@charset "UTF-8";

:root {
  --bg: #f5e6c8;
  --bg-2: #fbf3e2;
  --panel: #fffaf0;
  --line: #ddc8a1;
  --ink: #3a2517;
  --muted: #7a6146;
  --brown: #7b4b2a;
  --brown-deep: #55301a;
  --amber: #c98a3c;
  --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(--brown); outline-offset: 4px; }
.page-shell { width: min(calc(100% - 48px), var(--shell)); margin: 0 auto; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 12px;
  color: var(--brown);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.2px;
  line-height: 1.4;
}
.eyebrow::before { width: 14px; height: 2px; content: ""; background: currentColor; border-radius: 2px; }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--line);
  background: rgba(245, 230, 200, .95);
  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: 20px; font-weight: 900; letter-spacing: -.3px; }
.brand img { width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 50%; object-fit: contain; background: #fff7e8; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: var(--brown);
  color: #fdf3df;
  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(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: #7a5f42; font-size: 13px; font-weight: 700; }
.primary-nav a:hover { border-bottom-color: var(--brown); color: var(--brown-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 17px;
  border: 1px solid var(--brown);
  border-radius: 999px;
  background: var(--brown);
  color: #fdf3df;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease;
}
.nav-download:hover { background: transparent; color: var(--brown); }
.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(--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: bun mark + centered copy + fan of three rounded cards */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(520px 300px at 50% 4%, rgba(255, 255, 255, .85), transparent 72%),
    radial-gradient(420px 260px at 92% 88%, rgba(201, 138, 60, .18), transparent 74%),
    linear-gradient(180deg, #fbf1dc 0%, var(--bg) 100%);
}
.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image: radial-gradient(rgba(123, 75, 42, .16) 1px, transparent 1.4px);
  background-size: 26px 26px;
  mask-image: radial-gradient(70% 60% at 50% 18%, #000, transparent 78%);
  pointer-events: none;
}
.hero-stack { position: relative; z-index: 2; padding: 46px 0 54px; text-align: center; }
.hero-bun {
  position: relative;
  width: 152px;
  height: 132px;
  margin: 0 auto 20px;
  border-radius: 50% 50% 45% 45% / 62% 62% 38% 38%;
  background: radial-gradient(circle at 35% 26%, #fff9ea, #eed3a3 56%, #cfa262 100%);
  box-shadow: inset -12px -16px 26px rgba(123, 75, 42, .2), inset 8px 8px 18px rgba(255, 255, 255, .6), 0 18px 30px rgba(123, 75, 42, .18);
}
.hero-bun::before {
  position: absolute;
  top: -13px;
  left: 50%;
  width: 46px;
  height: 30px;
  content: "";
  border-radius: 50%;
  background: #f2d9a9;
  box-shadow: inset -4px -4px 8px rgba(123, 75, 42, .14);
  transform: translateX(-50%);
}
.hero-bun::after {
  position: absolute;
  top: -4px;
  left: 50%;
  width: 15px;
  height: 15px;
  content: "";
  border-radius: 50%;
  background: #e6c48c;
  transform: translateX(-50%);
}
.hero-bun i {
  position: absolute;
  top: 6px;
  left: calc(50% - 1px);
  width: 2px;
  height: 38px;
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(123, 75, 42, .34), rgba(123, 75, 42, 0));
  transform-origin: top center;
}
.hero-bun i:nth-child(1) { transform: rotate(-42deg); }
.hero-bun i:nth-child(2) { transform: rotate(-21deg); }
.hero-bun i:nth-child(3) { transform: rotate(0deg); }
.hero-bun i:nth-child(4) { transform: rotate(21deg); }
.hero-bun i:nth-child(5) { transform: rotate(42deg); }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 14px;
  color: #836646;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.5px;
}
.hero-kicker b {
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--brown);
  color: #fdf3df;
  font-size: 9.5px;
  font-weight: 900;
  letter-spacing: 1.2px;
}
.hero h1 {
  margin: 0;
  color: var(--brown-deep);
  font-size: clamp(48px, 7.2vw, 88px);
  font-weight: 900;
  letter-spacing: clamp(-2px, -.5vw, -4px);
  line-height: 1.02;
}
.hero-subtitle {
  margin: 12px 0 0;
  color: var(--brown);
  font-size: clamp(18px, 2.1vw, 24px);
  font-weight: 800;
  line-height: 1.4;
}
.hero-lead { max-width: 700px; margin: 14px auto 0; color: var(--muted); font-size: 14.5px; }
.hero-actions { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 18px; margin-top: 26px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 13px;
  padding: 0 28px;
  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(--brown); color: #fdf3df; box-shadow: 0 12px 24px rgba(85, 48, 26, .24); }
.button-primary:hover { background: var(--brown-deep); transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 34px; font-size: 15px; }
.text-link { color: #6b4d30; border-bottom: 1px dashed #b08a5d; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 4px; color: var(--brown); }

.fan-row {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 14px;
  padding: 0;
  margin: 38px 0 -18px;
  list-style: none;
}
.fan-card {
  position: relative;
  width: 27%;
  max-width: 236px;
  padding: 7px 7px 0;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fffdf7;
  box-shadow: 0 16px 28px rgba(85, 48, 26, .18);
  transform-origin: 50% 118%;
}
.fan-card img { width: 100%; height: auto; aspect-ratio: 3 / 4; object-fit: cover; object-position: center 8%; border-radius: 11px; }
.fan-card:nth-child(1) { transform: rotate(-7deg) translateY(14px); }
.fan-card:nth-child(2) { z-index: 2; transform: translateY(-8px); }
.fan-card:nth-child(3) { transform: rotate(7deg) translateY(14px); }
.fan-tag {
  display: block;
  padding: 8px 4px 10px;
  color: var(--brown-deep);
  font-size: 12.5px;
  font-weight: 900;
  line-height: 1.3;
}
.fan-tag small { display: block; margin-top: 2px; color: #8a6c48; font-size: 10px; font-weight: 500; }

/* shared section headings */
.section-heading { margin-bottom: 30px; }
.section-heading h2, .download h2 { margin: 0; font-size: clamp(24px, 2.8vw, 34px); font-weight: 900; letter-spacing: -.7px; line-height: 1.3; }
.section-heading > p:last-child { max-width: 640px; margin: 11px 0 0; color: var(--muted); font-size: 14px; }
.section-heading-center { text-align: center; }
.section-heading-center > p:last-child { margin-left: auto; margin-right: auto; }
.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 4px; }

/* features: four across */
.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: 13px; }
.feature-card {
  position: relative;
  padding: 22px 20px 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: inset 0 -18px 26px rgba(201, 138, 60, .06);
}
.feature-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  margin-bottom: 12px;
  border-radius: 50%;
  background: #f0dfbc;
  color: var(--brown);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .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: four frames in one row */
.shots { padding: 68px 0 72px; }
.shot-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.shot-card { margin: 0; padding: 8px 8px 0; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); }
.shot-card img { width: 100%; height: auto; aspect-ratio: 9 / 16; object-fit: cover; object-position: center 6%; border-radius: 9px; }
.shot-card figcaption { display: flex; align-items: baseline; gap: 7px; padding: 10px 4px 11px; }
.shot-card figcaption b { color: var(--amber); font-family: var(--mono); font-size: 10px; }
.shot-card figcaption span { display: flex; flex-direction: column; font-size: 13px; font-weight: 800; line-height: 1.35; }
.shot-card figcaption small { color: var(--muted); font-size: 10.5px; font-weight: 500; }

/* 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, .74fr) minmax(0, 1.26fr); gap: clamp(24px, 4vw, 54px); }
.faq-heading { position: sticky; top: calc(var(--header-height) + 24px); 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 #c9ab7c; 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(--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 28px 17px 0; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.85; }

/* reviews: three across */
.reviews { padding: 68px 0 74px; }
.review-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; padding: 0; margin: 0; list-style: none; }
.review-card { padding: 18px 19px 18px 18px; border: 1px solid var(--line); border-top: 3px solid var(--brown); border-radius: 12px; background: var(--panel); }
.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 dashed #e3d0ad; }
.review-meta b { color: var(--brown-deep); font-size: 13px; font-weight: 900; }
.review-meta time { color: #9c8161; font-family: var(--mono); font-size: 9.5px; }
.review-card p { margin: 0; color: #6b5238; font-size: 13px; line-height: 1.8; }

/* steps: vertical rail */
.steps { padding: 64px 0 70px; border-top: 1px solid var(--line); background: var(--bg-2); }
.step-list { display: grid; gap: 10px; padding: 0; margin: 0; list-style: none; }
.step-list li {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  align-items: center;
  gap: 18px;
  padding: 18px 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
}
.step-list li > span {
  color: var(--amber);
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  text-align: center;
}
.step-list h3 { margin: 0 0 3px; font-size: 16.5px; font-weight: 900; }
.step-list p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }

/* download */
.download { padding: 30px 0; }
.download-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(22px, 4vw, 56px);
  padding: 44px clamp(22px, 4.4vw, 54px);
  border-radius: 20px;
  background:
    radial-gradient(380px 220px at 92% 6%, rgba(255, 236, 199, .28), transparent 70%),
    linear-gradient(120deg, #6d4023, #7b4b2a 58%, #8a5a34);
  color: #fdf3df;
}
.download-copy { min-width: 0; }
.download .eyebrow { color: #eccf9c; }
.download h2 { max-width: 560px; color: #fff8ea; }
.download-inner p { max-width: 460px; margin: 11px 0 0; color: #e3cca6; font-size: 13.5px; }
.download-action { flex: none; display: flex; flex-direction: column; align-items: flex-end; gap: 14px; }
.download .button-primary { background: #f8e9c9; color: #4d2c15; box-shadow: 0 12px 24px rgba(30, 16, 6, .3); }
.download .button-primary:hover { background: #fff8ea; }
.download-notes { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px 16px; padding: 0; margin: 0; list-style: none; }
.download-notes li { color: #e0c69c; font-family: var(--mono); font-size: 10.5px; }
.download-notes li::before { margin-right: 6px; 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: 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: #6f5539; font-size: 12px; }
.footer-nav a:hover { color: var(--brown-deep); }
.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: #94795a; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .shot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .review-list { 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(85, 48, 26, .16);
  }
  .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; }
  .download-inner { flex-direction: column; align-items: flex-start; }
  .download-action { align-items: flex-start; }
  .download-notes { justify-content: flex-start; }
}
@media (max-width: 600px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .hero-stack { padding: 34px 0 40px; }
  .hero-bun { width: 118px; height: 102px; margin-bottom: 16px; }
  .hero-bun i { height: 30px; }
  .hero-bun::before { width: 38px; height: 24px; top: -11px; }
  .hero h1 { font-size: clamp(42px, 13vw, 56px); }
  .hero-lead { font-size: 14px; }
  .fan-row { gap: 8px; margin: 28px 0 -10px; }
  .fan-card { width: calc((100% - 16px) / 3); padding: 5px 5px 0; border-radius: 11px; }
  .fan-card:nth-child(1) { transform: translateY(10px); }
  .fan-card:nth-child(2) { transform: translateY(-4px); }
  .fan-card:nth-child(3) { transform: translateY(10px); }
  .fan-card img { border-radius: 7px; }
  .fan-tag { padding: 6px 2px 7px; font-size: 11px; }
  .fan-tag small { font-size: 9px; }
  .section-heading-split { grid-template-columns: 1fr; gap: 9px; }
  .section-heading-split > p:last-child { margin: 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .shot-grid { gap: 10px; }
  .shot-card { padding: 6px 6px 0; }
  .shot-card figcaption { padding: 8px 2px 9px; }
  .review-list { grid-template-columns: 1fr; }
  .step-list li { grid-template-columns: 52px minmax(0, 1fr); gap: 12px; padding: 16px 16px; }
  .step-list li > span { font-size: 21px; }
  .footer-grid { grid-template-columns: 1fr; }
  .download-inner { padding: 34px 22px; border-radius: 16px; }
}
@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 10px; 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: 16px; }
  .button { width: 100%; }
  .fan-tag { font-size: 10px; }
  .fan-tag small { display: none; }
}