:root {
  --pink: #f5c6d8;
  --pink-soft: #fce8f0;
  --pink-deep: #e8a4bc;
  --mint: #b8e8d8;
  --mint-soft: #dff5ec;
  --mint-deep: #8fd4bc;
  --lavender: #d4c4f0;
  --lavender-soft: #ede6fa;
  --lavender-deep: #b8a0e0;
  --cream: #faf6f2;
  --ink: #3d3548;
  --ink-soft: #6b5f7a;
  --sketch: #7a6b8a;
  --radius-organic: 2.2rem 1.4rem 2.6rem 1.8rem;
  --radius-organic-alt: 1.6rem 2.4rem 1.8rem 2.2rem;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-sketch: "Caveat", "Ma Shan Zheng", cursive;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.82;
  font-size: 16px;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Watercolor background wash */
.wc-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: linear-gradient(145deg, #fff8fb 0%, var(--cream) 35%, #f4faf7 70%, #f8f4fc 100%);
  overflow: hidden;
}
.wc-blob {
  position: absolute;
  border-radius: 50% 40% 55% 45%;
  filter: blur(60px);
  opacity: 0.55;
  pointer-events: none;
  animation: wc-float 20s ease-in-out infinite alternate;
}
.wc-blob-pink {
  width: 55vw; height: 55vw; max-width: 700px; max-height: 700px;
  top: -12%; left: -8%;
  background: radial-gradient(circle, var(--pink) 0%, transparent 68%);
}
.wc-blob-mint {
  width: 48vw; height: 48vw; max-width: 620px; max-height: 620px;
  bottom: -10%; right: -6%;
  background: radial-gradient(circle, var(--mint) 0%, transparent 65%);
  animation-delay: -8s;
}
.wc-blob-lavender {
  width: 42vw; height: 42vw; max-width: 540px; max-height: 540px;
  top: 38%; left: 42%;
  background: radial-gradient(circle, var(--lavender) 0%, transparent 62%);
  animation-delay: -14s;
}

@keyframes wc-float {
  0% { transform: translate(0, 0) rotate(0deg) scale(1); }
  100% { transform: translate(3%, 5%) rotate(4deg) scale(1.06); }
}

img { max-width: 100%; height: auto; display: block; }
a { color: #8b5a9e; text-decoration: none; transition: color 0.2s; }
a:hover { color: #6b3d82; text-decoration: underline; }

.container { width: min(1120px, 92vw); margin-inline: auto; }

/* Hand-drawn sketch border utility */
.sketch-block {
  position: relative;
  padding: 2rem 2.25rem;
  border-radius: var(--radius-organic);
  box-shadow: 0 4px 24px rgba(122, 107, 138, 0.08);
}
.sketch-block::before {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: inherit;
  padding: 2px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'%3E%3Cpath d='M8 40 Q20 8 60 12 Q100 4 140 16 Q180 8 192 44 Q196 80 188 120 Q192 160 160 188 Q120 196 80 192 Q40 188 12 160 Q4 120 8 80 Q4 60 8 40' fill='none' stroke='%237a6b8a' stroke-width='2.5' stroke-linecap='round' stroke-dasharray='4 3'/%3E%3C/svg%3E") center/100% 100% no-repeat;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.65;
}

.block-pink { background: linear-gradient(135deg, var(--pink-soft) 0%, rgba(252, 232, 240, 0.85) 100%); }
.block-mint { background: linear-gradient(135deg, var(--mint-soft) 0%, rgba(223, 245, 236, 0.88) 100%); border-radius: var(--radius-organic-alt); }
.block-lavender { background: linear-gradient(135deg, var(--lavender-soft) 0%, rgba(237, 230, 250, 0.9) 100%); border-radius: 1.8rem 2.4rem 2rem 2.6rem; }
.block-cream { background: rgba(255, 252, 250, 0.92); border-radius: 2rem 1.6rem 2.4rem 1.8rem; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  padding: 0.7rem 0;
  background: rgba(250, 246, 242, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 2px dashed rgba(122, 107, 138, 0.22);
}
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
}
.brand b {
  color: var(--pink-deep);
  font-family: var(--font-sketch);
  font-size: 1.25rem;
  font-weight: 700;
}
.brand img {
  border-radius: 50% 45% 52% 48%;
  border: 2px dashed var(--lavender-deep);
  box-shadow: 0 4px 14px rgba(184, 160, 224, 0.35);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  padding: 0;
  border: 2px dashed var(--sketch);
  border-radius: 14px 18px 16px 20px;
  background: var(--pink-soft);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 20px; height: 2px;
  margin-inline: auto;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 0.45rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav a {
  color: var(--ink-soft);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 0.42rem 1rem;
  border-radius: 999px;
  border: 1.5px dashed transparent;
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.site-nav a:hover,
.site-nav a.active {
  color: var(--ink);
  background: var(--lavender-soft);
  border-color: var(--lavender-deep);
}

/* Ads */
.ads-top-bar {
  padding: 0.55rem 0;
  background: rgba(255, 252, 250, 0.75);
  border-bottom: 2px dashed rgba(184, 160, 224, 0.3);
}
#ads {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  background: transparent;
  margin: 10px 0;
  gap: 0.5rem;
}
#ads > div,
#ads .ads-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 70px;
  box-sizing: border-box;
}
#ads img {
  width: 65px; height: 65px;
  object-fit: cover;
  border-radius: 18px 22px 20px 24px;
  border: 2px dashed var(--mint-deep);
  box-shadow: 0 4px 14px rgba(143, 212, 188, 0.35);
  transition: transform 180ms ease;
  display: block;
}
#ads a { display: inline-block; text-decoration: none; }
#ads img:hover { transform: translateY(-3px) rotate(-2deg); }
#ads figcaption,
#ads .caption {
  height: 15px;
  font-size: 11px;
  color: var(--ink-soft);
  text-align: center;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-top: 4px;
}
.applist-title {
  text-align: center;
  font-size: 0.86rem;
  color: var(--ink-soft);
  font-family: var(--font-sketch);
  font-size: 1.05rem;
}

/* Hero */
.hero-wc { padding: 3rem 0 2rem; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.25rem;
  align-items: center;
}
.hero-badge {
  display: inline-block;
  padding: 0.3rem 1rem;
  background: var(--mint-soft);
  border: 1.5px dashed var(--mint-deep);
  border-radius: 999px;
  font-family: var(--font-sketch);
  font-size: 1.1rem;
  color: #4a8a72;
  margin-bottom: 0.85rem;
}
.hero-wc h1 {
  font-size: clamp(1.7rem, 4vw, 2.45rem);
  line-height: 1.32;
  margin: 0 0 1rem;
  font-weight: 700;
  color: var(--ink);
}
.hero-wc .lead {
  font-size: 1.02rem;
  color: var(--ink-soft);
  margin: 0;
}
.hero-visual img {
  border-radius: var(--radius-organic-alt);
  border: 2.5px dashed var(--pink-deep);
  box-shadow: 0 12px 36px rgba(232, 164, 188, 0.28);
}

/* Partner strip */
.partner-strip { padding: 1.1rem 0 0.4rem; }
.partner-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
  padding: 1.1rem 1.4rem;
}
.partner-row a {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.25rem;
  background: var(--lavender-soft);
  border: 1.5px dashed var(--lavender-deep);
  border-radius: 999px;
  color: var(--ink);
  font-size: 0.87rem;
  font-weight: 500;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}
.partner-row a:hover {
  transform: translateY(-2px) rotate(-1deg);
  box-shadow: 0 6px 20px rgba(184, 160, 224, 0.35);
  text-decoration: none;
}

/* Anchor pills */
.anchor-pills {
  padding: 0.85rem 0 1.35rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.pill-scroll {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.5rem;
  padding-bottom: 0.3rem;
}
.pill-scroll a {
  flex-shrink: 0;
  padding: 0.45rem 1rem;
  background: var(--pink-soft);
  border: 1.5px dashed var(--pink-deep);
  border-radius: 999px;
  font-size: 0.83rem;
  color: var(--ink-soft);
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}
.pill-scroll a:hover {
  background: var(--mint-soft);
  border-color: var(--mint-deep);
  color: var(--ink);
}

/* Content sections */
.section-stack {
  padding: 0 0 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.65rem;
}
.wc-panel h2 {
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  margin: 0 0 1rem;
  font-weight: 600;
  color: var(--ink);
}
.prose { max-width: 72ch; }
.prose p { margin: 0 0 1rem; color: var(--ink-soft); }
.prose ul, .prose ol { margin: 0 0 1rem; padding-left: 1.35rem; color: var(--ink-soft); }
.prose li { margin-bottom: 0.38rem; }
.prose strong { color: var(--ink); }
.prose h3 { font-size: 1.05rem; color: var(--ink); margin: 1.2rem 0 0.5rem; }

.split-wc {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}
.split-wc.reverse { direction: rtl; }
.split-wc.reverse > * { direction: ltr; }
.split-wc img {
  border-radius: var(--radius-organic);
  border: 2px dashed var(--lavender-deep);
  box-shadow: 0 10px 32px rgba(184, 160, 224, 0.22);
}

/* Card grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.15rem;
  margin-top: 1.35rem;
}
.feature-card {
  overflow: hidden;
  border-radius: var(--radius-organic-alt);
  transition: transform 0.25s;
}
.feature-card:hover { transform: translateY(-4px) rotate(0.5deg); }
.feature-card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-bottom: 2px dashed rgba(122, 107, 138, 0.2);
}
.feature-card .card-body { padding: 1rem 1.15rem 1.25rem; }
.feature-card h3 { margin: 0 0 0.4rem; font-size: 0.98rem; color: var(--ink); }
.feature-card p { margin: 0; font-size: 0.88rem; color: var(--ink-soft); }

/* FAQ */
.faq-list { margin-top: 1.1rem; display: flex; flex-direction: column; gap: 0.65rem; }
.faq-item { padding: 1.15rem 1.35rem; border-radius: 1.4rem 1.8rem 1.6rem 2rem; }
.faq-item h3 { margin: 0 0 0.4rem; font-size: 0.96rem; color: #8b5a9e; }
.faq-item p { margin: 0; font-size: 0.92rem; color: var(--ink-soft); }

/* Related reading */
.related-reading {
  margin-top: 1.75rem;
  padding: 1.5rem 1.65rem;
  border-radius: var(--radius-organic-alt);
}
.related-reading h2 {
  font-size: 1.15rem;
  margin: 0 0 1rem;
  font-family: var(--font-sketch);
  font-size: 1.45rem;
  color: var(--ink);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.75rem;
}
.related-grid a {
  display: block;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.55);
  border: 1.5px dashed var(--sketch);
  border-radius: 1rem 1.4rem 1.2rem 1.6rem;
  font-size: 0.88rem;
  color: var(--ink);
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
}
.related-grid a:hover {
  background: var(--pink-soft);
  transform: translateX(3px);
  text-decoration: none;
}

/* Inner pages */
.page-hero { padding: 2.25rem 0 1.25rem; }
.page-hero-inner { padding: 1.75rem 2rem; }
.page-hero h1 {
  font-size: clamp(1.4rem, 3vw, 1.95rem);
  margin: 0.45rem 0 0;
  font-weight: 600;
  color: var(--ink);
}
.breadcrumb { font-size: 0.85rem; color: var(--ink-soft); }
.breadcrumb a { color: #8b5a9e; }

/* Error pages */
.error-wrap { text-align: center; padding: 3.5rem 0 4.5rem; }
.error-block {
  display: inline-block;
  padding: 2.75rem 3.5rem;
  margin-top: 0.75rem;
}
.error-wrap .code {
  font-family: var(--font-sketch);
  font-size: 5rem;
  font-weight: 700;
  margin: 0;
  line-height: 1;
  color: var(--pink-deep);
}
.error-wrap h1 { margin: 0.5rem 0 1rem; color: var(--ink); }
.error-wrap p { color: var(--ink-soft); }

/* Footer */
.site-footer {
  padding: 2rem 0 2.4rem;
  margin-top: 0.5rem;
  border-top: 2px dashed rgba(122, 107, 138, 0.22);
  background: rgba(250, 246, 242, 0.9);
  font-size: 0.85rem;
  text-align: center;
  color: var(--ink-soft);
}
.site-footer a { color: #8b5a9e; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.85rem 1.35rem;
  margin-bottom: 0.85rem;
}
.footer-links a { text-decoration: none; }

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: rgba(250, 246, 242, 0.96);
    backdrop-filter: blur(14px);
    border-bottom: 2px dashed rgba(122, 107, 138, 0.22);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s;
  }
  .site-nav.is-open { max-height: 320px; }
  .site-nav ul { flex-direction: column; padding: 1rem 1.2rem 1.2rem; }
  .hero-inner,
  .split-wc { grid-template-columns: 1fr; }
  .split-wc.reverse { direction: ltr; }
  .sketch-block { padding: 1.55rem 1.4rem; }
  .header-row { position: relative; }
  .ads-top-bar .container { width: 100%; padding-inline: 0.75rem; }
  #ads { flex-wrap: nowrap; overflow-x: auto; justify-content: flex-start; -webkit-overflow-scrolling: touch; padding-bottom: 0.25rem; }
}