@charset "UTF-8";

:root {
  --bg: #1A1015;
  --bg-2: #221620;
  --panel: #2A1B22;
  --line: #3A2630;
  --ink: #F8ECF1;
  --muted: #BCA2AC;
  --rose: #E7336E;
  --rose-soft: #FF7FA4;
  --cream: #F3E2E7;
  --shell: 1180px;
  --header-height: 68px;
  --mono: "JetBrains Mono", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 16px); }
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(--rose-soft); outline-offset: 4px; }
.page-shell { width: min(calc(100% - 48px), var(--shell)); margin: 0 auto; }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 13px;
  color: var(--rose-soft);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  line-height: 1.4;
}
.eyebrow::before { width: 22px; height: 1px; content: ""; background: currentColor; }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--line);
  background: rgba(26, 16, 21, .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: 20px; font-weight: 900; letter-spacing: -.3px; }
.brand img { width: 36px; height: 36px; border: 1px solid var(--line); border-radius: 8px; object-fit: contain; background: #2A1B22; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 27px;
  height: 19px;
  padding: 0 4px;
  border-radius: 4px;
  background: transparent;
  border: 1px solid var(--rose);
  color: var(--rose-soft);
  font-family: var(--mono);
  font-size: 9.5px;
  font-style: normal;
  font-weight: 900;
}
.primary-nav { margin-left: auto; }
.primary-nav ul { display: flex; align-items: center; gap: clamp(11px, 1.8vw, 24px); padding: 0; margin: 0; list-style: none; }
.primary-nav a { display: block; padding: 6px 0; color: #C6ADB7; font-size: 13px; font-weight: 700; border-bottom: 1px solid transparent; }
.primary-nav a:hover { border-bottom-color: var(--rose); color: #fff; }
.nav-actions { display: flex; align-items: center; flex: none; gap: 10px; }
.nav-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 17px;
  border: 1px solid var(--rose);
  border-radius: 4px;
  background: var(--rose);
  color: #fff;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  transform: skewX(-6deg);
  transition: background .18s ease, color .18s ease;
}
.nav-download span { display: block; transform: skewX(6deg); }
.nav-download:hover { background: transparent; color: var(--rose-soft); }
.menu-toggle { display: none; width: 40px; height: 40px; padding: 0; border: 1px solid var(--line); border-radius: 4px; background: transparent; cursor: pointer; }
.menu-toggle span { display: block; width: 17px; height: 2px; margin: 5px auto; background: var(--ink); }
.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 380px at 82% 6%, rgba(231, 51, 110, .26), transparent 72%),
    radial-gradient(420px 300px at 2% 92%, rgba(231, 51, 110, .1), transparent 70%),
    linear-gradient(180deg, #251620 0%, var(--bg) 100%);
}
.age-corner {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 82px;
  height: 62px;
  gap: 2px;
  border-radius: 0 0 0 10px;
  background: linear-gradient(135deg, #F04980, var(--rose));
  color: #fff;
  font-family: var(--mono);
  font-size: 21px;
  font-weight: 900;
  line-height: 1;
}
.age-corner b { font-family: inherit; font-size: 8.5px; font-weight: 700; letter-spacing: .5px; }
.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(280px, .94fr);
  align-items: center;
  gap: clamp(22px, 3.6vw, 54px);
  padding: 62px 0 30px;
}
.hero-copy { min-width: 0; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 5px 12px;
  margin: 0 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #D3B9C3;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 1.2px;
}
.hero h1 {
  margin: 0;
  font-size: clamp(50px, 7.4vw, 92px);
  font-weight: 900;
  letter-spacing: clamp(-2px, -.4vw, -4px);
  line-height: .96;
  background: linear-gradient(96deg, #fff 6%, var(--rose-soft) 88%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-subtitle {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--rose);
  color: var(--cream);
  font-size: clamp(17px, 1.9vw, 23px);
  font-weight: 800;
  line-height: 1.45;
}
.hero-lead { max-width: 520px; margin: 15px 0 0; color: var(--muted); font-size: 14.5px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; margin-top: 26px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 12px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 900;
  transition: background .18s ease, color .18s ease, transform .18s ease;
}
.button svg { width: 18px; height: 18px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.button-primary { background: var(--rose); color: #fff; box-shadow: 0 14px 28px rgba(231, 51, 110, .28); }
.button-primary:hover { background: #F04980; transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 32px; font-size: 15px; }
.text-link { color: #D6BBC5; border-bottom: 1px dashed #5C3A46; font-size: 13px; font-weight: 800; }
.text-link span { margin-left: 4px; color: var(--rose-soft); }
.hero-note { margin: 18px 0 0; color: #8E737E; font-size: 11.5px; }

.hero-stack {
  position: relative;
  justify-self: end;
  width: min(100%, 400px);
  height: clamp(300px, 33vw, 372px);
}
.stack-card {
  position: absolute;
  top: 0;
  width: 55%;
  margin: 0;
  border: 3px solid #3A2630;
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 18px 36px rgba(0, 0, 0, .55);
  overflow: hidden;
  transition: transform .25s ease;
}
.stack-card img { width: 100%; height: auto; aspect-ratio: 3 / 4.35; object-fit: cover; object-position: center 18%; }
.stack-card figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 3px 9px;
  background: var(--rose);
  color: #fff;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
}
.stack-card-a { left: 0; z-index: 3; transform: rotate(-6deg); }
.stack-card-b { left: 25%; z-index: 2; top: 16px; transform: rotate(1.5deg); }
.stack-card-c { right: 0; z-index: 1; top: 30px; transform: rotate(8deg); }
.hero-stack:hover .stack-card-a { transform: rotate(-9deg) translateY(-6px); }
.hero-stack:hover .stack-card-c { transform: rotate(11deg) translateY(-4px); }

.update-clock {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px 26px;
  padding: 14px 20px;
  margin: 0 0 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: linear-gradient(90deg, rgba(231, 51, 110, .14), rgba(42, 27, 34, .7) 42%);
}
.clock-face {
  position: relative;
  flex: none;
  width: 34px;
  height: 34px;
  border: 2px solid var(--rose);
  border-radius: 50%;
}
.clock-face::before {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1px;
  height: 9px;
  content: "";
  background: var(--cream);
  transform-origin: bottom center;
  transform: translate(-50%, -100%) rotate(38deg);
}
.clock-face b { position: absolute; inset: 50% auto auto 50%; width: 3px; height: 3px; margin: -1.5px 0 0 -1.5px; border-radius: 50%; background: var(--rose-soft); }
.clock-face i { position: absolute; top: 6px; left: 50%; width: 1px; height: 5px; background: #6B4653; }
.clock-text { margin: 0; }
.clock-text b { display: block; font-family: var(--mono); font-size: 14px; letter-spacing: .5px; }
.clock-text span { display: block; color: var(--muted); font-size: 11.5px; }
.clock-week { display: flex; gap: 5px; padding: 0; margin: 0 0 0 auto; list-style: none; }
.clock-week li {
  display: grid;
  place-items: center;
  width: 25px;
  height: 25px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: #8E737E;
  font-size: 10.5px;
}
.clock-week .is-now { border-color: transparent; background: var(--rose); color: #fff; font-weight: 900; }

/* features: 4 columns */
.features { padding: 68px 0 74px; border-bottom: 1px solid var(--line); background: var(--bg-2); }
.section-heading { margin-bottom: 32px; }
.section-heading h2, .download h2 { margin: 0; font-size: clamp(24px, 2.7vw, 34px); font-weight: 900; letter-spacing: -.6px; line-height: 1.32; }
.section-heading > p:last-child { max-width: 600px; margin: 11px 0 0; color: var(--muted); font-size: 13.5px; }
.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 4px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.feature-card {
  position: relative;
  padding: 26px 20px 22px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--rose);
  border-radius: 6px;
  background: var(--panel);
}
.feature-card:nth-child(2) { border-top-color: #B8527B; }
.feature-card:nth-child(3) { border-top-color: #8C4A63; }
.feature-card:nth-child(4) { border-top-color: #5F3A47; }
.feature-no {
  display: block;
  margin-bottom: 14px;
  color: var(--rose-soft);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.4px;
}
.feature-card h3 { margin: 0 0 7px; font-size: 16.5px; font-weight: 900; }
.feature-card p { margin: 0; color: var(--muted); font-size: 12.5px; line-height: 1.85; }

/* shots: 2 x 2 */
.shots { padding: 70px 0 78px; }
.shot-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.shot-card { position: relative; margin: 0; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); overflow: hidden; }
.shot-card img { width: 100%; height: auto; aspect-ratio: 4 / 5; object-fit: cover; object-position: center 22%; }
.shot-card:nth-child(1) img { object-position: center 40%; }
.shot-card figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 26px 14px 13px;
  background: linear-gradient(180deg, transparent, rgba(26, 16, 21, .94) 52%);
}
.shot-card figcaption b { color: var(--rose-soft); font-family: var(--mono); font-size: 10px; }
.shot-card figcaption span { display: flex; flex-direction: column; font-size: 13px; font-weight: 800; line-height: 1.35; }
.shot-card figcaption small { color: var(--muted); font-size: 10.5px; font-weight: 500; }

/* faq */
.faq { padding: 68px 0 76px; border-top: 1px solid var(--line); background: var(--bg-2); }
.faq-layout { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(24px, 4vw, 54px); }
.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: 17px 0; 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: 20px; height: 20px; border-radius: 3px; background: rgba(231, 51, 110, .16); }
.faq-list summary i::before,
.faq-list summary i::after { position: absolute; top: 50%; left: 50%; width: 9px; height: 1.5px; content: ""; background: var(--rose-soft); 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(0deg); }
.faq-list details p { padding: 0 28px 17px 0; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.85; }

/* reviews: single column */
.reviews { padding: 70px 0 78px; }
.review-list { display: grid; grid-template-columns: 1fr; gap: 10px; max-width: 880px; padding: 0; margin: 0; list-style: none; }
.review-card {
  display: grid;
  grid-template-columns: 168px minmax(0, 1fr);
  align-items: baseline;
  gap: 18px;
  padding: 17px 22px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
}
.review-meta { display: flex; flex-direction: column; gap: 2px; padding-right: 18px; border-right: 1px solid var(--line); }
.review-meta b { color: var(--rose-soft); font-size: 13px; font-weight: 900; }
.review-meta time { color: #8E737E; font-family: var(--mono); font-size: 10px; }
.review-card p { margin: 0; color: #D6C2CA; font-size: 13px; line-height: 1.8; }

/* steps */
.steps { padding: 66px 0 72px; border-top: 1px solid var(--line); background: var(--bg-2); }
.step-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; padding: 0; margin: 0; list-style: none; }
.step-list li { padding: 22px 20px; border: 1px solid var(--line); border-radius: 6px; background: rgba(42, 27, 34, .66); }
.step-list span { display: block; margin-bottom: 9px; color: var(--rose-soft); font-family: var(--mono); font-size: 21px; font-weight: 700; line-height: 1; }
.step-list h3 { margin: 0 0 6px; font-size: 16px; font-weight: 900; }
.step-list p { margin: 0; color: var(--muted); font-size: 12.5px; line-height: 1.8; }

/* download */
.download { padding: 22px 0; }
.download-inner {
  max-width: 880px;
  margin: 0 auto;
  padding: 46px clamp(22px, 5vw, 54px) 40px;
  border-radius: 8px;
  background:
    radial-gradient(360px 220px at 92% 4%, rgba(255, 255, 255, .18), transparent 70%),
    linear-gradient(124deg, #E7336E, #A81C4E 90%);
  color: #fff;
}
.download .eyebrow { color: #FFD3E1; }
.download h2 { max-width: 560px; color: #fff; }
.download-inner > p { max-width: 500px; margin: 12px 0 22px; color: #FFD3E1; font-size: 13.5px; }
.download .button-primary { background: #241017; color: #fff; box-shadow: 0 14px 26px rgba(60, 8, 24, .3); }
.download .button-primary:hover { background: #3A1A24; }
.download-notes { display: flex; flex-wrap: wrap; gap: 7px 20px; padding: 18px 0 0; margin: 24px 0 0; border-top: 1px solid rgba(255, 255, 255, .3); list-style: none; }
.download-notes li { color: #FFE1EA; font-family: var(--mono); font-size: 11px; }
.download-notes li::before { margin-right: 7px; content: "◆"; font-size: 8px; vertical-align: 1px; }

/* 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: 17px; font-weight: 900; }
.footer-brand p { margin: 3px 0 0; color: var(--muted); font-size: 12px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.footer-nav a { color: #C6ADB7; font-size: 12px; }
.footer-nav a:hover { color: var(--rose-soft); }
.footer-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; 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: #8E737E; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) 300px; gap: 22px; }
  .feature-grid { 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: 6px 24px 14px;
    border-bottom: 1px solid var(--line);
    background: var(--bg);
    box-shadow: 0 14px 24px rgba(0, 0, 0, .5);
  }
  .primary-nav.is-open { display: block; }
  .primary-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .primary-nav a { padding: 11px 0; border-bottom: 1px solid var(--line); }
  .hero-grid { grid-template-columns: 1fr; padding: 46px 0 22px; }
  .hero-stack { justify-self: start; width: min(100%, 320px); height: 340px; margin-top: 6px; }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-heading { position: static; }
  .review-card { grid-template-columns: 1fr; gap: 7px; }
  .review-meta { flex-direction: row; align-items: baseline; gap: 10px; padding: 0 0 7px; border-right: 0; border-bottom: 1px dashed var(--line); }
  .step-list { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .hero h1 { font-size: clamp(44px, 13vw, 60px); }
  .hero-lead { font-size: 14px; }
  .age-corner { width: 66px; height: 52px; font-size: 17px; border-radius: 0 0 0 8px; }
  .age-corner b { font-size: 7.5px; }
  .feature-grid { grid-template-columns: 1fr; }
  .shot-grid { grid-template-columns: 1fr; }
  .clock-week { margin-left: 0; }
  .section-heading-split { grid-template-columns: 1fr; gap: 9px; }
  .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: 28px; height: 28px; }
  .brand-tag { display: none; }
  .nav-download { min-height: 33px; padding: 0 9px; font-size: 11px; }
  .menu-toggle { width: 33px; height: 33px; }
  .hero h1 { font-size: 40px; }
  .hero-subtitle { font-size: 15.5px; }
  .button { width: 100%; }
  .hero-stack { width: 260px; height: 300px; }
}