@charset "UTF-8";

:root {
  --bg: #0a0a0c;
  --bg-2: #101014;
  --panel: #141419;
  --line: #26262e;
  --ink: #f2f2f5;
  --muted: #9a9aa8;
  --pink: #ff2e93;
  --pink-soft: rgba(255, 46, 147, .16);
  --shell: 1160px;
  --header-height: 72px;
  --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); outline-offset: 4px; }
.page-shell { width: min(calc(100% - 48px), var(--shell)); margin: 0 auto; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  color: var(--pink);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.4px;
  line-height: 1.4;
}
.eyebrow::before { width: 22px; height: 2px; content: ""; background: var(--pink); box-shadow: 0 0 10px rgba(255, 46, 147, .8); }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--line);
  background: rgba(10, 10, 12, .94);
  backdrop-filter: blur(14px);
}
.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: 20px;
}
.brand { display: inline-flex; align-items: center; flex: none; gap: 10px; font-size: 20px; font-weight: 900; letter-spacing: .4px; }
.brand img { width: 38px; height: 38px; border: 1px solid #34343e; border-radius: 4px; object-fit: contain; background: #000; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 20px;
  border-radius: 2px;
  background: var(--pink);
  color: #0a0a0c;
  font-family: var(--mono);
  font-size: 9.5px;
  font-style: normal;
  font-weight: 900;
  letter-spacing: .5px;
}
.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: 1px solid transparent; color: #b6b6c2; font-size: 13px; font-weight: 700; }
.primary-nav a:hover { border-bottom-color: var(--pink); 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: 42px;
  gap: 8px;
  padding: 0 18px;
  border: 1px solid var(--pink);
  border-radius: 2px;
  background: var(--pink);
  color: #0a0a0c;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  box-shadow: 0 0 22px rgba(255, 46, 147, .35);
  transition: box-shadow .2s ease, background .2s ease;
}
.nav-download:hover { background: #ff5aa6; box-shadow: 0 0 30px rgba(255, 46, 147, .6); }
.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: 3px; 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: centered title with mirrored vertical rails */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(760px 420px at 50% -12%, rgba(255, 46, 147, .2), transparent 70%),
    linear-gradient(180deg, #0d0d12 0%, #0a0a0c 100%);
}
.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image: linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px), linear-gradient(180deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(60% 60% at 50% 35%, #000 0%, transparent 100%);
  pointer-events: none;
}
.hero-poster { position: absolute; inset: 0; margin: 0; pointer-events: none; }
.rail {
  position: absolute;
  top: 42%;
  color: rgba(255, 46, 147, .62);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .46em;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  white-space: nowrap;
}
.rail-left { left: 22px; transform: translateY(-50%); }
.rail-right { right: 22px; transform: translateY(-50%) rotate(180deg); }
.hero-grid { position: relative; z-index: 2; padding: 76px 0 34px; }
.hero-copy { max-width: 760px; margin: 0 auto; text-align: center; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: #b6b6c2;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 1.8px;
}
.hero-kicker b { padding: 3px 9px; border: 1px solid var(--pink); color: var(--pink); font-size: 9px; font-weight: 900; letter-spacing: 1.6px; }
.hero h1 {
  margin: 0;
  font-size: clamp(54px, 8.4vw, 116px);
  font-weight: 900;
  letter-spacing: clamp(-3px, -.6vw, -7px);
  line-height: 1;
  text-shadow: 0 0 34px rgba(255, 46, 147, .45), 0 0 90px rgba(255, 46, 147, .22);
}
.hero-subtitle { margin: 20px 0 0; color: var(--pink); font-size: clamp(17px, 1.9vw, 22px); font-weight: 800; }
.hero-lead { max-width: 560px; margin: 14px 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: 28px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 14px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 14px;
  font-weight: 900;
  transition: transform .18s ease, background .18s ease, box-shadow .18s ease;
}
.button-primary { background: var(--pink); color: #0a0a0c; box-shadow: 0 10px 34px rgba(255, 46, 147, .32); }
.button-primary:hover { background: #ff5aa6; transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 32px; font-size: 15px; }
.text-link { color: #b6b6c2; border-bottom: 1px dashed #3a3a45; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 5px; color: var(--pink); }
.hero-note { margin: 18px 0 0; color: #6f6f7d; font-size: 11.5px; letter-spacing: .3px; }

.week-strip {
  position: relative;
  z-index: 2;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #0d0d11;
}
.marquee-row { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); padding: 0; margin: 0; list-style: none; }
.marquee-row li { display: flex; align-items: center; gap: 8px; min-width: 0; padding: 13px 16px; border-right: 1px solid var(--line); }
.marquee-row li:last-child { border-right: 0; }
.marquee-row b { flex: none; color: var(--pink); font-family: var(--mono); font-size: 11px; letter-spacing: .4px; }
.marquee-row span { min-width: 0; color: #b6b6c2; font-size: 12px; white-space: nowrap; }
.led {
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #34343e;
  animation: led 5s linear infinite;
}
.marquee-row li:nth-child(2) .led { animation-delay: 1s; }
.marquee-row li:nth-child(3) .led { animation-delay: 2s; }
.marquee-row li:nth-child(4) .led { animation-delay: 3s; }
.marquee-row li:nth-child(5) .led { animation-delay: 4s; }
.strip-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--pink), rgba(255, 46, 147, 0));
  transform: scaleX(0);
  transform-origin: left center;
  animation: strip-sweep 5s linear infinite;
}
@keyframes led {
  0%, 12%, 100% { background: #34343e; box-shadow: none; }
  4% { background: var(--pink); box-shadow: 0 0 10px rgba(255, 46, 147, .9); }
}
@keyframes strip-sweep {
  0% { transform: scaleX(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: scaleX(1); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .led, .strip-progress { animation: none; }
  .strip-progress { transform: scaleX(.4); opacity: .6; }
}

/* features */
.features { padding: 72px 0 78px; border-bottom: 1px solid var(--line); background: var(--bg-2); }
.section-heading { margin-bottom: 30px; }
.section-heading h2, .download h2 { margin: 0; font-size: clamp(25px, 2.9vw, 36px); font-weight: 900; letter-spacing: -.8px; line-height: 1.28; }
.section-heading > p:last-child { max-width: 640px; margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.section-heading-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(200px, 300px); align-items: end; gap: 26px; }
.section-heading-split > p:last-child { margin: 0 0 5px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.feature-card { position: relative; padding: 24px 20px 26px; border: 1px solid var(--line); background: #121217; }
.feature-card::before { position: absolute; top: 0; left: 0; width: 38px; height: 2px; content: ""; background: var(--pink); box-shadow: 0 0 14px rgba(255, 46, 147, .6); }
.feature-no { display: block; margin-bottom: 12px; color: #6f6f7d; font-family: var(--mono); font-size: 12px; letter-spacing: 1.6px; }
.feature-card h3 { margin: 0 0 8px; font-size: 17px; font-weight: 900; }
.feature-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* shots: zigzag */
.shots { padding: 74px 0 82px; }
.sample-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); grid-auto-rows: clamp(200px, 25vw, 340px); gap: 14px; }
.sample-card { position: relative; margin: 0; grid-column: span 5; overflow: hidden; }
.sample-card.wide { grid-column: span 7; }
.sample-card img { width: 100%; height: 100%; object-fit: cover; object-position: center 22%; filter: saturate(1.04); }
.sample-card figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 14px;
  background: rgba(10, 10, 12, .82);
  border-top: 2px solid var(--pink);
  backdrop-filter: blur(6px);
}
.sample-card figcaption b { color: var(--pink); font-family: var(--mono); font-size: 10px; }
.sample-card figcaption span { display: flex; flex-direction: column; font-size: 13px; font-weight: 900; line-height: 1.35; }
.sample-card figcaption small { color: #a6a6b4; font-size: 10.5px; font-weight: 500; }

/* faq: two-column cards */
.faq { padding: 70px 0 78px; border-top: 1px solid var(--line); background: var(--bg-2); }
.faq-layout { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.faq-list { display: contents; }
.faq-list details { border: 1px solid var(--line); background: #121217; }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 16px 18px; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary h3 { margin: 0; font-size: 14.5px; font-weight: 900; }
.faq-list summary i { position: relative; flex: none; width: 16px; height: 16px; }
.faq-list summary i::before,
.faq-list summary i::after { position: absolute; top: 50%; left: 50%; width: 10px; height: 1.5px; content: ""; background: var(--pink); 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 18px 17px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.85; }

/* reviews: timeline */
.reviews { padding: 70px 0 80px; }
.review-list { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; padding: 0; margin: 0; list-style: none; border-left: 1px solid var(--line); }
.review-card { position: relative; display: grid; grid-template-columns: 168px minmax(0, 1fr); align-items: start; gap: 20px; padding: 16px 0 16px 22px; }
.review-card::before { position: absolute; top: 24px; left: -4.5px; width: 8px; height: 8px; content: ""; border-radius: 50%; background: var(--pink); box-shadow: 0 0 10px rgba(255, 46, 147, .8); }
.review-meta { display: flex; flex-direction: column; gap: 2px; }
.review-meta b { font-size: 13px; font-weight: 900; }
.review-meta time { color: #6f6f7d; font-family: var(--mono); font-size: 10px; }
.review-card p { margin: 0; color: #b6b6c2; font-size: 13px; line-height: 1.8; }

/* steps: wide rows */
.steps { padding: 68px 0 76px; border-top: 1px solid var(--line); background: var(--bg-2); }
.step-list { padding: 0; margin: 0; list-style: none; border-top: 1px solid var(--line); }
.step-list li { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.step-list h3 { margin: 0 0 4px; font-size: 18px; font-weight: 900; }
.step-list p { margin: 0; color: var(--muted); font-size: 13.5px; }
.step-list span { color: transparent; font-family: var(--mono); font-size: 40px; font-weight: 900; line-height: 1; -webkit-text-stroke: 1px var(--pink); }

/* download */
.download { padding: 70px 0 78px; }
.download-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 22px 32px;
  padding: 42px clamp(22px, 4.4vw, 52px);
  border: 1px solid #3a3a45;
  background:
    radial-gradient(460px 240px at 92% -20%, rgba(255, 46, 147, .22), transparent 70%),
    #121217;
  box-shadow: 0 0 60px rgba(255, 46, 147, .1) inset;
}
.download-copy { min-width: 0; }
.download h2 { max-width: 560px; }
.download-inner > .download-copy > p:not(.eyebrow) { margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.download-notes { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 8px 24px; padding: 16px 0 0; margin: 6px 0 0; border-top: 1px solid var(--line); list-style: none; }
.download-notes li { color: #9a9aa8; font-family: var(--mono); font-size: 11px; }
.download-notes li::before { margin-right: 7px; color: var(--pink); 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: #b6b6c2; font-size: 12px; }
.footer-nav a:hover { color: var(--pink); }
.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: #6f6f7d; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1100px) {
  .rail { display: none; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sample-card, .sample-card.wide { grid-column: span 6; }
  .sample-grid { grid-auto-rows: clamp(190px, 38vw, 320px); }
}
@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: #0d0d11;
    box-shadow: 0 16px 26px rgba(0, 0, 0, .6);
  }
  .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-grid { padding: 54px 0 30px; }
  .faq-layout { grid-template-columns: 1fr; }
  .review-card { grid-template-columns: 1fr; gap: 4px; }
  .review-meta { flex-direction: row; flex-wrap: wrap; align-items: baseline; gap: 8px; }
  .download-inner { grid-template-columns: 1fr; }
  .download .button { width: 100%; }
}
@media (max-width: 600px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .hero h1 { font-size: clamp(44px, 13.4vw, 60px); }
  .hero-lead { font-size: 14px; }
  .feature-grid { grid-template-columns: 1fr; }
  .sample-card, .sample-card.wide { grid-column: span 12; }
  .sample-grid { grid-auto-rows: auto; }
  .sample-card img { aspect-ratio: 4 / 3; height: auto; }
  .section-heading-split { grid-template-columns: 1fr; gap: 8px; }
  .section-heading-split > p:last-child { margin: 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .step-list span { font-size: 32px; }
  .marquee-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .marquee-row li { border-bottom: 1px solid var(--line); }
  .marquee-row li:nth-child(2n) { border-right: 0; }
  .marquee-row li:last-child { grid-column: 1 / -1; border-bottom: 0; }
}
@media (max-width: 480px) {
  .brand { font-size: 17px; gap: 8px; }
  .brand img { width: 32px; height: 32px; }
  .nav-download { min-height: 36px; padding: 0 10px; font-size: 11px; gap: 5px; }
  .nav-download svg { width: 15px; height: 15px; }
  .menu-toggle { width: 36px; height: 36px; }
  .hero-actions { gap: 14px; }
}
@media (max-width: 380px) {
  .brand { font-size: 16px; }
  .brand-tag { display: none; }
  .nav-actions { gap: 7px; }
  .nav-download { padding: 0 8px; font-size: 10.5px; }
  .hero h1 { font-size: 40px; }
  .hero-subtitle { font-size: 16px; }
  .button { width: 100%; }
  .marquee-row li { padding: 11px 18px; }
  .download-notes li { font-size: 10.5px; }
}