@charset "UTF-8";

:root {
  --bg: #14100e;
  --bg-2: #1a1512;
  --panel: #211a16;
  --line: #382b23;
  --ink: #f6efe8;
  --muted: #a2918a;
  --orange: #ff7a18;
  --orange-deep: #c94f00;
  --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;
}
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(--orange); outline-offset: 4px; }
.page-shell { width: min(calc(100% - 48px), var(--shell)); margin: 0 auto; }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 12px;
  color: var(--orange);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.6px;
  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(20, 16, 14, .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: 18px;
}
.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: 4px; object-fit: contain; background: #2a201a; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 19px;
  height: 19px;
  background: var(--orange);
  color: #1b0e05;
  font-size: 10px;
  font-style: normal;
  font-weight: 900;
  transform: skewX(-8deg);
}
.primary-nav { margin-left: auto; }
.primary-nav ul { display: flex; align-items: center; gap: clamp(12px, 1.8vw, 25px); padding: 0; margin: 0; list-style: none; }
.primary-nav a { display: block; padding: 7px 0; border-bottom: 2px solid transparent; color: #ab9a93; font-size: 13px; font-weight: 700; }
.primary-nav a:hover { border-bottom-color: var(--orange); 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(--orange);
  background: var(--orange);
  color: #1b0e05;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  clip-path: polygon(9px 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%, 0 9px);
  transition: background .18s ease, color .18s ease;
}
.nav-download:hover { background: transparent; color: var(--orange); }
.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); 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: wide banner + new rail + vertical time axis */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(760px 420px at 84% -12%, rgba(255, 122, 24, .28), transparent 70%),
    linear-gradient(178deg, #241914 0%, #17120f 62%, var(--bg) 100%);
}
.hero::after {
  position: absolute;
  right: -10%;
  top: 0;
  width: 52%;
  height: 100%;
  content: "";
  background: repeating-linear-gradient(102deg, rgba(255, 122, 24, .09) 0 2px, transparent 2px 42px);
  mask-image: linear-gradient(90deg, transparent, #000 42%, transparent);
  pointer-events: none;
}
.hero-banner { position: relative; z-index: 2; padding: 54px 0 0; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  color: #c3ae9f;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.6px;
}
.hero-kicker b {
  padding: 3px 7px;
  background: var(--orange);
  color: #1b0e05;
  font-size: 9.5px;
  font-weight: 900;
  letter-spacing: 1.2px;
}
.hero h1 {
  margin: 0;
  font-size: clamp(48px, 8.4vw, 108px);
  font-weight: 900;
  letter-spacing: clamp(-2px, -.5vw, -5px);
  line-height: .95;
}
.hero h1::after {
  display: inline-block;
  width: clamp(12px, 1.6vw, 20px);
  height: clamp(12px, 1.6vw, 20px);
  margin-left: 12px;
  content: "";
  background: var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  vertical-align: baseline;
}
.hero-subtitle { margin: 14px 0 0; color: #ffb06e; font-size: clamp(17px, 2vw, 23px); font-weight: 800; line-height: 1.4; }
.hero-lead { max-width: 640px; margin: 12px 0 0; color: var(--muted); font-size: 14.5px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 20px; margin-top: 24px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 12px;
  padding: 0 26px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 900;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}
.button-primary { background: var(--orange); color: #1b0e05; box-shadow: 0 14px 30px rgba(255, 122, 24, .22); }
.button-primary:hover { background: #ff9350; transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 34px; font-size: 15px; }
.text-link { color: #d3c2b6; border-bottom: 1px dashed #5d4436; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 5px; color: var(--orange); }

.hero-body {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
  align-items: start;
  gap: clamp(22px, 3.6vw, 48px);
  padding: 34px 0 44px;
}
.new-rail { border: 1px solid var(--line); background: rgba(33, 26, 22, .82); }
.rail-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; padding: 11px 15px; border-bottom: 1px solid var(--line); margin: 0; }
.rail-head b { color: var(--orange); font-size: 13px; font-weight: 900; letter-spacing: 1px; }
.rail-head span { color: #8c7b73; font-family: var(--mono); font-size: 9.5px; }
.new-rail ul { padding: 0; margin: 0; list-style: none; }
.new-rail li { display: grid; grid-template-columns: 34px minmax(0, 1fr) auto; align-items: center; gap: 12px; padding: 13px 15px; border-bottom: 1px solid #2b211b; }
.new-rail li:last-child { border-bottom: none; }
.new-rail i { color: var(--orange); font-family: var(--mono); font-size: 11px; font-style: normal; font-weight: 700; }
.new-rail b { font-size: 14px; font-weight: 900; }
.new-rail span { color: #96837a; font-family: var(--mono); font-size: 9.5px; white-space: nowrap; }

.time-axis { border-left: 2px solid rgba(255, 122, 24, .35); padding-left: 18px; }
.time-axis ol { position: relative; padding: 0; margin: 0; list-style: none; }
.time-axis li { position: relative; display: grid; grid-template-columns: 52px 58px minmax(0, 1fr); align-items: baseline; gap: 8px; padding: 8px 0; }
.time-axis li::before {
  position: absolute;
  left: -22px;
  top: 17px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #3a2d24;
  content: "";
}
.time-axis b { font-size: 13px; font-weight: 900; }
.time-axis span { color: #c8b3a7; font-family: var(--mono); font-size: 11px; }
.time-axis i { color: #8c7b73; font-family: var(--mono); font-size: 9.5px; font-style: normal; }
.time-axis .is-today::before { background: var(--orange); box-shadow: 0 0 0 4px rgba(255, 122, 24, .2); }
.time-axis .is-today b, .time-axis .is-today span { color: var(--orange); }

/* features: stacked rows */
.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: 620px; margin: 10px 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: 24px; }
.section-heading-split > p:last-child { margin: 0 0 4px; }
.feature-grid { display: grid; grid-template-columns: 1fr; gap: 0; border-top: 1px solid var(--line); }
.feature-card {
  display: grid;
  grid-template-columns: 56px minmax(120px, 180px) minmax(0, 1fr);
  align-items: baseline;
  gap: 10px 18px;
  padding: 19px 4px;
  border-bottom: 1px solid var(--line);
  transition: background .18s ease;
}
.feature-card:hover { background: rgba(255, 122, 24, .05); }
.feature-no { color: var(--orange); font-family: var(--mono); font-size: 13px; font-weight: 700; letter-spacing: 1.4px; }
.feature-card h3 { margin: 0; font-size: 17px; font-weight: 900; }
.feature-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* shots: staggered cards with caption overlay */
.shots { padding: 74px 0 86px; }
.poster-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; align-items: start; }
.poster-card { position: relative; margin: 0; border: 1px solid var(--line); background: var(--panel); overflow: hidden; }
.poster-card:nth-child(2) { margin-top: 20px; }
.poster-card:nth-child(3) { margin-top: 40px; }
.poster-card:nth-child(4) { margin-top: 60px; }
.poster-card img { width: 100%; height: auto; aspect-ratio: 9 / 16; object-fit: cover; object-position: top center; }
.poster-card figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 26px 14px 12px;
  background: linear-gradient(180deg, transparent, rgba(12, 9, 7, .92) 56%);
}
.poster-card figcaption b { color: var(--orange); font-family: var(--mono); font-size: 10px; }
.poster-card figcaption span { display: flex; flex-direction: column; font-size: 13px; font-weight: 800; line-height: 1.4; }
.poster-card figcaption small { color: #b8a49a; font-size: 10.5px; font-weight: 500; }

/* 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, 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: 20px; height: 20px; border: 1px solid #443428; transform: rotate(45deg); }
.faq-list summary i::before, .faq-list summary i::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 1.5px;
  content: "";
  background: var(--orange);
  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: single vertical timeline */
.reviews { padding: 72px 0 78px; }
.review-list { position: relative; padding: 0 0 0 26px; margin: 0; list-style: none; border-left: 1px solid var(--line); }
.review-card { position: relative; display: grid; grid-template-columns: 190px minmax(0, 1fr); align-items: start; gap: 8px 18px; padding: 0 0 22px 20px; }
.review-card:last-child { padding-bottom: 0; }
.review-card::before {
  position: absolute;
  left: -33px;
  top: 6px;
  width: 9px;
  height: 9px;
  border: 2px solid var(--orange);
  border-radius: 50%;
  background: var(--bg);
  content: "";
}
.review-meta { display: flex; flex-direction: column; align-items: flex-start; gap: 3px; padding-top: 5px; margin: 0; }
.review-meta b { color: var(--orange); font-size: 13px; font-weight: 900; }
.review-meta time { color: #7d6b62; font-family: var(--mono); font-size: 9.5px; }
.review-card p { max-width: none; padding: 13px 18px; margin: 0; border: 1px solid var(--line); border-left: 2px solid #4a3a2f; background: var(--panel); color: #c6b5ac; font-size: 13px; line-height: 1.8; }

/* steps: 3 across with arrow rule */
.steps { padding: 68px 0 74px; 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; counter-reset: step; }
.step-list li { position: relative; padding: 22px 20px 20px; border: 1px solid var(--line); background: var(--panel); }
.step-list li::after { position: absolute; right: -13px; top: 34px; z-index: 2; color: var(--orange); content: "→"; font-size: 13px; }
.step-list li:last-child::after { content: none; }
.step-list span { display: block; margin-bottom: 8px; color: var(--orange); font-family: var(--mono); font-size: 20px; font-weight: 700; line-height: 1; }
.step-list h3 { margin: 0 0 6px; font-size: 16px; font-weight: 900; }
.step-list p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* download: centered band */
.download { padding: 26px 0; }
.download-inner {
  padding: 50px clamp(22px, 5vw, 58px) 44px;
  border: 1px solid rgba(255, 122, 24, .45);
  background:
    radial-gradient(560px 260px at 50% -30%, rgba(255, 122, 24, .38), transparent 72%),
    linear-gradient(180deg, #241813, #171110);
  text-align: center;
}
.download .eyebrow { justify-content: center; }
.download h2 { margin: 0 auto; max-width: 560px; }
.download-inner > p:nth-of-type(2) { margin: 12px auto 22px; color: var(--muted); font-size: 14px; }
.download .button { margin: 0 auto; }
.download-notes { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 20px; padding: 20px 0 0; margin: 24px 0 0; border-top: 1px solid #33271f; list-style: none; }
.download-notes li { color: #9d8a80; font-family: var(--mono); font-size: 10.5px; }
.download-notes li::before { margin-right: 6px; content: "▸"; color: var(--orange); }

/* 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: 4px 0 0; color: var(--muted); font-size: 12px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-nav a { color: #b6a49b; font-size: 12px; }
.footer-nav a:hover { color: var(--orange); }
.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: #7d6b62; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1024px) {
  .feature-card { grid-template-columns: 48px minmax(110px, 150px) minmax(0, 1fr); }
  .hero h1 { font-size: clamp(46px, 8vw, 84px); }
}
@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); }
  .hero-body { grid-template-columns: 1fr; padding: 26px 0 34px; }
  .time-axis { margin-top: 8px; padding-left: 16px; border-top: 1px solid var(--line); padding-top: 16px; }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-heading { position: static; }
  .poster-row { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
  .poster-card:nth-child(2), .poster-card:nth-child(3), .poster-card:nth-child(4) { margin-top: 0; }
  .step-list { grid-template-columns: 1fr; }
  .step-list li::after { content: none; }
}
@media (max-width: 600px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .hero h1 { font-size: clamp(42px, 13.5vw, 58px); }
  .hero-lead { font-size: 14px; }
  .hero-banner { padding-top: 40px; }
  .feature-card { grid-template-columns: 38px minmax(0, 1fr); gap: 4px 12px; padding: 16px 0; }
  .feature-card p { grid-column: 2 / -1; }
  .poster-row { grid-auto-flow: column; grid-auto-columns: 78%; grid-template-columns: none; gap: 10px; overflow-x: auto; scroll-snap-type: x mandatory; }
  .poster-card { scroll-snap-align: start; }
  .section-heading-split { grid-template-columns: 1fr; gap: 8px; }
  .section-heading-split > p:last-child { margin: 0; }
  .new-rail li { grid-template-columns: 28px minmax(0, 1fr); }
  .new-rail li span { grid-column: 2 / -1; }
  .time-axis li { grid-template-columns: 46px 54px minmax(0, 1fr); }
  .time-axis li::before { left: -20px; }
  .review-list { padding-left: 18px; }
  .review-card { grid-template-columns: minmax(0, 1fr); gap: 6px; padding-left: 12px; }
  .review-meta { flex-direction: row; align-items: baseline; gap: 4px 10px; }
  .review-card::before { left: -25px; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  .brand { font-size: 15px; gap: 6px; }
  .brand img { width: 30px; height: 30px; }
  .brand-tag { display: none; }
  .nav-actions { gap: 6px; }
  .nav-download { min-height: 34px; padding: 0 9px; font-size: 10.5px; gap: 4px; }
  .nav-download svg { width: 14px; height: 14px; }
  .menu-toggle { width: 34px; height: 34px; }
  .hero h1 { font-size: 38px; }
  .hero-subtitle { font-size: 15px; }
  .button { width: 100%; }
  .new-rail span { font-size: 9px; }
}