@charset "UTF-8";

:root {
  --bg: #fffafc;
  --bg-2: #fff2f7;
  --panel: #ffffff;
  --line: #f3dbe6;
  --ink: #2b2230;
  --muted: #7b6b78;
  --pink: #ff7ba9;
  --pink-deep: #e0548a;
  --lilac: #c9a7ff;
  --cream: #fff7fa;
  --shell: 1180px;
  --header-height: 70px;
  --mono: "JetBrains Mono", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 18px); }
body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
svg { display: block; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--pink-deep); outline-offset: 4px; }
.page-shell { width: min(calc(100% - 48px), var(--shell)); margin: 0 auto; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 12px;
  color: var(--pink-deep);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 2px;
  line-height: 1.5;
}
.eyebrow::before { width: 14px; height: 2px; content: ""; background: linear-gradient(90deg, var(--pink), var(--lilac)); }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 250, 252, .95);
  backdrop-filter: blur(12px);
}
.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 48px), var(--shell));
  min-height: var(--header-height);
  margin: 0 auto;
  gap: 18px;
}
.brand { display: inline-flex; align-items: center; flex: none; gap: 9px; font-size: 21px; font-weight: 900; letter-spacing: -.3px; color: #3a2a3a; }
.brand img { width: 38px; height: 38px; border-radius: 50%; object-fit: contain; background: #fff; box-shadow: 0 0 0 2px #ffd8e6; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--pink);
  color: #fff;
  font-size: 11px;
  font-style: normal;
  font-weight: 900;
}
.primary-nav { margin-left: auto; }
.primary-nav ul { display: flex; align-items: center; gap: clamp(12px, 2vw, 25px); padding: 0; margin: 0; list-style: none; }
.primary-nav a { display: block; padding: 7px 0; border-bottom: 2px solid transparent; color: #6e5a68; font-size: 13px; font-weight: 700; }
.primary-nav a:hover { border-bottom-color: var(--pink); color: var(--pink-deep); }
.nav-actions { display: flex; align-items: center; flex: none; gap: 10px; }
.nav-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  gap: 8px;
  padding: 0 18px;
  border: 1px solid var(--pink);
  border-radius: 999px;
  background: linear-gradient(120deg, var(--pink), var(--lilac));
  color: #fff;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  transition: filter .18s ease, box-shadow .18s ease;
}
.nav-download:hover { filter: brightness(.95); box-shadow: 0 10px 20px rgba(224, 84, 138, .24); }
.nav-download svg, .button svg { width: 18px; height: 18px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 0; border: 1px solid var(--line); border-radius: 50%; background: #fff; cursor: pointer; }
.menu-toggle span { display: block; width: 18px; height: 2px; margin: 5px auto; background: #4a3745; transition: transform .18s ease; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 44px 0 50px;
  background:
    radial-gradient(560px 320px at 12% 0%, rgba(201, 167, 255, .3), transparent 70%),
    radial-gradient(620px 340px at 88% 8%, rgba(255, 123, 169, .26), transparent 72%),
    linear-gradient(180deg, #fff6fa, #fffafc 72%);
  border-bottom: 1px solid var(--line);
}
.hero-copy { max-width: 640px; margin: 0 auto; text-align: center; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 12px;
  padding: 3px 12px;
  border: 1px solid #ffd3e2;
  border-radius: 999px;
  background: #fff;
  color: #856274;
  font-size: 11px;
  letter-spacing: .8px;
}
.hero-kicker b { color: var(--pink-deep); font-family: var(--mono); font-size: 9.5px; letter-spacing: 1.2px; }
.hero h1 {
  margin: 0;
  color: #35243a;
  font-size: clamp(46px, 7.4vw, 84px);
  font-weight: 900;
  letter-spacing: -.03em;
  line-height: 1;
}
.hero-subtitle {
  margin: 16px 0 0;
  color: var(--pink-deep);
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 900;
  letter-spacing: -.2px;
}
.hero-lead { max-width: 540px; margin: 11px auto 0; color: var(--muted); font-size: 14.5px; }
.hero-actions { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 18px; margin-top: 24px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 12px;
  padding: 0 28px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 900;
  transition: transform .18s ease, filter .18s ease;
}
.button-primary { background: linear-gradient(120deg, var(--pink), #ff9cc0 60%, var(--lilac)); color: #fff; box-shadow: 0 14px 28px rgba(224, 84, 138, .22); }
.button-primary:hover { filter: brightness(.96); transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 34px; font-size: 15px; }
.text-link { color: #6b4f5f; border-bottom: 1px dashed #e3b6c9; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 4px; color: var(--pink-deep); }

.duo-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 62px minmax(0, 1fr);
  align-items: center;
  gap: clamp(10px, 2vw, 22px);
  max-width: 780px;
  margin: clamp(30px, 4.4vw, 44px) auto 0;
}
.duo-card {
  position: relative;
  margin: 0;
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 20px 36px rgba(158, 91, 128, .16);
  overflow: hidden;
}
.duo-card-left { transform: rotate(-2.4deg); border: 2px solid #ffd5e3; }
.duo-card-right { transform: rotate(2.4deg); border: 2px solid #e3d4ff; }
.duo-card img { width: 100%; height: auto; aspect-ratio: 4 / 5; object-fit: cover; object-position: center 22%; }
.duo-card figcaption {
  position: absolute;
  left: 50%;
  bottom: 12px;
  padding: 4px 13px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .94);
  color: #6c4b5c;
  font-size: 11px;
  font-weight: 800;
  white-space: nowrap;
  transform: translateX(-50%);
}
.heart-divider { position: relative; display: block; width: 62px; height: 56px; }
.heart-divider i {
  position: absolute;
  top: 8px;
  left: 50%;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--pink), var(--lilac));
  transform: translateX(-50%) rotate(-45deg);
  border-radius: 0 0 6px 0;
}
.heart-divider i::before,
.heart-divider i::after {
  position: absolute;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  content: "";
  background: inherit;
}
.heart-divider i::before { top: -20px; left: 0; }
.heart-divider i::after { top: 0; left: 20px; }

.sugar-meter {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 560px;
  margin: 30px auto 0;
  padding: 12px 18px;
  border: 1px solid #ffd9e6;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 8px 18px rgba(224, 84, 138, .08);
}
.sugar-label { flex: none; color: #8a6577; font-size: 11.5px; font-weight: 800; letter-spacing: .6px; }
.sugar-track { position: relative; flex: 1 1 auto; min-width: 60px; height: 8px; border-radius: 999px; background: #fdeaf2; overflow: hidden; }
.sugar-track i { position: absolute; inset: 0 auto 0 0; border-radius: 999px; background: linear-gradient(90deg, #ffb2cb, var(--pink) 55%, var(--lilac)); }
.sugar-value { flex: none; color: var(--pink-deep); font-family: var(--mono); font-size: 12px; }

/* features */
.features { padding: 66px 0 70px; }
.section-heading { margin-bottom: 28px; }
.section-heading h2, .download h2 { margin: 0; font-size: clamp(25px, 2.9vw, 35px); font-weight: 900; letter-spacing: -.8px; line-height: 1.3; }
.section-heading > p:last-child { max-width: 620px; margin: 10px 0 0; color: var(--muted); font-size: 14px; }
.section-heading-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(200px, 290px); align-items: end; gap: 26px; }
.section-heading-split > p:last-child { margin: 0 0 5px; }
.feature-list { display: grid; gap: 0; padding: 0; margin: 0; list-style: none; border-top: 1px solid var(--line); }
.feature-row {
  display: grid;
  grid-template-columns: 66px minmax(0, 1fr);
  align-items: start;
  gap: 18px;
  padding: 20px 6px;
  border-bottom: 1px solid var(--line);
  transition: background .18s ease;
}
.feature-row:hover { background: #fff4f8; }
.feature-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #fff0f6;
  color: var(--pink-deep);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
}
.feature-row h3 { margin: 2px 0 5px; font-size: 17px; font-weight: 900; }
.feature-row p { margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.8; }

/* shots */
.shots { padding: 66px 0 74px; background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.shot-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.shot-card { margin: 0; border: 1px solid #f6dde8; border-radius: 18px; background: #fff; box-shadow: 0 12px 24px rgba(158, 91, 128, .08); overflow: hidden; }
.shot-card img { width: 100%; height: auto; aspect-ratio: 3 / 4; object-fit: cover; object-position: center top; }
.shot-card figcaption { display: flex; align-items: baseline; gap: 9px; padding: 12px 16px 13px; border-top: 1px solid #f6e2ec; }
.shot-card figcaption b { color: var(--pink-deep); font-family: var(--mono); font-size: 10px; }
.shot-card figcaption span { display: flex; flex-direction: column; font-size: 13px; font-weight: 800; line-height: 1.4; }
.shot-card figcaption small { color: var(--muted); font-size: 10.5px; font-weight: 500; }

/* faq */
.faq { padding: 66px 0 72px; }
.faq-layout { display: grid; grid-template-columns: minmax(0, .74fr) minmax(0, 1.26fr); gap: clamp(22px, 4vw, 52px); }
.faq-heading { position: sticky; top: calc(var(--header-height) + 24px); align-self: start; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 16px 4px; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary h3 { margin: 0; font-size: 15px; font-weight: 900; }
.faq-list summary i { position: relative; flex: none; width: 22px; height: 22px; border-radius: 50%; background: #fff0f6; }
.faq-list summary i::before,
.faq-list summary i::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 9px;
  height: 1.5px;
  content: "";
  background: var(--pink-deep);
  transform: translate(-50%, -50%);
}
.faq-list summary i::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform .2s ease; }
.faq-list details[open] summary i::after { transform: translate(-50%, -50%) rotate(0); }
.faq-list details p { padding: 0 26px 16px 4px; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.85; }

/* reviews: single-column timeline */
.reviews { padding: 66px 0 74px; background: var(--bg-2); border-top: 1px solid var(--line); }
.review-list { position: relative; display: grid; gap: 14px; padding: 0 0 0 26px; margin: 0; list-style: none; border-left: 2px solid #f7cfdf; }
.review-card { position: relative; display: grid; grid-template-columns: 132px minmax(0, 1fr); gap: 16px; padding: 16px 18px; border: 1px solid #f6dde8; border-radius: 14px; background: #fff; }
.review-card::before {
  position: absolute;
  top: 24px;
  left: -33px;
  width: 10px;
  height: 10px;
  border: 2px solid #fff;
  border-radius: 50%;
  content: "";
  background: var(--pink);
}
.review-meta { display: flex; flex-direction: column; gap: 4px; }
.review-meta b { color: #4a3543; font-size: 13px; font-weight: 900; }
.review-meta time { color: #a08b98; font-family: var(--mono); font-size: 9.5px; line-height: 1.5; }
.review-card p { margin: 0; color: #55444f; font-size: 13px; line-height: 1.8; }

/* steps */
.steps { padding: 64px 0 70px; border-top: 1px solid var(--line); }
.step-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; padding: 0; margin: 0; list-style: none; }
.step-list li { padding: 22px 20px; border-radius: 16px; background: linear-gradient(165deg, #fff4f9, #fdf2ff); border: 1px solid #f7dcea; }
.step-list span { display: block; margin-bottom: 9px; color: var(--lilac); font-family: var(--mono); font-size: 24px; font-weight: 700; line-height: 1; }
.step-list h3 { margin: 0 0 6px; font-size: 16.5px; font-weight: 900; }
.step-list p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* download */
.download { padding: 26px 0 40px; }
.download-inner {
  text-align: center;
  padding: clamp(34px, 5vw, 58px) clamp(22px, 5vw, 60px);
  border-radius: 26px;
  background:
    radial-gradient(380px 220px at 84% 0%, rgba(255, 255, 255, .6), transparent 70%),
    linear-gradient(128deg, #ffe1ec, #ffd7e8 42%, #ecdcff);
  border: 1px solid #fbd3e3;
}
.download .eyebrow { color: #a8557a; }
.download h2 { max-width: 640px; margin: 0 auto; color: #40283c; }
.download-inner > p { max-width: 520px; margin: 12px auto 22px; color: #7d5d6d; font-size: 14px; }
.download-notes { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 22px; padding: 20px 0 0; margin: 24px 0 0; border-top: 1px solid #f3c8da; list-style: none; }
.download-notes li { color: #8c6274; font-family: var(--mono); font-size: 11px; }
.download-notes li::before { margin-right: 7px; content: "♡"; }

/* footer */
.site-footer { padding: 38px 0 48px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px 40px; align-items: start; }
.footer-brand strong { font-size: 18px; font-weight: 900; }
.footer-brand p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.footer-nav a { color: #6d5663; font-size: 12px; }
.footer-nav a:hover { color: var(--pink-deep); }
.footer-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.footer-meta p { margin: 0; }
.disclaimer { grid-column: 1 / -1; margin: 0; color: #9b8894; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1024px) {
  .duo-row { max-width: 640px; }
  .feature-row { grid-template-columns: 58px minmax(0, 1fr); gap: 14px; }
  .feature-no { width: 42px; height: 42px; }
}
@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    padding: 6px 24px 14px;
    border-bottom: 1px solid var(--line);
    background: #fff;
    box-shadow: 0 16px 26px rgba(120, 60, 90, .12);
  }
  .primary-nav.is-open { display: block; }
  .primary-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .primary-nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .faq-layout { grid-template-columns: 1fr; gap: 20px; }
  .faq-heading { position: static; }
  .duo-row { grid-template-columns: minmax(0, 1fr) 48px minmax(0, 1fr); }
  .heart-divider { width: 48px; }
  .download-inner { text-align: left; }
  .download h2, .download-inner > p { margin-left: 0; margin-right: 0; }
  .download-notes { justify-content: flex-start; }
}
@media (max-width: 600px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .hero h1 { font-size: clamp(40px, 13vw, 58px); }
  .hero-lead { font-size: 14px; }
  .duo-row { grid-template-columns: minmax(0, 1fr) 38px minmax(0, 1fr); gap: 8px; }
  .heart-divider { width: 38px; height: 44px; }
  .heart-divider i { width: 26px; height: 26px; }
  .heart-divider i::before, .heart-divider i::after { width: 26px; height: 26px; }
  .heart-divider i::before { top: -13px; }
  .heart-divider i::after { left: 13px; }
  .duo-card { border-radius: 16px; }
  .duo-card figcaption { font-size: 10px; padding: 3px 9px; bottom: 8px; }
  .sugar-meter { gap: 9px; padding: 10px 14px; }
  .shot-grid { grid-template-columns: 1fr; gap: 12px; }
  .feature-row { grid-template-columns: 1fr; gap: 8px; }
  .feature-no { width: 36px; height: 36px; font-size: 11px; }
  .review-list { padding-left: 18px; }
  .review-card { grid-template-columns: 1fr; gap: 6px; }
  .review-card::before { left: -25px; }
  .review-meta { flex-direction: row; align-items: baseline; justify-content: space-between; flex-wrap: wrap; }
  .step-list { grid-template-columns: 1fr; }
  .section-heading-split { grid-template-columns: 1fr; gap: 8px; }
  .section-heading-split > p:last-child { margin: 0; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  .brand { font-size: 17px; gap: 7px; }
  .brand img { width: 30px; height: 30px; }
  .brand-tag { display: none; }
  .nav-actions { gap: 8px; }
  .nav-download { min-height: 34px; padding: 0 10px; font-size: 11px; gap: 5px; }
  .nav-download svg { width: 14px; height: 14px; }
  .menu-toggle { width: 34px; height: 34px; }
  .hero h1 { font-size: 38px; }
  .hero-subtitle { font-size: 16px; }
  .button { width: 100%; }
}