:root {
  --bg: #0b1020;
  --bg-soft: #111731;
  --panel: rgba(17, 22, 44, 0.78);
  --panel-strong: rgba(12, 16, 31, 0.92);
  --line: rgba(255, 255, 255, 0.12);
  --text: #f7f4ff;
  --muted: #b9bfdc;
  --pink: #ff6b8b;
  --orange: #ffb15d;
  --violet: #8a6cff;
  --aqua: #66d9ff;
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.34);
  --radius-xl: 30px;
  --radius-lg: 24px;
  --radius-md: 18px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 107, 139, 0.18), transparent 26%),
    radial-gradient(circle at top right, rgba(138, 108, 255, 0.16), transparent 24%),
    radial-gradient(circle at 50% 20%, rgba(102, 217, 255, 0.08), transparent 30%),
    linear-gradient(180deg, #0b1020 0%, #0e1430 100%);
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 22px 22px, 44px 44px;
  background-position: 0 0, 11px 11px;
  opacity: 0.18;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.75), transparent 92%);
}

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

a {
  color: inherit;
}

.site-shell {
  position: relative;
  z-index: 1;
}

.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(9, 12, 26, 0.72);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex: 0 0 auto;
}

.brand img {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.28);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-name {
  font-size: 1.06rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.brand-sub {
  color: var(--muted);
  font-size: 0.82rem;
}

.nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav a {
  padding: 10px 14px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--muted);
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.nav a:hover,
.nav a.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.header-cta {
  margin-left: 6px;
}

.menu-toggle {
  display: none;
  margin-left: auto;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.hero,
.section,
.page-body {
  position: relative;
}

.hero {
  padding: 34px 0 18px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 28px;
  align-items: center;
}

.kicker,
.sub-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.86rem;
  color: #fff5ff;
  background: linear-gradient(135deg, rgba(255, 107, 139, 0.2), rgba(255, 177, 93, 0.18));
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 14px 36px rgba(255, 107, 139, 0.09);
}

.hero h1,
.page-hero h1 {
  margin: 16px 0 14px;
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  line-height: 0.92;
  letter-spacing: -0.05em;
}

.hero h1 {
  max-width: 10ch;
}

.page-hero h1 {
  max-width: 14ch;
}

.hero-lead,
.page-lead,
.section-copy {
  color: var(--muted);
  line-height: 1.9;
}

.hero-lead {
  max-width: 58ch;
  font-size: 1.04rem;
}

.cta-row,
.mini-links,
.chip-row,
.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.cta-row {
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.02em;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #1a1020;
  background: linear-gradient(135deg, var(--pink), var(--orange));
  box-shadow: 0 16px 32px rgba(255, 107, 139, 0.28);
}

.btn-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--line);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
}

.hero-notes {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.note {
  padding: 16px 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  min-height: 96px;
}

.note strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.02rem;
}

.note span {
  color: var(--muted);
  font-size: 0.92rem;
}

.visual-stack {
  position: relative;
  min-height: 640px;
}

.float-card {
  position: absolute;
  overflow: hidden;
  border-radius: 30px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.float-card img {
  width: 100%;
  max-width: 400px;
  height: auto;
}

.float-main {
  top: 0;
  right: 0;
  width: min(100%, 392px);
}

.float-left {
  left: 0;
  bottom: 36px;
  width: 250px;
}

.float-top {
  top: 112px;
  left: 26px;
  width: 228px;
}

.float-label {
  position: absolute;
  left: 16px;
  bottom: 16px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(8, 10, 18, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
}

.section {
  padding: 28px 0;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.section-title {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.section-copy {
  max-width: 66ch;
  margin: 8px 0 0;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.panel-inner {
  padding: 22px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.grid-aside {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 18px;
  align-items: start;
}

.feature {
  position: relative;
  overflow: hidden;
}

.feature::after {
  content: "";
  position: absolute;
  inset: auto -24px -24px auto;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 177, 93, 0.25), transparent 70%);
}

.feature h3,
.review h3,
.step h3,
.faq-item summary {
  margin: 0 0 10px;
  font-size: 1.08rem;
}

.feature p,
.review p,
.step p,
.faq-item p,
.aside-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 0.92rem;
}

.shot-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.shot {
  overflow: hidden;
}

.shot figure {
  margin: 0;
}

.shot img {
  width: 100%;
  max-width: 400px;
  height: auto;
  margin: 0 auto;
}

.shot figcaption {
  padding: 14px 16px 16px;
  color: var(--muted);
  font-size: 0.92rem;
}

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

.step {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 18px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
}

.step-num {
  width: 72px;
  height: 72px;
  border-radius: 22px;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 1.18rem;
  color: #fff7fb;
  background: linear-gradient(135deg, rgba(255, 107, 139, 0.96), rgba(138, 108, 255, 0.92));
  box-shadow: 0 14px 28px rgba(138, 108, 255, 0.24);
}

.step ul {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.step li + li {
  margin-top: 6px;
}

.callout {
  padding: 18px 20px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(255, 107, 139, 0.12), rgba(255, 177, 93, 0.1));
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.callout strong {
  display: block;
  margin-bottom: 8px;
}

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

.faq-item {
  padding: 18px 20px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  outline: none;
}

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

.faq-item .answer {
  margin-top: 12px;
}

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

.quote blockquote {
  margin: 0;
  padding-left: 18px;
  border-left: 3px solid rgba(255, 177, 93, 0.6);
  color: var(--text);
  line-height: 1.8;
}

.quote cite {
  color: var(--muted);
  font-style: normal;
}

.subpage-hero {
  padding: 30px 0 12px;
}

.page-hero {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 18px;
  align-items: stretch;
}

.page-banner {
  padding: 26px;
  border-radius: 32px;
  background:
    radial-gradient(circle at top right, rgba(255, 177, 93, 0.16), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.page-banner .meta-row {
  margin-top: 18px;
}

.aside-card {
  padding: 22px;
}

.aside-card ul {
  margin: 14px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

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

.footer {
  margin-top: 24px;
  padding: 26px 0 36px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer-inner {
  display: grid;
  gap: 14px;
}

.footer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.disclaimer {
  font-size: 0.92rem;
  line-height: 1.8;
}

.copyright {
  font-size: 0.9rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

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

  .visual-stack {
    min-height: 560px;
  }

  .hero-notes,
  .grid-3,
  .shot-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .container {
    width: min(100% - 20px, 1180px);
  }

  .header-inner {
    min-height: 72px;
  }

  .nav {
    position: absolute;
    top: 100%;
    left: 10px;
    right: 10px;
    display: grid;
    gap: 8px;
    padding: 12px;
    border-radius: 22px;
    background: rgba(9, 12, 26, 0.96);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

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

  .nav a,
  .header-cta {
    width: 100%;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .header-cta {
    margin-left: 0;
  }

  .hero {
    padding-top: 18px;
  }

  .hero-notes,
  .grid-3,
  .grid-2,
  .shot-grid {
    grid-template-columns: 1fr;
  }

  .hero h1,
  .page-hero h1 {
    max-width: none;
  }

  .visual-stack {
    min-height: 480px;
  }

  .float-main {
    width: min(100%, 330px);
  }

  .float-left {
    width: 205px;
  }

  .float-top {
    width: 188px;
    left: 12px;
    top: 122px;
  }

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

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

  .step-num {
    width: 58px;
    height: 58px;
  }
}