@charset "UTF-8";

:root {
  --bg: #0F1A13;
  --bg-2: #14231A;
  --panel: #17291D;
  --line: #2B4232;
  --ink: #EFF8E6;
  --muted: #9CB3A3;
  --lime: #C6F432;
  --deep: #14231A;
  --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;
}
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(--lime); 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(--lime);
  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(15, 26, 19, .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; letter-spacing: -.4px; }
.brand img { width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 12px; object-fit: contain; background: #0C1610; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 6px;
  background: var(--lime);
  color: #14231A;
  font-size: 11px;
  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: #A9C0AF; font-size: 13px; font-weight: 700; }
.primary-nav a:hover { border-bottom-color: var(--lime); 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(--lime);
  border-radius: 8px;
  background: var(--lime);
  color: #16240F;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease;
}
.nav-download:hover { background: transparent; color: var(--lime); }
.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: copy + branch cards + progress dots */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(560px 320px at 92% 4%, rgba(198, 244, 50, .14), transparent 72%),
    radial-gradient(420px 260px at 4% 96%, rgba(198, 244, 50, .06), transparent 74%),
    linear-gradient(180deg, #122019 0%, var(--bg) 100%);
}
.hero::after {
  position: absolute;
  top: 0;
  right: 0;
  width: 44%;
  height: 100%;
  content: "";
  background-image: linear-gradient(90deg, rgba(198, 244, 50, .16) 1px, transparent 1px);
  background-size: 46px 100%;
  mask-image: linear-gradient(90deg, transparent, #000 40%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 430px);
  align-items: center;
  gap: clamp(26px, 4vw, 56px);
  padding: 62px 0 36px;
}
.hero-copy { min-width: 0; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  color: #A9C0AF;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.6px;
}
.hero-kicker b {
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--lime);
  color: #16240F;
  font-size: 9.5px;
  font-weight: 900;
  letter-spacing: 1.2px;
}
.hero h1 {
  margin: 0;
  font-size: clamp(56px, 8.4vw, 104px);
  font-weight: 900;
  letter-spacing: clamp(-2px, -.5vw, -5px);
  line-height: .94;
}
.hero-subtitle {
  margin: 18px 0 0;
  color: var(--lime);
  font-size: clamp(18px, 2.1vw, 24px);
  font-weight: 800;
  line-height: 1.4;
}
.hero-lead { max-width: 500px; margin: 14px 0 0; color: var(--muted); font-size: 14.5px; }
.hero-actions { display: flex; align-items: 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 28px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 900;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}
.button-primary { background: var(--lime); color: #16240F; box-shadow: 0 14px 30px rgba(198, 244, 50, .18); }
.button-primary:hover { background: #d8ff5c; transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 34px; font-size: 15px; white-space: nowrap; }
.text-link { color: #C4D8C9; border-bottom: 1px dashed #4A6653; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 5px; color: var(--lime); }

.branch-panel {
  position: relative;
  padding: 20px 20px 22px;
  border: 1px solid #3A5542;
  border-radius: 16px;
  background: linear-gradient(170deg, rgba(198, 244, 50, .07), transparent 58%), #16261B;
  box-shadow: 0 22px 46px rgba(0, 0, 0, .42);
}
.branch-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.branch-head span { color: #8FA894; font-family: var(--mono); font-size: 10.5px; letter-spacing: .8px; }
.branch-head b { padding: 2px 9px; border-radius: 999px; background: rgba(198, 244, 50, .14); color: var(--lime); font-size: 11px; font-weight: 800; }
.branch-line { margin: 0 0 14px; color: #C9DCCB; font-size: 13px; line-height: 1.85; }
.branch-choices { padding: 0; margin: 0; list-style: none; }
.branch-choices li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  margin-bottom: 8px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(10, 20, 14, .6);
  font-size: 13px;
  line-height: 1.5;
}
.branch-choices b {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: #22362A;
  color: #97AE9C;
  font-family: var(--mono);
  font-size: 11px;
}
.branch-choices span { color: #C3D6C6; }
.branch-choices i { flex: none; margin-left: auto; color: var(--lime); font-size: 10.5px; font-style: normal; }
.branch-choices .is-picked { border-color: var(--lime); background: rgba(198, 244, 50, .1); }
.branch-choices .is-picked b { background: var(--lime); color: #16240F; }
.branch-choices .is-picked span { color: #EFF8E6; }

.hero-progress {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 0 40px;
}
.progress-label { flex: none; color: #8FA894; font-family: var(--mono); font-size: 10.5px; letter-spacing: 1px; }
.dots { display: flex; flex: 1; align-items: center; gap: 8px; padding: 0; margin: 0; list-style: none; }
.dots li { flex: 1; height: 4px; border-radius: 999px; background: #2A4031; }
.dots li.is-done { background: #6C8F52; }
.dots li.is-now { background: var(--lime); box-shadow: 0 0 0 3px rgba(198, 244, 50, .16); }

/* features: four across */
.features { padding: 76px 0 84px; 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(25px, 2.9vw, 35px); font-weight: 900; letter-spacing: -.9px; 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(200px, 290px); align-items: end; gap: 28px; }
.section-heading-split > p:last-child { margin: 0 0 5px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.feature-card {
  display: flex;
  flex-direction: column;
  padding: 24px 20px 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(198, 244, 50, .06), transparent 52%), var(--panel);
}
.feature-no {
  display: block;
  margin-bottom: auto;
  padding-bottom: 16px;
  color: var(--lime);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.6px;
}
.feature-card h3 { margin: 0 0 8px; font-size: 17px; font-weight: 900; }
.feature-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.85; }

/* shots: 2x2 */
.shots { padding: 76px 0 84px; }
.poster-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.poster-card { display: grid; grid-template-columns: 132px minmax(0, 1fr); align-items: center; gap: 16px; padding: 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.poster-frame { border-radius: 8px; overflow: hidden; background: #0C1610; }
.poster-frame img { width: 100%; height: auto; aspect-ratio: 9 / 16; object-fit: cover; object-position: center top; }
.poster-card figcaption { display: flex; flex-direction: column; gap: 4px; }
.poster-card figcaption b { color: var(--lime); font-family: var(--mono); font-size: 11px; letter-spacing: 1px; }
.poster-card figcaption span { font-size: 15px; font-weight: 900; line-height: 1.4; }
.poster-card figcaption small { display: block; margin-top: 4px; color: var(--muted); font-size: 11.5px; font-weight: 500; line-height: 1.6; }

/* 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, .78fr) minmax(0, 1.22fr); gap: clamp(26px, 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: 6px; }
.faq-list summary i::before,
.faq-list summary i::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 9px;
  height: 1.5px;
  content: "";
  background: var(--lime);
  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 18px 0; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.85; }

/* reviews: single column ledger */
.reviews { padding: 76px 0 82px; }
.review-list { display: grid; grid-template-columns: 1fr; gap: 0; padding: 0; margin: 0; list-style: none; border-top: 1px solid var(--line); }
.review-card {
  display: grid;
  grid-template-columns: 168px minmax(0, 1fr);
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.review-meta { display: flex; flex-direction: column; gap: 4px; }
.review-meta b { color: var(--lime); font-size: 14px; font-weight: 900; }
.review-meta time { color: #7C9583; font-family: var(--mono); font-size: 10.5px; }
.review-card p { margin: 0; color: #B9CDBC; font-size: 13.5px; line-height: 1.8; }

/* steps: vertical timeline */
.steps { padding: 72px 0 78px; border-top: 1px solid var(--line); background: var(--bg-2); }
.step-list { position: relative; display: grid; gap: 0; padding: 0 0 0 66px; margin: 0; list-style: none; }
.step-list::before { position: absolute; top: 8px; bottom: 18px; left: 22px; width: 1px; content: ""; background: linear-gradient(180deg, var(--lime), rgba(198, 244, 50, .12)); }
.step-list li { position: relative; padding: 0 0 26px; }
.step-list li:last-child { padding-bottom: 0; }
.step-list span {
  position: absolute;
  top: 0;
  left: -66px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid #3A5542;
  border-radius: 50%;
  background: #14231A;
  color: var(--lime);
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
}
.step-list h3 { margin: 8px 0 0; font-size: 18px; font-weight: 900; }
.step-list p { max-width: 620px; margin: 6px 0 0; color: var(--muted); font-size: 13.5px; line-height: 1.85; }

/* download: copy left, button right */
.download { padding: 34px 0; }
.download-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 46px clamp(24px, 5vw, 56px);
  border-radius: 18px;
  background:
    radial-gradient(380px 220px at 100% 0%, rgba(255, 255, 255, .28), transparent 70%),
    linear-gradient(118deg, #C6F432, #9BD10F 88%);
  color: #14231A;
}
.download .eyebrow { color: #3B5307; }
.download h2 { max-width: 620px; color: #14231A; }
.download-inner > div > p { max-width: 520px; margin: 13px 0 0; color: #33470C; font-size: 14px; }
.download .button-primary { flex: none; background: #14231A; color: #ECFBD2; box-shadow: 0 14px 26px rgba(20, 35, 26, .26); }
.download .button-primary:hover { background: #22392A; }
.download-notes { display: flex; flex-wrap: wrap; gap: 8px 22px; padding: 16px 0 0; margin: 18px 0 0; border-top: 1px solid rgba(20, 35, 26, .2); list-style: none; }
.download-notes li { color: #33470C; font-family: var(--mono); font-size: 11px; }
.download-notes li::before { margin-right: 8px; content: "◆"; }

/* 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: #B4C8B8; font-size: 12px; }
.footer-nav a:hover { color: var(--lime); }
.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: #7C9583; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(260px, 360px); gap: 26px; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 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, .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: 1fr; padding: 46px 0 28px; }
  .branch-panel { max-width: 460px; }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-heading { position: static; }
  .download-inner { flex-direction: column; align-items: flex-start; }
  .download .button-primary { width: 100%; }
  .poster-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .hero h1 { font-size: clamp(46px, 14vw, 62px); }
  .hero-lead { font-size: 14px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { padding: 20px 18px; }
  .poster-card { grid-template-columns: 104px minmax(0, 1fr); gap: 14px; }
  .review-card { grid-template-columns: 1fr; gap: 6px; }
  .review-meta { flex-direction: row; align-items: baseline; justify-content: space-between; }
  .step-list { padding-left: 54px; }
  .step-list::before { left: 17px; }
  .step-list li { padding-bottom: 24px; }
  .step-list span { left: -54px; width: 36px; height: 36px; font-size: 12px; }
  .step-list h3 { margin-top: 4px; }
  .section-heading-split { grid-template-columns: 1fr; gap: 10px; }
  .section-heading-split > p:last-child { margin: 0; }
  .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: 32px; height: 32px; }
  .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: 44px; }
  .hero-subtitle { font-size: 16px; }
  .button { width: 100%; }
  .hero-progress { flex-direction: column; align-items: flex-start; gap: 10px; }
}