@charset "UTF-8";

:root {
  --cream: #fdf7e6;
  --cream-2: #f8efd6;
  --card: #fffdf6;
  --line: #e4d8b8;
  --ink: #2b2620;
  --muted: #6f6553;
  --green: #3f7a46;
  --green-deep: #2c5a33;
  --green-soft: #e6f0dd;
  --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(--cream);
  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(--green); outline-offset: 4px; }
.page-shell { width: min(calc(100% - 48px), var(--shell)); margin: 0 auto; }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  color: var(--green);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.4px;
  line-height: 1.4;
}
.eyebrow::before { flex: none; width: 9px; height: 9px; border-radius: 50%; content: ""; background: var(--green); }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--line);
  background: rgba(253, 247, 230, .96);
  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; font-size: 21px; font-weight: 900; letter-spacing: .5px; }
.brand img { width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 50%; object-fit: contain; background: var(--green-soft); }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 21px;
  height: 21px;
  border-radius: 50%;
  background: var(--green);
  color: #fffdf2;
  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, 1.7vw, 24px); padding: 0; margin: 0; list-style: none; }
.primary-nav a { display: block; padding: 7px 0; border-bottom: 2px solid transparent; color: #6b6353; font-size: 13px; font-weight: 700; }
.primary-nav a:hover { border-bottom-color: var(--green); color: var(--green-deep); }
.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 20px;
  border: 1px solid var(--green);
  border-radius: 999px;
  background: var(--green);
  color: #fdfaee;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease;
}
.nav-download:hover { background: var(--green-deep); }
.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: var(--card); 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: avatar rail | topic flow | tag wall */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(620px 380px at 88% 4%, rgba(63, 122, 70, .16), transparent 70%),
    radial-gradient(460px 300px at 4% 90%, rgba(63, 122, 70, .1), transparent 72%),
    var(--cream-2);
}
.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image: radial-gradient(rgba(63, 122, 70, .16) 1.4px, transparent 1.4px);
  background-size: 26px 26px;
  mask-image: linear-gradient(180deg, #000, transparent 74%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 168px minmax(0, 1fr) 214px;
  align-items: start;
  gap: clamp(18px, 2.6vw, 38px);
  padding: 46px 0 54px;
}
.rail-label { margin: 0 0 12px; color: #7c7462; font-family: var(--mono); font-size: 10px; letter-spacing: 1.6px; }

.avatar-rail ul { display: flex; flex-direction: column; gap: 12px; padding: 0; margin: 0; list-style: none; }
.avatar-rail li { display: flex; align-items: center; gap: 9px; }
.avatar-rail i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 2px solid #fff;
  border-radius: 50%;
  box-shadow: 0 3px 0 rgba(63, 122, 70, .16);
  color: #fffdf2;
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
  flex: none;
}
.avatar-rail .a1 { background: #c96a4a; }
.avatar-rail .a2 { background: #6b7fa8; }
.avatar-rail .a3 { background: #3f7a46; }
.avatar-rail .a4 { background: #a3743f; }
.avatar-rail .a5 { background: #8a5f86; }
.avatar-rail b { color: #5d5648; font-size: 12px; font-weight: 700; }

.hero-center { min-width: 0; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 10px;
  color: #6d6653;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.5px;
}
.hero-kicker b {
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--green);
  color: #fdfaee;
  font-size: 9.5px;
  font-weight: 900;
  letter-spacing: 1.1px;
}
.hero h1 { margin: 0; font-size: clamp(50px, 7.2vw, 86px); font-weight: 900; letter-spacing: clamp(-1px, -.3vw, -3px); line-height: 1; }
.hero-subtitle { margin: 12px 0 0; color: var(--green-deep); font-size: clamp(17px, 1.9vw, 22px); font-weight: 800; line-height: 1.45; }
.hero-lead { max-width: 520px; margin: 10px 0 0; color: var(--muted); font-size: 14.5px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; margin-top: 22px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 11px;
  padding: 0 27px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 900;
  transition: transform .18s ease, background .18s ease;
}
.button-primary { background: var(--green); color: #fdfaee; box-shadow: 0 12px 24px rgba(63, 122, 70, .24); }
.button-primary:hover { background: var(--green-deep); transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 34px; font-size: 15px; }
.text-link { color: #5d5648; border-bottom: 1px dashed #b7a98a; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 5px; color: var(--green); }

.topic-flow { display: grid; gap: 10px; padding: 0; margin: 24px 0 0; list-style: none; }
.topic-flow li {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
  box-shadow: 0 3px 0 rgba(163, 143, 106, .1);
}
.topic-flow li.is-plain { grid-template-columns: minmax(0, 1fr); padding: 12px 15px; border-style: dashed; background: rgba(255, 253, 246, .66); }
.topic-cover { margin: 0; overflow: hidden; border-radius: 9px; }
.topic-cover img { width: 100%; height: 86px; object-fit: cover; object-position: center top; }
.topic-body { min-width: 0; }
.topic-tag { margin: 0 0 3px; color: var(--green); font-size: 11px; font-weight: 800; }
.topic-body b { display: block; font-size: 14px; font-weight: 900; line-height: 1.5; }
.topic-body span { display: block; margin-top: 4px; color: #8b8271; font-family: var(--mono); font-size: 9.5px; }

.tag-wall { border: 1px solid var(--line); border-radius: 16px; padding: 14px 15px; background: var(--card); }
.tag-wall ul { padding: 0; margin: 0; list-style: none; }
.tag-wall li { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; padding: 8px 0; border-bottom: 1px dashed var(--line); }
.tag-wall li:last-child { border-bottom: none; }
.tag-wall b { color: #463f33; font-size: 12.5px; font-weight: 800; }
.tag-wall span { color: var(--green); font-family: var(--mono); font-size: 10px; }

/* features: 2x2 */
.features { padding: 70px 0 74px; border-bottom: 1px solid var(--line); }
.section-heading { margin-bottom: 30px; }
.section-heading h2, .download h2 { margin: 0; font-size: clamp(24px, 2.7vw, 34px); font-weight: 900; letter-spacing: -.6px; line-height: 1.32; }
.section-heading > p:last-child { max-width: 600px; margin: 10px 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: 24px; }
.section-heading-split > p:last-child { margin: 0 0 4px; }
.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 13px; }
.feature-card {
  position: relative;
  padding: 22px 22px 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
  box-shadow: 0 4px 0 rgba(163, 143, 106, .12);
}
.feature-no {
  position: absolute;
  top: 18px;
  right: 20px;
  color: #d8cbaa;
  font-family: var(--mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
}
.feature-card h3 { margin: 0 0 7px; font-size: 17px; font-weight: 900; }
.feature-card p { margin: 0; max-width: 92%; color: var(--muted); font-size: 13px; line-height: 1.85; }

/* shots: tilted prints */
.shots { padding: 72px 0 82px; background: var(--cream-2); border-bottom: 1px solid var(--line); }
.poster-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; padding: 6px 0; }
.poster-card {
  margin: 0;
  padding: 9px 9px 4px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--card);
  box-shadow: 0 8px 20px rgba(140, 120, 80, .16);
  transform: rotate(-1.4deg);
}
.poster-card:nth-child(2) { transform: rotate(1.1deg); }
.poster-card:nth-child(3) { transform: rotate(-.7deg); }
.poster-card img { width: 100%; height: auto; aspect-ratio: 3 / 4; border-radius: 3px; object-fit: cover; object-position: top center; }
.poster-card figcaption { display: flex; align-items: baseline; gap: 8px; padding: 9px 3px 8px; }
.poster-card figcaption b { color: var(--green); font-family: var(--mono); font-size: 10px; }
.poster-card figcaption span { display: flex; flex-direction: column; font-size: 13px; font-weight: 800; line-height: 1.4; }
.poster-card figcaption small { color: #8b8271; font-size: 10.5px; font-weight: 500; }

/* faq */
.faq { padding: 70px 0 76px; }
.faq-layout { display: grid; grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); gap: clamp(24px, 4vw, 52px); }
.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: 16px 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 #cfc2a2; border-radius: 50%; background: var(--card); }
.faq-list summary i::before, .faq-list summary i::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 1.5px;
  content: "";
  background: var(--green);
  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: 13.5px; line-height: 1.85; }

/* reviews: 3 columns */
.reviews { padding: 70px 0 76px; border-top: 1px solid var(--line); background: var(--cream-2); }
.review-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; padding: 0; margin: 0; list-style: none; }
.review-card {
  display: flex;
  flex-direction: column;
  padding: 18px 18px 17px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
  box-shadow: 0 4px 0 rgba(163, 143, 106, .12);
}
.review-meta { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 5px; padding-bottom: 9px; margin-bottom: 9px; border-bottom: 1px dashed var(--line); }
.review-meta b { color: var(--green-deep); font-size: 13px; font-weight: 900; }
.review-meta time { color: #8b8271; font-family: var(--mono); font-size: 9px; }
.review-card p { margin: 0; color: #5f5748; font-size: 13px; line-height: 1.8; }

/* steps: horizontal with round numbers */
.steps { padding: 66px 0 72px; }
.step-list { position: relative; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; padding: 0; margin: 0; list-style: none; }
.step-list::before {
  position: absolute;
  top: 26px;
  left: 6%;
  right: 6%;
  border-top: 2px dashed #cfc2a2;
  content: "";
}
.step-list li { position: relative; padding-top: 54px; }
.step-list span {
  position: absolute;
  top: 0;
  left: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border: 2px solid var(--green);
  border-radius: 50%;
  background: var(--cream);
  color: var(--green-deep);
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
}
.step-list h3 { margin: 0 0 5px; font-size: 16px; font-weight: 900; }
.step-list p { margin: 0; max-width: 300px; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* download: text left, button right */
.download { padding: 24px 0 30px; }
.download-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 26px;
  padding: 40px clamp(22px, 4.4vw, 52px);
  border: 1px solid #cddaBF;
  border-radius: 20px;
  background:
    radial-gradient(420px 220px at 92% -20%, rgba(63, 122, 70, .18), transparent 70%),
    var(--green-soft);
}
.download h2 { color: var(--green-deep); }
.download-copy > p:nth-of-type(2) { margin: 10px 0 0; color: #55604a; font-size: 14px; }
.download-notes { display: flex; flex-wrap: wrap; gap: 6px 16px; padding: 0; margin: 14px 0 0; list-style: none; }
.download-notes li { color: #5f6a53; font-family: var(--mono); font-size: 10.5px; }
.download-notes li::before { margin-right: 5px; content: "·"; color: var(--green); }
.download-side { justify-self: end; text-align: center; }
.download-hint { margin: 10px 0 0; color: #5f6a53; font-family: var(--mono); font-size: 10px; }

/* 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 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: #5d5648; font-size: 12px; }
.footer-nav a:hover { color: var(--green-deep); }
.footer-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; 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: #8b8271; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 132px minmax(0, 1fr); grid-template-areas: "center center" "avatar tags"; }
  .hero-center { grid-area: center; }
  .avatar-rail { grid-area: avatar; }
  .avatar-rail ul { flex-direction: row; flex-wrap: wrap; gap: 8px 12px; }
  .avatar-rail b { font-size: 11px; }
  .tag-wall { grid-area: tags; }
  .tag-wall ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 16px; }
}
@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(--cream);
    box-shadow: 0 16px 26px rgba(120, 100, 60, .18);
  }
  .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); }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-heading { position: static; }
  .review-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step-list { grid-template-columns: 1fr; gap: 22px; }
  .step-list::before { display: none; }
  .download-inner { grid-template-columns: 1fr; }
  .download-side { justify-self: start; text-align: left; }
}
@media (max-width: 640px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .hero-grid { grid-template-columns: 1fr; grid-template-areas: "center" "avatar" "tags"; padding: 34px 0 40px; }
  .hero h1 { font-size: clamp(44px, 15vw, 62px); }
  .topic-flow li { grid-template-columns: 96px minmax(0, 1fr); }
  .topic-cover img { height: 74px; }
  .feature-grid { grid-template-columns: 1fr; }
  .poster-row { grid-auto-flow: column; grid-auto-columns: 80%; grid-template-columns: none; gap: 12px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 6px 4px; }
  .poster-card { scroll-snap-align: start; }
  .review-list { grid-template-columns: 1fr; }
  .section-heading-split { grid-template-columns: 1fr; gap: 8px; }
  .section-heading-split > p:last-child { margin: 0; }
  .tag-wall ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  .brand { font-size: 17px; }
  .brand img { width: 30px; height: 30px; }
  .brand-tag { display: none; }
  .nav-actions { gap: 6px; }
  .nav-download { min-height: 34px; padding: 0 12px; font-size: 11px; gap: 5px; }
  .nav-download svg { width: 14px; height: 14px; }
  .menu-toggle { width: 34px; height: 34px; }
  .hero h1 { font-size: 40px; }
  .hero-subtitle { font-size: 15px; }
  .button { width: 100%; }
}