@charset "UTF-8";

:root {
  --bg: #0f1115;
  --bg-2: #14171d;
  --panel: #191d24;
  --line: #2a303a;
  --ink: #eef1e8;
  --muted: #98a1ae;
  --lime: #c8f04b;
  --lime-dim: #8fae2f;
  --shell: 1200px;
  --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) + 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, 17, 21, .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: -.3px; }
.brand img { width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 9px; object-fit: contain; background: #10141a; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  height: 19px;
  padding: 0 5px;
  border-radius: 3px;
  background: var(--lime);
  color: #14170c;
  font-family: var(--mono);
  font-size: 9.5px;
  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: #a7b0bb; 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: 6px;
  background: var(--lime);
  color: #14170c;
  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: 6px; 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 */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(600px 340px at 92% 4%, rgba(200, 240, 75, .12), transparent 72%),
    radial-gradient(440px 300px at 4% 96%, rgba(200, 240, 75, .05), transparent 74%),
    linear-gradient(180deg, #12151a 0%, var(--bg) 100%);
}
.hero-progress { position: absolute; top: 0; left: 0; right: 0; height: 3px; background: rgba(200, 240, 75, .12); z-index: 3; }
.hero-progress i { display: block; width: 63%; height: 100%; background: var(--lime); box-shadow: 0 0 16px rgba(200, 240, 75, .6); }
.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, .9fr);
  align-items: center;
  gap: clamp(26px, 4vw, 60px);
  padding: 54px 0 58px;
}
.hero-copy { min-width: 0; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  color: #b6bec8;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.5px;
}
.hero-kicker b {
  padding: 3px 8px;
  border-radius: 3px;
  background: var(--lime);
  color: #14170c;
  font-size: 9.5px;
  font-weight: 900;
  letter-spacing: 1.2px;
}
.hero h1 {
  margin: 0;
  font-size: clamp(44px, 6.2vw, 78px);
  font-weight: 900;
  letter-spacing: clamp(-2px, -.4vw, -3px);
  line-height: 1;
}
.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: 560px; margin: 12px 0 0; color: var(--muted); font-size: 14.5px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; margin: 24px 0 0; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 14px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 900;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}
.button-primary { background: var(--lime); color: #14170c; box-shadow: 0 12px 26px rgba(200, 240, 75, .16); }
.button-primary:hover { background: #dcff72; transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 32px; font-size: 15px; }
.text-link { color: #c7ced8; border-bottom: 1px dashed #4b5462; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 5px; color: var(--lime); }

/* file panel */
.file-panel {
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(23, 27, 34, .86);
  overflow: hidden;
}
.file-head, .file-list li { display: grid; grid-template-columns: minmax(0, 1fr) 78px 66px; align-items: center; gap: 10px; }
.file-head {
  padding: 9px 16px;
  border-bottom: 1px solid var(--line);
  color: #7d8794;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 1px;
}
.file-head span:not(:first-child) { text-align: right; }
.file-list { padding: 0; margin: 0; list-style: none; }
.file-list li { padding: 11px 16px; border-bottom: 1px solid rgba(42, 48, 58, .7); }
.file-list b { overflow: hidden; font-size: 13px; font-weight: 700; text-overflow: ellipsis; white-space: nowrap; }
.file-list b::before { margin-right: 9px; color: var(--lime); content: "▸"; }
.file-list em { color: #8d96a3; font-family: var(--mono); font-size: 11px; font-style: normal; text-align: right; }
.file-list i { padding: 1px 0; border-radius: 3px; font-size: 10px; font-style: normal; text-align: right; }
.is-done { color: var(--lime); }
.is-wait { color: #e6c25a; }
.is-clear { color: #8b93a0; }
.file-total { padding: 10px 16px; margin: 0; color: #79828f; font-family: var(--mono); font-size: 10.5px; }

.hero-poster {
  position: relative;
  justify-self: center;
  width: min(100%, 330px);
  margin: 0;
}
.phone-shell {
  padding: 9px;
  border: 1px solid #333a45;
  border-radius: 30px;
  background: linear-gradient(160deg, #242a33, #12151a 70%);
  box-shadow: 0 30px 60px rgba(0, 0, 0, .6), inset 0 0 0 1px rgba(255, 255, 255, .04);
}
.phone-shell::before { display: block; width: 54px; height: 4px; margin: 0 auto 8px; border-radius: 3px; background: #3a424e; content: ""; }
.phone-shell img { width: 100%; height: auto; aspect-ratio: 465 / 1024; object-fit: cover; border-radius: 22px; }
.hero-badge {
  position: absolute;
  left: -18px;
  bottom: 26px;
  padding: 9px 16px 10px;
  border: 1px solid var(--lime-dim);
  border-radius: 5px;
  background: #10140c;
  box-shadow: 0 12px 26px rgba(0, 0, 0, .5);
}
.hero-badge b { display: block; color: var(--lime); font-family: var(--mono); font-size: 11.5px; letter-spacing: .4px; line-height: 1.5; }
.hero-badge span { display: block; color: #8f9a86; font-size: 10.5px; }

/* features */
.features { padding: 74px 0 78px; 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, 34px); font-weight: 900; letter-spacing: -.8px; 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(210px, 300px); 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 {
  padding: 24px 20px 22px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--lime);
  border-radius: 0 0 8px 8px;
  background: var(--panel);
}
.feature-no { display: block; margin-bottom: 14px; color: var(--lime); font-family: var(--mono); font-size: 12px; 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 */
.shots { padding: 74px 0 80px; }
.shot-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 13px; }
.shot-card { margin: 0; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); overflow: hidden; }
.shot-card img { width: 100%; height: auto; aspect-ratio: 465 / 1024; object-fit: cover; object-position: center 4%; }
.shot-card figcaption { display: flex; align-items: baseline; gap: 8px; padding: 11px 12px 12px; border-top: 1px solid var(--line); }
.shot-card figcaption b { color: var(--lime); font-family: var(--mono); font-size: 10px; }
.shot-card figcaption span { display: flex; flex-direction: column; font-size: 12.5px; font-weight: 800; line-height: 1.4; }
.shot-card figcaption small { color: var(--muted); font-size: 10.5px; font-weight: 500; }

/* faq */
.faq { padding: 72px 0 76px; border-top: 1px solid var(--line); background: var(--bg-2); }
.faq-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.faq-grid details { border: 1px solid var(--line); border-radius: 8px; background: var(--panel); }
.faq-grid summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 17px;
  cursor: pointer;
  list-style: none;
}
.faq-grid summary::-webkit-details-marker { display: none; }
.faq-grid summary h3 { margin: 0; font-size: 15px; font-weight: 900; }
.faq-grid summary i { position: relative; flex: none; width: 22px; height: 22px; border: 1px solid var(--line); border-radius: 4px; }
.faq-grid summary i::before,
.faq-grid summary i::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 9px;
  height: 1.5px;
  content: "";
  background: var(--lime);
  transform: translate(-50%, -50%);
}
.faq-grid summary i::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform .2s ease; }
.faq-grid details[open] summary i::after { transform: translate(-50%, -50%) rotate(0); }
.faq-grid details p { padding: 0 17px 16px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* reviews */
.reviews { padding: 74px 0 78px; }
.review-list { display: grid; gap: 10px; padding: 0; margin: 0; list-style: none; }
.review-card {
  display: grid;
  grid-template-columns: 122px minmax(0, 1fr);
  align-items: start;
  gap: 18px;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
  border-radius: 6px;
  background: var(--panel);
}
.review-meta { display: flex; flex-direction: column; gap: 3px; }
.review-meta b { color: var(--lime); font-size: 13px; font-weight: 900; }
.review-meta time { color: #78828f; font-family: var(--mono); font-size: 9.5px; }
.review-card p { margin: 0; color: #b5bdc7; font-size: 13px; line-height: 1.8; }

/* steps */
.steps { padding: 70px 0 76px; border-top: 1px solid var(--line); background: var(--bg-2); }
.step-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; padding: 0; margin: 0; list-style: none; counter-reset: step; }
.step-list li { position: relative; padding: 20px 22px 22px; border: 1px dashed #39414d; border-radius: 8px; background: rgba(25, 29, 36, .6); }
.step-list li:not(:last-child)::after {
  position: absolute;
  top: 36px;
  right: -14px;
  width: 14px;
  height: 1px;
  content: "";
  background: var(--lime-dim);
}
.step-list span { display: block; margin-bottom: 8px; color: var(--lime); font-family: var(--mono); font-size: 20px; font-weight: 700; line-height: 1; }
.step-list h3 { margin: 0 0 6px; font-size: 16px; font-weight: 900; }
.step-list p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* download */
.download { padding: 30px 0; }
.download-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 26px 44px;
  padding: 40px clamp(24px, 4vw, 52px);
  border: 1px solid #3d4620;
  border-radius: 10px;
  background:
    linear-gradient(120deg, rgba(200, 240, 75, .1), transparent 58%),
    #1a1f18;
}
.download h2 { max-width: 560px; color: var(--ink); }
.download-inner > .download-copy > p { max-width: 520px; margin: 10px 0 0; color: #a3ac9b; font-size: 13.5px; }
.download-side { display: flex; flex-direction: column; align-items: flex-end; gap: 14px; }
.download-side .button { white-space: nowrap; }
.download-notes { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; padding: 0; margin: 0; list-style: none; }
.download-notes li { color: #8e9a83; font-family: var(--mono); font-size: 10.5px; }

/* 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: #b2bbc6; 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: 22px; 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: #78828f; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1100px) {
  .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: 44px 0 48px; }
  .hero-poster { justify-self: start; width: min(310px, 78%); }
  .hero-badge { left: auto; right: -10px; }
  .shot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .faq-grid { grid-template-columns: 1fr; }
  .review-card { grid-template-columns: 1fr; gap: 6px; }
  .review-meta { flex-direction: row; align-items: baseline; justify-content: space-between; }
  .step-list { grid-template-columns: 1fr; }
  .step-list li:not(:last-child)::after { top: auto; right: auto; bottom: -14px; left: 34px; width: 1px; height: 14px; }
  .download-inner { grid-template-columns: 1fr; }
  .download-side { align-items: flex-start; }
  .download-notes { align-items: flex-start; }
}
@media (max-width: 600px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .hero h1 { font-size: clamp(38px, 13vw, 54px); }
  .hero-lead { font-size: 13.5px; }
  .file-head, .file-list li { grid-template-columns: minmax(0, 1fr) 66px 58px; gap: 6px; }
  .file-list b, .file-head span:first-child { font-size: 12px; }
  .shot-grid { grid-template-columns: 1fr; }
  .shot-card img { aspect-ratio: 4 / 3; object-position: center 8%; }
  .section-heading-split { grid-template-columns: 1fr; gap: 10px; }
  .section-heading-split > p:last-child { margin: 0; }
  .download h2 { font-size: 22px; }
  .download-side .button { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .brand { font-size: 17px; gap: 8px; }
  .brand img { width: 32px; height: 32px; }
  .brand-tag { display: none; }
  .nav-actions { gap: 8px; }
  .nav-download { min-height: 36px; padding: 0 10px; font-size: 11px; gap: 5px; }
  .nav-download svg { width: 14px; height: 14px; }
  .menu-toggle { width: 36px; height: 36px; }
}
@media (max-width: 380px) {
  .brand { font-size: 15px; gap: 7px; }
  .brand img { width: 30px; height: 30px; }
  .brand-tag { display: none; }
  .nav-actions { gap: 8px; }
  .nav-download { min-height: 34px; padding: 0 8px; font-size: 10.5px; gap: 4px; }
  .nav-download svg { width: 13px; height: 13px; }
  .menu-toggle { width: 34px; height: 34px; }
  .hero h1 { font-size: 34px; }
  .hero-subtitle { font-size: 16px; }
  .button { width: 100%; padding: 0 12px; font-size: 13px; }
  .file-total { font-size: 9.5px; }
}