@charset "UTF-8";

:root {
  --cream: #FFF3E6;
  --cream-2: #FDE9D8;
  --card: #FFFBF5;
  --warm: #B23A48;
  --warm-soft: #D2707A;
  --ink: #3A2426;
  --muted: #7A6260;
  --line: rgba(178, 58, 72, .22);
  --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(--cream);
  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(--warm); outline-offset: 4px; }
.page-shell { width: min(calc(100% - 48px), var(--shell)); margin: 0 auto; }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 13px;
  color: var(--warm);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.4px;
  line-height: 1.4;
}
.eyebrow::before { width: 16px; height: 2px; content: ""; background: currentColor; }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 243, 230, .96);
  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: 20px; font-weight: 900; letter-spacing: .5px; }
.brand img { width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--line); object-fit: contain; background: #FFF9F2; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: var(--warm);
  color: var(--cream);
  font-size: 10px;
  font-style: normal;
  font-weight: 900;
}
.primary-nav { margin-left: auto; }
.primary-nav ul { display: flex; align-items: center; gap: clamp(12px, 1.8vw, 24px); padding: 0; margin: 0; list-style: none; }
.primary-nav a { display: block; padding: 7px 0; border-bottom: 2px solid transparent; color: var(--muted); font-size: 13px; font-weight: 700; }
.primary-nav a:hover { border-bottom-color: var(--warm); color: var(--warm); }
.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(--warm);
  border-radius: 999px;
  background: var(--warm);
  color: var(--cream);
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease;
}
.nav-download:hover { background: transparent; color: var(--warm); }
.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: transparent; cursor: pointer; }
.menu-toggle span { display: block; width: 18px; height: 2px; margin: 5px auto; background: var(--ink); 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;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(560px 320px at 50% -12%, rgba(178, 58, 72, .16), transparent 70%),
    linear-gradient(180deg, #FFEEDF 0%, var(--cream) 100%);
  text-align: center;
}
.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image: radial-gradient(circle, rgba(178, 58, 72, .1) 1px, transparent 1.4px);
  background-size: 26px 26px;
  mask-image: linear-gradient(180deg, #000, transparent 86%);
  pointer-events: none;
}
.hero-caps {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  padding: 22px 0 0;
  margin: 0;
  list-style: none;
}
.hero-caps a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 251, 245, .8);
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 800;
}
.hero-caps .is-active a { border-color: transparent; background: var(--warm); color: var(--cream); }
.hero-intro { position: relative; z-index: 2; max-width: 640px; margin: 0 auto; padding: 34px 0 0; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 14px;
  color: var(--warm);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.6px;
}
.hero-kicker b { padding: 3px 8px; border-radius: 999px; background: rgba(178, 58, 72, .14); color: var(--warm); font-size: 9.5px; font-weight: 900; letter-spacing: 1.2px; }
.hero h1 { margin: 0; font-size: clamp(40px, 6vw, 72px); font-weight: 900; letter-spacing: clamp(-1px, -.3vw, -2px); line-height: 1.1; }
.hero-subtitle { margin: 14px 0 0; color: var(--warm); font-size: clamp(17px, 1.9vw, 22px); font-weight: 800; line-height: 1.5; }
.hero-lead { max-width: 560px; margin: 12px 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, background .18s ease, color .18s ease;
}
.button-primary { background: var(--warm); color: var(--cream); box-shadow: 0 14px 28px rgba(178, 58, 72, .22); }
.button-primary:hover { background: #9C2F3C; transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 34px; font-size: 15px; }
.text-link { color: var(--muted); border-bottom: 1px dashed var(--line); font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 5px; color: var(--warm); }

.hero-cards {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 720px;
  margin: 34px auto 0;
}
.hero-card { padding: 10px 10px 0; border: 1px solid var(--line); border-radius: 14px; background: var(--card); box-shadow: 0 12px 26px rgba(178, 58, 72, .10); text-align: left; }
.card-cover { position: relative; display: flex; flex-direction: column; justify-content: flex-end; min-height: 118px; padding: 12px; border-radius: 9px; color: #FFF6EC; overflow: hidden; }
.card-cover span { position: absolute; top: 10px; left: 10px; padding: 1px 8px; border-radius: 999px; background: rgba(255, 246, 236, .22); font-size: 10.5px; font-weight: 800; }
.card-cover b { font-size: 15px; font-weight: 900; letter-spacing: .5px; }
.cover-a { background: linear-gradient(150deg, #C25A62, #8E2E3C); }
.cover-b { background: linear-gradient(150deg, #C98A5E, #9A4A38); }
.cover-c { background: linear-gradient(150deg, #6E7E8C, #3D4A56); }
.hero-card p { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 2px 10px; margin: 0; color: var(--muted); font-size: 11px; }
.hero-card p i { padding: 1px 7px; border: 1px solid var(--line); border-radius: 999px; color: var(--warm); font-style: normal; font-size: 10px; }

.senior-row {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px 22px;
  padding: 24px 0 34px;
  margin: 0;
  list-style: none;
}
.senior-row li { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-size: 11.5px; }
.senior-row i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(140deg, #F3C9BE, #D2707A);
  color: #5C2129;
  font-style: normal;
  font-size: 11px;
  font-weight: 900;
}
.senior-row b { color: var(--ink); font-size: 12px; font-weight: 800; }
.senior-row small { font-family: var(--mono); font-size: 10px; }

/* features */
.features { padding: 72px 0 76px; border-bottom: 1px solid var(--line); background: var(--cream-2); }
.section-heading { margin-bottom: 30px; }
.section-heading h2, .download h2 { margin: 0; font-size: clamp(24px, 2.8vw, 34px); font-weight: 900; letter-spacing: -.5px; line-height: 1.32; }
.section-heading > p:last-child { max-width: 620px; margin: 11px 0 0; color: var(--muted); font-size: 14px; }
.section-heading-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(190px, 290px); align-items: end; gap: 26px; }
.section-heading-split > p:last-child { margin: 0 0 4px; }
.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.feature-card { position: relative; padding: 24px 24px 22px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); }
.feature-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  margin-bottom: 10px;
  border-radius: 50%;
  background: rgba(178, 58, 72, .12);
  color: var(--warm);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
}
.feature-card h3 { margin: 0 0 6px; font-size: 17px; font-weight: 900; }
.feature-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* shots */
.shots { padding: 72px 0 78px; }
.shot-row {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(230px, 1fr);
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 6px;
  scroll-snap-type: x mandatory;
}
.shot-card { margin: 0; border: 1px solid var(--line); border-radius: 14px; background: var(--card); overflow: hidden; scroll-snap-align: start; }
.shot-card img { width: 100%; height: auto; aspect-ratio: 9 / 16; object-fit: cover; object-position: center 4%; }
.shot-card figcaption { display: flex; align-items: baseline; gap: 8px; padding: 11px 13px 12px; border-top: 1px solid var(--line); }
.shot-card figcaption b { color: var(--warm); 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: 70px 0 76px; border-top: 1px solid var(--line); background: var(--cream-2); }
.faq-layout { display: grid; grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); gap: clamp(24px, 4vw, 52px); }
.faq-heading { position: sticky; top: calc(var(--header-height) + 26px); align-self: start; }
.faq-list { border-top: 1px solid var(--warm); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 17px 0; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary h3 { margin: 0; font-size: 15.5px; font-weight: 900; }
.faq-list summary i { position: relative; flex: none; width: 22px; height: 22px; border: 1px solid var(--line); border-radius: 50%; background: var(--card); }
.faq-list summary i::before,
.faq-list summary i::after { position: absolute; top: 50%; left: 50%; width: 9px; height: 1.5px; content: ""; background: var(--warm); 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 17px 0; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.88; }

/* reviews */
.reviews { padding: 72px 0 78px; }
.review-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; padding: 0; margin: 0; list-style: none; }
.review-card { padding: 18px 18px 17px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); }
.review-meta { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 5px; padding-bottom: 8px; margin-bottom: 8px; border-bottom: 1px dashed var(--line); }
.review-meta b { color: var(--warm); font-size: 13px; font-weight: 900; }
.review-meta time { color: #A08A86; font-family: var(--mono); font-size: 10px; }
.review-card p { margin: 0; color: var(--muted); font-size: 12.8px; line-height: 1.8; }

/* steps */
.steps { padding: 68px 0 74px; border-top: 1px solid var(--line); background: var(--cream-2); }
.step-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; padding: 0; margin: 0; list-style: none; counter-reset: step; }
.step-list li { padding: 20px 20px 18px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); }
.step-list span { display: block; margin-bottom: 8px; color: var(--warm-soft); font-family: var(--mono); font-size: 20px; 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: 12.8px; line-height: 1.78; }

/* download */
.download { padding: 26px 0; }
.download-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px 36px;
  padding: 44px clamp(24px, 4.6vw, 54px);
  border-radius: 18px;
  background:
    radial-gradient(380px 220px at 92% 4%, rgba(255, 243, 230, .22), transparent 70%),
    linear-gradient(118deg, #B23A48, #8E2A38 88%);
  color: var(--cream);
}
.download .eyebrow { color: rgba(255, 243, 230, .74); }
.download h2 { max-width: 560px; color: var(--cream); }
.download-copy > p { max-width: 520px; margin: 11px 0 0; color: rgba(255, 243, 230, .84); font-size: 14px; }
.download .button-primary { background: var(--cream); color: var(--warm); border-color: var(--cream); box-shadow: 0 14px 26px rgba(70, 20, 26, .26); }
.download .button-primary:hover { background: #FFF9F0; }
.download-notes { display: flex; flex-wrap: wrap; gap: 8px 20px; padding: 16px 0 0; margin: 18px 0 0; border-top: 1px solid rgba(255, 243, 230, .28); list-style: none; }
.download-notes li { color: rgba(255, 243, 230, .86); font-family: var(--mono); font-size: 11px; }
.download-notes li::before { margin-right: 7px; content: "·"; }

/* footer */
.site-footer { padding: 42px 0 50px; 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 22px; }
.footer-nav a { color: var(--muted); font-size: 12px; }
.footer-nav a:hover { color: var(--warm); }
.footer-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.footer-meta p { margin: 0; }
.footer-meta a { color: var(--muted); }
.disclaimer { grid-column: 1 / -1; margin: 0; color: #A08A86; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1024px) {
  .review-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    padding: 8px 24px 16px;
    border-bottom: 1px solid var(--line);
    background: var(--cream);
    box-shadow: 0 16px 26px rgba(58, 36, 38, .16);
  }
  .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); }
  .hero-cards { max-width: 560px; gap: 10px; }
  .card-cover { min-height: 96px; }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-heading { position: static; }
  .step-list { grid-template-columns: 1fr; }
  .download-inner { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .hero h1 { font-size: clamp(34px, 10vw, 46px); }
  .hero-subtitle { font-size: 16px; }
  .hero-lead { font-size: 14px; }
  .hero-caps a { min-height: 29px; padding: 0 13px; font-size: 11.5px; }
  .hero-cards { grid-template-columns: 1fr; max-width: 320px; }
  .card-cover { min-height: 86px; }
  .feature-grid { grid-template-columns: 1fr; }
  .review-list { grid-template-columns: 1fr; }
  .shot-row { grid-auto-columns: 78%; }
  .section-heading-split { grid-template-columns: 1fr; gap: 10px; }
  .section-heading-split > p:last-child { margin: 0; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  .brand { font-size: 16px; gap: 6px; }
  .brand img { width: 30px; height: 30px; }
  .brand-tag { display: none; }
  .nav-actions { gap: 8px; }
  .nav-download { min-height: 34px; padding: 0 9px; font-size: 11px; gap: 5px; }
  .nav-download svg { width: 14px; height: 14px; }
  .menu-toggle { width: 34px; height: 34px; }
  .hero h1 { font-size: 32px; }
  .button { width: 100%; }
  .senior-row { gap: 8px 14px; padding-bottom: 28px; }
  .shot-row { grid-auto-columns: 86%; }
}