:root {
  color-scheme: light;
  --bg: #fff9fc;
  --surface: #ffffff;
  --surface-2: #fff0f6;
  --ink: #231824;
  --muted: #6c5f6f;
  --line: rgba(58, 33, 60, 0.14);
  --pink: #f15c9f;
  --violet: #6c4bc8;
  --mint: #46c7ad;
  --amber: #f3a93b;
  --deep: #21172f;
  --shadow: 0 18px 46px rgba(68, 34, 76, 0.14);
  --radius: 8px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 12%, rgba(241, 92, 159, 0.12), transparent 28rem),
    radial-gradient(circle at 82% 10%, rgba(70, 199, 173, 0.11), transparent 24rem),
    linear-gradient(180deg, #fff9fc 0%, #fff 42%, #fff7ed 100%);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.72;
  letter-spacing: 0;
}

strong {
  color: #9b2f70;
  font-weight: 900;
}

.hero strong,
.guide-section strong {
  color: #aef4de;
  text-shadow: 0 6px 20px rgba(70, 199, 173, 0.24);
}

.feature-card strong,
.faq-list strong,
.section-copy strong {
  padding: 0 2px;
  background: linear-gradient(180deg, transparent 58%, rgba(241, 92, 159, 0.18) 58%);
}

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

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

.container {
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  left: 12px;
  top: 12px;
  z-index: 100;
  transform: translateY(-140%);
  padding: 10px 14px;
  background: var(--deep);
  color: #fff;
  border-radius: 6px;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255, 255, 255, 0.42);
  background: rgba(255, 249, 252, 0.82);
  backdrop-filter: blur(16px);
  transition: box-shadow 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 10px 28px rgba(42, 27, 48, 0.08);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  color: var(--deep);
  white-space: nowrap;
}

.brand img {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  box-shadow: 0 8px 22px rgba(241, 92, 159, 0.24);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.brand:hover img {
  transform: translateY(-2px) rotate(-3deg);
  box-shadow: 0 12px 28px rgba(241, 92, 159, 0.34);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  position: relative;
  padding: 9px 12px;
  border-radius: 999px;
  color: #4e4053;
  font-size: 14px;
  font-weight: 700;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.nav-icon::before {
  content: "";
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  background: currentColor;
  -webkit-mask: var(--nav-mask) center / contain no-repeat;
  mask: var(--nav-mask) center / contain no-repeat;
}

.nav-intro {
  --nav-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 19.5A2.5 2.5 0 0 1 6.5 17H20'/%3E%3Cpath d='M4 4.5A2.5 2.5 0 0 1 6.5 2H20v20H6.5A2.5 2.5 0 0 1 4 19.5z'/%3E%3Cpath d='M8 7h8M8 11h6'/%3E%3C/svg%3E");
}

.nav-features {
  --nav-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 2v20M2 12h20'/%3E%3Cpath d='m4.9 4.9 14.2 14.2M19.1 4.9 4.9 19.1'/%3E%3C/svg%3E");
}

.nav-guide {
  --nav-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 18h6'/%3E%3Cpath d='M10 22h4'/%3E%3Cpath d='M8.5 14A6 6 0 1 1 15.5 14c-.9.7-1.5 1.7-1.5 3h-4c0-1.3-.6-2.3-1.5-3z'/%3E%3C/svg%3E");
}

.nav-updates {
  --nav-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 12a9 9 0 1 0 3-6.7'/%3E%3Cpath d='M3 3v6h6'/%3E%3Cpath d='M12 7v5l3 2'/%3E%3C/svg%3E");
}

.nav-faq {
  --nav-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 18h.01'/%3E%3Cpath d='M9.1 9a3 3 0 1 1 5.8 1c-.7 1.2-2.1 1.6-2.6 2.6-.2.4-.3.8-.3 1.4'/%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3C/svg%3E");
}

.site-nav a:hover,
.site-nav a.is-active {
  background: #ffe7f1;
  color: #9b2f70;
  transform: translateY(-1px);
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--pink), var(--mint));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 9px;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  background: var(--deep);
  transition: transform 180ms ease, opacity 180ms ease;
}

.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);
}

.hero {
  position: relative;
  min-height: 760px;
  display: grid;
  align-items: end;
  overflow: hidden;
  background: var(--deep);
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(18, 10, 25, 0.86) 0%, rgba(18, 10, 25, 0.62) 42%, rgba(18, 10, 25, 0.22) 100%),
    linear-gradient(0deg, rgba(18, 10, 25, 0.88) 0%, rgba(18, 10, 25, 0) 45%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 140px 0 72px;
  color: #fff;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--pink);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #aef4de;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 850px;
  margin: 0;
  color: #ffd6e8;
  font-size: clamp(34px, 5.6vw, 68px);
  line-height: 1.08;
  letter-spacing: 0;
  text-shadow: 0 8px 28px rgba(241, 92, 159, 0.34);
}

.hero-lead {
  max-width: 720px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(18px, 2vw, 24px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.hero-points li {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 7px 12px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.9);
  font-size: 14px;
  font-weight: 800;
}

.hero-points li::before {
  content: "";
  width: 7px;
  height: 7px;
  margin-right: 8px;
  border-radius: 50%;
  background: #aef4de;
  box-shadow: 0 0 0 4px rgba(174, 244, 222, 0.14);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  min-height: 48px;
  padding: 12px 22px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 900;
  line-height: 1.2;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

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

.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 0%, rgba(255, 255, 255, 0.34) 45%, transparent 70%);
  transform: translateX(-120%);
  transition: transform 520ms ease;
}

.btn:hover::after {
  transform: translateX(120%);
}

.btn > *,
.btn::before {
  position: relative;
  z-index: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--pink), #ff8b55);
  color: #fff;
  box-shadow: 0 14px 30px rgba(241, 92, 159, 0.28);
}

.btn-primary:hover {
  box-shadow: 0 18px 40px rgba(241, 92, 159, 0.38);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.56);
}

.btn-download::before {
  content: "";
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-right: 8px;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 3v12'/%3E%3Cpath d='m7 10 5 5 5-5'/%3E%3Cpath d='M5 21h14'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 3v12'/%3E%3Cpath d='m7 10 5 5 5-5'/%3E%3Cpath d='M5 21h14'/%3E%3C/svg%3E") center / contain no-repeat;
}

.btn-guide::before {
  content: "";
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-right: 8px;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 18h6'/%3E%3Cpath d='M10 22h4'/%3E%3Cpath d='M8.5 14A6 6 0 1 1 15.5 14c-.9.7-1.5 1.7-1.5 3h-4c0-1.3-.6-2.3-1.5-3z'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 18h6'/%3E%3Cpath d='M10 22h4'/%3E%3Cpath d='M8.5 14A6 6 0 1 1 15.5 14c-.9.7-1.5 1.7-1.5 3h-4c0-1.3-.6-2.3-1.5-3z'/%3E%3C/svg%3E") center / contain no-repeat;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 820px;
  margin: 42px 0 0;
}

.hero-facts div {
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  transition: transform 200ms ease, background 200ms ease, border-color 200ms ease;
}

.hero-facts div:hover {
  transform: translateY(-4px);
  border-color: rgba(174, 244, 222, 0.46);
  background: rgba(255, 255, 255, 0.18);
}

.hero-facts dt {
  color: #aef4de;
  font-size: 13px;
  font-weight: 800;
}

.hero-facts dd {
  margin: 4px 0 0;
  color: #fff;
  font-weight: 800;
}

.section {
  padding: 96px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading h2,
.section-copy h2,
.download-band h2 {
  margin: 0;
  color: #8f2f70;
  font-size: clamp(26px, 3.2vw, 40px);
  line-height: 1.16;
  letter-spacing: 0;
}

.guide-section .section-copy h2 {
  color: #ffd6e8;
}

.section-heading p,
.section-copy p {
  color: var(--muted);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.75fr);
  gap: 42px;
  align-items: center;
}

.cover-panel {
  margin: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.cover-panel img {
  width: 100%;
  border-radius: 6px;
}

.cover-panel:hover {
  transform: translateY(-6px);
  border-color: rgba(241, 92, 159, 0.28);
  box-shadow: 0 24px 60px rgba(68, 34, 76, 0.2);
}

figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.feature-section {
  background: linear-gradient(180deg, rgba(255, 240, 246, 0.72), rgba(255, 255, 255, 0.88));
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  position: relative;
  min-height: 236px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 12px 34px rgba(58, 33, 60, 0.08);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease, background 220ms ease;
}

.feature-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(241, 92, 159, 0.1), rgba(70, 199, 173, 0.08));
  opacity: 0;
  transition: opacity 220ms ease;
  pointer-events: none;
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: rgba(241, 92, 159, 0.28);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 24px 52px rgba(58, 33, 60, 0.14);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card:hover .sprite {
  transform: scale(1.08) rotate(-4deg);
}

.feature-card h3,
.guide-steps h3,
.timeline h3 {
  margin: 14px 0 8px;
  font-size: 21px;
  line-height: 1.25;
}

.feature-card p,
.guide-steps p,
.timeline p {
  margin: 0;
  color: var(--muted);
}

.sprite {
  display: inline-block;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='216' height='36' viewBox='0 0 216 36'%3E%3Crect width='36' height='36' rx='8' fill='%23f15c9f'/%3E%3Cpath d='M11 22l7-14 7 14-7-3-7 3z' fill='white'/%3E%3Crect x='36' width='36' height='36' rx='8' fill='%2346c7ad'/%3E%3Cpath d='M49 23c-3-4-1-10 5-10 6 0 8 6 5 10-2 3-8 3-10 0z' fill='white'/%3E%3Crect x='72' width='36' height='36' rx='8' fill='%23f3a93b'/%3E%3Cpath d='M84 13h12v5a6 6 0 0 1-12 0v-5zm-2 14h16' stroke='white' stroke-width='3' stroke-linecap='round' fill='none'/%3E%3Crect x='108' width='36' height='36' rx='8' fill='%236c4bc8'/%3E%3Cpath d='M119 25h14M126 11v14M120 17l6-6 6 6' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3Crect x='144' width='36' height='36' rx='8' fill='%2321172f'/%3E%3Cpath d='M154 24l6-14 4 8 6-4-5 12-4-7-7 5z' fill='white'/%3E%3Crect x='180' width='36' height='36' rx='8' fill='%23ff8b55'/%3E%3Cpath d='M190 24h16l-2-10h-12l-2 10zm4-10v-3h8v3' stroke='white' stroke-width='2.5' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E");
  background-size: 216px 36px;
  box-shadow: 0 10px 22px rgba(58, 33, 60, 0.12);
  transition: transform 220ms ease;
}

.sprite-explore { background-position: 0 0; }
.sprite-food { background-position: -36px 0; }
.sprite-cook { background-position: -72px 0; }
.sprite-growth { background-position: -108px 0; }
.sprite-battle { background-position: -144px 0; }
.sprite-ship { background-position: -180px 0; }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.gallery-grid figure {
  margin: 0;
  grid-column: span 4;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  overflow: hidden;
  box-shadow: 0 14px 34px rgba(58, 33, 60, 0.08);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.gallery-grid figure:hover {
  transform: translateY(-7px);
  border-color: rgba(70, 199, 173, 0.32);
  box-shadow: 0 24px 54px rgba(58, 33, 60, 0.15);
}

.gallery-grid figure:first-child,
.gallery-grid figure:nth-child(2) {
  grid-column: span 6;
}

.gallery-grid img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #f8edf5;
  transition: transform 320ms ease, filter 320ms ease;
}

.gallery-grid figure:hover img {
  transform: scale(1.045);
  filter: saturate(1.08) contrast(1.03);
}

.gallery-grid figcaption {
  padding: 0 14px 14px;
}

.guide-section {
  background: linear-gradient(135deg, #24172f 0%, #4a2850 52%, #2a4d47 100%);
  color: #fff;
}

.guide-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 34px;
  align-items: start;
}

.guide-section .section-copy p {
  color: rgba(255, 255, 255, 0.78);
}

.guide-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.guide-steps article {
  position: relative;
  min-height: 220px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.09);
  transition: transform 220ms ease, background 220ms ease, border-color 220ms ease;
}

.guide-steps article:hover {
  transform: translateY(-6px);
  border-color: rgba(174, 244, 222, 0.38);
  background: rgba(255, 255, 255, 0.14);
}

.guide-steps span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 30px;
  border-radius: 999px;
  background: rgba(174, 244, 222, 0.16);
  color: #aef4de;
  font-weight: 900;
  font-size: 13px;
}

.guide-steps p {
  color: rgba(255, 255, 255, 0.76);
}

.timeline {
  position: relative;
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline li {
  position: relative;
  padding: 22px 24px 22px 74px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 12px 32px rgba(58, 33, 60, 0.07);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.timeline li:hover {
  transform: translateX(6px);
  border-color: rgba(241, 92, 159, 0.3);
  box-shadow: 0 20px 44px rgba(58, 33, 60, 0.12);
}

.timeline li::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 28px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 8px rgba(70, 199, 173, 0.16);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.timeline li:hover::before {
  transform: scale(1.14);
  box-shadow: 0 0 0 10px rgba(241, 92, 159, 0.16);
}

.timeline time {
  color: #9b2f70;
  font-weight: 900;
  font-size: 14px;
}

.timeline h3 {
  margin-top: 6px;
}

.faq-section {
  background: rgba(255, 240, 246, 0.55);
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
  gap: 34px;
  align-items: start;
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 10px 26px rgba(58, 33, 60, 0.06);
  transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
}

details:hover,
details[open] {
  transform: translateY(-3px);
  border-color: rgba(241, 92, 159, 0.26);
  box-shadow: 0 18px 38px rgba(58, 33, 60, 0.12);
}

summary {
  cursor: pointer;
  padding: 18px 20px;
  font-weight: 900;
  list-style: none;
  transition: color 180ms ease;
}

details:hover summary,
details[open] summary {
  color: #9b2f70;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "+";
  float: right;
  color: var(--pink);
  font-size: 22px;
  line-height: 1;
}

details[open] summary::after {
  content: "-";
}

details p {
  margin: 0;
  padding: 0 20px 18px;
  color: var(--muted);
}

.download-band {
  padding: 58px 0;
  background:
    linear-gradient(135deg, rgba(241, 92, 159, 0.12), rgba(70, 199, 173, 0.14)),
    #fff;
}

.download-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow);
}

.download-inner p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.site-footer {
  padding: 30px 0;
  background: var(--deep);
  color: rgba(255, 255, 255, 0.74);
}

.floating-download {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 45;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 13px 20px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--pink), #ff8b55);
  color: #fff;
  font-weight: 900;
  line-height: 1.2;
  box-shadow: 0 18px 42px rgba(241, 92, 159, 0.32);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.floating-download:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 48px rgba(241, 92, 159, 0.38);
}

.friend-section {
  padding: 70px 0 74px;
  background: #f7f7f8;
  text-align: center;
}

.friend-section h2 {
  margin: 0 0 30px;
  color: #19151c;
  font-size: 26px;
  line-height: 1.2;
  letter-spacing: 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-inner p {
  margin: 0;
}

.footer-copy {
  display: grid;
  gap: 12px;
}

.friend-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 14px;
}

.friend-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 8px 24px;
  border: 1px solid #e8e8ec;
  border-radius: 999px;
  background: #fff;
  color: #2b252d;
  font-weight: 800;
  box-shadow: 0 2px 8px rgba(24, 20, 28, 0.04);
  transition: transform 180ms ease, color 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.friend-links a:hover {
  transform: translateY(-2px);
  color: #9b2f70;
  border-color: rgba(241, 92, 159, 0.36);
  box-shadow: 0 10px 24px rgba(58, 33, 60, 0.1);
}

.footer-inner a {
  color: #aef4de;
  font-weight: 900;
  white-space: nowrap;
  transition: color 180ms ease, transform 180ms ease;
}

.footer-inner a:hover {
  color: #ffd6e8;
  transform: translateY(-1px);
}

@media (max-width: 920px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .nav-toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    left: 14px;
    right: 14px;
    top: 72px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    border-radius: 6px;
  }

  .hero {
    min-height: 680px;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(18, 10, 25, 0.9) 0%, rgba(18, 10, 25, 0.64) 100%),
      linear-gradient(0deg, rgba(18, 10, 25, 0.84) 0%, rgba(18, 10, 25, 0) 48%);
  }

  .intro-grid,
  .guide-layout,
  .faq-layout {
    grid-template-columns: 1fr;
  }

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

  .gallery-grid figure,
  .gallery-grid figure:first-child,
  .gallery-grid figure:nth-child(2) {
    grid-column: span 6;
  }

  .download-inner,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .friend-section {
    padding: 56px 0 60px;
  }

  .friend-links {
    gap: 9px;
  }

  .friend-links a {
    min-height: 40px;
    padding: 8px 18px;
  }
}

@media (max-width: 620px) {
  body {
    font-size: 15px;
  }

  .header-inner {
    min-height: 64px;
  }

  .brand span {
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .site-nav {
    top: 64px;
  }

  .hero {
    min-height: 640px;
  }

  .hero-bg {
    object-position: 64% center;
  }

  .hero-content {
    padding: 118px 0 42px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .hero-facts {
    grid-template-columns: 1fr;
    margin-top: 28px;
  }

  .section {
    padding: 68px 0;
  }

  .feature-grid,
  .guide-steps {
    grid-template-columns: 1fr;
  }

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

  .gallery-grid figure,
  .gallery-grid figure:first-child,
  .gallery-grid figure:nth-child(2) {
    grid-column: auto;
  }

  .timeline li {
    padding: 22px 18px 22px 58px;
  }

  .timeline li::before {
    left: 20px;
  }

  .download-inner {
    padding: 24px;
  }

  .floating-download {
    right: 14px;
    bottom: 14px;
    min-height: 46px;
    padding: 12px 16px;
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}