@charset "UTF-8";

:root {
  --bg: #0C0A09;
  --bg-2: #14100D;
  --panel: #1A1410;
  --panel-2: #211811;
  --line: #3A2A1C;
  --ink: #F6EEE2;
  --muted: #B9A78F;
  --gold: #F59E0B;
  --gold-soft: #FCD34D;
  --shell: 1160px;
  --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(--gold); 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(--gold);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.4px;
  line-height: 1.4;
}
.eyebrow::before { width: 18px; height: 1px; content: ""; background: currentColor; }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--line);
  background: rgba(12, 10, 9, .95);
  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: .3px; }
.brand img { width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 10px; object-fit: contain; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 19px;
  height: 19px;
  border: 1px solid var(--gold);
  border-radius: 4px;
  color: var(--gold);
  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: 1px solid transparent; color: #C3B29A; font-size: 13px; font-weight: 700; }
.primary-nav a:hover { border-bottom-color: var(--gold); 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(--gold);
  border-radius: 4px;
  background: var(--gold);
  color: #1A1104;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease;
}
.nav-download:hover { background: transparent; color: var(--gold); }
.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: 8px; 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;
  padding: 96px 0 34px;
  background:
    radial-gradient(520px 380px at 50% 0%, rgba(245, 158, 11, .16), transparent 68%),
    radial-gradient(400px 300px at 8% 82%, rgba(245, 158, 11, .08), transparent 70%),
    linear-gradient(180deg, #17110C 0%, #0C0A09 78%);
}
.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image: radial-gradient(rgba(245, 158, 11, .16) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, #000, transparent 74%);
  pointer-events: none;
}
.curtain {
  position: absolute;
  left: 0;
  right: 0;
  z-index: 3;
  height: 54px;
  background:
    repeating-linear-gradient(90deg, #2A1710 0 2px, #1E1009 2px 22px, #241409 22px 40px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .55);
}
.curtain::after {
  position: absolute;
  left: 0;
  right: 0;
  height: 15px;
  content: "";
  background: radial-gradient(circle at 14px 0, #1E1009 0 13px, transparent 14px) repeat-x;
  background-size: 28px 15px;
}
.curtain::before {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(245, 158, 11, .75), transparent);
}
.curtain-top { top: 0; }
.curtain-top::before { bottom: 12px; }
.curtain-top::after { bottom: -15px; }
.curtain-bottom { bottom: 0; transform: rotate(180deg); }
.curtain-bottom::before { bottom: 12px; }
.curtain-bottom::after { bottom: -15px; }
.beam {
  position: absolute;
  z-index: 1;
  top: 0;
  width: 52%;
  height: 100%;
  pointer-events: none;
  filter: blur(3px);
}
.beam-left {
  left: 0;
  clip-path: polygon(0 0, 26% 0, 58% 100%, 4% 100%);
  background: linear-gradient(180deg, rgba(252, 211, 77, .3), rgba(245, 158, 11, .06) 58%, transparent 84%);
}
.beam-right {
  right: 0;
  clip-path: polygon(74% 0, 100% 0, 96% 100%, 42% 100%);
  background: linear-gradient(180deg, rgba(252, 211, 77, .22), rgba(245, 158, 11, .05) 52%, transparent 80%);
}
.hero-copy { position: relative; z-index: 4; max-width: 760px; margin: 0 auto; text-align: center; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: #CDBBA2;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.8px;
}
.hero-kicker b {
  padding: 3px 9px;
  border: 1px solid var(--gold);
  border-radius: 3px;
  color: var(--gold);
  font-size: 9.5px;
  font-weight: 900;
  letter-spacing: 1.6px;
}
.hero h1 {
  margin: 0;
  font-size: clamp(52px, 7.6vw, 98px);
  font-weight: 900;
  letter-spacing: clamp(-1px, -.3vw, -3px);
  line-height: 1;
  text-shadow: 0 18px 44px rgba(245, 158, 11, .22);
}
.hero-subtitle {
  margin: 16px 0 0;
  color: var(--gold-soft);
  font-size: clamp(18px, 2.1vw, 24px);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: 1px;
}
.hero-lead { max-width: 600px; 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: 20px; margin-top: 26px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 14px;
  padding: 0 30px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 900;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}
.button-primary { background: var(--gold); color: #1A1104; box-shadow: 0 14px 30px rgba(245, 158, 11, .24); }
.button-primary:hover { background: var(--gold-soft); transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 36px; font-size: 15px; }
.text-link { color: #D6C6AE; border-bottom: 1px dashed #5A4326; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 5px; color: var(--gold); }

.scene-bar {
  position: relative;
  z-index: 4;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 18px;
  padding: 12px 18px;
  margin: 40px auto 22px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(26, 20, 16, .72);
  color: #BFAE96;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 1px;
}
.scene-bar b { color: var(--gold); font-weight: 900; }
.scene-bar i { color: var(--gold-soft); font-style: normal; }
.scene-bar em { color: #8E7A60; font-style: normal; }
.scene-lamp { width: 7px; height: 7px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 10px rgba(245, 158, 11, .9); }

/* features */
.features { padding: 74px 0 78px; border-top: 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: -.4px; line-height: 1.3; }
.section-heading > p:last-child { max-width: 600px; margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.prop-strip {
  display: flex;
  gap: 14px;
  max-width: 100%;
  padding: 4px 2px 18px;
  margin: 0;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-color: #5A4326 transparent;
}
.prop-card {
  flex: 0 0 302px;
  scroll-snap-align: start;
  padding: 24px 22px 22px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--gold);
  border-radius: 6px;
  background: linear-gradient(170deg, rgba(245, 158, 11, .1), transparent 56%), var(--panel);
}
.prop-no { display: block; margin-bottom: 10px; color: var(--gold); font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: 2px; }
.prop-card h3 { margin: 0 0 7px; font-size: 18px; font-weight: 900; }
.prop-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* shots */
.shots { padding: 72px 0 80px; }
.shot-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); align-items: start; gap: 14px; }
.shot-card { margin: 0; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); overflow: hidden; }
.shot-card img { width: 100%; height: auto; object-fit: cover; object-position: top center; }
.shot-card:nth-child(1) img { aspect-ratio: 9 / 16; }
.shot-card:nth-child(2) img { aspect-ratio: 4 / 5; }
.shot-card:nth-child(3) img { aspect-ratio: 3 / 4; }
.shot-card:nth-child(4) img { aspect-ratio: 10 / 16; }
.shot-card:nth-child(2) { margin-top: 30px; }
.shot-card:nth-child(3) { margin-top: 14px; }
.shot-card:nth-child(4) { margin-top: 44px; }
.shot-card figcaption { padding: 11px 13px 12px; border-top: 1px solid var(--line); }
.shot-card figcaption b { display: block; margin-bottom: 2px; color: var(--gold); font-family: var(--mono); font-size: 10px; letter-spacing: 1.4px; }
.shot-card figcaption span { display: block; font-size: 13.5px; font-weight: 900; line-height: 1.4; }
.shot-card figcaption small { color: var(--muted); font-size: 10.5px; font-weight: 500; }

/* faq */
.faq { padding: 72px 0 78px; 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, 3.6vw, 50px); }
.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: 16px 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: 24px; height: 24px; border: 1px solid var(--line); border-radius: 3px; }
.faq-list summary i::before,
.faq-list summary i::after { position: absolute; top: 50%; left: 50%; width: 9px; height: 1.5px; content: ""; background: var(--gold); 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 16px 0; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.85; }

/* reviews */
.reviews { padding: 72px 0 78px; }
.review-list { display: grid; gap: 12px; padding: 0; margin: 0; list-style: none; }
.review-card { padding: 18px 22px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); }
.review-head { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(245, 158, 11, .5);
  border-radius: 50%;
  background: rgba(245, 158, 11, .12);
  color: var(--gold-soft);
  font-size: 14px;
  font-weight: 900;
}
.review-meta { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; }
.review-meta b { color: var(--ink); font-size: 13.5px; font-weight: 900; }
.review-meta time { color: #8E7A60; font-family: var(--mono); font-size: 10.5px; }
.review-card p { margin: 0; color: #D3C3AC; font-size: 13.5px; line-height: 1.75; }

/* steps */
.steps { padding: 70px 0 76px; border-top: 1px solid var(--line); background: var(--bg-2); }
.step-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; padding: 0; margin: 0; list-style: none; }
.step-list li {
  position: relative;
  padding: 30px 22px 22px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  overflow: hidden;
}
.step-list li::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, var(--gold), rgba(245, 158, 11, .08));
}
.step-list span { display: block; margin-bottom: 8px; color: var(--gold); font-family: var(--mono); font-size: 26px; font-weight: 700; line-height: 1; }
.step-list h3 { margin: 0 0 6px; font-size: 17px; font-weight: 900; }
.step-list p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }

/* download */
.download { padding: 24px 0 42px; }
.download-inner {
  padding: 46px clamp(24px, 5vw, 60px) 40px;
  border: 1px solid #5A4326;
  border-radius: 8px;
  background:
    radial-gradient(420px 240px at 50% 0%, rgba(245, 158, 11, .2), transparent 70%),
    linear-gradient(180deg, #221810, #140F0B 82%);
  text-align: center;
}
.download-inner > .button { margin-bottom: 26px; }
.download .eyebrow { justify-content: center; }
.download h2 { max-width: 620px; margin: 0 auto; }
.download-inner > p { max-width: 520px; margin: 12px auto 0; color: var(--muted); font-size: 14px; }
.download-notes { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 20px; padding: 18px 0 0; margin: 22px 0 0; border-top: 1px solid rgba(245, 158, 11, .2); list-style: none; }
.download-notes li { color: #C9B79D; font-family: var(--mono); font-size: 11px; }

/* 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: #C3B29A; font-size: 12px; }
.footer-nav a:hover { color: var(--gold); }
.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: #8E7A60; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1000px) {
  .shot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 20px; }
  .shot-card:nth-child(2), .shot-card:nth-child(3), .shot-card:nth-child(4) { margin-top: 0; }
  .shot-card:nth-child(2) img { aspect-ratio: 9 / 16; }
  .shot-card:nth-child(3) img { aspect-ratio: 9 / 16; }
  .shot-card:nth-child(4) img { aspect-ratio: 9 / 16; }
}
@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; }
  .step-list { grid-template-columns: 1fr; }
  .hero { padding: 84px 0 28px; }
  .beam { width: 60%; }
}
@media (max-width: 768px) {
  .prop-card { flex: 0 0 270px; }
  .scene-bar { font-size: 10.5px; gap: 6px 12px; }
  .download-inner { padding: 38px 24px 34px; }
}
@media (max-width: 560px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .hero h1 { font-size: clamp(44px, 13.4vw, 58px); }
  .hero-lead { font-size: 14px; }
  .hero { padding: 76px 0 24px; }
  .curtain { height: 42px; }
  .scene-bar { margin-top: 28px; }
  .shot-grid { gap: 10px; row-gap: 12px; }
  .review-card { padding: 16px 16px; }
  .footer-grid { grid-template-columns: 1fr; }
  .button { width: 100%; }
  .hero-actions { gap: 14px; }
  .text-link { width: 100%; text-align: center; }
}
@media (max-width: 380px) {
  .brand { font-size: 17px; gap: 7px; }
  .brand img { width: 30px; height: 30px; }
  .brand-tag { display: none; }
  .nav-actions { gap: 8px; }
  .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: 42px; }
  .hero-subtitle { font-size: 16px; }
  .prop-card { flex: 0 0 214px; padding: 20px 18px; }
}