:hover { color: var(--ink); }
.faq-pane {
  padding: 28px 30px;
  background:
    radial-gradient(circle at 100% 0%, rgba(198, 255, 92, 0.18), transparent 40%),
    #fff;
}
.faq-answer h3 {
  margin: 0 0 12px;
  font-size: clamp(1.2rem, 2vw, 1.55rem);
}
.faq-answer p {
  margin: 0;
  max-width: 52ch;
  color: var(--mute);
  font-size: 1.02rem;
}

.reviews {
  padding: 72px 0;
  background: linear-gradient(180deg, #15192a 0%, #10131c 100%);
  color: #f3f0ff;
}
.chase-log {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-left: 2px dashed rgba(198, 255, 92, 0.35);
}
.chase-log li {
  display: grid;
  grid-template-columns: 118px 1fr;
  gap: 18px;
  padding: 0 0 22px 22px;
  position: relative;
}
.chase-log li::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(198, 255, 92, 0.18);
}
.chase-log time {
  color: var(--lime);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.04em;
  padding-top: 4px;
}
.chase-log div {
  padding: 14px 16px;
  background: #1c2232;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.22);
}
.chase-log li:nth-child(even) div {
  background: #222a3d;
  border-left: 3px solid var(--violet);
}
.chase-log p { margin: 0 0 10px; color: #d8d6e8; }
.chase-log span { font-size: 13px; font-weight: 800; color: #8c89a3; }

.download-section { padding: 28px 0 72px; background: #ebe8f8; }
.download-podium {
  display: grid;
  justify-items: center;
  gap: 22px;
  padding: 42px 24px 36px;
  text-align: center;
  background:
    radial-gradient(circle at 50% 0%, rgba(198, 255, 92, 0.35), transparent 42%),
    linear-gradient(160deg, #1a1630, #121621 55%, #2a2148);
  border: 2px solid var(--ink);
  box-shadow: 0 18px 0 rgba(72, 52, 212, 0.22);
  color: #f3f0ff;
}
.podium-ring {
  width: 132px;
  height: 132px;
  display: grid;
  place-content: center;
  border-radius: 50%;
  border: 3px dashed var(--lime);
  background: rgba(18, 21, 29, 0.55);
  box-shadow: inset 0 0 0 10px rgba(108, 92, 231, 0.18);
}
.podium-ring span {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--lime);
  letter-spacing: 0.06em;
}
.podium-ring small {
  color: #b7b4cc;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}
.podium-copy .eyebrow { color: var(--lime); }
.podium-copy h2 { margin: 8px 0 8px; color: #fff; }
.podium-copy p { margin: 0 auto 18px; max-width: 42ch; color: #c9c5de; }
.podium-copy .btn-main {
  background: var(--lime);
  color: var(--ink);
}

.site-footer {
  padding: 34px 0 18px;
  background: #090b11;
  color: #dcd8ef;
}
.footer-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: flex-end;
  font-size: 13px;
  font-weight: 800;
}
.footer-nav a:hover { color: var(--lime); }
.copyright {
  width: min(1160px, calc(100% - 40px));
  margin: 14px auto 0;
  color: #7d7a93;
  font-size: 12px;
}

.back-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 60;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  visibility: hidden;
  opacity: 0;
  background: var(--violet);
  box-shadow: var(--nav-shadow);
  transition: opacity 0.2s ease;
}
.back-top::before {
  content: "";
  width: 12px;
  height: 12px;
  border-left: 2px solid #fff;
  border-top: 2px solid #fff;
  transform: translateY(3px) rotate(45deg);
}
.back-top.is-visible { visibility: visible; opacity: 1; }

@media (max-width: 980px) {
  .header-bar { grid-template-columns: 1fr auto; }
  .header-get { display: none; }
  .mobile-actions { display: flex; }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    right: 0; left: 0;
    display: none;
    background: #f3f0ff;
    border-bottom: 1px solid rgba(18, 21, 29, 0.08);
    justify-self: stretch;
  }
  .main-nav.is-open { display: block; }
  .main-nav ul { flex-direction: column; gap: 0; padding: 8px 18px 16px; }
  .main-nav a {
    height: auto;
    padding: 12px 0;
    border-bottom: 1px solid rgba(18, 21, 29, 0.08);
  }
  .main-nav a.is-active::after { display: none; }
  .hero-stage { display: flex; flex-direction: column; gap: 28px; }
  .hero-copy { text-align: center; }
  .hero-description { margin-inline: auto; }
  .hero-cta { justify-content: center; }
  .phone-visual { margin: 0 auto; }
  .float-pill { right: 0; animation: none; }
  .feature-mosaic, .signal-deck, .faq-desk, .chase-log li, .footer-row {
    grid-template-columns: 1fr;
  }
  .feat.big, .feat.wide { grid-column: auto; grid-row: auto; }
  .feat.offset { transform: none; }
  .signal-rail::before { display: none; }
  .signal-rail li { grid-template-columns: 44px 72px 1fr; }
  .signal-rail li:hover { transform: none; }
  .faq-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chase-log { border-left: 0; }
  .chase-log li { padding-left: 0; }
  .chase-log li::before { display: none; }
  .btn-main { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .float-pill, .meter-bars i, .feat-visual span { animation: none; }
}