@charset "UTF-8";

:root {
  --bg: #0d0b0a;
  --bg-2: #14100e;
  --panel: #1a1512;
  --panel-2: #221a16;
  --line: #33261f;
  --ink: #f6efe9;
  --muted: #b09c8f;
  --orange: #ff5a1f;
  --ember: #ffa14a;
  --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(--ember); 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(--orange);
  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(13, 11, 10, .94);
  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: 21px; font-weight: 900; }
.brand img { width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 6px; object-fit: contain; background: #120e0c; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 19px;
  height: 19px;
  border-radius: 3px;
  background: linear-gradient(160deg, var(--ember), var(--orange));
  color: #1a0c04;
  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(12px, 1.9vw, 25px); padding: 0; margin: 0; list-style: none; }
.primary-nav a { display: block; padding: 7px 0; border-bottom: 2px solid transparent; color: #bda99c; 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);
  border-radius: 2px;
  background: var(--orange);
  color: #1a0c04;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  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); border-radius: 3px; 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: centered title between two silhouettes */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(720px 460px at 50% 118%, rgba(255, 90, 31, .55), transparent 70%),
    radial-gradient(420px 320px at 50% 108%, rgba(255, 161, 74, .35), transparent 72%),
    linear-gradient(180deg, #0b0908 0%, #16100d 62%, #1d120c 100%);
}
.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 180px;
  content: "";
  background: radial-gradient(60% 120% at 50% 100%, rgba(255, 90, 31, .38), transparent 70%);
  pointer-events: none;
}
.hero-figure {
  position: absolute;
  top: 40px;
  bottom: 96px;
  z-index: 1;
  width: clamp(132px, 21vw, 292px);
  overflow: hidden;
  opacity: .42;
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 20%, #000 72%, transparent);
  mask-image: linear-gradient(180deg, transparent, #000 20%, #000 72%, transparent);
}
.hero-figure img { width: 100%; height: 100%; object-fit: cover; object-position: center 18%; filter: grayscale(92%) brightness(.5) contrast(1.15) blur(.4px); }
.hero-figure::after { position: absolute; inset: 0; content: ""; background: linear-gradient(180deg, rgba(13, 11, 10, .55), rgba(13, 11, 10, .2) 42%, rgba(13, 11, 10, .9)), linear-gradient(90deg, rgba(13, 11, 10, .3), transparent 55%); }
.hero-figure-left { left: 0; }
.hero-figure-right { right: 0; }
.hero-figure-left img { object-position: center 24%; }
.hero-figure-right img { object-position: center 30%; }
.hero-center {
  position: relative;
  z-index: 3;
  max-width: 640px;
  padding: 88px 0 44px;
  text-align: center;
}
.hero-kicker { margin: 0 0 18px; color: var(--ember); font-family: var(--mono); font-size: 11px; letter-spacing: 3px; }
.hero h1 {
  margin: 0;
  font-size: clamp(64px, 11vw, 132px);
  font-weight: 900;
  letter-spacing: clamp(-4px, -.8vw, -8px);
  line-height: .9;
  text-shadow: 0 0 46px rgba(255, 90, 31, .45);
}
.hero-subtitle { margin: 18px 0 0; color: #ffb27a; font-size: clamp(18px, 2.1vw, 24px); font-weight: 800; line-height: 1.4; }
.hero-lead { max-width: 470px; 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: 22px; margin-top: 28px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 14px;
  padding: 0 28px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 14px;
  font-weight: 900;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}
.button-primary { background: linear-gradient(120deg, var(--ember), var(--orange)); color: #1c0c04; box-shadow: 0 16px 34px rgba(255, 90, 31, .28); }
.button-primary:hover { transform: translateY(-2px); background: linear-gradient(120deg, #ffb771, #ff7440); }
.button-large { min-height: 54px; padding: 0 36px; font-size: 15px; }
.text-link { color: #d9c6ba; border-bottom: 1px dashed #5e4536; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 5px; color: var(--orange); }

.enter-bar {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px 18px;
  padding: 16px 20px;
  margin: 0 0 40px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  border-radius: 3px;
  background: rgba(26, 21, 18, .78);
}
.enter-label { color: var(--muted); font-family: var(--mono); font-size: 10.5px; letter-spacing: 1.6px; }
.enter-track { display: flex; flex: 1; align-items: center; gap: 0; padding: 0; margin: 0; list-style: none; }
.enter-track li { position: relative; flex: 1; padding-top: 14px; color: #6f5c50; font-size: 12px; font-weight: 800; text-align: left; }
.enter-track li::before { position: absolute; top: 3px; left: 0; width: 8px; height: 8px; content: ""; border-radius: 50%; background: #3a2c24; }
.enter-track li::after { position: absolute; top: 6.5px; left: 10px; right: 0; height: 1px; content: ""; background: #3a2c24; }
.enter-track li:last-child::after { display: none; }
.enter-track li.is-done { color: #c9b3a4; }
.enter-track li.is-done::before { background: var(--ember); }
.enter-track li.is-done::after { background: linear-gradient(90deg, var(--ember), var(--orange)); }
.enter-track li.is-now { color: var(--orange); }
.enter-track li.is-now::before { background: var(--orange); box-shadow: 0 0 0 4px rgba(255, 90, 31, .22); }
.enter-value { color: var(--orange); font-family: var(--mono); font-size: 15px; font-weight: 700; }

/* features: stacked rows */
.features { padding: 76px 0 82px; border-bottom: 1px solid var(--line); background: var(--bg-2); }
.section-heading { margin-bottom: 34px; }
.section-heading h2, .download h2 { margin: 0; font-size: clamp(25px, 2.9vw, 36px); font-weight: 900; letter-spacing: -.6px; line-height: 1.3; }
.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(210px, 300px); align-items: end; gap: 28px; }
.section-heading-split > p:last-child { margin: 0 0 5px; }
.feature-list { border-top: 1px solid var(--line); }
.feature-row {
  display: grid;
  grid-template-columns: 76px minmax(0, 220px) minmax(0, 1fr);
  align-items: center;
  gap: 10px 26px;
  padding: 24px 4px;
  border-bottom: 1px solid var(--line);
  transition: background .2s ease;
}
.feature-row:hover { background: rgba(255, 90, 31, .05); }
.feature-no { color: var(--orange); font-family: var(--mono); font-size: 12px; font-weight: 700; letter-spacing: 1.6px; }
.feature-row h3 { margin: 0; font-size: 19px; font-weight: 900; }
.feature-row p { margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.8; }

/* shots: staggered four columns */
.shots { padding: 76px 0 90px; }
.poster-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; align-items: start; }
.poster-card { margin: 0; border: 1px solid var(--line); border-radius: 3px; background: var(--panel); overflow: hidden; }
.poster-card:nth-child(even) { transform: translateY(24px); }
.poster-card img { width: 100%; height: auto; aspect-ratio: 9 / 15; object-fit: cover; object-position: center 16%; }
.poster-card figcaption { display: flex; align-items: baseline; gap: 9px; padding: 11px 12px 12px; border-top: 1px solid var(--line); }
.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: 12.5px; font-weight: 800; line-height: 1.4; }
.poster-card figcaption small { color: var(--muted); font-size: 10.5px; font-weight: 500; }

/* faq: full heading + two column details */
.faq { padding: 74px 0 80px; border-top: 1px solid var(--line); background: var(--bg-2); }
.faq .section-heading { max-width: 720px; }
.faq-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.faq-list details { border: 1px solid var(--line); border-radius: 3px; background: var(--panel); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 16px 16px; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary h3 { margin: 0; font-size: 14.5px; font-weight: 900; line-height: 1.5; }
.faq-list summary i { position: relative; flex: none; width: 18px; height: 18px; }
.faq-list summary i::before,
.faq-list summary i::after { position: absolute; top: 50%; left: 50%; width: 11px; 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 16px 16px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* reviews: first card spans both columns */
.reviews { padding: 76px 0 82px; }
.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(--orange); background: var(--panel); }
.review-card:first-child { grid-column: 1 / -1; background: linear-gradient(120deg, rgba(255, 90, 31, .1), transparent 60%), var(--panel-2); }
.review-meta { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 6px; padding-bottom: 9px; margin-bottom: 9px; border-bottom: 1px dashed var(--line); }
.review-meta b { color: var(--ember); font-size: 13px; font-weight: 900; }
.review-meta time { color: #806c60; font-family: var(--mono); font-size: 10px; }
.review-card p { margin: 0; color: #cbb9ad; font-size: 13px; line-height: 1.8; }

/* steps: vertical rail */
.steps { padding: 72px 0 78px; border-top: 1px solid var(--line); background: var(--bg-2); }
.step-list { position: relative; padding: 0 0 0 34px; margin: 0; list-style: none; }
.step-list::before { position: absolute; top: 8px; bottom: 8px; left: 11px; width: 1px; content: ""; background: linear-gradient(180deg, var(--orange), rgba(255, 90, 31, .1)); }
.step-list li { position: relative; display: grid; grid-template-columns: 52px minmax(0, 1fr); align-items: start; gap: 16px; padding: 16px 0; }
.step-list li::before { position: absolute; top: 26px; left: -30px; width: 11px; height: 11px; content: ""; border: 2px solid var(--orange); border-radius: 50%; background: var(--bg-2); }
.step-list > li > span { color: var(--orange); font-family: var(--mono); font-size: 20px; font-weight: 700; line-height: 1.4; }
.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: 1.8; }

/* download: centered */
.download { padding: 26px 0; }
.download-inner {
  padding: 52px clamp(24px, 5vw, 60px) 44px;
  border: 1px solid rgba(255, 90, 31, .4);
  border-radius: 4px;
  background:
    radial-gradient(520px 300px at 50% 120%, rgba(255, 90, 31, .6), transparent 72%),
    linear-gradient(180deg, #1c1310, #241410 78%);
  text-align: center;
}
.download .eyebrow { justify-content: center; color: var(--ember); }
.download h2 { color: #fff; }
.download-inner > p { margin: 12px auto 24px; color: #d8c4b8; font-size: 14px; }
.download .button-primary { margin: 0 auto; }
.download-notes { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 24px; padding: 22px 0 0; margin: 26px auto 0; max-width: 760px; border-top: 1px solid rgba(255, 255, 255, .12); list-style: none; }
.download-notes li { color: #c6b1a4; font-family: var(--mono); font-size: 11px; }
.download-notes li::before { margin-right: 8px; content: "▲"; color: var(--orange); font-size: 8px; }

/* footer */
.site-footer { padding: 44px 0 52px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 20px 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: #c3aea1; 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: 24px; padding-top: 18px; 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: #806c60; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1024px) {
  .hero-center { max-width: 560px; }
  .hero-figure { width: clamp(120px, 18vw, 210px); }
  .feature-row { grid-template-columns: 60px minmax(0, 200px) minmax(0, 1fr); gap: 10px 18px; }
}
@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-figure { display: none; }
  .hero-center { max-width: none; padding: 62px 0 34px; }
  .feature-row { grid-template-columns: 46px minmax(0, 1fr); }
  .feature-row p { grid-column: 2; }
  .poster-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .poster-card:nth-child(even) { transform: none; }
  .faq-list { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .hero h1 { font-size: clamp(52px, 17vw, 74px); }
  .hero-lead { font-size: 14px; }
  .enter-track li { font-size: 11px; }
  .feature-row { grid-template-columns: 1fr; gap: 6px; }
  .feature-row p { grid-column: 1; }
  .review-list { grid-template-columns: 1fr; }
  .section-heading-split { grid-template-columns: 1fr; gap: 10px; }
  .section-heading-split > p:last-child { margin: 0; }
  .step-list { padding-left: 26px; }
  .step-list li { grid-template-columns: 40px minmax(0, 1fr); gap: 10px; }
  .step-list li::before { left: -22px; }
  .download-notes li { font-size: 10.5px; }
  .footer-grid { grid-template-columns: 1fr; }
}
@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: 50px; }
  .hero-subtitle { font-size: 16px; }
  .button { width: 100%; }
  .enter-bar { padding: 14px; }
  .poster-strip { grid-template-columns: 1fr; }
}