@charset "UTF-8";

:root {
  --bg: #121212;
  --bg-2: #171313;
  --panel: #1c1717;
  --line: #352b2b;
  --ink: #f5ecea;
  --muted: #a99a97;
  --red: #e23b2e;
  --red-2: #ff5b4b;
  --shell: 1180px;
  --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: 1.75;
  overflow-x: hidden;
}
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(--red-2); 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 12px;
  color: var(--red-2);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
}
.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(18, 18, 18, .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: 10px; font-size: 20px; font-weight: 900; letter-spacing: -.4px; }
.brand img { width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 6px; object-fit: contain; background: #0c0a0a; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 3px;
  background: var(--red);
  color: #170807;
  font-family: var(--mono);
  font-size: 10px;
  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: 8px 0; border-bottom: 2px solid transparent; color: #b3a49f; font-size: 13px; font-weight: 700; }
.primary-nav a:hover { border-bottom-color: var(--red); 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(--red);
  border-radius: 4px;
  background: var(--red);
  color: #1b0a08;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease;
}
.nav-download:hover { background: transparent; color: var(--red-2); }
.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: 4px; 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: bleeding title + poster trio + ribbon */
.hero {
  position: relative;
  overflow: hidden;
  padding: 56px 0 46px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(680px 320px at 8% 0%, rgba(226, 59, 46, .28), transparent 72%),
    linear-gradient(180deg, #171010 0%, var(--bg) 78%);
}
.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image: repeating-linear-gradient(125deg, rgba(255, 255, 255, .028) 0 2px, transparent 2px 42px);
  pointer-events: none;
}
.ribbon {
  position: absolute;
  top: 22px;
  right: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  padding: 9px 44px 9px 18px;
  background: var(--red);
  color: #1b0a08;
  font-size: 12px;
  font-weight: 800;
  transform: translateX(10px);
}
.ribbon::after {
  position: absolute;
  top: 0;
  right: 0;
  border-top: 18px solid #8d1c13;
  border-right: 12px solid transparent;
  content: "";
}
.ribbon b {
  padding: 1px 7px;
  border: 1px solid rgba(27, 10, 8, .5);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 1px;
}
.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  align-items: center;
  gap: clamp(20px, 3vw, 44px);
}
.hero-copy { min-width: 0; }
.hero-kicker { display: flex; align-items: center; gap: 9px; margin: 0 0 10px; color: #b2a29e; font-family: var(--mono); font-size: 11px; letter-spacing: 1.6px; }
.hero-kicker b { padding: 3px 7px; border-radius: 3px; background: var(--red); color: #1b0a08; font-size: 9.5px; font-weight: 900; letter-spacing: 1.2px; }
.hero h1 {
  margin: 0 0 0 -6px;
  font-size: clamp(64px, 11.4vw, 148px);
  font-weight: 900;
  letter-spacing: clamp(-5px, -.9vw, -9px);
  line-height: .84;
  white-space: nowrap;
}
.hero-subtitle { margin: 16px 0 0; color: var(--red-2); font-size: clamp(18px, 2.1vw, 25px); font-weight: 800; line-height: 1.4; }
.hero-lead { max-width: 480px; 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: 26px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 12px;
  padding: 0 28px;
  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(--red); color: #1b0a08; box-shadow: 0 16px 30px rgba(226, 59, 46, .24); }
.button-primary:hover { background: var(--red-2); transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 34px; font-size: 15px; }
.text-link { color: #c2b2ae; border-bottom: 1px dashed #5c4340; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 4px; color: var(--red-2); }

.poster-trio { display: flex; align-items: flex-start; justify-content: flex-end; gap: 10px; }
.trio-card {
  flex: 1 1 0;
  margin: 0;
  border: 1px solid #3d2a28;
  background: #0d0a0a;
  box-shadow: 0 18px 34px rgba(0, 0, 0, .55);
}
.trio-card:nth-child(1) { transform: rotate(-2.4deg) translateY(10px); }
.trio-card:nth-child(2) { transform: translateY(-10px); z-index: 2; }
.trio-card:nth-child(3) { transform: rotate(2.4deg) translateY(14px); }
.trio-card img { width: 100%; height: auto; aspect-ratio: 9 / 16; object-fit: cover; object-position: center 8%; }

.stat-strip { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; padding: 0; margin: 34px 0 0; list-style: none; }
.stat-strip li { display: flex; align-items: baseline; gap: 10px; padding: 12px 16px; border-left: 2px solid var(--red); background: #1a1414; }
.stat-strip b { color: var(--red-2); font-size: 14px; font-weight: 900; }
.stat-strip span { color: #9c8c88; font-size: 12px; }

/* features: 2 x 2 */
.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(24px, 2.8vw, 35px); font-weight: 900; letter-spacing: -.8px; line-height: 1.3; }
.section-heading > p:last-child { max-width: 610px; margin: 10px 0 0; color: var(--muted); font-size: 14px; }
.section-heading-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(210px, 300px); align-items: end; gap: 26px; }
.section-heading-split > p:last-child { margin: 0 0 4px; }
.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.feature-card { padding: 26px 24px 24px; border: 1px solid var(--line); background: var(--panel); }
.feature-no { display: block; margin-bottom: 10px; color: var(--red); font-family: var(--mono); font-size: 22px; font-weight: 700; line-height: 1; }
.feature-card h3 { margin: 0 0 7px; font-size: 18px; font-weight: 900; }
.feature-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* shots: 4 columns */
.shots { padding: 72px 0 78px; }
.shot-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; align-items: start; }
.shot-card { margin: 0; border: 1px solid var(--line); background: #0f0c0c; }
.shot-card img { width: 100%; height: auto; aspect-ratio: 9 / 16; object-fit: cover; object-position: center 6%; }
.shot-card figcaption { padding: 11px 12px 12px; border-top: 1px solid var(--line); }
.shot-card figcaption b { display: block; margin-bottom: 3px; color: var(--red-2); font-family: var(--mono); font-size: 10px; letter-spacing: 1px; }
.shot-card figcaption span { display: block; color: #bcaeaa; font-size: 11.5px; line-height: 1.6; }

/* faq: full width rows */
.faq { padding: 72px 0 76px; border-top: 1px solid var(--line); background: var(--bg-2); }
.faq .section-heading { max-width: 720px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 22px;
  align-items: center;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary h3 { margin: 0; font-size: 16px; font-weight: 900; }
.faq-list summary i { position: relative; width: 22px; height: 22px; border: 1px solid var(--line); border-radius: 50%; }
.faq-list summary i::before,
.faq-list summary i::after { position: absolute; top: 50%; left: 50%; width: 9px; height: 1.5px; content: ""; background: var(--red-2); 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 36px 18px 48px; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.85; }

/* reviews: 2 columns */
.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: 20px 22px; border: 1px solid var(--line); border-top: 2px solid var(--red); background: var(--panel); }
.review-meta { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 6px; padding-bottom: 8px; margin-bottom: 8px; border-bottom: 1px dashed var(--line); }
.review-meta b { color: #f0d9d5; font-size: 13px; font-weight: 900; }
.review-meta time { color: #8b7c78; font-family: var(--mono); font-size: 10px; }
.review-card p { margin: 0; color: #bcaeab; font-size: 13px; line-height: 1.8; }

/* steps: vertical rail */
.steps { padding: 70px 0 76px; border-top: 1px solid var(--line); background: var(--bg-2); }
.steps-layout { display: grid; grid-template-columns: minmax(0, .62fr) minmax(0, 1.38fr); gap: clamp(24px, 4vw, 56px); }
.steps-heading { align-self: start; }
.step-list { position: relative; padding: 0 0 0 34px; margin: 0; list-style: none; }
.step-list::before { position: absolute; top: 8px; bottom: 8px; left: 8px; width: 1px; content: ""; background: linear-gradient(180deg, var(--red), rgba(226, 59, 46, .1)); }
.step-list li { position: relative; padding: 0 0 26px; }
.step-list li:last-child { padding-bottom: 0; }
.step-list li::before {
  position: absolute;
  top: 6px;
  left: -34px;
  width: 11px;
  height: 11px;
  border: 2px solid var(--red);
  border-radius: 50%;
  background: var(--bg-2);
  content: "";
}
.step-list span { display: block; margin-bottom: 4px; color: var(--red-2); font-family: var(--mono); font-size: 12px; font-weight: 700; letter-spacing: 2px; }
.step-list h3 { margin: 0 0 5px; font-size: 17px; font-weight: 900; }
.step-list p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* download */
.download { padding: 24px 0 56px; }
.download-box {
  padding: 44px clamp(22px, 5vw, 56px);
  border: 1px solid #4a2a26;
  background:
    radial-gradient(420px 220px at 90% 0%, rgba(226, 59, 46, .35), transparent 70%),
    linear-gradient(140deg, #1e1211, #141010);
}
.download .eyebrow { color: var(--red-2); }
.download h2 { max-width: 620px; }
.download-box > p { max-width: 520px; margin: 10px 0 22px; color: var(--muted); font-size: 14px; }
.download-notes { display: flex; flex-wrap: wrap; gap: 7px 22px; padding: 18px 0 0; margin: 24px 0 0; border-top: 1px solid var(--line); list-style: none; }
.download-notes li { color: #9c8c88; font-family: var(--mono); font-size: 11px; }
.download-notes li::before { margin-right: 7px; content: "／"; color: var(--red); }

/* 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: #b3a49f; font-size: 12px; }
.footer-nav a:hover { color: var(--red-2); }
.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: #8b7c78; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1024px) {
  .hero h1 { font-size: clamp(56px, 10vw, 116px); }
  .shot-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps-layout { grid-template-columns: 1fr; }
}
@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, .5);
  }
  .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 { padding-top: 46px; }
  .hero-grid { grid-template-columns: 1fr; }
  .poster-trio { justify-content: flex-start; max-width: 460px; }
  .ribbon { top: 16px; padding-right: 30px; font-size: 11px; }
  .stat-strip { grid-template-columns: 1fr; }
  .review-list { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .hero h1 { font-size: clamp(44px, 15vw, 76px); }
  .hero-lead { font-size: 14px; }
  .shot-row { grid-template-columns: 1fr; gap: 14px; }
  .feature-grid { grid-template-columns: 1fr; }
  .section-heading-split { grid-template-columns: 1fr; gap: 9px; }
  .section-heading-split > p:last-child { margin: 0; }
  .poster-trio { gap: 7px; }
  .trio-card:nth-child(1), .trio-card:nth-child(3) { transform: none; }
  .trio-card:nth-child(2) { transform: none; }
  .faq-list summary { grid-template-columns: 26px minmax(0, 1fr) 20px; gap: 10px; }
  .faq-list summary h3 { font-size: 14.5px; }
  .faq-list details p { padding: 0 0 16px 36px; }
  .footer-grid { grid-template-columns: 1fr; }
  .download-notes li { font-size: 10.5px; }
}
@media (max-width: 380px) {
  .brand { font-size: 15px; gap: 6px; }
  .brand img { width: 30px; height: 30px; }
  .brand-tag { display: none; }
  .nav-actions { gap: 7px; }
  .nav-download { min-height: 34px; padding: 0 9px; font-size: 11px; gap: 5px; }
  .nav-download svg { width: 14px; height: 14px; }
  .menu-toggle { width: 34px; height: 34px; }
  .hero h1 { font-size: 42px; letter-spacing: -2px; }
  .hero-subtitle { font-size: 16px; }
  .button { width: 100%; }
  .ribbon { display: none; }
}