@charset "UTF-8";

:root {
  --bg: #161210;
  --bg-2: #1d1815;
  --panel: #221d19;
  --line: #3b332d;
  --ink: #f2eae1;
  --muted: #b3a49a;
  --red: #c7302b;
  --red-deep: #8f1e1a;
  --cream: #efe3d2;
  --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(--red); 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(--red);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.4px;
  line-height: 1.4;
}
.eyebrow::before { width: 18px; height: 2px; content: ""; background: currentColor; }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--line);
  background: rgba(22, 18, 16, .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: 9px; font-size: 20px; font-weight: 900; letter-spacing: .2px; }
.brand img { width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 3px; object-fit: contain; background: #241e1a; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 19px;
  height: 19px;
  border: 1px solid var(--red);
  color: var(--red);
  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: 7px 0; border-bottom: 2px solid transparent; color: #b8a89d; 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 17px;
  border: 1px solid var(--red);
  border-radius: 2px;
  background: var(--red);
  color: #fff4ea;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease;
}
.nav-download:hover { background: transparent; color: var(--red); }
.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: css torii frame + resource rows + tags */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(540px 320px at 14% 0%, rgba(199, 48, 43, .24), transparent 70%),
    radial-gradient(420px 260px at 96% 92%, rgba(199, 48, 43, .1), transparent 74%),
    linear-gradient(180deg, #1c1512 0%, var(--bg) 100%);
}
.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image: repeating-linear-gradient(90deg, rgba(255, 255, 255, .035) 0 1px, transparent 1px 96px);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(260px, .92fr);
  align-items: center;
  gap: clamp(26px, 4vw, 62px);
  padding: 58px 0 26px;
}
.torii { position: relative; padding: 54px 34px 34px; margin-top: 14px; border-left: 12px solid var(--red); border-right: 12px solid var(--red); }
.torii::before {
  position: absolute;
  top: -14px;
  left: -26px;
  right: -26px;
  height: 16px;
  content: "";
  background: var(--red);
  box-shadow: 0 6px 18px rgba(199, 48, 43, .32);
}
.torii::after {
  position: absolute;
  top: 30px;
  left: -10px;
  right: -10px;
  height: 8px;
  content: "";
  background: var(--red-deep);
}
.torii-body { position: relative; z-index: 2; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 14px;
  color: #b9a89d;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.8px;
}
.hero-kicker b {
  padding: 3px 9px;
  border: 1px solid var(--red);
  color: #eea9a4;
  font-size: 9.5px;
  font-weight: 900;
  letter-spacing: 1.4px;
}
.hero h1 {
  margin: 0;
  font-size: clamp(40px, 6.2vw, 76px);
  font-weight: 900;
  letter-spacing: clamp(-1px, -.3vw, -2px);
  line-height: 1;
}
.hero-subtitle {
  margin: 14px 0 0;
  color: #e9b9b4;
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 800;
  line-height: 1.45;
}
.hero-lead { max-width: 500px; margin: 13px 0 0; color: var(--muted); font-size: 14px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; margin-top: 24px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 13px;
  padding: 0 26px;
  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: var(--red); color: #fff4ea; box-shadow: 0 12px 26px rgba(199, 48, 43, .28); }
.button-primary:hover { background: #e0423c; transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 32px; font-size: 15px; }
.text-link { color: #cdbcb0; border-bottom: 1px dashed #6d564c; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 4px; color: var(--red); }

.res-list {
  padding: 20px 20px 12px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
  background: rgba(34, 29, 25, .88);
}
.res-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 0 0 10px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 1px;
}
.res-head small { color: #8d7d72; font-family: var(--mono); font-size: 10px; font-weight: 400; letter-spacing: .4px; }
.res-list ul { padding: 0; margin: 0; list-style: none; }
.res-list li {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px dashed #352c26;
}
.res-list li:last-child { border-bottom: 0; }
.res-list b { color: var(--cream); font-size: 13.5px; font-weight: 900; }
.res-list span { color: var(--muted); font-size: 12px; }
.res-list em { color: var(--red); font-family: var(--mono); font-size: 11px; font-style: normal; white-space: nowrap; }
.tag-row { position: relative; z-index: 2; display: flex; flex-wrap: wrap; gap: 8px; padding: 0 0 40px; margin: 0; list-style: none; }
.tag-row li {
  padding: 5px 13px;
  border: 1px solid #4b3d34;
  color: #c1b0a4;
  font-size: 12px;
  letter-spacing: 1px;
}
.tag-row li:first-child { border-color: var(--red); color: #eab3ae; }

/* shared headings */
.section-heading { margin-bottom: 28px; }
.section-heading h2 { margin: 0; font-size: clamp(24px, 2.8vw, 34px); font-weight: 900; letter-spacing: -.6px; line-height: 1.3; }
.section-heading > p:last-child { max-width: 640px; margin: 11px 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: 26px; }
.section-heading-split > p:last-child { margin: 0 0 3px; }

/* features: four columns, sharp rules */
.features { padding: 68px 0 72px; border-bottom: 1px solid var(--line); background: var(--bg-2); }
.feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line); }
.feature-card { padding: 20px 18px 22px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(34, 29, 25, .5); }
.feature-card:first-child { border-left: 1px solid var(--line); }
.feature-no { display: block; margin-bottom: 10px; color: var(--red); font-family: var(--mono); font-size: 11px; letter-spacing: 1.6px; }
.feature-card h3 { margin: 0 0 7px; font-size: 17px; font-weight: 900; }
.feature-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* shots: two columns of horizontal samples */
.shots { padding: 68px 0 72px; }
.sample-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.sample-card {
  display: grid;
  grid-template-columns: 42% minmax(0, 1fr);
  align-items: stretch;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
}
.sample-card img { width: 100%; height: auto; aspect-ratio: 3 / 3.6; object-fit: cover; object-position: center 16%; }
.sample-card figcaption { display: flex; flex-direction: column; justify-content: center; gap: 6px; padding: 16px 18px; border-left: 1px solid #3b332d; background: linear-gradient(90deg, rgba(255, 255, 255, .04), transparent 72%); }
.sample-card figcaption b { color: var(--red); font-family: var(--mono); font-size: 10px; letter-spacing: 1.4px; }
.sample-card figcaption span { display: flex; flex-direction: column; color: var(--cream); font-size: 15px; font-weight: 900; line-height: 1.3; }
.sample-card figcaption small { margin-top: 4px; color: var(--muted); font-size: 11.5px; font-weight: 500; line-height: 1.6; }

/* faq */
.faq { padding: 68px 0 72px; 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) + 24px); align-self: start; }
.faq-list details { margin-bottom: 8px; border: 1px solid var(--line); border-left: 3px solid var(--red); background: var(--panel); }
.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary h3 { margin: 0; font-size: 15px; font-weight: 900; }
.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: 10px;
  height: 1.5px;
  content: "";
  background: var(--red);
  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 15px; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.85; }

/* reviews: two columns, second column dropped a step */
.reviews { padding: 68px 0 74px; }
.review-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 14px; padding: 0; margin: 0; list-style: none; }
.review-card { padding: 18px 20px; border: 1px solid var(--line); border-bottom: 2px solid #4b3c33; background: var(--panel); }
.review-card:nth-child(even) { transform: translateY(22px); }
.review-meta { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 5px; padding-bottom: 8px; margin-bottom: 8px; border-bottom: 1px solid #372e28; }
.review-meta b { color: var(--cream); font-size: 13px; font-weight: 900; }
.review-meta time { color: #8e7d72; font-family: var(--mono); font-size: 9.5px; }
.review-card p { margin: 0; color: #c3b4a9; font-size: 13px; line-height: 1.8; }

/* steps */
.steps { padding: 66px 0 72px; border-top: 1px solid var(--line); background: var(--bg-2); }
.step-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; padding: 0; margin: 0; list-style: none; }
.step-list li { padding: 22px 20px 22px; border: 1px solid var(--line); background: linear-gradient(180deg, rgba(199, 48, 43, .1), transparent 62%), var(--panel); }
.step-list span { display: block; margin-bottom: 8px; color: var(--red); font-family: var(--mono); font-size: 30px; font-weight: 700; line-height: 1; }
.step-list h3 { margin: 0 0 6px; font-size: 16.5px; font-weight: 900; }
.step-list p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.78; }

/* download */
.download { padding: 30px 0; }
.download-inner {
  padding: 46px clamp(22px, 5vw, 58px);
  background:
    repeating-linear-gradient(135deg, rgba(0, 0, 0, .06) 0 1px, transparent 1px 10px),
    linear-gradient(120deg, #b32a25, #c7302b 62%, #a82420);
  text-align: center;
}
.download .eyebrow { display: inline-flex; justify-content: center; color: #ffd9d5; }
.download h2 { max-width: 620px; margin: 0 auto; font-size: clamp(24px, 2.9vw, 35px); font-weight: 900; line-height: 1.3; }
.download-inner > p { max-width: 520px; margin: 12px auto 22px; color: #ffe0dc; font-size: 13.5px; }
.download .button-primary { background: #191310; color: #ffece6; box-shadow: 0 12px 26px rgba(38, 8, 6, .4); }
.download .button-primary:hover { background: #2b201a; }
.download-notes { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 20px; padding: 20px 0 0; margin: 26px 0 0; border-top: 1px solid rgba(255, 255, 255, .24); list-style: none; }
.download-notes li { color: #ffd9d5; font-family: var(--mono); font-size: 10.5px; }
.download-notes li::before { margin-right: 6px; content: "／"; opacity: .7; }

/* 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 20px; }
.footer-nav a { color: #b6a599; font-size: 12px; }
.footer-nav a:hover { color: var(--red); }
.footer-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; 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: #8f7e73; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) 280px; gap: 24px; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-card:nth-child(3) { border-left: 1px solid var(--line); }
  .sample-grid { 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, .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: 42px 0 22px; gap: 26px; }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-heading { position: static; }
  .step-list { grid-template-columns: 1fr; }
  .review-card:nth-child(even) { transform: none; }
}
@media (max-width: 600px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .torii { padding: 42px 18px 26px; border-left-width: 9px; border-right-width: 9px; margin-top: 12px; }
  .torii::before { left: -14px; right: -14px; height: 12px; top: -11px; }
  .torii::after { top: 24px; height: 6px; left: -6px; right: -6px; }
  .hero h1 { font-size: clamp(36px, 11.5vw, 48px); }
  .hero-lead { font-size: 13.5px; }
  .res-list { padding: 16px 16px 8px; }
  .tag-row { padding-bottom: 30px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { border-left: 1px solid var(--line); padding: 16px 16px 18px; }
  .sample-card { grid-template-columns: 1fr; }
  .sample-card img { aspect-ratio: 4 / 3; object-position: center 22%; }
  .sample-card figcaption { padding: 13px 14px 15px; }
  .review-list { grid-template-columns: 1fr; gap: 10px; }
  .section-heading-split { grid-template-columns: 1fr; gap: 9px; }
  .section-heading-split > p:last-child { margin: 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .download-inner { padding: 34px 20px; }
}
@media (max-width: 380px) {
  .brand { font-size: 16px; gap: 6px; }
  .brand img { width: 30px; height: 30px; }
  .brand-tag { display: none; }
  .nav-actions { gap: 8px; }
  .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: 34px; }
  .hero-subtitle { font-size: 15.5px; }
  .button { width: 100%; }
  .res-list li { grid-template-columns: 56px minmax(0, 1fr) auto; gap: 7px; }
  .res-list b { font-size: 12.5px; }
  .res-list span { font-size: 11px; }
}