:root {
  --bg: #0f1021;
  --bg-soft: #17183a;
  --panel: rgba(18, 20, 44, 0.86);
  --panel-strong: rgba(24, 28, 61, 0.96);
  --text: #f7f2ff;
  --muted: #b9bad8;
  --line: rgba(255, 255, 255, 0.1);
  --primary: #ff6f91;
  --primary-2: #8d6bff;
  --accent: #ffb84d;
  --mint: #5df2c2;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --max: 1180px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 111, 145, 0.18), transparent 26%),
    radial-gradient(circle at 80% 10%, rgba(141, 107, 255, 0.22), transparent 24%),
    radial-gradient(circle at 80% 80%, rgba(93, 242, 194, 0.1), transparent 22%),
    linear-gradient(180deg, #0b0c18 0%, var(--bg) 52%, #0b0d1c 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 0.65), transparent 78%);
  opacity: 0.45;
}

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

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

.site-shell {
  position: relative;
  overflow: hidden;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: rgba(10, 12, 28, 0.76);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.topbar-inner,
.section-inner,
.footer-inner {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 82px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand img {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  box-shadow: 0 12px 26px rgba(255, 111, 145, 0.18);
}

.brand strong {
  display: block;
  font-size: 17px;
  letter-spacing: 0.2px;
}

.brand span {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  color: var(--muted);
}

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

.nav a,
.nav button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  padding: 12px 14px;
  border-radius: 999px;
  transition: 0.2s ease;
}

.nav a:hover,
.nav a[aria-current="page"],
.nav button:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav .cta {
  color: #170f1e;
  background: linear-gradient(135deg, var(--accent), #ffd7a1);
  font-weight: 700;
  box-shadow: 0 12px 28px rgba(255, 184, 77, 0.28);
}

.nav .cta:hover {
  transform: translateY(-1px);
  background: linear-gradient(135deg, #ffd07e, #ffe7c3);
}

.nav-toggle {
  display: none;
}

.hero {
  position: relative;
  padding: 36px 0 20px;
}

.hero-panel {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  padding: 34px;
  background:
    linear-gradient(145deg, rgba(31, 34, 74, 0.92), rgba(16, 18, 39, 0.94)),
    radial-gradient(circle at top right, rgba(255, 111, 145, 0.2), transparent 28%);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.hero-panel::after {
  content: "";
  position: absolute;
  inset: 14px;
  border-radius: 24px;
  border: 1px dashed rgba(255, 255, 255, 0.08);
  pointer-events: none;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #ffe9f0;
  font-size: 13px;
  letter-spacing: 0.4px;
}

.hero h1 {
  margin: 18px 0 14px;
  font-size: clamp(44px, 7vw, 68px);
  line-height: 0.98;
  letter-spacing: -1px;
}

.hero .lead {
  margin: 0;
  max-width: 56ch;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

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

.btn.primary {
  color: #170f1e;
  background: linear-gradient(135deg, #ffd15f, #ff8f6a);
  box-shadow: 0 16px 36px rgba(255, 143, 106, 0.28);
}

.btn.secondary {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
}

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

.metric {
  padding: 18px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.metric strong {
  display: block;
  font-size: 28px;
  line-height: 1;
  margin-bottom: 8px;
}

.metric span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.hero-visual {
  display: grid;
  align-content: end;
  gap: 16px;
}

.hero-card {
  padding: 18px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.035));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-card .mini-title {
  font-size: 13px;
  color: var(--muted);
}

.hero-card .mini-copy {
  margin: 10px 0 0;
  line-height: 1.8;
  color: #fff;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
}

.section {
  padding: 24px 0 8px;
}

.section + .section {
  padding-top: 14px;
}

.section-card {
  padding: 28px;
  border-radius: var(--radius-xl);
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.section-head h2,
.section-head h3 {
  margin: 0;
  font-size: 28px;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  max-width: 54ch;
}

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

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

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

.card {
  padding: 22px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.card h3,
.card h4 {
  margin: 0 0 10px;
  font-size: 18px;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.card .tag {
  display: inline-flex;
  align-items: center;
  margin-bottom: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 111, 145, 0.14);
  color: #ffdbe3;
  font-size: 12px;
  letter-spacing: 0.3px;
}

.showcase {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.shot {
  padding: 16px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
}

.shot img {
  margin: 0 auto;
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: 18px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
}

.shot figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.rich-list {
  display: grid;
  gap: 14px;
}

.rich-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.rich-item strong {
  display: block;
  font-size: 16px;
  margin-bottom: 6px;
}

.rich-item span {
  color: var(--muted);
  line-height: 1.75;
  font-size: 14px;
}

.number {
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  font-weight: 700;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.quote-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.quote {
  padding: 22px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.quote p {
  margin: 0;
  line-height: 1.85;
  color: #fdf7ff;
}

.quote footer {
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
}

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

.faq-item {
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px;
  border: 0;
  background: transparent;
  color: #fff;
  font: inherit;
  text-align: left;
}

.faq-answer {
  padding: 0 20px 18px;
  color: var(--muted);
  line-height: 1.85;
  display: none;
}

.faq-item[data-open="true"] .faq-answer {
  display: block;
}

.faq-item[data-open="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-icon {
  transition: transform 0.2s ease;
  color: var(--accent);
  font-size: 22px;
  line-height: 1;
}

.article {
  color: var(--text);
  line-height: 1.95;
  font-size: 16px;
}

.article p {
  margin: 0 0 18px;
  color: #ebe8f8;
}

.article h2,
.article h3 {
  margin: 28px 0 14px;
  line-height: 1.3;
}

.article ul,
.article ol {
  margin: 0 0 18px 22px;
  color: #ebe8f8;
}

.article li + li {
  margin-top: 8px;
}

.timeline {
  display: grid;
  gap: 14px;
}

.step {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: start;
  padding: 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.step strong {
  display: block;
  margin-bottom: 6px;
  font-size: 17px;
}

.step p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.footer {
  padding: 20px 0 34px;
}

.footer-inner {
  padding: 26px 28px;
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(18, 20, 44, 0.96), rgba(11, 13, 28, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 22px;
  align-items: start;
}

.footer p,
.footer li {
  color: var(--muted);
  line-height: 1.9;
}

.footer ul {
  margin: 12px 0 0 18px;
}

.copyright {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: #9698b9;
  font-size: 13px;
  line-height: 1.8;
}

.small-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.small-links a {
  color: #fff;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.mobile-only {
  display: none;
}

@media (max-width: 1080px) {
  .hero-panel,
  .footer-grid,
  .split {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  .topbar-inner {
    min-height: 72px;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.07);
    color: #fff;
  }

  .nav {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 76px;
    display: grid;
    gap: 8px;
    padding: 12px;
    background: rgba(12, 14, 32, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    box-shadow: var(--shadow);
    transform-origin: top;
    transform: scaleY(0.96);
    opacity: 0;
    pointer-events: none;
  }

  body.nav-open .nav {
    opacity: 1;
    pointer-events: auto;
    transform: scaleY(1);
  }

  .nav a,
  .nav button {
    width: 100%;
    justify-content: center;
  }

  .hero {
    padding-top: 20px;
  }

  .hero-panel,
  .section-card,
  .footer-inner {
    padding: 20px;
    border-radius: 24px;
  }

  .hero h1 {
    font-size: clamp(34px, 13vw, 54px);
  }

  .grid.features,
  .showcase,
  .quote-grid,
  .hero-metrics,
  .grid.duo {
    grid-template-columns: 1fr;
  }

  .section-head {
    flex-direction: column;
    align-items: start;
  }

  .mobile-only {
    display: inline-flex;
  }
}