@charset "UTF-8";

:root {
  --bg: #141414;
  --bg-2: #1a1a1a;
  --panel: #1f1f1f;
  --line: #2e2e2e;
  --ink: #f5f1ec;
  --muted: #a3a09b;
  --orange: #FF6B2C;
  --orange-deep: #d8500f;
  --cream: #f7efe6;
  --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: 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(20, 20, 20, .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: -.2px; }
.brand img { width: 38px; height: 38px; border: 1px solid #3a3a3a; border-radius: 50%; object-fit: contain; background: #0f0f0f; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: var(--orange);
  color: #17110c;
  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: #b5b1ac; 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: 999px;
  background: var(--orange);
  color: #17110c;
  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: 50%; 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: centred wordmark between two tilted covers */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(600px 340px at 50% -8%, rgba(255, 107, 44, .26), transparent 72%),
    linear-gradient(180deg, #1c1815 0%, var(--bg) 100%);
}
.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 200px) minmax(0, 1fr) minmax(0, 200px);
  align-items: center;
  gap: clamp(12px, 2.4vw, 34px);
  padding: 52px 0 16px;
}
.hero-copy { min-width: 0; text-align: center; }
.hero-kicker {
  display: inline-block;
  margin: 0 0 14px;
  padding: 4px 14px;
  border: 1px solid #4a3a30;
  border-radius: 999px;
  color: #e5b596;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 2px;
}
.hero h1 {
  margin: 0;
  font-size: clamp(50px, 7.6vw, 96px);
  font-weight: 900;
  letter-spacing: clamp(-2px, -.4vw, -5px);
  line-height: .94;
  text-shadow: 0 18px 40px rgba(255, 107, 44, .18);
}
.hero-subtitle {
  margin: 16px 0 0;
  color: var(--orange);
  font-size: clamp(17px, 2vw, 23px);
  font-weight: 800;
  line-height: 1.4;
}
.hero-lead { max-width: 460px; margin: 12px auto 0; color: var(--muted); font-size: 14px; }
.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: 48px;
  gap: 14px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 900;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}
.button-primary { background: var(--orange); color: #17110c; box-shadow: 0 14px 28px rgba(255, 107, 44, .26); }
.button-primary:hover { background: #ff8351; transform: translateY(-2px); }
.button-large { min-height: 52px; padding: 0 32px; font-size: 15px; }
.text-link { color: #d4cfc9; border-bottom: 1px dashed #5b5249; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 5px; color: var(--orange); }

.hero-slip {
  position: relative;
  margin: 0;
  border: 4px solid var(--cream);
  border-radius: 3px;
  background: var(--cream);
  box-shadow: 0 22px 40px rgba(0, 0, 0, .55);
  transition: transform .25s ease;
}
.hero-slip img { width: 100%; height: auto; aspect-ratio: 9 / 16; object-fit: cover; }
.hero-slip figcaption {
  position: absolute;
  left: 50%;
  bottom: -13px;
  padding: 4px 12px;
  border-radius: 3px;
  background: var(--orange);
  color: #17110c;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  white-space: nowrap;
  transform: translateX(-50%);
}
.slip-left { justify-self: start; width: 100%; transform: rotate(-7deg); }
.slip-right { justify-self: end; width: 100%; transform: rotate(6deg); }
.slip-left:hover { transform: rotate(-4deg) translateY(-4px); }
.slip-right:hover { transform: rotate(3deg) translateY(-4px); }

.hero-line {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 4px 0 40px;
  color: var(--orange);
}
.hero-line svg { width: min(62%, 620px); height: 26px; }
.hero-line span { color: #8d8880; font-family: var(--mono); font-size: 10.5px; letter-spacing: 1.4px; white-space: nowrap; }

/* features: two by two */
.features { padding: 74px 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, 34px); font-weight: 900; letter-spacing: -.8px; 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-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.feature-card {
  position: relative;
  padding: 26px 24px 24px 30px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(160deg, rgba(255, 107, 44, .08), transparent 52%), var(--panel);
}
.feature-card::before {
  position: absolute;
  top: 24px;
  bottom: 24px;
  left: 12px;
  width: 3px;
  border-radius: 2px;
  content: "";
  background: var(--orange);
}
.feature-no {
  display: block;
  margin-bottom: 8px;
  color: #b97753;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.6px;
}
.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: editorial masonry, first tall, last wide */
.shots { padding: 74px 0 82px; }
.poster-row {
  display: grid;
  grid-template-columns: 1.45fr 1fr 1fr;
  gap: 12px;
  align-items: start;
}
.poster-card { margin: 0; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); overflow: hidden; }
.poster-card img { width: 100%; height: auto; aspect-ratio: 3 / 4; object-fit: cover; object-position: center 8%; }
.poster-card:nth-child(1) { grid-row: 1 / span 2; }
.poster-card:nth-child(1) img { aspect-ratio: 9 / 16; }
.poster-card:nth-child(4) { grid-column: 2 / 4; }
.poster-card:nth-child(4) img { aspect-ratio: 16 / 9; object-position: center 22%; }
.poster-card figcaption { display: flex; align-items: baseline; gap: 8px; padding: 10px 12px 11px; 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: 10px; 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, .72fr) minmax(0, 1.28fr); gap: clamp(24px, 4vw, 54px); }
.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: 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(--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 30px 17px 0; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.85; }

/* reviews: two 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: 18px 20px; border: 1px solid var(--line); border-radius: 6px; 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: var(--orange); font-size: 13px; font-weight: 900; }
.review-meta time { color: #807b74; font-family: var(--mono); font-size: 10px; }
.review-card p { margin: 0; color: #c8c4be; font-size: 13px; line-height: 1.8; }

/* steps: three columns on a drawn rule */
.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: 16px;
  padding: 26px 0 0;
  margin: 0;
  border-top: 1px dashed #4a4038;
  list-style: none;
}
.step-list li { position: relative; padding: 0 16px 0 0; }
.step-list li::before {
  position: absolute;
  top: -31px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  content: "";
  background: var(--orange);
}
.step-list span {
  display: block;
  margin-bottom: 6px;
  color: var(--orange);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
}
.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: centred */
.download { padding: 30px 0 40px; }
.download-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 50px clamp(24px, 5vw, 64px) 44px;
  border-radius: 14px;
  background:
    radial-gradient(420px 240px at 50% -22%, rgba(255, 255, 255, .28), transparent 70%),
    linear-gradient(135deg, #FF6B2C, #ffa45f 92%);
  color: #1d1208;
  text-align: center;
}
.download .eyebrow { color: #59250a; }
.download .eyebrow::before { background: #59250a; }
.download h2 { max-width: 640px; color: #1d1208; }
.download-inner > p { max-width: 480px; margin: 12px 0 22px; color: #5d2c10; font-size: 14px; }
.download .button-primary { background: #16110c; color: var(--cream); box-shadow: 0 14px 26px rgba(58, 26, 6, .3); }
.download .button-primary:hover { background: #2b2015; }
.download-notes { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 24px; padding: 20px 0 0; margin: 24px 0 0; border-top: 1px solid rgba(60, 26, 6, .22); list-style: none; }
.download-notes li { color: #52270d; font-family: var(--mono); font-size: 11px; }
.download-notes li::before { margin-right: 8px; content: "·"; }

/* 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: 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: #b8b4ae; 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: #807b74; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: minmax(0, 170px) minmax(0, 1fr) minmax(0, 170px); }
  .poster-row { grid-template-columns: 1.3fr 1fr; }
  .poster-card:nth-child(1) { grid-row: 1 / span 2; }
  .poster-card:nth-child(4) { grid-column: 1 / 3; }
}
@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-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 40px 0 10px; }
  .hero-copy { grid-column: 1 / -1; order: -1; margin-bottom: 26px; }
  .slip-left { justify-self: center; width: min(230px, 100%); }
  .slip-right { justify-self: center; width: min(230px, 100%); }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-heading { position: static; }
  .step-list { grid-template-columns: 1fr; gap: 22px; }
  .step-list li { padding-right: 0; }
  .step-list li::before { top: -27px; }
}
@media (max-width: 600px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .hero h1 { font-size: clamp(44px, 14vw, 62px); }
  .hero-lead { font-size: 13.5px; }
  .hero-line span { display: none; }
  .hero-line svg { width: 100%; }
  .feature-grid { grid-template-columns: 1fr; }
  .poster-row { grid-template-columns: 1fr; }
  .poster-card:nth-child(1) { grid-row: auto; }
  .poster-card:nth-child(1) img { aspect-ratio: 4 / 5; }
  .poster-card:nth-child(4) { grid-column: auto; }
  .poster-card:nth-child(4) img { aspect-ratio: 4 / 5; object-position: center 12%; }
  .review-list { grid-template-columns: 1fr; }
  .section-heading-split { grid-template-columns: 1fr; gap: 10px; }
  .section-heading-split > p:last-child { margin: 0; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .nav-actions { gap: 8px; }
  .nav-download { min-height: 36px; padding: 0 10px; font-size: 11px; gap: 4px; }
  .nav-download svg { width: 13px; height: 13px; }
  .menu-toggle { width: 36px; height: 36px; }
}
@media (max-width: 380px) {
  .brand { font-size: 14px; gap: 6px; letter-spacing: -.4px; }
  .brand img { width: 28px; height: 28px; }
  .brand-tag { display: none; }
  .nav-actions { gap: 8px; }
  .nav-download { min-height: 34px; padding: 0 9px; font-size: 10.5px; gap: 4px; }
  .nav-download svg { width: 12px; height: 12px; }
  .menu-toggle { width: 32px; height: 32px; }
  .hero h1 { font-size: 40px; }
  .hero-subtitle { font-size: 15.5px; }
  .button { width: 100%; }
  .hero-slip { width: min(190px, 100%); }
}