:root {
  --bg: #fff7f4;
  --bg-2: #fff0e8;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-strong: #ffffff;
  --text: #1d1b28;
  --muted: #655d74;
  --line: rgba(29, 27, 40, 0.12);
  --primary: #f15b8a;
  --primary-dark: #d63e71;
  --secondary: #1d2b64;
  --accent: #ff8f4b;
  --accent-soft: #ffe3cf;
  --shadow: 0 22px 60px rgba(71, 31, 50, 0.12);
  --shadow-soft: 0 12px 30px rgba(71, 31, 50, 0.09);
  --radius-xl: 30px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --container: 1180px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 10%, rgba(241, 91, 138, 0.14), transparent 26%),
    radial-gradient(circle at 88% 12%, rgba(255, 143, 75, 0.16), transparent 24%),
    radial-gradient(circle at 82% 84%, rgba(29, 43, 100, 0.1), transparent 28%),
    linear-gradient(180deg, var(--bg) 0%, #fff 42%, var(--bg-2) 100%);
  min-height: 100vh;
}

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

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

p {
  line-height: 1.8;
  margin: 0 0 1em;
}

h1,
h2,
h3 {
  margin: 0 0 0.65em;
  line-height: 1.18;
}

h1 {
  font-size: clamp(2.15rem, 4.5vw, 4.5rem);
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.45rem, 2.2vw, 2.1rem);
}

h3 {
  font-size: 1.1rem;
}

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

.site-shell::before,
.site-shell::after {
  content: "";
  position: fixed;
  inset: auto;
  width: 24rem;
  height: 24rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(241, 91, 138, 0.08) 0%, rgba(241, 91, 138, 0) 68%);
  pointer-events: none;
  z-index: 0;
}

.site-shell::before {
  top: 4rem;
  left: -7rem;
}

.site-shell::after {
  bottom: -5rem;
  right: -6rem;
  background: radial-gradient(circle, rgba(29, 43, 100, 0.08) 0%, rgba(29, 43, 100, 0) 68%);
}

.page-accent-blue {
  background:
    radial-gradient(circle at 10% 8%, rgba(29, 43, 100, 0.16), transparent 24%),
    radial-gradient(circle at 94% 16%, rgba(255, 143, 75, 0.14), transparent 22%),
    linear-gradient(180deg, #f7f9ff 0%, #ffffff 46%, #eef2ff 100%);
}

.page-accent-warm {
  background:
    radial-gradient(circle at 10% 8%, rgba(255, 143, 75, 0.16), transparent 24%),
    radial-gradient(circle at 94% 16%, rgba(241, 91, 138, 0.14), transparent 22%),
    linear-gradient(180deg, #fffaf5 0%, #fff 44%, #fff1e7 100%);
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.section-pad {
  padding: clamp(2.5rem, 5vw, 5rem) 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(255, 255, 255, 0.74);
  border-bottom: 1px solid rgba(29, 27, 40, 0.07);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-logo {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  object-fit: cover;
  box-shadow: var(--shadow-soft);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
}

.brand-text strong {
  font-size: 1rem;
  letter-spacing: 0.04em;
}

.brand-text em {
  font-style: normal;
  font-size: 0.86rem;
  color: var(--muted);
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.nav-link {
  padding: 0.78rem 1.05rem;
  border-radius: 999px;
  color: var(--muted);
  border: 1px solid transparent;
  transition: 0.25s ease;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--text);
  border-color: rgba(29, 27, 40, 0.08);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-soft);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  align-items: center;
  gap: 2rem;
}

.hero-copy,
.hero-panel,
.article-card {
  position: relative;
}

.hero-copy::before {
  content: "";
  position: absolute;
  left: -1rem;
  top: -1.1rem;
  width: 6rem;
  height: 6rem;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(241, 91, 138, 0.14), rgba(255, 143, 75, 0.08));
  transform: rotate(-12deg);
  z-index: -1;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary-dark);
  font-weight: 700;
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 56ch;
}

.hero-actions,
.cta-inline {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.hero-actions {
  margin: 1.5rem 0 1.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

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

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary) 0%, #ff7a5e 100%);
  box-shadow: 0 16px 28px rgba(241, 91, 138, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 18px 32px rgba(241, 91, 138, 0.34);
}

.btn-ghost {
  color: var(--secondary);
  background: rgba(255, 255, 255, 0.84);
  border-color: rgba(29, 43, 100, 0.12);
}

.btn-wide {
  width: 100%;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.hero-tags span,
.panel-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(29, 27, 40, 0.08);
  color: var(--muted);
}

.hero-panel {
  padding: 1rem;
  border-radius: calc(var(--radius-xl) + 6px);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(255, 248, 245, 0.88)),
    linear-gradient(135deg, rgba(241, 91, 138, 0.08), rgba(29, 43, 100, 0.08));
  box-shadow: var(--shadow);
  border: 1px solid rgba(29, 27, 40, 0.08);
}

.panel-card,
.stat-card,
.step-card,
.feature-card,
.shot-card,
.quote-card,
.faq-snippet,
.article-card,
.callout-box {
  background: var(--surface);
  border: 1px solid rgba(29, 27, 40, 0.08);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.download-card {
  padding: 1.4rem;
}

.download-card h2 {
  margin-top: 0.9rem;
}

.download-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  margin: 1.35rem 0 1.2rem;
}

.download-meta div {
  padding: 0.95rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(29, 27, 40, 0.08);
}

.download-meta strong,
.stat-card strong,
.step-no,
.faq-snippet h3,
.quote-card cite {
  display: block;
  font-weight: 700;
}

.download-meta span,
.stat-card span,
.footer-note,
.text-link,
.faq-snippet p,
.quote-card p,
.step-card p,
.feature-card p {
  color: var(--muted);
}

.stats-strip {
  padding-top: 0;
}

.stats-grid,
.step-grid,
.feature-grid,
.quote-grid,
.faq-snippets,
.shot-grid,
.article-columns {
  display: grid;
  gap: 1rem;
}

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

.stat-card {
  padding: 1.2rem;
}

.stat-card strong {
  font-size: 1.08rem;
  margin-bottom: 0.35rem;
}

.section-head {
  margin-bottom: 1.3rem;
}

.split-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
}

.text-link {
  font-weight: 700;
}

.text-link:hover {
  color: var(--primary-dark);
}

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

.step-card,
.feature-card,
.faq-snippet,
.quote-card {
  padding: 1.25rem;
}

.step-no {
  font-size: 0.84rem;
  letter-spacing: 0.18em;
  color: var(--primary-dark);
  margin-bottom: 0.5rem;
}

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

.feature-card {
  min-height: 100%;
}

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

.shot-card {
  overflow: hidden;
}

.shot-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: #f7f2ee;
}

.shot-card figcaption {
  padding: 0.9rem 1rem 1rem;
  color: var(--muted);
}

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

.quote-card {
  position: relative;
}

.quote-card::before {
  content: "“";
  position: absolute;
  top: -0.3rem;
  left: 1rem;
  font-size: 4rem;
  line-height: 1;
  color: rgba(241, 91, 138, 0.14);
}

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

.faq-preview,
.cta-band {
  position: relative;
}

.faq-preview::before,
.cta-band::before {
  content: "";
  position: absolute;
  inset: 1.5rem auto auto 2rem;
  width: 7rem;
  height: 7rem;
  border-radius: 50%;
  border: 14px solid rgba(255, 143, 75, 0.07);
  pointer-events: none;
}

.cta-band {
  padding-top: 0;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem;
  border-radius: calc(var(--radius-xl) + 4px);
  background:
    linear-gradient(135deg, rgba(241, 91, 138, 0.12), rgba(255, 143, 75, 0.16)),
    rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(29, 27, 40, 0.08);
  box-shadow: var(--shadow);
}

.article-page {
  padding-top: clamp(2rem, 4vw, 4rem);
}

.article-wrap {
  width: min(calc(100% - 1rem), 920px);
}

.article-wrap.narrow {
  width: min(calc(100% - 1rem), 880px);
}

.article-card {
  padding: clamp(1.2rem, 3vw, 2.2rem);
}

.guide-steps {
  display: grid;
  gap: 1rem;
  margin: 1.5rem 0;
}

.guide-step {
  padding: 1.2rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(29, 27, 40, 0.08);
}

.callout-box {
  padding: 1.2rem;
  margin: 1.2rem 0 1.5rem;
}

.check-list {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--muted);
  line-height: 1.85;
}

.article-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1.25rem;
}

.faq-list {
  display: grid;
  gap: 0.8rem;
  margin-top: 1.3rem;
}

.faq-list details {
  border-radius: var(--radius-md);
  border: 1px solid rgba(29, 27, 40, 0.1);
  background: rgba(255, 255, 255, 0.9);
  overflow: hidden;
}

.faq-list summary {
  list-style: none;
  cursor: pointer;
  padding: 1rem 1.1rem;
  font-weight: 700;
}

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

.faq-list details p {
  padding: 0 1.1rem 1rem;
  color: var(--muted);
}

.feature-essay,
.extra-notes {
  margin-top: 1.25rem;
  padding: 1.2rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(29, 27, 40, 0.08);
}

.cta-inline {
  margin-top: 1.25rem;
  padding: 1.2rem;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(241, 91, 138, 0.09), rgba(255, 143, 75, 0.12));
  border: 1px solid rgba(29, 27, 40, 0.08);
  justify-content: space-between;
}

.site-footer {
  position: relative;
  z-index: 1;
  padding: 2rem 0 1.4rem;
  border-top: 1px solid rgba(29, 27, 40, 0.08);
  background: rgba(255, 255, 255, 0.66);
  backdrop-filter: blur(12px);
}

.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.4rem;
  flex-wrap: wrap;
}

.footer-note {
  max-width: 50ch;
}

.footer-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--secondary);
  font-weight: 700;
}

.footer-links a:hover {
  color: var(--primary-dark);
}

.disclaimer {
  width: min(calc(100% - 2rem), var(--container));
  margin: 1rem auto 0;
  padding-top: 0.9rem;
  color: var(--muted);
  font-size: 0.92rem;
  border-top: 1px dashed rgba(29, 27, 40, 0.18);
}

@media (max-width: 1080px) {
  .hero-grid,
  .stats-grid,
  .feature-grid,
  .shot-grid,
  .quote-grid,
  .faq-snippets,
  .step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (max-width: 760px) {
  .header-row,
  .split-head,
  .cta-inner,
  .footer-grid {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    width: 100%;
  }

  .nav-link {
    padding: 0.7rem 0.95rem;
  }

  .hero-grid,
  .stats-grid,
  .feature-grid,
  .shot-grid,
  .quote-grid,
  .faq-snippets,
  .step-grid,
  .download-meta {
    grid-template-columns: 1fr;
  }

  .hero-actions,
  .cta-inline {
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .btn-ghost {
    order: 2;
  }

  .cta-inline .btn {
    width: 100%;
  }

  .brand-logo {
    width: 46px;
    height: 46px;
  }
}