:root {
  --bg: #070b16;
  --bg-soft: #0d1326;
  --panel: rgba(12, 18, 36, 0.84);
  --panel-strong: rgba(17, 24, 46, 0.96);
  --line: rgba(255, 255, 255, 0.08);
  --text: #f4f7ff;
  --muted: rgba(244, 247, 255, 0.76);
  --accent: #ff6e8e;
  --accent-2: #8b78ff;
  --accent-3: #ffd166;
  --accent-4: #62e3c5;
  --shadow: 0 18px 55px rgba(2, 5, 17, 0.45);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --content-max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 110, 142, 0.18), transparent 26%),
    radial-gradient(circle at 80% 10%, rgba(139, 120, 255, 0.18), transparent 26%),
    radial-gradient(circle at 70% 80%, rgba(255, 209, 102, 0.14), transparent 24%),
    linear-gradient(145deg, #050711 0%, #09101d 42%, #111633 100%);
  font-family: "Trebuchet MS", "Microsoft YaHei UI", "PingFang SC", sans-serif;
  line-height: 1.75;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  pointer-events: none;
  z-index: -1;
}

body::before {
  width: 320px;
  height: 320px;
  left: -120px;
  top: 22vh;
  background: radial-gradient(circle, rgba(98, 227, 197, 0.16), transparent 70%);
  filter: blur(10px);
}

body::after {
  width: 260px;
  height: 260px;
  right: -90px;
  bottom: 8vh;
  background: radial-gradient(circle, rgba(255, 110, 142, 0.15), transparent 68%);
  filter: blur(12px);
}

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

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

.site-shell {
  width: min(calc(100% - 24px), var(--content-max));
  margin: 0 auto;
  padding: 18px 0 36px;
}

.topbar {
  position: sticky;
  top: 14px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 18px;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(10, 14, 28, 0.74);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-logo {
  width: 42px;
  height: 42px;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 10px 24px rgba(255, 110, 142, 0.22);
}

.brand-name {
  font-weight: 800;
  letter-spacing: 0.04em;
  font-size: 1.08rem;
}

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

.nav-link {
  padding: 10px 14px;
  color: var(--muted);
  border-radius: 999px;
  border: 1px solid transparent;
  transition: 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.1);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: 999px;
  padding: 14px 22px;
  font-weight: 800;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  box-shadow: 0 10px 28px rgba(255, 110, 142, 0.14);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-small {
  padding: 10px 16px;
}

.btn-primary {
  color: #1a1020;
  background: linear-gradient(135deg, var(--accent-3), #ff8f6e 58%, var(--accent));
}

.btn-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.btn-ghost {
  color: var(--text);
  background: linear-gradient(135deg, rgba(139, 120, 255, 0.24), rgba(255, 110, 142, 0.2));
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.panel,
.panel-soft,
.feature-card,
.mini-stat,
.quote-card,
.faq-item {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.panel {
  border-radius: var(--radius-xl);
  padding: clamp(20px, 3vw, 34px);
}

.panel-soft {
  border-radius: var(--radius-lg);
}

.hero {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: clamp(24px, 4vw, 42px);
  align-items: center;
  overflow: hidden;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -120px -100px auto;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 209, 102, 0.22), transparent 68%);
  pointer-events: none;
}

.hero-copy h1,
.page-hero h1 {
  margin: 10px 0 14px;
  font-size: clamp(2.1rem, 5vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  color: #ffd1dc;
  border-radius: 999px;
  background: rgba(255, 110, 142, 0.14);
  border: 1px solid rgba(255, 110, 142, 0.18);
  font-size: 0.88rem;
  letter-spacing: 0.05em;
}

.lead {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 58ch;
}

.hero-actions,
.inline-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.hero-points {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.hero-points li {
  position: relative;
  padding-left: 20px;
}

.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-4), var(--accent-2));
}

.hero-visual {
  position: relative;
  min-height: 530px;
  display: grid;
  place-items: center;
}

.phone-frame {
  position: relative;
  width: min(100%, 430px);
  padding: 14px;
  border-radius: 34px;
  background: linear-gradient(180deg, rgba(255,255,255,0.13), rgba(255,255,255,0.04));
  border: 1px solid rgba(255,255,255,0.1);
  transform: rotate(4deg);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.phone-frame::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 36%;
  height: 20px;
  border-radius: 999px;
  background: rgba(7, 11, 22, 0.9);
  z-index: 1;
}

.app-shot {
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.28);
}

.floating-card {
  position: absolute;
  max-width: 210px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(10, 14, 28, 0.92);
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: var(--shadow);
}

.floating-card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1rem;
}

.floating-card span {
  color: var(--muted);
  font-size: 0.95rem;
}

.card-a {
  left: 0;
  bottom: 120px;
}

.card-b {
  right: 10px;
  top: 70px;
}

.section {
  margin-top: 28px;
}

.section-head {
  margin-bottom: 16px;
}

.section-head h2,
.panel h2,
.page-hero h1,
.faq-note h2 {
  margin: 8px 0 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.mini-stat {
  padding: 20px;
  border-radius: 22px;
}

.stat-kicker,
.feature-tag {
  display: inline-block;
  color: var(--accent-3);
  font-weight: 800;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  margin-bottom: 12px;
}

.mini-stat strong,
.feature-card h3 {
  display: block;
  font-size: 1.26rem;
  margin-bottom: 8px;
}

.mini-stat p,
.feature-card p,
.gallery-item figcaption,
.footer p,
.sidebar-box,
.article-body p,
.faq-note p {
  color: var(--muted);
  margin: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.feature-card {
  padding: 22px;
  border-radius: 24px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.gallery-item {
  margin: 0;
  padding: 16px;
  border-radius: 24px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.gallery-img {
  width: 100%;
  max-width: 400px;
  margin: 0 auto 14px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.08);
}

.section-dual {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.text-link {
  display: inline-flex;
  margin-top: 12px;
  color: #ffe58f;
  font-weight: 700;
}

.quote-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.quote-card {
  margin: 0;
  padding: 22px;
  border-radius: 24px;
  font-size: 1rem;
  color: var(--text);
  position: relative;
}

.quote-card::before {
  content: "“";
  position: absolute;
  top: 10px;
  left: 14px;
  font-size: 3.5rem;
  line-height: 1;
  color: rgba(255, 110, 142, 0.28);
}

.cta-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: linear-gradient(135deg, rgba(255, 110, 142, 0.18), rgba(139, 120, 255, 0.16));
}

.footer {
  margin-top: 28px;
  padding: 24px 4px 12px;
}

.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer-brand {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.footer-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.footer-links a {
  color: var(--muted);
}

.disclaimer {
  margin-top: 8px;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255,255,255,0.08);
}

.copyright {
  margin-top: 12px;
  color: rgba(244, 247, 255, 0.56);
}

.page-hero {
  padding: 30px;
  margin-bottom: 18px;
}

.article-layout,
.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(290px, 0.7fr);
  gap: 14px;
  align-items: start;
}

.article-body {
  padding: 28px;
}

.article-body h2 {
  margin-top: 24px;
  margin-bottom: 8px;
  font-size: 1.35rem;
}

.sidebar,
.faq-side {
  padding: 24px;
  position: sticky;
  top: 110px;
}

.check-list {
  margin: 14px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.check-list li + li {
  margin-top: 10px;
}

.sidebar-box {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  padding: 16px;
  border-radius: 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  padding: 0;
  overflow: hidden;
}

.faq-item summary {
  list-style: none;
  padding: 20px 22px;
  font-weight: 800;
  cursor: pointer;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  margin: 0;
  padding: 0 22px 20px;
  color: var(--muted);
}

.faq-note {
  margin-top: 18px;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero,
  .article-layout,
  .faq-layout,
  .section-dual {
    grid-template-columns: 1fr;
  }

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

  .hero-visual {
    min-height: 440px;
  }

  .sidebar,
  .faq-side {
    position: static;
  }
}

@media (max-width: 760px) {
  .site-shell {
    width: min(calc(100% - 14px), var(--content-max));
    padding-top: 10px;
  }

  .topbar {
    position: static;
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav {
    justify-content: center;
  }

  .btn-small {
    width: 100%;
  }

  .stats-grid,
  .feature-grid,
  .gallery-grid,
  .quote-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 390px;
  }

  .phone-frame {
    transform: none;
  }

  .floating-card {
    position: static;
    max-width: none;
    margin-top: 12px;
  }

  .hero-visual {
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }

  .cta-strip,
  .footer-top {
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}