@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;700&family=ZCOOL+XiaoWei&display=swap");

:root {
  --pk-ink: #141824;
  --pk-ink-soft: #3a4258;
  --pk-rose: #ff4b6e;
  --pk-rose-deep: #e03558;
  --pk-teal: #1db8a6;
  --pk-teal-deep: #149687;
  --pk-mist: #eef2f7;
  --pk-sheet: #f7f9fc;
  --pk-line: rgba(20, 24, 36, 0.08);
  --pk-glass: rgba(255, 255, 255, 0.72);
  --pk-shadow: 0 18px 40px rgba(20, 24, 36, 0.08);
  --pk-radius: 22px;
  --pk-max: 1080px;
  --pk-nav-h: 64px;
  --pk-font-display: "ZCOOL XiaoWei", "Noto Sans SC", sans-serif;
  --pk-font-body: "Noto Sans SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--pk-font-body);
  color: var(--pk-ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, #ffe4ea 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #d9fff8 0%, transparent 50%),
    linear-gradient(180deg, #fbfcfe 0%, var(--pk-mist) 48%, #f4f7fb 100%);
  line-height: 1.75;
  min-height: 100vh;
}

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

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

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

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

.pk-skip {
  position: absolute;
  left: -999px;
  top: 0;
}

.pk-skip:focus {
  left: 12px;
  top: 12px;
  z-index: 100;
  background: #fff;
  padding: 8px 12px;
  border-radius: 8px;
}

/* top promo */
.pk-promo {
  background: linear-gradient(90deg, rgba(255, 75, 110, 0.08), rgba(29, 184, 166, 0.1));
  border-bottom: 1px solid var(--pk-line);
  padding: 10px 0 6px;
}

.pk-promo-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 14px;
}

.pk-promo-item {
  width: 70px;
  text-align: center;
}

.pk-promo-item a {
  display: inline-block;
  border-radius: 16px;
  text-decoration: none;
}

.pk-promo-item img {
  width: 58px;
  height: 58px;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: 0 8px 18px rgba(20, 24, 36, 0.12);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pk-promo-item img:hover {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 12px 22px rgba(20, 24, 36, 0.16);
}

.pk-promo-item span {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  color: var(--pk-ink-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* masthead */
.pk-mast {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: var(--pk-glass);
  border-bottom: 1px solid var(--pk-line);
  height: var(--pk-nav-h);
}

.pk-mast-row {
  height: var(--pk-nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.pk-brand img {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  object-fit: cover;
}

.pk-brand strong {
  font-family: var(--pk-font-display);
  font-size: 1.35rem;
  letter-spacing: 0.04em;
  font-weight: 400;
}

.pk-nav {
  display: flex;
  gap: 8px 18px;
  align-items: center;
}

.pk-nav a {
  color: var(--pk-ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
}

.pk-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--pk-rose), var(--pk-teal));
  transition: width 0.25s ease;
}

.pk-nav a:hover,
.pk-nav a.is-on {
  color: var(--pk-ink);
}

.pk-nav a:hover::after,
.pk-nav a.is-on::after {
  width: 100%;
}

.pk-burger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--pk-line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.7);
  cursor: pointer;
}

.pk-burger span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--pk-ink);
}

/* sticky download dock */
.pk-dock {
  position: sticky;
  top: var(--pk-nav-h);
  z-index: 40;
  display: none;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--pk-line);
  padding: 8px 0;
}

.pk-dock.is-show {
  display: block;
  animation: pk-slide-down 0.28s ease;
}

@keyframes pk-slide-down {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.pk-dock-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px 6px;
  justify-items: center;
}

.pk-dock-grid a {
  text-decoration: none;
  width: 100%;
  max-width: 72px;
  text-align: center;
}

.pk-dock-grid img {
  width: 48px;
  height: 48px;
  margin: 0 auto;
  border-radius: 14px;
  object-fit: cover;
  box-shadow: 0 6px 14px rgba(20, 24, 36, 0.12);
}

.pk-dock-grid span {
  display: block;
  font-size: 10px;
  color: var(--pk-ink-soft);
  margin-top: 3px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* hero */
.pk-hero {
  position: relative;
  overflow: hidden;
  padding: 36px 0 28px;
}

.pk-hero::before {
  content: "";
  position: absolute;
  inset: 8% -20% auto auto;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(255, 75, 110, 0.22), transparent 68%);
  pointer-events: none;
  animation: pk-pulse 7s ease-in-out infinite;
}

.pk-hero::after {
  content: "";
  position: absolute;
  inset: auto auto -10% -15%;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(29, 184, 166, 0.2), transparent 70%);
  pointer-events: none;
  animation: pk-pulse 9s ease-in-out infinite reverse;
}

@keyframes pk-pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.08);
  }
}

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

.pk-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--pk-teal-deep);
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.pk-eyebrow i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--pk-rose);
  box-shadow: 0 0 0 4px rgba(255, 75, 110, 0.18);
  animation: pk-blink 2.4s ease infinite;
}

@keyframes pk-blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.45;
  }
}

.pk-hero h1 {
  font-family: var(--pk-font-display);
  font-size: clamp(1.9rem, 6vw, 2.8rem);
  line-height: 1.25;
  margin: 0 0 14px;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.pk-lead {
  margin: 0;
  color: var(--pk-ink-soft);
  font-size: 1.02rem;
  max-width: 36em;
}

.pk-hero-visual {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: var(--pk-shadow);
  transform: rotate(-1.5deg);
  animation: pk-float 5.5s ease-in-out infinite;
}

@keyframes pk-float {
  0%,
  100% {
    transform: rotate(-1.5deg) translateY(0);
  }
  50% {
    transform: rotate(-1.5deg) translateY(-8px);
  }
}

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

.pk-hero-glow {
  position: absolute;
  inset: auto 12% -18% 12%;
  height: 40%;
  background: linear-gradient(180deg, transparent, rgba(255, 75, 110, 0.35));
  filter: blur(18px);
  pointer-events: none;
}

/* breadcrumb */
.pk-crumb {
  padding: 18px 0 6px;
  font-size: 0.88rem;
  color: var(--pk-ink-soft);
}

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

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

.pk-crumb span {
  margin: 0 6px;
  opacity: 0.5;
}

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

.pk-section h2 {
  font-family: var(--pk-font-display);
  font-size: clamp(1.45rem, 4vw, 2rem);
  margin: 0 0 12px;
  font-weight: 400;
}

.pk-section h3 {
  font-size: 1.12rem;
  margin: 28px 0 10px;
  color: var(--pk-ink);
}

.pk-section p {
  margin: 0 0 16px;
  color: var(--pk-ink-soft);
  font-size: 0.98rem;
}

.pk-kicker {
  color: var(--pk-rose);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

/* split media */
.pk-split {
  display: grid;
  gap: 24px;
  align-items: center;
  margin: 28px 0;
}

.pk-split.is-flip .pk-media {
  order: -1;
}

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

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

.pk-media::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: inherit;
  pointer-events: none;
}

/* cards */
.pk-card-grid {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.pk-card {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--pk-line);
  border-radius: 20px;
  padding: 20px 18px;
  box-shadow: 0 10px 28px rgba(20, 24, 36, 0.05);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.pk-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--pk-shadow);
}

.pk-card h3 {
  margin-top: 0;
  font-family: var(--pk-font-display);
  font-weight: 400;
  font-size: 1.2rem;
}

.pk-card p {
  margin-bottom: 0;
}

.pk-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 4px;
}

.pk-chip {
  font-size: 0.82rem;
  padding: 6px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(255, 75, 110, 0.1), rgba(29, 184, 166, 0.12));
  color: var(--pk-ink);
}

/* mosaic */
.pk-mosaic {
  display: grid;
  gap: 12px;
  margin: 24px 0;
}

.pk-mosaic figure {
  margin: 0;
  border-radius: 18px;
  overflow: hidden;
  background: #fff;
  box-shadow: var(--pk-shadow);
}

.pk-mosaic img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.45s ease;
}

.pk-mosaic figure:hover img {
  transform: scale(1.04);
}

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

/* quote band */
.pk-band {
  margin: 36px 0;
  padding: 28px 22px;
  border-radius: 24px;
  background:
    linear-gradient(135deg, rgba(255, 75, 110, 0.12), rgba(29, 184, 166, 0.14)),
    rgba(255, 255, 255, 0.65);
  border: 1px solid var(--pk-line);
  backdrop-filter: blur(10px);
}

.pk-band p {
  margin: 0;
  font-family: var(--pk-font-display);
  font-size: 1.2rem;
  color: var(--pk-ink);
  line-height: 1.7;
}

/* cta soft (not in hero/nav) */
.pk-soft-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 12px 20px;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--pk-rose), #ff7a5c 45%, var(--pk-teal));
  color: #fff !important;
  text-decoration: none !important;
  font-weight: 700;
  box-shadow: 0 12px 28px rgba(255, 75, 110, 0.28);
  transition: transform 0.2s ease, filter 0.2s ease;
}

.pk-soft-cta:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
  color: #fff !important;
}

/* legal pages */
.pk-legal {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--pk-line);
  border-radius: 24px;
  padding: 28px 22px 36px;
  box-shadow: var(--pk-shadow);
  margin: 12px 0 48px;
}

.pk-legal h1 {
  font-family: var(--pk-font-display);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  margin: 0 0 18px;
  font-weight: 400;
}

.pk-legal h2 {
  font-size: 1.2rem;
  margin: 28px 0 10px;
}

.pk-legal p,
.pk-legal li {
  color: var(--pk-ink-soft);
}

.pk-legal ul {
  padding-left: 1.2em;
}

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

.pk-error h1 {
  font-family: var(--pk-font-display);
  font-size: clamp(2.4rem, 10vw, 4rem);
  margin: 0 0 8px;
  background: linear-gradient(120deg, var(--pk-rose), var(--pk-teal));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.pk-error p {
  color: var(--pk-ink-soft);
  max-width: 28em;
}

.pk-error a {
  display: inline-block;
  margin-top: 18px;
  padding: 11px 22px;
  border-radius: 999px;
  background: var(--pk-ink);
  color: #fff;
  text-decoration: none;
}

/* footer */
.pk-foot {
  margin-top: 24px;
  padding: 36px 0 48px;
  border-top: 1px solid var(--pk-line);
  background: rgba(255, 255, 255, 0.45);
}

.pk-foot-grid {
  display: grid;
  gap: 22px;
}

.pk-foot strong {
  font-family: var(--pk-font-display);
  font-size: 1.2rem;
  display: block;
  margin-bottom: 8px;
}

.pk-foot p,
.pk-foot a {
  color: var(--pk-ink-soft);
  font-size: 0.92rem;
}

.pk-foot nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
}

.pk-foot a {
  text-decoration: none;
}

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

.pk-copy {
  margin-top: 22px;
  font-size: 0.82rem;
  color: #7a8298;
}

/* reveal */
.pk-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.pk-reveal.is-in {
  opacity: 1;
  transform: none;
}

/* timeline */
.pk-timeline {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  border-left: 2px solid rgba(29, 184, 166, 0.35);
}

.pk-timeline li {
  position: relative;
  padding: 0 0 22px 20px;
  color: var(--pk-ink-soft);
}

.pk-timeline li::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--pk-rose);
  box-shadow: 0 0 0 4px rgba(255, 75, 110, 0.15);
}

.pk-timeline strong {
  display: block;
  color: var(--pk-ink);
  margin-bottom: 4px;
}

/* links list */
.pk-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin: 18px 0;
}

.pk-links a {
  padding: 8px 14px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--pk-line);
  text-decoration: none;
  color: var(--pk-ink);
  font-size: 0.9rem;
}

.pk-links a:hover {
  border-color: var(--pk-teal);
  color: var(--pk-teal-deep);
}

@media (min-width: 720px) {
  .pk-hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .pk-split {
    grid-template-columns: 1fr 1fr;
  }

  .pk-split.is-flip .pk-media {
    order: 0;
  }

  .pk-split.is-flip .pk-copy-block {
    order: -1;
  }

  .pk-card-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .pk-mosaic {
    grid-template-columns: repeat(3, 1fr);
  }

  .pk-dock-grid {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }

  .pk-foot-grid {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
  }

  .pk-legal {
    padding: 36px 40px 48px;
  }
}

@media (max-width: 719px) {
  .pk-burger {
    display: inline-block;
  }

  .pk-nav {
    position: fixed;
    inset: var(--pk-nav-h) 12px auto 12px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--pk-line);
    border-radius: 16px;
    box-shadow: var(--pk-shadow);
  }

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

  .pk-nav a {
    padding: 12px 14px;
    border-radius: 12px;
  }

  .pk-nav a:hover {
    background: var(--pk-mist);
  }

  .pk-nav a::after {
    display: none;
  }
}