@charset "UTF-8";

:root {
  --bg: #0a0a12;
  --bg-2: #0d0d1a;
  --panel: #12121f;
  --line: #232338;
  --ink: #ecebf6;
  --muted: #9a9ab8;
  --indigo: #4b5bff;
  --indigo-soft: #7c88ff;
  --glow: rgba(75, 91, 255, .38);
  --shell: 1160px;
  --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) + 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(--indigo-soft); outline-offset: 4px; }
.page-shell { width: min(calc(100% - 44px), var(--shell)); margin: 0 auto; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 12px;
  color: var(--indigo-soft);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.2px;
  line-height: 1.4;
}
.eyebrow::before { width: 14px; height: 2px; content: ""; background: currentColor; }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--line);
  background: rgba(10, 10, 18, .93);
  backdrop-filter: blur(13px);
}
.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 44px), 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: -.2px; }
.brand img { width: 35px; height: 35px; border: 1px solid var(--line); border-radius: 50%; object-fit: contain; background: #12122a; }
.brand-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--indigo); box-shadow: 0 0 10px var(--indigo); }
.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: 7px 0; border-bottom: 2px solid transparent; color: #a5a5c4; font-size: 13px; font-weight: 700; }
.primary-nav a:hover { border-bottom-color: var(--indigo); 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;
  gap: 7px;
  padding: 0 16px;
  border: 1px solid var(--indigo);
  border-radius: 999px;
  background: var(--indigo);
  color: #fff;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  box-shadow: 0 6px 20px var(--glow);
  transition: background .18s ease, color .18s ease;
}
.nav-download:hover { background: transparent; color: var(--indigo-soft); }
.nav-download svg, .button svg { width: 17px; height: 17px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.menu-toggle { display: none; width: 40px; height: 40px; padding: 0; border: 1px solid var(--line); border-radius: 50%; background: transparent; cursor: pointer; }
.menu-toggle span { display: block; width: 16px; 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: starry sky + phone */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(700px 420px at 78% 4%, rgba(75, 91, 255, .3), transparent 70%),
    radial-gradient(420px 320px at 6% 92%, rgba(75, 91, 255, .12), transparent 72%),
    linear-gradient(180deg, #0b0b18 0%, var(--bg) 100%);
}
.stars {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 16%, #fff, transparent),
    radial-gradient(1.4px 1.4px at 26% 42%, rgba(255, 255, 255, .8), transparent),
    radial-gradient(1.8px 1.8px at 44% 12%, #dbe0ff, transparent),
    radial-gradient(1.2px 1.2px at 58% 34%, rgba(255, 255, 255, .7), transparent),
    radial-gradient(2px 2px at 72% 18%, #fff, transparent),
    radial-gradient(1.3px 1.3px at 88% 46%, rgba(219, 224, 255, .85), transparent),
    radial-gradient(1.5px 1.5px at 34% 72%, rgba(255, 255, 255, .6), transparent),
    radial-gradient(1.2px 1.2px at 64% 84%, rgba(255, 255, 255, .5), transparent),
    radial-gradient(1.7px 1.7px at 8% 58%, rgba(255, 255, 255, .55), transparent),
    radial-gradient(1.4px 1.4px at 92% 78%, rgba(255, 255, 255, .5), transparent);
  opacity: .85;
}
.hero::after {
  position: absolute;
  right: -8%;
  bottom: -34%;
  width: 560px;
  height: 560px;
  content: "";
  border-radius: 50%;
  background: radial-gradient(circle, rgba(75, 91, 255, .22), transparent 68%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(240px, .94fr);
  align-items: center;
  gap: clamp(24px, 4vw, 54px);
  padding: 56px 0 30px;
}
.hero-copy { min-width: 0; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 14px;
  color: #b7b7d4;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.5px;
}
.hero-kicker b {
  padding: 3px 7px;
  border-radius: 4px;
  background: var(--indigo);
  color: #fff;
  font-size: 9.5px;
  font-weight: 900;
  letter-spacing: 1.1px;
}
.hero h1 {
  margin: 0;
  font-size: clamp(48px, 7vw, 88px);
  font-weight: 900;
  letter-spacing: clamp(-2px, -.4vw, -4px);
  line-height: 1.04;
  text-shadow: 0 0 44px rgba(75, 91, 255, .55);
}
.hero-subtitle {
  margin: 12px 0 0;
  color: var(--indigo-soft);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 800;
  line-height: 1.4;
}
.hero-lead { max-width: 505px; margin: 12px 0 0; color: var(--muted); font-size: 14.5px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; margin-top: 24px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  gap: 12px;
  padding: 0 26px;
  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(--indigo); color: #fff; box-shadow: 0 12px 30px var(--glow); }
.button-primary:hover { background: #6371ff; transform: translateY(-2px); }
.button-large { min-height: 52px; padding: 0 32px; font-size: 15px; }
.text-link { color: #c3c3dd; border-bottom: 1px dashed #45456b; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 5px; color: var(--indigo-soft); }

.phone-wrap { min-width: 0; justify-self: center; }
.phone {
  position: relative;
  width: min(100%, 262px);
  padding: 12px 12px 16px;
  border: 1px solid #2b2b48;
  border-radius: 28px;
  background: linear-gradient(180deg, #151526, #0d0d1a);
  box-shadow: 0 26px 60px rgba(0, 0, 0, .62), 0 0 0 1px rgba(75, 91, 255, .16);
}
.phone-notch {
  position: absolute;
  top: 6px;
  left: 50%;
  width: 54px;
  height: 5px;
  border-radius: 999px;
  background: #2b2b48;
  transform: translateX(-50%);
}
.phone-shot { position: relative; margin: 12px 0 0; overflow: hidden; border-radius: 18px; }
.phone-shot::after {
  position: absolute;
  inset: 0;
  content: "";
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(10, 10, 18, .34), rgba(75, 91, 255, .12) 58%, rgba(10, 10, 18, .46));
  pointer-events: none;
}
.phone-shot img { width: 100%; height: auto; aspect-ratio: 9 / 16; object-fit: cover; object-position: center 4%; filter: brightness(.72) saturate(.78); }
.glow-bubble {
  position: absolute;
  left: -26px;
  bottom: 88px;
  padding: 10px 15px;
  margin: 0;
  border-radius: 15px 15px 15px 4px;
  background: linear-gradient(135deg, #4b5bff, #7d6bff);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .5px;
  box-shadow: 0 0 26px rgba(93, 108, 255, .7), 0 0 60px rgba(75, 91, 255, .35);
}
.glow-dot {
  position: absolute;
  right: -5px;
  top: 96px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #7c88ff;
  box-shadow: 0 0 14px #7c88ff, 0 0 30px rgba(124, 136, 255, .6);
}
.phone-note { margin: 13px 0 0; color: #8080a8; font-family: var(--mono); font-size: 10px; letter-spacing: 1.2px; text-align: center; }

.night-strip {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 16px;
  padding: 15px 20px;
  margin: 0 0 34px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(18, 18, 31, .78);
}
.clock { color: #fff; font-family: var(--mono); font-size: 26px; font-weight: 700; letter-spacing: 1px; line-height: 1; }
.clock-txt { color: #b9b9d6; font-size: 12.5px; }
.strip-line { flex: 1 1 90px; height: 1px; min-width: 40px; background: linear-gradient(90deg, rgba(75, 91, 255, .7), transparent); }
.strip-dots { display: inline-flex; gap: 7px; }
.strip-dots i { width: 7px; height: 7px; border-radius: 50%; background: #2f2f4d; }
.strip-dots i.on { background: var(--indigo); box-shadow: 0 0 10px var(--indigo); }
.strip-tip { color: #7c7ca4; font-size: 11px; }

/* features: 2x2 icon-left */
.features { padding: 70px 0 74px; 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(24px, 2.7vw, 34px); font-weight: 900; letter-spacing: -.8px; line-height: 1.3; }
.section-heading > p:last-child { max-width: 600px; margin: 10px 0 0; color: var(--muted); font-size: 14px; }
.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.feature-card {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 20px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(140deg, rgba(75, 91, 255, .1), transparent 52%), var(--panel);
}
.feature-ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid #33335a;
  border-radius: 11px;
  color: var(--indigo-soft);
  font-size: 15px;
  background: #17172a;
}
.feature-card h3 { margin: 0 0 4px; font-size: 16px; font-weight: 900; }
.feature-card p { margin: 0; color: var(--muted); font-size: 12.5px; line-height: 1.8; }

/* shots */
.shots { padding: 72px 0 80px; }
.shot-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 15px; align-items: start; }
.shot-card { position: relative; margin: 0; padding: 10px 10px 0; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); overflow: hidden; }
.shot-time {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 2;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(8, 8, 16, .7);
  color: var(--indigo-soft);
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .6px;
}
.shot-card img { width: 100%; height: auto; aspect-ratio: 5 / 8; object-fit: cover; object-position: center 3%; border-radius: 9px; }
.shot-card figcaption { display: flex; align-items: baseline; gap: 8px; padding: 11px 4px 13px; }
.shot-card figcaption b { color: var(--indigo-soft); font-size: 12px; font-weight: 900; }
.shot-card figcaption span { color: #a7a7c6; font-size: 11.5px; line-height: 1.5; }

/* faq */
.faq { padding: 70px 0 76px; border-top: 1px solid var(--line); background: var(--bg-2); }
.faq-layout { display: grid; grid-template-columns: minmax(0, .76fr) minmax(0, 1.24fr); 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: 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: 15px; font-weight: 900; }
.faq-list summary i { position: relative; flex: none; width: 22px; height: 22px; border: 1px solid #33335a; border-radius: 6px; }
.faq-list summary i::before,
.faq-list summary i::after { position: absolute; top: 50%; left: 50%; width: 9px; height: 1.5px; content: ""; background: var(--indigo-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(0); }
.faq-list details p { padding: 0 26px 17px 0; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.85; }

/* reviews: timeline */
.reviews { padding: 72px 0 78px; }
.review-list { position: relative; max-width: 880px; padding: 0 0 0 92px; margin: 0; list-style: none; }
.review-list::before { position: absolute; top: 8px; bottom: 8px; left: 78px; width: 1px; content: ""; background: linear-gradient(180deg, rgba(75, 91, 255, .7), rgba(75, 91, 255, .06)); }
.review-card { position: relative; padding: 0 0 22px; }
.review-card::before {
  position: absolute;
  top: 6px;
  left: -18px;
  width: 7px;
  height: 7px;
  content: "";
  border-radius: 50%;
  background: var(--indigo);
  box-shadow: 0 0 9px var(--indigo);
}
.review-meta { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 14px; margin-bottom: 5px; }
.review-meta b { color: var(--indigo-soft); font-size: 13px; font-weight: 900; }
.review-meta time { color: #75759c; font-family: var(--mono); font-size: 10px; }
.review-card p { margin: 0; color: #b6b6d2; font-size: 13px; line-height: 1.8; }

/* steps: vertical */
.steps { padding: 68px 0 74px; border-top: 1px solid var(--line); background: var(--bg-2); }
.step-list { position: relative; max-width: 760px; padding: 0; margin: 0; list-style: none; }
.step-list li { position: relative; display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 16px; padding: 0 0 20px; }
.step-list li::before { position: absolute; top: 30px; bottom: 0; left: 25px; width: 1px; content: ""; background: rgba(75, 91, 255, .28); }
.step-list li:last-child::before { display: none; }
.step-list span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 30px;
  border: 1px solid #33335a;
  border-radius: 999px;
  color: var(--indigo-soft);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  background: #141426;
}
.step-list h3 { margin: 2px 0 3px; font-size: 16px; font-weight: 900; }
.step-list p { margin: 0; color: var(--muted); font-size: 12.5px; line-height: 1.8; }

/* download: copy left, button right */
.download { padding: 74px 0; border-top: 1px solid var(--line); }
.download-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px 34px;
  padding: 34px clamp(22px, 4vw, 46px);
  border: 1px solid #2c2c4d;
  border-radius: 16px;
  background:
    radial-gradient(360px 220px at 92% 0%, rgba(75, 91, 255, .28), transparent 70%),
    linear-gradient(120deg, #14142a, #0c0c18);
}
.download-copy { min-width: 0; }
.download h2 { color: #fff; }
.download-copy > p { max-width: 520px; margin: 10px 0 0; color: var(--muted); font-size: 13.5px; }
.download-notes { display: flex; flex-wrap: wrap; gap: 6px 20px; padding: 14px 0 0; margin: 14px 0 0; border-top: 1px solid var(--line); list-style: none; }
.download-notes li { color: #8585ae; font-family: var(--mono); font-size: 10.5px; }
.download-notes li::before { margin-right: 6px; content: "✦"; color: var(--indigo-soft); }

/* 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 36px; 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: #a5a5c4; font-size: 12px; }
.footer-nav a:hover { color: var(--indigo-soft); }
.footer-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; margin-top: 20px; 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: #6f6f96; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    padding: 8px 22px 14px;
    border-bottom: 1px solid var(--line);
    background: #0b0b16;
    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: 11px 0; border-bottom: 1px solid var(--line); }
  .hero-grid { grid-template-columns: 1fr; padding: 44px 0 24px; }
  .phone-wrap { justify-self: start; width: min(270px, 76%); }
  .glow-bubble { left: -14px; }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-heading { position: static; }
  .download-inner { grid-template-columns: 1fr; }
  .download .button { justify-self: start; }
}
@media (max-width: 600px) {
  .page-shell, .nav-shell { width: calc(100% - 30px); }
  .hero h1 { font-size: clamp(40px, 13vw, 56px); }
  .feature-grid { grid-template-columns: 1fr; }
  .shot-row { grid-auto-flow: column; grid-auto-columns: 74%; grid-template-columns: none; gap: 10px; overflow-x: auto; padding-bottom: 6px; scroll-snap-type: x mandatory; }
  .shot-card { scroll-snap-align: start; }
  .review-list { padding-left: 70px; }
  .review-list::before { left: 58px; }
  .review-card::before { left: -16px; }
  .review-meta time { font-size: 9.5px; }
  .clock { font-size: 22px; }
  .download-notes li { font-size: 10px; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  .brand { font-size: 16px; gap: 6px; }
  .brand img { width: 29px; height: 29px; }
  .nav-actions { gap: 7px; }
  .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%; }
  .phone-wrap { width: 88%; }
  .glow-bubble { left: 0; bottom: 70px; }
  .review-list { padding-left: 20px; }
  .review-list::before { display: none; }
  .review-card::before { left: -2px; }
}