:root {
  --pk-rose: #ff5d8f;
  --pk-rose-deep: #e8346a;
  --pk-teal: #12b5a8;
  --pk-teal-soft: #d8f7f3;
  --pk-ink: #1e2430;
  --pk-muted: #5c6575;
  --pk-paper: #fff7fa;
  --pk-mist: #eefcfa;
  --pk-line: rgba(30, 36, 48, 0.08);
  --pk-glass: rgba(255, 255, 255, 0.62);
  --pk-shadow: 0 18px 40px rgba(232, 52, 106, 0.12);
  --pk-radius: 22px;
  --pk-max: 1120px;
  --pk-font-display: "ZCOOL KuaiLe", "Ma Shan Zheng", cursive;
  --pk-font-head: "ZCOOL XiaoWei", "Noto Serif SC", serif;
  --pk-font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--pk-ink);
  font-family: var(--pk-font-body);
  font-size: 16px;
  line-height: 1.85;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(255, 93, 143, 0.22), transparent 55%),
    radial-gradient(ellipse 70% 45% at 95% 5%, rgba(18, 181, 168, 0.18), transparent 50%),
    linear-gradient(180deg, var(--pk-paper) 0%, #ffffff 38%, var(--pk-mist) 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: var(--pk-rose-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--pk-teal);
}

.pk-wrap {
  width: min(100% - 32px, var(--pk-max));
  margin-inline: auto;
}

/* Promo top */
.pk-promo {
  background: linear-gradient(90deg, rgba(255, 93, 143, 0.1), rgba(18, 181, 168, 0.1));
  border-bottom: 1px solid var(--pk-line);
  padding: 12px 0 8px;
}

.pk-promo-ads,
.pk-sticky-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 12px;
}

.pk-ad-unit {
  width: 70px;
  text-align: center;
}

.pk-ad-unit img {
  width: 65px;
  height: 65px;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 6px 18px rgba(24, 24, 24, 0.12);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  margin-inline: auto;
}

.pk-ad-unit a:hover img {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 10px 24px rgba(24, 24, 24, 0.18);
}

.pk-ad-cap {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  color: #666;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Sticky download rail */
.pk-sticky-dl {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  z-index: 70;
  transform: translateY(calc(-100% - 64px));
  transition: transform 0.28s ease;
  background: var(--pk-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--pk-line);
  padding: 8px 8px 6px;
  box-shadow: 0 8px 24px rgba(30, 36, 48, 0.08);
}

.pk-sticky-dl.is-show {
  transform: translateY(0);
}

.pk-sticky-inner .pk-ad-unit {
  width: calc(25% - 10px);
  max-width: 70px;
}

@media (min-width: 900px) {
  .pk-sticky-inner .pk-ad-unit {
    width: calc(12.5% - 10px);
  }
}

body.pk-has-sticky {
  padding-top: 0;
}

/* Header */
.pk-topbar {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(255, 247, 250, 0.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--pk-line);
}

.pk-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 16px;
}

.pk-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--pk-ink);
}

.pk-brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 4px 12px rgba(255, 93, 143, 0.35);
}

.pk-brand-name {
  font-family: var(--pk-font-display);
  font-size: 1.45rem;
  letter-spacing: 0.04em;
  background: linear-gradient(120deg, var(--pk-rose-deep), var(--pk-teal));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.pk-nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.pk-nav-links a {
  text-decoration: none;
  color: var(--pk-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.pk-nav-links a:hover,
.pk-nav-links a.is-current {
  color: var(--pk-rose-deep);
}

.pk-nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--pk-line);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.pk-nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--pk-ink);
  border-radius: 2px;
  transition: 0.2s ease;
}

@media (max-width: 860px) {
  .pk-nav-toggle {
    display: flex;
  }

  .pk-nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.96);
    padding: 16px 20px 20px;
    border-bottom: 1px solid var(--pk-line);
    gap: 14px;
  }

  .pk-nav-links.is-open {
    display: flex;
  }
}

/* Hero */
.pk-hero {
  position: relative;
  padding: 48px 0 36px;
  overflow: hidden;
}

.pk-hero::before {
  content: "";
  position: absolute;
  inset: 8% -20% auto auto;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(255, 93, 143, 0.28), transparent 68%);
  animation: pk-float 7s ease-in-out infinite;
  pointer-events: none;
}

.pk-hero::after {
  content: "";
  position: absolute;
  inset: auto auto 0 -10%;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(18, 181, 168, 0.22), transparent 70%);
  animation: pk-float 9s ease-in-out infinite reverse;
  pointer-events: none;
}

@keyframes pk-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-18px);
  }
}

.pk-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
  align-items: center;
}

@media (min-width: 900px) {
  .pk-hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
  }
}

.pk-hero-brand {
  font-family: var(--pk-font-display);
  font-size: clamp(2.8rem, 9vw, 4.6rem);
  line-height: 1.05;
  margin: 0 0 10px;
  letter-spacing: 0.06em;
  background: linear-gradient(135deg, var(--pk-rose-deep) 10%, #ff8fb5 45%, var(--pk-teal) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: pk-rise 0.9s ease both;
}

.pk-hero h1 {
  font-family: var(--pk-font-head);
  font-size: clamp(1.35rem, 3.6vw, 1.85rem);
  font-weight: 600;
  line-height: 1.45;
  margin: 0 0 14px;
  color: var(--pk-ink);
  animation: pk-rise 1s ease 0.08s both;
}

.pk-hero-lead {
  margin: 0;
  color: var(--pk-muted);
  font-size: 1.02rem;
  max-width: 36em;
  animation: pk-rise 1.05s ease 0.16s both;
}

.pk-hero-visual {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: var(--pk-shadow);
  animation: pk-rise 1.1s ease 0.2s both;
}

.pk-hero-visual img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: top center;
}

.pk-hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(30, 36, 48, 0.35));
  pointer-events: none;
}

@keyframes pk-rise {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Breadcrumb */
.pk-crumb {
  padding: 18px 0 0;
  font-size: 0.88rem;
  color: var(--pk-muted);
}

.pk-crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.pk-crumb li:not(:last-child)::after {
  content: "/";
  margin-left: 6px;
  color: #9aa3b2;
}

.pk-crumb a {
  text-decoration: none;
  color: var(--pk-muted);
}

.pk-crumb a:hover {
  color: var(--pk-rose-deep);
}

/* Sections */
.pk-section {
  padding: 42px 0;
}

.pk-section + .pk-section {
  border-top: 1px dashed rgba(255, 93, 143, 0.18);
}

.pk-kicker {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pk-teal);
  margin-bottom: 8px;
  font-weight: 700;
}

.pk-section h2 {
  font-family: var(--pk-font-head);
  font-size: clamp(1.45rem, 3vw, 1.9rem);
  margin: 0 0 14px;
  line-height: 1.35;
}

.pk-section h3 {
  font-family: var(--pk-font-head);
  font-size: 1.18rem;
  margin: 22px 0 10px;
  color: var(--pk-ink);
}

.pk-section p {
  margin: 0 0 1em;
  color: #3a4252;
}

.pk-section p:last-child {
  margin-bottom: 0;
}

/* Split media */
.pk-split {
  display: grid;
  gap: 24px;
  align-items: center;
}

@media (min-width: 880px) {
  .pk-split {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .pk-split.is-flip .pk-split-media {
    order: 2;
  }
}

.pk-split-media {
  border-radius: var(--pk-radius);
  overflow: hidden;
  box-shadow: var(--pk-shadow);
  background: #fff;
  position: relative;
}

.pk-split-media img {
  width: 100%;
  aspect-ratio: 9 / 16;
  max-height: 520px;
  object-fit: cover;
  object-position: top;
  margin-inline: auto;
}

.pk-glass-note {
  background: var(--pk-glass);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 18px;
  padding: 18px 20px;
  box-shadow: 0 10px 30px rgba(18, 181, 168, 0.08);
}

/* Mosaic cards */
.pk-mosaic {
  display: grid;
  gap: 16px;
}

@media (min-width: 720px) {
  .pk-mosaic {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 980px) {
  .pk-mosaic {
    grid-template-columns: repeat(3, 1fr);
  }
}

.pk-tile {
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--pk-line);
  box-shadow: 0 12px 28px rgba(30, 36, 48, 0.05);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.pk-tile:hover {
  transform: translateY(-6px);
  box-shadow: var(--pk-shadow);
}

.pk-tile img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top;
}

.pk-tile-body {
  padding: 16px 18px 20px;
}

.pk-tile-body h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.pk-tile-body p {
  margin: 0;
  font-size: 0.94rem;
  color: var(--pk-muted);
}

/* Ribbon band */
.pk-ribbon {
  margin: 10px 0;
  padding: 28px 22px;
  border-radius: 24px;
  background:
    linear-gradient(135deg, rgba(255, 93, 143, 0.12), rgba(18, 181, 168, 0.14)),
    #fff;
  border: 1px solid rgba(255, 93, 143, 0.15);
  position: relative;
  overflow: hidden;
}

.pk-ribbon::before {
  content: "";
  position: absolute;
  width: 160px;
  height: 160px;
  right: -40px;
  top: -40px;
  background: radial-gradient(circle, rgba(255, 93, 143, 0.25), transparent 70%);
  animation: pk-float 6s ease-in-out infinite;
}

/* Timeline */
.pk-timeline {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.pk-step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 14px;
  align-items: start;
}

.pk-step-num {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-family: var(--pk-font-display);
  font-size: 1.2rem;
  color: #fff;
  background: linear-gradient(145deg, var(--pk-rose), var(--pk-teal));
  box-shadow: 0 8px 18px rgba(255, 93, 143, 0.28);
}

/* Gallery strip */
.pk-strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(160px, 220px);
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 10px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.pk-strip figure {
  margin: 0;
  scroll-snap-align: start;
  border-radius: 18px;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--pk-line);
}

.pk-strip img {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: top;
}

.pk-strip figcaption {
  padding: 10px 12px;
  font-size: 0.85rem;
  color: var(--pk-muted);
}

/* Legal / prose */
.pk-prose {
  max-width: 780px;
}

.pk-prose ul {
  padding-left: 1.2em;
  color: #3a4252;
}

.pk-prose li {
  margin-bottom: 0.55em;
}

.pk-page-head {
  padding: 28px 0 8px;
}

.pk-page-head h1 {
  font-family: var(--pk-font-head);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  margin: 8px 0 10px;
}

.pk-page-head p {
  margin: 0;
  color: var(--pk-muted);
  max-width: 40em;
}

/* Error pages */
.pk-error {
  min-height: 58vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 48px 0;
}

.pk-error-code {
  font-family: var(--pk-font-display);
  font-size: clamp(4rem, 16vw, 7rem);
  line-height: 1;
  background: linear-gradient(135deg, var(--pk-rose), var(--pk-teal));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin: 0;
}

.pk-error h1 {
  font-family: var(--pk-font-head);
  margin: 8px 0 12px;
}

.pk-btn-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 18px;
  padding: 12px 22px;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--pk-rose), var(--pk-rose-deep));
  color: #fff !important;
  text-decoration: none;
  font-weight: 600;
  box-shadow: 0 10px 24px rgba(232, 52, 106, 0.28);
  transition: transform 0.2s ease;
}

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

/* Footer */
.pk-footer {
  margin-top: 40px;
  padding: 36px 0 100px;
  background: linear-gradient(180deg, transparent, rgba(30, 36, 48, 0.04));
  border-top: 1px solid var(--pk-line);
}

.pk-footer-grid {
  display: grid;
  gap: 24px;
}

@media (min-width: 800px) {
  .pk-footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

.pk-footer h2 {
  font-family: var(--pk-font-head);
  font-size: 1.05rem;
  margin: 0 0 12px;
}

.pk-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pk-footer li {
  margin-bottom: 8px;
}

.pk-footer a {
  text-decoration: none;
  color: var(--pk-muted);
}

.pk-footer a:hover {
  color: var(--pk-rose-deep);
}

.pk-copy {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--pk-line);
  font-size: 0.88rem;
  color: #8a93a3;
  text-align: center;
}

/* Utility */
.pk-muted {
  color: var(--pk-muted);
}

.pk-highlight {
  color: var(--pk-rose-deep);
  font-weight: 600;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}