:root {
  --bg: #fff0f5;
  --bg-soft: #f8edff;
  --panel: #ffffff;
  --panel-soft: rgba(255, 255, 255, 0.82);
  --ink: #342536;
  --muted: #725f74;
  --line: #f5bfd8;
  --lavender: #e6e6fa;
  --pink: #ff69b4;
  --hot: #ff1493;
  --rose: #ffe1ef;
  --shadow: 0 18px 50px rgba(255, 105, 180, 0.18);
  --radius: 8px;
  --container: min(1120px, calc(100% - 36px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family:
    "Microsoft YaHei",
    "PingFang SC",
    "Noto Sans CJK SC",
    Arial,
    sans-serif;
  line-height: 1.75;
  background:
    radial-gradient(circle at 12% 10%, rgba(255, 105, 180, 0.16), transparent 32%),
    radial-gradient(circle at 84% 18%, rgba(230, 230, 250, 0.8), transparent 34%),
    linear-gradient(135deg, var(--bg) 0%, var(--lavender) 100%);
  letter-spacing: 0;
}

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

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

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

p {
  margin: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  transform: translateY(-160%);
  padding: 10px 14px;
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--hot);
  box-shadow: var(--shadow);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(245, 191, 216, 0.62);
  background: rgba(255, 240, 245, 0.9);
  backdrop-filter: blur(16px);
}

.nav {
  width: var(--container);
  min-height: 74px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
  font-weight: 800;
  color: #5a2d5f;
}

.brand img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid #fff;
  box-shadow: 0 8px 20px rgba(255, 20, 147, 0.18);
}

.nav-menu {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
}

.nav-menu a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 9px 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: #5f4764;
  font-size: 14px;
  font-weight: 700;
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.nav-menu a:hover {
  color: var(--hot);
  border-color: rgba(255, 20, 147, 0.38);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 10px 24px rgba(255, 105, 180, 0.14);
  transform: translateY(-1px);
}

.nav-menu a:hover span {
  color: var(--hot);
}

.nav-menu svg,
.btn svg {
  flex: 0 0 auto;
  width: 17px;
  height: 17px;
}

.nav-menu a svg {
  box-sizing: content-box;
  padding: 7px;
  margin: -7px 0;
  border-radius: 50%;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.nav-menu a:hover svg {
  background: rgba(255, 105, 180, 0.14);
  box-shadow: none;
}

.nav-menu .nav-cta {
  margin-left: 8px;
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--pink), var(--hot));
  box-shadow: 0 10px 24px rgba(255, 20, 147, 0.24);
}

.nav-menu .nav-cta:hover {
  color: var(--hot);
  border-color: rgba(255, 20, 147, 0.54);
  background: #fff;
  box-shadow: 0 14px 30px rgba(255, 20, 147, 0.24);
}

.nav-menu .nav-cta:hover span {
  color: var(--hot);
}

.nav-menu .nav-cta:hover svg {
  color: var(--hot);
  background: rgba(255, 105, 180, 0.14);
  box-shadow: 0 8px 18px rgba(255, 105, 180, 0.14);
}

.nav-menu .nav-cta:focus-visible {
  color: #fff;
  outline: 3px solid rgba(255, 105, 180, 0.32);
  outline-offset: 3px;
  background: linear-gradient(135deg, var(--hot), #ff4fb0);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  border-radius: 999px;
  background: var(--hot);
  transition: transform 0.2s ease, opacity 0.2s ease;
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 680px;
  display: grid;
  align-items: end;
  overflow: hidden;
  border-bottom: 1px solid rgba(245, 191, 216, 0.64);
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 240, 245, 0.96) 0%, rgba(255, 240, 245, 0.78) 44%, rgba(230, 230, 250, 0.28) 100%),
    linear-gradient(0deg, rgba(255, 240, 245, 1) 0%, rgba(255, 240, 245, 0) 38%);
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: var(--container);
  margin: 0 auto;
  padding: 132px 0 76px;
}

.eyebrow {
  margin-bottom: 10px;
  color: var(--hot);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.2;
  letter-spacing: 0;
}

h1 {
  max-width: 680px;
  color: #4a2652;
  font-size: clamp(38px, 6vw, 72px);
  font-weight: 900;
}

h2 {
  color: #4b2d53;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 900;
}

h3 {
  color: #513158;
  font-size: 20px;
  font-weight: 850;
}

.hero-copy {
  max-width: 660px;
  margin-top: 18px;
  color: #5f4b63;
  font-size: 18px;
}

.hero-actions,
.cta-section {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-actions {
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 850;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--pink), var(--hot));
  box-shadow: 0 14px 30px rgba(255, 20, 147, 0.28);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #ff4fb0, var(--hot));
  box-shadow: 0 18px 42px rgba(255, 20, 147, 0.34);
}

.btn-secondary {
  color: #713d71;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--line);
}

.btn-secondary:hover {
  color: var(--hot);
  border-color: rgba(255, 20, 147, 0.34);
  background: #fff;
  box-shadow: 0 14px 32px rgba(255, 105, 180, 0.16);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 150px));
  gap: 12px;
  max-width: 510px;
  margin: 34px 0 0;
}

.hero-stats div {
  padding: 16px;
  border: 1px solid rgba(245, 191, 216, 0.82);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 8px 18px rgba(255, 105, 180, 0.1);
}

.hero-stats dt {
  color: var(--muted);
  font-size: 13px;
}

.hero-stats dd {
  margin: 4px 0 0;
  color: #4a2652;
  font-weight: 900;
}

.section {
  width: var(--container);
  margin: 0 auto;
  padding: 86px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-heading p:last-child {
  margin-top: 12px;
  color: var(--muted);
  font-size: 16px;
}

.intro-grid,
.content-layout,
.showcase {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.82fr);
  align-items: center;
  gap: 28px;
}

.content-layout,
.showcase {
  grid-template-columns: minmax(340px, 0.86fr) minmax(0, 1fr);
}

.text-panel,
.guide-card,
.feature-list article,
.intro-detail-grid article,
.faq-list details,
.cta-section {
  border: 1px solid rgba(245, 191, 216, 0.9);
  border-radius: var(--radius);
  background: var(--panel-soft);
  box-shadow: var(--shadow);
  transition: transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease, background 0.24s ease;
}

.text-panel:hover,
.guide-card:hover,
.feature-list article:hover,
.intro-detail-grid article:hover,
.feature-detail-grid article:hover,
.faq-list details:hover {
  border-color: rgba(255, 20, 147, 0.34);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 22px 58px rgba(255, 105, 180, 0.2);
  transform: translateY(-4px);
}

.text-panel {
  padding: 30px;
}

.text-panel p {
  margin-top: 14px;
  color: var(--muted);
}

.intro-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.intro-detail-grid article {
  padding: 20px;
}

.intro-detail-grid p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 15px;
}

.image-card,
.wide-image,
.gallery figure {
  overflow: hidden;
  border: 1px solid rgba(245, 191, 216, 0.9);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
  transition: transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
}

.image-card:hover,
.wide-image:hover,
.gallery figure:hover {
  border-color: rgba(255, 20, 147, 0.34);
  box-shadow: 0 24px 62px rgba(255, 105, 180, 0.22);
  transform: translateY(-4px);
}

.image-card img,
.wide-image img,
.gallery img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 0.35s ease, filter 0.35s ease;
}

.image-card:hover img,
.wide-image:hover img,
.gallery figure:hover img {
  transform: scale(1.025);
  filter: saturate(1.08) contrast(1.03);
}

figcaption {
  padding: 12px 14px;
  color: var(--muted);
  font-size: 14px;
}

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

.feature-list article {
  min-height: 220px;
  padding: 22px;
}

.feature-list article:hover .icon {
  transform: rotate(8deg) scale(1.08);
}

.icon {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  margin-bottom: 14px;
  border-radius: 50%;
  color: #fff;
  font-size: 13px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--pink), var(--hot));
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.feature-list p,
.guide-card p {
  margin-top: 10px;
  color: var(--muted);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.guide-card {
  padding: 22px;
}

.wide-image {
  margin-top: 22px;
}

.wide-image img {
  max-height: 420px;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.pill-list span {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  color: #5a3a62;
  font-weight: 800;
  box-shadow: 0 10px 24px rgba(255, 105, 180, 0.1);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease, color 0.22s ease, background 0.22s ease;
}

.pill-list span:hover {
  color: var(--hot);
  border-color: rgba(255, 20, 147, 0.36);
  background: #fff;
  box-shadow: 0 14px 28px rgba(255, 105, 180, 0.16);
  transform: translateY(-2px);
}

.feature-detail-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.feature-detail-grid article {
  padding: 20px;
  border: 1px solid rgba(245, 191, 216, 0.9);
  border-radius: var(--radius);
  background: var(--panel-soft);
  box-shadow: 0 14px 32px rgba(255, 105, 180, 0.12);
  transition: transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease, background 0.24s ease;
}

.feature-detail-grid p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 15px;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.gallery figure {
  margin: 0;
}

.gallery-button {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}

.gallery-button img {
  transition: transform 0.25s ease, filter 0.25s ease;
}

.gallery-button:hover img,
.gallery-button:focus-visible img {
  transform: scale(1.02);
  filter: saturate(1.08);
}

.gallery-button:focus-visible {
  outline: 3px solid rgba(255, 20, 147, 0.32);
  outline-offset: 4px;
}

.gallery img {
  min-height: 170px;
}

.timeline {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline li {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 18px;
  border: 1px solid rgba(245, 191, 216, 0.88);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
}

.timeline li:hover {
  border-color: rgba(255, 20, 147, 0.32);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 14px 34px rgba(255, 105, 180, 0.14);
  transform: translateX(4px);
}

.timeline time,
.timeline strong {
  color: var(--hot);
  font-weight: 900;
}

.timeline span {
  color: var(--muted);
}

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

.faq-list details {
  padding: 0 18px;
}

.faq-list summary {
  cursor: pointer;
  padding: 18px 0;
  color: #503157;
  font-weight: 900;
  transition: color 0.2s ease;
}

.faq-list details:hover summary,
.faq-list details[open] summary {
  color: var(--hot);
}

.faq-list p {
  padding: 0 0 18px;
  color: var(--muted);
}

.cta-section {
  justify-content: space-between;
  gap: 24px;
  padding: 30px;
}

.cta-section:hover {
  border-color: rgba(255, 20, 147, 0.36);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 26px 68px rgba(255, 105, 180, 0.22);
  transform: translateY(-3px);
}

.cta-section p:not(.eyebrow) {
  max-width: 720px;
  margin-top: 12px;
  color: var(--muted);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  width: var(--container);
  margin: 0 auto;
  padding: 34px 0 46px;
  border-top: 1px solid rgba(245, 191, 216, 0.9);
  color: var(--muted);
  font-size: 14px;
}

.friend-links {
  width: 100%;
  padding: 76px 18px;
  border-top: 1px solid rgba(245, 191, 216, 0.72);
  border-bottom: 1px solid rgba(245, 191, 216, 0.72);
  background:
    radial-gradient(circle at 28% 40%, rgba(255, 105, 180, 0.22), transparent 34%),
    radial-gradient(circle at 70% 30%, rgba(230, 230, 250, 0.86), transparent 38%),
    linear-gradient(135deg, #fff0f5 0%, #f8edff 52%, #e6e6fa 100%);
}

.friend-links-inner {
  width: var(--container);
  margin: 0 auto;
  text-align: center;
}

.friend-links h2 {
  position: relative;
  display: inline-block;
  margin-bottom: 30px;
  color: #4b2d53;
}

.friend-links h2::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -12px;
  width: 90px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--pink), transparent);
  transform: translateX(-50%);
}

.friend-link-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 18px;
}

.friend-link-list a {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border: 1px solid rgba(255, 105, 180, 0.34);
  border-radius: 999px;
  color: #6a3f70;
  background: rgba(255, 255, 255, 0.54);
  box-shadow: 0 14px 34px rgba(255, 105, 180, 0.12);
  font-weight: 850;
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease, color 0.22s ease, background 0.22s ease;
}

.friend-link-list a:hover,
.friend-link-list a:focus-visible {
  color: var(--hot);
  border-color: rgba(255, 20, 147, 0.52);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 42px rgba(255, 105, 180, 0.2);
  transform: translateY(-3px);
}

.site-footer p {
  max-width: 820px;
}

.site-footer a {
  min-width: max-content;
  color: var(--hot);
  font-weight: 900;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(74, 38, 82, 0.52);
  backdrop-filter: blur(10px);
}

.lightbox[hidden] {
  display: none;
}

.lightbox-panel {
  width: min(980px, 100%);
  max-height: calc(100vh - 96px);
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(245, 191, 216, 0.95);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 30px 80px rgba(74, 38, 82, 0.32);
}

.lightbox-panel img {
  width: 100%;
  max-height: calc(100vh - 156px);
  object-fit: contain;
  background: #fff0f5;
}

.lightbox-close {
  position: fixed;
  top: 18px;
  right: 18px;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid rgba(245, 191, 216, 0.95);
  border-radius: 50%;
  color: var(--hot);
  background: #fff;
  box-shadow: 0 12px 30px rgba(255, 20, 147, 0.2);
  cursor: pointer;
  font-size: 28px;
  line-height: 1;
}

.lightbox-close:hover,
.lightbox-close:focus-visible {
  color: #fff;
  background: linear-gradient(135deg, var(--pink), var(--hot));
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (max-width: 980px) {
  .nav-toggle {
    display: inline-block;
  }

  .nav-menu {
    position: absolute;
    top: 74px;
    left: 18px;
    right: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow);
  }

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

  .nav-menu a {
    justify-content: flex-start;
    padding: 12px 14px;
    border-radius: 999px;
  }

  .nav-menu .nav-cta {
    margin-left: 0;
    justify-content: center;
    text-align: center;
  }

  .hero {
    min-height: 620px;
  }

  .intro-grid,
  .content-layout,
  .showcase {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  :root {
    --container: min(100% - 24px, 1120px);
  }

  .nav {
    min-height: 66px;
  }

  .nav-menu {
    top: 66px;
  }

  .hero {
    min-height: 610px;
  }

  .hero-media::after {
    background:
      linear-gradient(0deg, rgba(255, 240, 245, 1) 0%, rgba(255, 240, 245, 0.88) 54%, rgba(255, 240, 245, 0.42) 100%),
      linear-gradient(90deg, rgba(255, 240, 245, 0.92), rgba(230, 230, 250, 0.32));
  }

  .hero-content {
    padding: 110px 0 50px;
  }

  .hero-copy {
    font-size: 16px;
  }

  .hero-stats,
  .feature-list,
  .guide-grid,
  .intro-detail-grid,
  .feature-detail-grid,
  .gallery {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 58px 0;
  }

  .text-panel,
  .guide-card,
  .feature-list article,
  .cta-section {
    padding: 20px;
  }

  .timeline li {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .site-footer,
  .cta-section {
    flex-direction: column;
    align-items: flex-start;
  }
}