@charset "UTF-8";

:root {
  --bg: #0B1220;
  --bg-2: #0E1626;
  --panel: #111C2E;
  --panel-2: #0C1524;
  --line: #1E2E45;
  --ink: #E8F0FA;
  --muted: #93A7C0;
  --accent: #22D3EE;
  --accent-deep: #0E7490;
  --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;
  overflow-wrap: anywhere;
}
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(--accent); 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 14px;
  color: var(--accent);
  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(11, 18, 32, .94);
  backdrop-filter: blur(14px);
}
.site-header::after {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 46%;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--accent) 62%, #A5F3FC);
  box-shadow: 0 0 14px rgba(34, 211, 238, .8);
}
.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: 0 1 auto; min-width: 0; gap: 10px; font-size: 21px; font-weight: 900; letter-spacing: .4px; }
.brand span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.brand img { width: 40px; height: 34px; border: 1px solid var(--line); border-radius: 9px; object-fit: contain; background: #0A1424; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 19px;
  height: 19px;
  border-radius: 6px;
  background: var(--accent);
  color: #051119;
  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, 1.9vw, 26px); padding: 0; margin: 0; list-style: none; }
.primary-nav a { display: block; padding: 7px 0; border-bottom: 2px solid transparent; color: #9EB4CD; font-size: 13px; font-weight: 700; }
.primary-nav a:hover { border-bottom-color: var(--accent); 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(--accent);
  border-radius: 8px;
  background: var(--accent);
  color: #051119;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease;
}
.nav-download:hover { background: transparent; color: var(--accent); }
.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: 10px; 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(700px 420px at 50% -18%, rgba(34, 211, 238, .22), transparent 72%),
    radial-gradient(420px 300px at 88% 96%, rgba(14, 116, 144, .22), transparent 74%),
    linear-gradient(180deg, #0C1728 0%, var(--bg) 78%);
}
.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image: repeating-linear-gradient(0deg, rgba(34, 211, 238, .05) 0 1px, transparent 1px 44px);
  mask-image: linear-gradient(180deg, #000, transparent 88%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; padding: 52px 0 62px; text-align: center; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  color: #9EB4CD;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.6px;
}
.hero-kicker b {
  padding: 3px 8px;
  border-radius: 5px;
  background: rgba(34, 211, 238, .16);
  color: var(--accent);
  font-size: 9.5px;
  font-weight: 900;
  letter-spacing: 1.4px;
}
.hero h1 {
  margin: 0;
  font-size: clamp(56px, 9vw, 112px);
  font-weight: 900;
  letter-spacing: clamp(-2px, -.5vw, -5px);
  line-height: .96;
}
.hero-subtitle {
  margin: 16px 0 0;
  color: var(--accent);
  font-size: clamp(18px, 2.2vw, 25px);
  font-weight: 800;
  line-height: 1.4;
}
.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: 24px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 14px;
  padding: 0 28px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 900;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}
.button-primary { background: var(--accent); color: #051119; box-shadow: 0 14px 30px rgba(34, 211, 238, .22); }
.button-primary:hover { background: #67E8F9; transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 34px; font-size: 15px; }
.text-link { color: #BFD3E8; border-bottom: 1px dashed #2C405C; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 5px; color: var(--accent); }

.search-stage { max-width: 800px; margin: 36px auto 0; text-align: left; }
.search-box {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 16px 15px 20px;
  border: 1px solid rgba(34, 211, 238, .5);
  border-radius: 14px;
  background: linear-gradient(180deg, #14213A, #0D1727);
  box-shadow: 0 0 0 7px rgba(34, 211, 238, .055), 0 26px 60px rgba(0, 0, 0, .45);
}
.search-box svg { width: 22px; height: 22px; flex: none; fill: none; stroke: var(--accent); stroke-width: 1.9; stroke-linecap: round; }
.search-ph { flex: 1; min-width: 0; color: #8DA5C0; font-size: 14.5px; }
.search-go {
  flex: none;
  padding: 9px 22px;
  border-radius: 9px;
  background: var(--accent);
  color: #051119;
  font-size: 13px;
  font-weight: 900;
}
.hot-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 0; margin: 14px 0 0; list-style: none; font-size: 12px; }
.hot-row .hot-label { margin-right: 4px; color: var(--accent); font-family: var(--mono); font-size: 10.5px; letter-spacing: 1.4px; }
.hot-row li:not(.hot-label) { padding: 5px 13px; border: 1px solid var(--line); border-radius: 999px; background: rgba(34, 211, 238, .06); color: #A9C0D8; }
.result-row { padding: 6px 16px; margin: 18px 0 0; list-style: none; border: 1px solid var(--line); border-radius: 14px; background: rgba(12, 21, 36, .92); }
.result-row li { display: grid; grid-template-columns: 44px minmax(0, 1fr) auto; align-items: center; gap: 14px; padding: 11px 0; border-top: 1px dashed rgba(34, 211, 238, .16); }
.result-row li:first-child { border-top: 0; }
.poster { width: 44px; height: 58px; border-radius: 6px; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .06); }
.p1 { background: linear-gradient(160deg, #4A2436, #140B14); }
.p2 { background: linear-gradient(160deg, #1B3B57, #0A1622); }
.p3 { background: linear-gradient(160deg, #3D3320, #14100A); }
.result-row span { display: flex; flex-direction: column; min-width: 0; }
.result-row b { font-size: 14px; font-weight: 900; }
.result-row small { color: #7F95AE; font-size: 11px; }
.result-row em { padding: 3px 9px; border-radius: 5px; background: rgba(34, 211, 238, .13); color: var(--accent); font-size: 10.5px; font-style: normal; font-weight: 700; white-space: nowrap; }
.stage-foot { margin: 12px 2px 0; color: #7F95AE; font-size: 11.5px; }

/* features */
.features { padding: 76px 0 80px; 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, 2.8vw, 35px); font-weight: 900; letter-spacing: -.6px; line-height: 1.32; }
.section-heading > p:last-child { max-width: 620px; margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.section-heading-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(200px, 320px); 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: 24px 20px 22px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: linear-gradient(170deg, rgba(34, 211, 238, .07), transparent 58%), var(--panel);
}
.feature-card::after {
  position: absolute;
  top: -1px;
  left: 20px;
  width: 34px;
  height: 2px;
  content: "";
  background: var(--accent);
}
.feature-no { display: block; margin-bottom: 10px; color: var(--accent); font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: 1.6px; }
.feature-card h3 { margin: 0 0 7px; font-size: 17px; font-weight: 900; }
.feature-card p { margin: 0; color: var(--muted); font-size: 12.8px; line-height: 1.82; }

/* shots */
.shots { padding: 76px 0 82px; }
.shot-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; align-items: stretch; }
.shot-card { display: flex; flex-direction: column; margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.shot-card img { width: 100%; height: auto; aspect-ratio: 3 / 4; object-fit: cover; object-position: center top; }
.shot-tall { grid-row: span 2; }
.shot-tall img { flex: 1 1 auto; height: 0; min-height: 260px; aspect-ratio: auto; }
.shot-wide { grid-column: 2 / span 2; background: linear-gradient(160deg, #0F1B2C, #08111E); }
.shot-wide img { aspect-ratio: 3 / 2; object-fit: contain; object-position: center; }
.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(--accent); 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: 74px 0 80px; border-top: 1px solid var(--line); background: var(--bg-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(--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: 15.5px; font-weight: 900; }
.faq-list summary i { position: relative; flex: none; width: 22px; height: 22px; border: 1px solid var(--line); 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(--accent); 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 28px 17px 0; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.86; }

/* reviews */
.reviews { padding: 74px 0 80px; }
.review-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; padding: 0; margin: 0; list-style: none; }
.review-card {
  padding: 16px 20px 17px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  border-top: 2px solid var(--accent-deep);
}
.review-meta { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 7px; }
.review-meta b { color: var(--accent); font-size: 13px; font-weight: 900; }
.review-meta time { color: #7089A3; font-family: var(--mono); font-size: 10px; }
.review-card p { margin: 0; color: #B8CADD; font-size: 13px; line-height: 1.76; }

/* steps */
.steps { padding: 72px 0 78px; 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; counter-reset: step; }
.step-list li { padding: 20px 20px 22px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); }
.step-list span { display: block; margin-bottom: 10px; color: var(--accent); font-family: var(--mono); font-size: 24px; font-weight: 700; line-height: 1; }
.step-list h3 { margin: 0 0 5px; font-size: 16px; font-weight: 900; }
.step-list p { margin: 0; color: var(--muted); font-size: 12.8px; line-height: 1.72; }

/* download */
.download { padding: 28px 0; }
.download-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 30px;
  padding: 46px clamp(24px, 5vw, 56px) 42px;
  border: 1px solid #24506B;
  border-radius: 14px;
  background:
    radial-gradient(460px 250px at 6% 0%, rgba(34, 211, 238, .2), transparent 72%),
    linear-gradient(110deg, #10243A, #0D1A2B 82%);
}
.download-copy { min-width: 0; }
.download h2 { max-width: 620px; }
.download-copy > p { max-width: 520px; margin: 13px 0 0; color: #A3BCD3; font-size: 14px; }
.download-notes { display: flex; flex-wrap: wrap; gap: 8px 22px; padding: 0; margin: 20px 0 0; list-style: none; }
.download-notes li { color: #8FB4CC; font-family: var(--mono); font-size: 11px; }
.download-notes li::before { margin-right: 8px; content: "·"; color: var(--accent); }
.download-act { display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; }
.act-note { max-width: 220px; margin: 0; color: #7F95AE; font-size: 11.5px; }

/* 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: #B0C4D8; font-size: 12px; }
.footer-nav a:hover { color: var(--accent); }
.footer-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; margin-top: 22px; padding-top: 17px; 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: #7089A3; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1000px) {
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .shot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .shot-wide { grid-column: auto; }
  .shot-tall { grid-row: auto; }
  .shot-tall img { flex: none; height: auto; min-height: 0; aspect-ratio: 3 / 4; }
}
@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(--bg);
    box-shadow: 0 16px 26px rgba(0, 0, 0, .55);
  }
  .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; }
  .faq-heading { position: static; }
  .download-inner { grid-template-columns: 1fr; gap: 22px; }
  .download-act { align-items: flex-start; text-align: left; }
}
@media (max-width: 768px) {
  .hero-inner { padding: 42px 0 48px; }
  .review-list { grid-template-columns: 1fr; }
  .step-list { grid-template-columns: 1fr; }
  .section-heading-split { grid-template-columns: 1fr; gap: 10px; }
  .section-heading-split > p:last-child { margin: 0; }
  .search-stage { margin-top: 28px; }
  .search-box { padding: 13px 14px 13px 16px; gap: 10px; }
  .search-go { padding: 8px 16px; }
}
@media (max-width: 560px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .nav-shell { gap: 10px; }
  .brand { font-size: 16px; gap: 7px; }
  .brand img { width: 32px; height: 28px; }
  .nav-download { min-height: 36px; padding: 0 10px; font-size: 11.5px; gap: 5px; }
  .nav-download svg { width: 14px; height: 14px; }
  .menu-toggle { width: 36px; height: 36px; }
  .hero h1 { font-size: clamp(46px, 15vw, 66px); }
  .hero-lead { font-size: 14px; }
  .hero-actions .button { width: 100%; }
  .feature-grid { grid-template-columns: 1fr; }
  .shot-grid { grid-template-columns: 1fr; }
  .shot-card img, .shot-tall img, .shot-wide img { aspect-ratio: 4 / 5; }
  .result-row { padding: 4px 12px; }
  .result-row li { grid-template-columns: 38px minmax(0, 1fr) auto; gap: 10px; }
  .poster { width: 38px; height: 50px; }
  .footer-grid { grid-template-columns: 1fr; }
  .download-act .button { width: 100%; }
}
@media (max-width: 380px) {
  .brand { font-size: 14px; gap: 6px; }
  .brand img { width: 28px; height: 25px; }
  .brand-tag { display: none; }
  .nav-actions { gap: 6px; }
  .nav-download { min-height: 32px; padding: 0 8px; font-size: 10px; gap: 4px; }
  .nav-download svg { width: 12px; height: 12px; }
  .menu-toggle { width: 32px; height: 32px; }
  .hero h1 { font-size: 44px; }
  .hero-subtitle { font-size: 16px; }
  .search-box { gap: 8px; }
  .search-ph { font-size: 12.5px; }
  .search-go { padding: 7px 10px; font-size: 11.5px; }
  .hot-row li:not(.hot-label) { padding: 4px 10px; font-size: 11px; }
  .result-row em { font-size: 9.5px; padding: 2px 6px; }
}