@charset "UTF-8";

:root {
  --cream: #FEF3C7;
  --bg: #FFFBF0;
  --bg-2: #FDF4E1;
  --panel: #FFFDF6;
  --brown: #7C2D12;
  --brown-2: #9A3412;
  --brown-soft: #B45309;
  --ink: #2A1A12;
  --muted: #7A5B45;
  --line: #E7D3B4;
  --shell: 1180px;
  --header-height: 72px;
  --mono: "JetBrains Mono", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 16px); }
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: 1.75;
  overflow-wrap: anywhere;
}
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(--brown-2); outline-offset: 4px; }
.page-shell { width: min(calc(100% - 48px), var(--shell)); margin: 0 auto; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 4px 12px 4px 10px;
  margin: 0 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--brown);
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 1.8px;
  line-height: 1.5;
}
.eyebrow::before { width: 7px; height: 7px; border-radius: 50%; content: ""; background: var(--brown-soft); }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 251, 240, .94);
  backdrop-filter: blur(12px);
}
.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; color: var(--brown); font-size: 20px; font-weight: 900; letter-spacing: .4px; }
.brand img { width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 50%; object-fit: contain; background: var(--cream); }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 5px;
  background: var(--brown);
  color: var(--cream);
  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: 6px 0; border-bottom: 2px solid transparent; color: var(--muted); font-size: 13px; font-weight: 700; }
.primary-nav a:hover { border-bottom-color: var(--brown); color: var(--brown); }
.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(--brown);
  border-radius: 999px;
  background: var(--brown);
  color: var(--cream);
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease;
}
.nav-download:hover { background: var(--brown-2); }
.nav-download svg, .button svg { width: 17px; height: 17px; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 0; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); cursor: pointer; }
.menu-toggle span { display: block; width: 18px; height: 2px; margin: 5px auto; background: var(--brown); 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 */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(520px 320px at 88% 6%, rgba(180, 83, 9, .16), transparent 68%),
    radial-gradient(380px 260px at 2% 96%, rgba(124, 45, 18, .08), transparent 70%),
    linear-gradient(180deg, var(--cream) 0%, var(--bg) 72%);
}
.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image: repeating-linear-gradient(0deg, rgba(124, 45, 18, .05) 0 1px, transparent 1px 34px);
  mask-image: linear-gradient(180deg, #000, transparent 88%);
  pointer-events: none;
}
.hero .page-shell { position: relative; z-index: 2; }
.hero-head {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  align-items: end;
  gap: clamp(18px, 3vw, 46px);
  padding: 52px 0 26px;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 12px;
  color: var(--brown-soft);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 1.5px;
}
.hero-kicker b {
  padding: 3px 7px;
  border-radius: 4px;
  background: var(--brown);
  color: var(--cream);
  font-size: 9px;
  font-weight: 900;
}
.hero h1 {
  margin: 0;
  color: var(--brown);
  font-size: clamp(48px, 6.4vw, 86px);
  font-weight: 900;
  letter-spacing: clamp(-1px, -.3vw, -3px);
  line-height: 1;
}
.hero-head-side { min-width: 0; padding-bottom: 6px; }
.hero-subtitle { margin: 0; color: var(--brown-2); font-size: clamp(17px, 1.9vw, 22px); font-weight: 800; line-height: 1.4; }
.hero-lead { max-width: 460px; margin: 10px 0 0; color: var(--muted); font-size: 14px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; margin-top: 20px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  gap: 12px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 900;
  transition: transform .18s ease, background .18s ease;
}
.button-primary { background: var(--brown); color: var(--cream); box-shadow: 0 12px 26px rgba(124, 45, 18, .22); }
.button-primary:hover { background: var(--brown-2); transform: translateY(-2px); }
.button-large { min-height: 52px; padding: 0 32px; font-size: 15px; }
.text-link { color: var(--brown-2); border-bottom: 1px dashed #C9A87F; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 4px; }

.hero-body { display: grid; grid-template-columns: minmax(0, 250px) minmax(0, 1fr); gap: clamp(18px, 3vw, 44px); align-items: start; padding-bottom: 30px; }
.cat-rail { padding: 0; margin: 0; list-style: none; border-top: 1px solid rgba(124, 45, 18, .22); }
.cat-rail li {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr) 18px;
  align-items: baseline;
  gap: 10px;
  padding: 12px 2px;
  border-bottom: 1px solid rgba(124, 45, 18, .22);
  color: var(--muted);
}
.cat-rail b { font-size: 20px; font-weight: 900; letter-spacing: -.4px; }
.cat-rail small { font-family: var(--mono); font-size: 10.5px; text-align: right; }
.cat-rail i { color: var(--brown); font-style: normal; font-size: 13px; text-align: right; }
.cat-rail li.is-on b { color: var(--brown); }
.cat-rail li.is-on { background: linear-gradient(90deg, rgba(180, 83, 9, .1), transparent); }
.cat-rail li.is-on i { font-weight: 900; }

.poster-set { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; padding: 0 4px; }
.poster {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  aspect-ratio: 3 / 4;
  padding: 12px 11px 13px;
  margin: 0;
  border-radius: 6px;
  color: #FFF7E4;
  box-shadow: 0 14px 26px rgba(74, 32, 12, .22);
}
.poster span { font-size: 12px; font-weight: 800; }
.poster b { font-family: var(--mono); font-size: 30px; line-height: 1; opacity: .9; }
.poster i { font-family: var(--mono); font-size: 9.5px; font-style: normal; letter-spacing: .5px; opacity: .82; }
.poster-a { background: linear-gradient(160deg, #7C2D12, #B45309); transform: translateY(16px) rotate(-2deg); }
.poster-b { background: linear-gradient(160deg, #9A3412, #D97706); transform: translateY(-4px) rotate(1.5deg); }
.poster-c { background: linear-gradient(160deg, #451A03, #92400E); transform: translateY(22px) rotate(1deg); }
.poster-d { background: linear-gradient(160deg, #78350F, #B45309 88%); transform: translateY(2px) rotate(-1.5deg); }

.shelf-count {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, auto)) minmax(0, 1fr);
  align-items: center;
  gap: 10px clamp(14px, 3vw, 40px);
  padding: 16px 22px;
  margin-bottom: 34px;
  border-radius: 12px;
  background: var(--brown);
  color: var(--cream);
}
.shelf-count p { display: flex; align-items: baseline; gap: 8px; margin: 0; }
.shelf-count b { font-family: var(--mono); font-size: 24px; font-weight: 700; line-height: 1; }
.shelf-count span { font-size: 11.5px; opacity: .82; }
.shelf-count .shelf-note { justify-self: end; color: #F3DDB4; font-size: 11px; line-height: 1.6; text-align: right; }

/* features */
.features { padding: 66px 0 70px; border-bottom: 1px solid var(--line); background: var(--bg-2); }
.section-heading { margin-bottom: 28px; }
.section-heading h2, .download h2 { margin: 0; font-size: clamp(23px, 2.7vw, 32px); font-weight: 900; letter-spacing: -.5px; line-height: 1.32; color: var(--brown); }
.section-heading > p:last-child { max-width: 600px; margin: 10px 0 0; color: var(--muted); font-size: 13.5px; }
.section-heading-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(180px, 280px); align-items: end; gap: 22px; }
.section-heading-split > p:last-child { margin: 0 0 4px; }
.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.feature-card {
  position: relative;
  padding: 26px 24px 24px 74px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
}
.feature-no {
  position: absolute;
  top: 24px;
  left: 22px;
  color: #C98C4F;
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
}
.feature-card h3 { margin: 0 0 7px; font-size: 17px; font-weight: 900; color: var(--brown); }
.feature-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* shots */
.shots { padding: 66px 0 72px; }
.shot-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; align-items: stretch; }
.shot-card { position: relative; margin: 0; border-radius: 10px; overflow: hidden; background: #2A1A12; box-shadow: 0 16px 30px rgba(74, 32, 12, .18); }
.shot-card img { width: 100%; height: 100%; aspect-ratio: 9 / 16; object-fit: cover; object-position: center top; }
.shot-card figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 20px 12px 11px;
  background: linear-gradient(180deg, transparent, rgba(32, 16, 8, .9) 62%);
  color: #FFF4DE;
}
.shot-card figcaption b { color: #F5C87E; font-family: var(--mono); font-size: 9.5px; }
.shot-card figcaption span { display: flex; flex-direction: column; font-size: 12.5px; font-weight: 800; line-height: 1.35; }
.shot-card figcaption small { color: #DCC7AA; font-size: 10px; font-weight: 500; }

/* faq */
.faq { padding: 66px 0 72px; 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(22px, 4vw, 48px); }
.faq-heading { position: sticky; top: calc(var(--header-height) + 24px); align-self: start; }
.faq-list { border-top: 1px solid rgba(124, 45, 18, .2); }
.faq-list details { border-bottom: 1px solid rgba(124, 45, 18, .2); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 16px 0; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary h3 { margin: 0; color: var(--ink); font-size: 15px; font-weight: 900; }
.faq-list summary i { position: relative; flex: none; width: 22px; height: 22px; border: 1px solid var(--line); border-radius: 50%; background: var(--panel); }
.faq-list summary i::before,
.faq-list summary i::after { position: absolute; top: 50%; left: 50%; width: 9px; height: 1.5px; content: ""; background: var(--brown); 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 16px 0; margin: 0; color: var(--muted); font-size: 13.2px; line-height: 1.85; }

/* reviews */
.reviews { padding: 66px 0 72px; }
.review-list { display: grid; gap: 10px; padding: 0; margin: 0; list-style: none; }
.review-card {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  align-items: start;
  gap: 14px;
  padding: 16px 20px 16px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.review-no { color: #D9B98C; font-family: var(--mono); font-size: 26px; font-weight: 700; line-height: 1.05; }
.review-body { min-width: 0; }
.review-meta { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; }
.review-meta b { color: var(--brown); font-size: 13px; font-weight: 900; }
.review-meta time { color: #A98A6B; font-family: var(--mono); font-size: 10px; }
.review-card p { margin: 4px 0 0; color: #4A342A; font-size: 13px; line-height: 1.75; }

/* steps */
.steps { padding: 64px 0 70px; border-top: 1px solid var(--line); background: var(--bg-2); }
.steps-layout { display: grid; grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr); gap: clamp(20px, 4vw, 46px); }
.steps-heading { align-self: start; }
.step-list { position: relative; padding: 0 0 0 30px; margin: 0; list-style: none; }
.step-list::before { position: absolute; top: 8px; bottom: 14px; left: 6px; width: 2px; content: ""; background: linear-gradient(180deg, var(--brown), rgba(180, 83, 9, .15)); }
.step-list li { position: relative; padding-bottom: 26px; }
.step-list li:last-child { padding-bottom: 0; }
.step-list li::before {
  position: absolute;
  top: 6px;
  left: -30px;
  width: 12px;
  height: 12px;
  border: 2px solid var(--brown);
  border-radius: 50%;
  background: var(--bg-2);
  content: "";
}
.step-list span { display: block; color: var(--brown-soft); font-family: var(--mono); font-size: 11px; letter-spacing: 1.4px; }
.step-list h3 { margin: 3px 0 4px; font-size: 16px; font-weight: 900; color: var(--brown); }
.step-list p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }

/* download */
.download { padding: 30px 0 40px; }
.download-inner {
  padding: 46px clamp(22px, 5vw, 54px);
  border: 1px solid #9A3412;
  border-radius: 14px;
  background:
    radial-gradient(440px 240px at 12% 0%, rgba(254, 243, 199, .22), transparent 70%),
    linear-gradient(140deg, #7C2D12, #4A1D0B 86%);
  color: var(--cream);
  text-align: center;
}
.download .eyebrow { border-color: rgba(254, 243, 199, .35); background: rgba(254, 243, 199, .12); color: #FBE6B5; }
.download .eyebrow::before { background: #F5C87E; }
.download h2 { max-width: 640px; margin: 0 auto; color: #FFF7E4; }
.download-inner > p { max-width: 480px; margin: 12px auto 22px; color: #EBD3AE; font-size: 13.5px; }
.download .button-primary { background: var(--cream); color: var(--brown); box-shadow: 0 12px 24px rgba(0, 0, 0, .22); }
.download .button-primary:hover { background: #FFF7E4; }
.download-notes { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 22px; padding: 18px 0 0; margin: 24px auto 0; border-top: 1px solid rgba(254, 243, 199, .24); list-style: none; max-width: 720px; }
.download-notes li { color: #F0D9B4; font-family: var(--mono); font-size: 10.5px; }
.download-notes li::before { margin-right: 7px; content: "·"; color: #F5C87E; }

/* footer */
.site-footer { padding: 40px 0 48px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 16px 36px; align-items: start; }
.footer-brand strong { color: var(--brown); 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: var(--muted); font-size: 12px; }
.footer-nav a:hover { color: var(--brown); }
.footer-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; margin-top: 20px; padding-top: 15px; 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: #96775C; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1000px) {
  .hero-head { grid-template-columns: 1fr; align-items: start; gap: 16px; }
  .hero-head-side { padding-bottom: 0; }
  .hero-body { grid-template-columns: minmax(0, 210px) minmax(0, 1fr); gap: 20px; }
  .cat-rail b { font-size: 17px; }
  .poster b { font-size: 24px; }
  .faq-layout, .steps-layout { grid-template-columns: 1fr; gap: 18px; }
  .faq-heading { position: static; }
  .shelf-count { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .shelf-count .shelf-note { grid-column: 1 / -1; justify-self: start; text-align: left; }
}
@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    padding: 8px 24px 14px;
    border-bottom: 1px solid var(--line);
    background: var(--bg);
    box-shadow: 0 16px 26px rgba(90, 50, 20, .16);
  }
  .primary-nav.is-open { display: block; }
  .primary-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .primary-nav a { padding: 11px 0; border-bottom: 1px solid var(--line); }
}
@media (max-width: 768px) {
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { padding: 20px 20px 18px 64px; }
  .feature-no { top: 19px; left: 18px; font-size: 22px; }
  .shot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .poster-set { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .poster-a, .poster-c { transform: rotate(-1.5deg); }
  .poster-b, .poster-d { transform: rotate(1.5deg); }
  .hero-body { grid-template-columns: 1fr; }
  .cat-rail { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 0; }
  .cat-rail i { display: none; }
  .cat-rail li { grid-template-columns: minmax(0, auto) minmax(0, 1fr); border-top: 1px solid rgba(124, 45, 18, .22); }
  .cat-rail li:nth-child(odd) { padding-right: 14px; }
  .section-heading-split { grid-template-columns: 1fr; gap: 8px; }
  .section-heading-split > p:last-child { margin: 0; }
  .shelf-count { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .page-shell, .nav-shell { width: calc(100% - 30px); }
  .hero h1 { font-size: clamp(38px, 12vw, 52px); }
  .hero-subtitle { font-size: 16px; }
  .hero-lead { font-size: 13.5px; }
  .hero-head { padding: 36px 0 22px; }
  .poster-set { gap: 8px; }
  .poster { padding: 9px 8px 10px; }
  .poster b { font-size: 19px; }
  .poster span { font-size: 10.5px; }
  .poster i { font-size: 8.5px; }
  .shelf-count { padding: 14px 16px; border-radius: 10px; }
  .shelf-count b { font-size: 20px; }
  .review-card { grid-template-columns: 34px minmax(0, 1fr); gap: 10px; padding: 14px 15px 14px 12px; }
  .review-no { font-size: 19px; }
  .review-meta { flex-direction: column; gap: 1px; }
  .steps-layout { gap: 14px; }
  .download-inner { padding: 34px 18px; }
  .download-notes { gap: 6px 14px; }
  .footer-grid { grid-template-columns: 1fr; }
  .brand { font-size: 17px; gap: 7px; }
  .brand img { width: 30px; height: 30px; }
  .brand-tag { display: none; }
  .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; }
  .button { width: 100%; }
}