:root {
  --white: #ffffff;
  --pink-bg: #fff2f6;
  --pink: #ff7fa8;
  --pink-deep: #e15b87;
  --indigo: #22224a;
  --indigo-soft: #41416e;
  --muted: #6f6f8c;
  --line: rgba(34, 34, 74, 0.12);
  --shell: 1130px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--white);
  color: var(--indigo);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.76;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3 { margin: 0; line-height: 1.32; font-weight: 700; }

.page-shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav-shell {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  white-space: nowrap;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  object-fit: cover;
  border: 1px solid var(--line);
}

.primary-nav { margin-left: auto; }

.primary-nav ul {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 14px;
  color: var(--muted);
}

.primary-nav a {
  display: inline-block;
  padding: 4px 0;
  position: relative;
  transition: color 0.18s ease;
}

.primary-nav a:hover { color: var(--pink-deep); }

.primary-nav a:hover::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  border-radius: 2px;
  background: var(--pink);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-download {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 17px;
  border-radius: 999px;
  background: linear-gradient(96deg, var(--pink), var(--pink-deep));
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 10px 20px rgba(225, 91, 135, 0.24);
  transition: transform 0.16s ease;
}

.nav-download:hover { transform: translateY(-1px); }

.nav-download svg,
.button svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.1;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: none;
}

.menu-toggle {
  display: none;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  cursor: pointer;
  padding: 0;
}

.menu-toggle span {
  display: block;
  width: 15px;
  height: 2px;
  margin: 3px auto;
  border-radius: 2px;
  background: var(--indigo);
}

/* ---------- hero ---------- */
.hero {
  padding: 56px 0 48px;
  background:
    radial-gradient(560px 300px at 4% 0%, rgba(255, 127, 168, 0.16), transparent 66%),
    var(--white);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
  gap: 44px;
  align-items: center;
}

.hero-kicker {
  display: inline-block;
  padding: 3px 11px;
  border-radius: 999px;
  background: var(--pink-bg);
  color: var(--pink-deep);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.hero h1 {
  margin: 14px 0 8px;
  font-size: clamp(32px, 4.6vw, 52px);
  letter-spacing: 0.02em;
}

.hero-subtitle {
  font-size: clamp(16px, 1.9vw, 20px);
  font-weight: 700;
  color: var(--pink-deep);
}

.hero-lead {
  margin-top: 15px;
  max-width: 470px;
  color: var(--muted);
  font-size: 15px;
}

.hero-actions {
  margin-top: 24px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 23px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.button-primary {
  background: linear-gradient(96deg, var(--pink), var(--pink-deep));
  color: #ffffff;
  box-shadow: 0 14px 26px rgba(225, 91, 135, 0.24);
}

.button-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 30px rgba(225, 91, 135, 0.3);
}

.button-large { padding: 14px 27px; font-size: 15.5px; }

.text-link {
  font-size: 14px;
  font-weight: 700;
  color: var(--indigo-soft);
  border-bottom: 1px dashed rgba(34, 34, 74, 0.3);
  padding-bottom: 2px;
}

.text-link:hover { color: var(--pink-deep); }

.hero-tags {
  margin-top: 25px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12.5px;
  color: var(--muted);
}

.hero-tags li {
  padding: 4px 11px;
  border-radius: 999px;
  background: var(--pink-bg);
  border: 1px solid rgba(255, 127, 168, 0.28);
}

.hero-tags b { color: var(--pink-deep); }

/* ---------- hero gallery strip ---------- */
.gallery-strip {
  padding: 14px 14px 12px;
  border-radius: 18px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 22px 44px rgba(34, 34, 74, 0.1);
}

.strip-top {
  display: flex;
  gap: 8px;
}

.strip-poster {
  flex: 1 1 0;
  min-width: 0;
  aspect-ratio: 3 / 4;
  border-radius: 10px;
  padding: 9px 8px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 1px;
  color: #ffffff;
  overflow: hidden;
}

.strip-poster span {
  font-size: 11px;
  opacity: 0.86;
}

.strip-poster b { font-size: 13px; }

.strip-poster-a { background: linear-gradient(168deg, #ff9dbb, #e15b87); }
.strip-poster-b { background: linear-gradient(168deg, #8a8ad6, #41416e); }
.strip-poster-c { background: linear-gradient(168deg, #ffc2d4, #ff7fa8); }
.strip-poster-d { background: linear-gradient(168deg, #4c4c86, #22224a); }

.strip-tick {
  position: relative;
  margin-top: 13px;
  height: 16px;
  background:
    repeating-linear-gradient(90deg, rgba(34, 34, 74, 0.26) 0 1px, transparent 1px 12px),
    repeating-linear-gradient(90deg, rgba(34, 34, 74, 0.1) 0 1px, transparent 1px 4px);
  background-position: left bottom;
  background-size: auto 9px, auto 5px;
  background-repeat: repeat-x;
}

.strip-tick span {
  position: absolute;
  left: 34%;
  top: -3px;
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 7px solid var(--pink-deep);
}

.strip-caption {
  margin-top: 9px;
  font-size: 11.5px;
  color: var(--muted);
}

/* ---------- section shared ---------- */
section { padding: 50px 0; }

.section-heading {
  max-width: 660px;
  margin-bottom: 26px;
}

.section-heading .eyebrow {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  font-weight: 700;
  color: var(--pink-deep);
  margin-bottom: 9px;
}

.section-heading h2 { font-size: clamp(22px, 2.7vw, 30px); }

.section-heading p:last-child {
  margin-top: 9px;
  color: var(--muted);
  font-size: 14px;
}

.section-heading-split {
  max-width: none;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 22px;
}

.section-heading-split > p {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}

/* ---------- features ---------- */
.features { background: var(--pink-bg); }

.strip-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.strip-grid article {
  padding: 19px 18px 21px;
  border-radius: 14px;
  background: var(--white);
  border: 1px solid rgba(255, 127, 168, 0.22);
  box-shadow: 0 10px 22px rgba(34, 34, 74, 0.06);
}

.strip-num {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--pink-deep);
  margin-bottom: 8px;
}

.strip-grid h3 { font-size: 16.5px; margin-bottom: 6px; }

.strip-grid p { font-size: 13.4px; color: var(--muted); }

/* ---------- shots ---------- */
.strip-shots {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 13px;
}

.strip-shots figure {
  margin: 0;
  border-radius: 14px;
  overflow: hidden;
  background: var(--pink-bg);
  border: 1px solid var(--line);
}

.strip-shots img {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: top center;
  background: var(--pink-bg);
}

.strip-shots figcaption {
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 9px 12px 11px;
  font-size: 12.5px;
  font-weight: 700;
  background: var(--white);
}

.strip-shots figcaption b { font-size: 10.5px; color: var(--pink-deep); }

.strip-shots figcaption small {
  margin-left: auto;
  font-weight: 400;
  font-size: 10.5px;
  color: var(--muted);
}

.sample-note {
  margin-top: 14px;
  font-size: 12px;
  color: var(--muted);
}

/* ---------- faq ---------- */
.faq { background: var(--white); border-top: 1px solid var(--line); }

.faq-rows {
  display: grid;
  gap: 8px;
  max-width: 900px;
}

.faq-rows details {
  border-radius: 12px;
  background: var(--pink-bg);
  border: 1px solid rgba(255, 127, 168, 0.24);
  padding: 0 18px;
}

.faq-rows details[open] { border-color: rgba(225, 91, 135, 0.5); }

.faq-rows summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 0;
  cursor: pointer;
  list-style: none;
}

.faq-rows summary::-webkit-details-marker { display: none; }

.faq-rows summary h3 { flex: 1; font-size: 15px; }

.faq-rows summary i {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(255, 127, 168, 0.26);
}

.faq-rows summary i::before,
.faq-rows summary i::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--pink-deep);
  border-radius: 2px;
  transform: translate(-50%, -50%);
}

.faq-rows summary i::before { width: 9px; height: 2px; }
.faq-rows summary i::after { width: 2px; height: 9px; transition: opacity 0.2s ease; }
.faq-rows details[open] summary i::after { opacity: 0; }

.faq-rows details > p {
  padding: 11px 0 14px;
  border-top: 1px dashed rgba(225, 91, 135, 0.24);
  font-size: 13.8px;
  color: var(--indigo-soft);
}

/* ---------- reviews ---------- */
.reviews { background: var(--pink-bg); border-top: 1px solid var(--line); }

.note-wall {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.review-card {
  padding: 16px 17px 14px;
  border-radius: 14px;
  background: var(--white);
  border: 1px solid rgba(255, 127, 168, 0.2);
}

.review-card > p { font-size: 13.6px; color: var(--indigo-soft); }

.review-meta {
  margin-top: 11px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding-top: 9px;
  border-top: 1px dashed var(--line);
  font-size: 10.5px;
  color: var(--muted);
}

.review-meta b { font-size: 11.5px; color: var(--pink-deep); }

/* ---------- steps ---------- */
.steps { background: var(--white); }

.pick-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.pick-row li {
  padding: 20px 19px 22px;
  border-radius: 14px;
  background: var(--pink-bg);
  border: 1px solid rgba(255, 127, 168, 0.22);
}

.pick-row span {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--pink-deep);
}

.pick-row h3 { font-size: 16.5px; margin: 5px 0 4px; }

.pick-row p { font-size: 13.4px; color: var(--muted); }

/* ---------- download ---------- */
.download { padding-bottom: 60px; }

.download-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 32px;
  border-radius: 18px;
  background:
    radial-gradient(360px 200px at 92% 4%, rgba(255, 127, 168, 0.2), transparent 66%),
    var(--indigo);
  color: #f6f4fb;
}

.download-copy { max-width: 520px; }

.download-copy .eyebrow {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  font-weight: 700;
  color: #ffb3ca;
  margin-bottom: 8px;
}

.download-copy h2 {
  font-size: clamp(22px, 2.6vw, 29px);
  margin-bottom: 7px;
}

.download-copy p { font-size: 14px; color: rgba(246, 244, 251, 0.74); }

.download-act {
  flex: none;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 11px;
}

.download-act .button-primary {
  background: #ffffff;
  color: var(--pink-deep);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.26);
}

.download-notes {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 13px;
  font-size: 11.5px;
  color: rgba(246, 244, 251, 0.7);
}

.download-notes li::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 5px;
  border-radius: 50%;
  background: var(--pink);
  vertical-align: 1px;
}

/* ---------- footer ---------- */
.site-footer {
  background: #1b1b3c;
  color: #e9e7f4;
  padding: 30px 0 26px;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr) minmax(0, 0.8fr);
  gap: 20px 28px;
  align-items: start;
}

.footer-brand strong { display: block; font-size: 16.5px; }

.footer-brand p {
  margin-top: 5px;
  font-size: 12px;
  color: rgba(233, 231, 244, 0.62);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 16px;
  font-size: 12.5px;
  color: rgba(233, 231, 244, 0.76);
}

.footer-nav a:hover { color: var(--pink); }

.footer-meta {
  font-size: 12px;
  color: rgba(233, 231, 244, 0.62);
  text-align: right;
}

.footer-meta a { text-decoration: underline; }

.disclaimer {
  grid-column: 1 / -1;
  padding-top: 14px;
  border-top: 1px solid rgba(233, 231, 244, 0.16);
  font-size: 11.5px;
  line-height: 1.7;
  color: rgba(233, 231, 244, 0.56);
}

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 30px; }
  .gallery-strip { max-width: 540px; }
  .strip-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .strip-shots { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .note-wall { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-meta { text-align: left; }
  .download-panel { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 900px) {
  .primary-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    margin-left: 0;
    display: none;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    padding: 8px 24px 14px;
  }

  .primary-nav.is-open { display: block; }

  .primary-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    font-size: 14.5px;
  }

  .primary-nav li { width: 100%; }

  .primary-nav a {
    display: block;
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
  }

  .nav-actions { margin-left: auto; }
  .menu-toggle { display: block; }
  .nav-download span { display: none; }
  .nav-download { padding: 9px 11px; }
}

@media (max-width: 640px) {
  .page-shell, .nav-shell { padding-left: 18px; padding-right: 18px; }
  section { padding: 40px 0; }
  .hero { padding: 38px 0 32px; }
  .strip-grid { grid-template-columns: minmax(0, 1fr); }
  .note-wall { grid-template-columns: minmax(0, 1fr); }
  .pick-row { grid-template-columns: minmax(0, 1fr); }
  .section-heading-split { flex-direction: column; align-items: flex-start; gap: 4px; }
  .section-heading-split > p { white-space: normal; }
  .download-panel { padding: 24px 20px; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .download-act { width: 100%; }
  .download-act .button { width: 100%; justify-content: center; }
  .strip-poster { padding: 7px 6px; }
  .strip-poster b { font-size: 12px; }
}

@media (max-width: 400px) {
  .strip-shots { grid-template-columns: minmax(0, 1fr); }
  .brand span { font-size: 15px; }
  .hero h1 { font-size: 30px; }
  .strip-top { gap: 6px; }
}