@charset "UTF-8";

:root {
  --bg: #101014;
  --bg-2: #0b0b0f;
  --panel: #17171c;
  --line: #2a2a31;
  --ink: #f4f3ef;
  --muted: #9b9aa4;
  --yellow: #f5d300;
  --shell: 1200px;
  --header-height: 68px;
  --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: 1.7;
}
img { display: block; max-width: 100%; height: auto; }
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(--yellow); 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 12px;
  color: var(--yellow);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.2px;
  line-height: 1.4;
}
.eyebrow::before { width: 15px; height: 2px; content: ""; background: currentColor; }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--line);
  background: rgba(16, 16, 20, .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: 21px; font-weight: 900; letter-spacing: -1px; }
.brand img { width: 36px; height: 36px; border-radius: 9px; object-fit: contain; background: #24242b; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 19px;
  height: 19px;
  border-radius: 4px;
  background: var(--yellow);
  color: #14140f;
  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(12px, 1.8vw, 24px); padding: 0; margin: 0; list-style: none; }
.primary-nav a { display: block; padding: 6px 0; color: #a9a8b2; font-size: 13px; font-weight: 700; }
.primary-nav a:hover { color: var(--yellow); }
.nav-actions { display: flex; align-items: center; flex: none; gap: 10px; }
.nav-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  gap: 7px;
  padding: 0 16px;
  border: 1px solid var(--yellow);
  border-radius: 4px;
  background: var(--yellow);
  color: #14140f;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease;
}
.nav-download:hover { background: transparent; color: var(--yellow); }
.nav-download svg, .button svg { width: 17px; height: 17px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.menu-toggle { display: none; width: 40px; height: 40px; padding: 0; border: 1px solid var(--line); border-radius: 4px; background: transparent; cursor: pointer; }
.menu-toggle span { display: block; width: 17px; 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: vertical rail + three webtoon strips + ticker */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(560px 340px at 92% 4%, rgba(245, 211, 0, .13), transparent 72%),
    linear-gradient(180deg, #131318 0%, var(--bg) 100%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr) minmax(300px, 430px);
  align-items: center;
  gap: clamp(18px, 3vw, 44px);
  padding: 54px 0 40px;
}
.hero-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  align-self: stretch;
  gap: 14px;
  padding: 6px 0;
  border-right: 1px solid var(--line);
}
.hero-rail b {
  padding: 4px 0;
  color: var(--yellow);
  font-family: var(--mono);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 3px;
  line-height: 1;
  writing-mode: vertical-rl;
  text-orientation: mixed;
}
.hero-rail span {
  color: #6f6e79;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 4px;
  writing-mode: vertical-rl;
}
.hero-copy { min-width: 0; }
.hero-kicker {
  margin: 0 0 14px;
  color: #b6b5bf;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.4px;
}
.hero h1 {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(52px, 7.6vw, 100px);
  font-weight: 700;
  letter-spacing: clamp(-4px, -.7vw, -7px);
  line-height: .94;
}
.hero-subtitle {
  margin: 18px 0 0;
  color: var(--yellow);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 800;
  line-height: 1.4;
}
.hero-lead { max-width: 500px; margin: 12px 0 0; color: var(--muted); font-size: 14.5px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; margin-top: 26px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 12px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 900;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}
.button-primary { background: var(--yellow); color: #14140f; box-shadow: 0 12px 28px rgba(245, 211, 0, .18); }
.button-primary:hover { background: #ffe23a; transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 32px; font-size: 15px; }
.text-link { color: #c8c7d0; border-bottom: 1px dashed #4c4c56; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 5px; color: var(--yellow); }

.strip-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: center;
  gap: 10px;
  justify-self: end;
  width: 100%;
}
.strip-card {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  overflow: hidden;
}
.strip-card img { width: 100%; height: auto; aspect-ratio: 9 / 19; object-fit: cover; object-position: center 8%; }
.strip-card-mid { transform: translateY(-16px); }
.strip-card figcaption {
  padding: 7px 8px 8px;
  border-top: 1px solid var(--line);
  color: var(--yellow);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 1px;
  text-align: center;
}
.strip-plain {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  aspect-ratio: 9 / 19;
  border-style: dashed;
  border-color: #3a3a43;
  background: repeating-linear-gradient(160deg, #191920 0 8px, #14141a 8px 16px);
  text-align: center;
}
.strip-plain b { color: var(--yellow); font-family: var(--mono); font-size: 26px; line-height: 1; }
.strip-plain span { color: #8d8c96; font-size: 11px; line-height: 1.6; }

.ticker {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #0c0c10;
}
.ticker-track { display: flex; width: max-content; animation: ticker-run 30s linear infinite; }
.ticker-track span {
  padding: 10px 20px;
  border-right: 1px solid var(--line);
  color: #8b8a95;
  font-family: var(--mono);
  font-size: 11px;
  white-space: nowrap;
}
.ticker-track span:nth-child(4n+1) { color: var(--yellow); }
@keyframes ticker-run {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .ticker-track { animation: none; }
}

/* features: four across */
.features { padding: 72px 0 76px; 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(24px, 2.7vw, 34px); font-weight: 900; letter-spacing: -.8px; line-height: 1.32; }
.section-heading > p:last-child { max-width: 620px; margin: 11px 0 0; color: var(--muted); font-size: 14px; }
.section-heading-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(200px, 290px); align-items: end; gap: 26px; }
.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: 22px 18px 20px;
  border: 1px solid var(--line);
  border-top: 2px solid #34343c;
  border-radius: 0 0 6px 6px;
  background: var(--panel);
  transition: border-top-color .18s ease;
}
.feature-card:hover { border-top-color: var(--yellow); }
.feature-no { display: block; margin-bottom: 10px; color: #5f5f6a; font-family: var(--mono); font-size: 11px; letter-spacing: 1.4px; }
.feature-card h3 { margin: 0 0 7px; font-size: 16.5px; font-weight: 900; }
.feature-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* shots: four across */
.shots { padding: 72px 0 78px; background: #0d0d11; }
.shot-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.shot-card { margin: 0; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); overflow: hidden; }
.shot-card img { width: 100%; height: auto; aspect-ratio: 9 / 16; object-fit: cover; object-position: center 10%; }
.shot-card:nth-child(2) img { object-position: center 4%; }
.shot-card:nth-child(3) img { object-position: center 26%; }
.shot-card figcaption { display: flex; flex-wrap: wrap; align-items: baseline; gap: 7px; padding: 10px 11px 12px; border-top: 1px solid var(--line); font-size: 12.5px; font-weight: 800; }
.shot-card figcaption b { color: var(--yellow); font-family: var(--mono); font-size: 10px; }
.shot-card figcaption small { flex-basis: 100%; color: var(--muted); font-size: 10.5px; font-weight: 500; }

/* faq */
.faq { padding: 72px 0 78px; 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(26px, 4vw, 54px); }
.faq-heading { position: sticky; top: calc(var(--header-height) + 24px); align-self: start; }
.faq-list { display: grid; gap: 10px; }
.faq-list details { border: 1px solid var(--line); border-left: 2px solid #3a3a44; border-radius: 4px; background: var(--panel); }
.faq-list details[open] { border-left-color: var(--yellow); }
.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 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; border: 1px solid var(--line); border-radius: 3px; }
.faq-list summary i::before,
.faq-list summary i::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 1.5px;
  content: "";
  background: var(--yellow);
  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 16px; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.85; }

/* reviews: single column with left meta rail */
.reviews { padding: 72px 0 78px; }
.review-list { display: grid; gap: 8px; padding: 0; margin: 0; list-style: none; }
.review-card {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  align-items: start;
  gap: 20px;
  padding: 15px 18px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--panel);
}
.review-meta { display: flex; flex-direction: column; gap: 4px; }
.review-meta b { color: var(--yellow); font-size: 13.5px; font-weight: 900; }
.review-meta time { color: #72717c; font-family: var(--mono); font-size: 10.5px; }
.review-card p { margin: 0; color: #b8b7c1; font-size: 13px; line-height: 1.85; }

/* steps: vertical rows */
.steps { padding: 70px 0 74px; border-top: 1px solid var(--line); background: #0d0d11; }
.step-list { display: grid; gap: 0; padding: 0; margin: 0; list-style: none; border-top: 1px solid var(--line); }
.step-list li {
  display: grid;
  grid-template-columns: 66px 150px minmax(0, 1fr);
  align-items: baseline;
  gap: 18px;
  padding: 20px 4px;
  border-bottom: 1px solid var(--line);
}
.step-list span { color: var(--yellow); font-family: var(--mono); font-size: 26px; font-weight: 700; line-height: 1; }
.step-list h3 { margin: 0; font-size: 17px; font-weight: 900; }
.step-list p { margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.8; }

/* download: left copy / right action */
.download { padding: 26px 0; background: var(--bg); }
.download-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
  align-items: center;
  gap: clamp(22px, 3vw, 44px);
  padding: 42px clamp(22px, 4vw, 48px);
  border: 1px solid #3c3a1e;
  border-radius: 8px;
  background:
    radial-gradient(420px 220px at 100% 0%, rgba(245, 211, 0, .16), transparent 70%),
    #16161a;
}
.download .eyebrow { color: var(--yellow); }
.download h2 { color: var(--ink); }
.download-copy > p:last-child { max-width: 480px; margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.download-action { display: flex; flex-direction: column; gap: 16px; }
.download .button-primary { width: 100%; background: var(--yellow); color: #14140f; }
.download-notes { display: grid; gap: 5px; padding: 0; margin: 0; list-style: none; }
.download-notes li { color: #8c8b96; font-family: var(--mono); font-size: 11px; }
.download-notes li::before { margin-right: 7px; content: "▸"; color: var(--yellow); }

/* 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: 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 20px; }
.footer-nav a { color: #b3b2bc; font-size: 12px; }
.footer-nav a:hover { color: var(--yellow); }
.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: #72717c; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1100px) {
  .hero-grid { grid-template-columns: 52px minmax(0, 1fr) 360px; }
  .feature-grid, .shot-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 14px;
    border-bottom: 1px solid var(--line);
    background: var(--bg);
    box-shadow: 0 16px 26px rgba(0, 0, 0, .6);
  }
  .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); }
  .hero-grid { grid-template-columns: 44px minmax(0, 1fr); gap: 20px; padding: 42px 0 30px; }
  .strip-row { grid-column: 1 / -1; justify-self: stretch; margin-top: 8px; }
  .strip-card img { aspect-ratio: 9 / 13; }
  .strip-plain { aspect-ratio: 9 / 13; }
  .strip-card-mid { transform: none; }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-heading { position: static; }
  .review-card { grid-template-columns: 1fr; gap: 6px; }
  .review-meta { flex-direction: row; align-items: baseline; gap: 10px; }
  .step-list li { grid-template-columns: 48px 110px minmax(0, 1fr); gap: 12px; }
  .download-inner { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .page-shell, .nav-shell { width: calc(100% - 30px); }
  .hero h1 { font-size: clamp(44px, 14vw, 60px); }
  .hero-lead { font-size: 14px; }
  .hero-rail b { font-size: 24px; }
  .strip-row { gap: 7px; }
  .strip-card figcaption { font-size: 9px; padding: 6px 4px; }
  .feature-grid, .shot-grid { grid-template-columns: 1fr; }
  .shot-grid { grid-auto-flow: column; grid-auto-columns: 74%; grid-template-columns: none; gap: 9px; overflow-x: auto; scroll-snap-type: x mandatory; }
  .shot-card { scroll-snap-align: start; }
  .section-heading-split { grid-template-columns: 1fr; gap: 9px; }
  .section-heading-split > p:last-child { margin: 0; }
  .step-list li { grid-template-columns: 44px minmax(0, 1fr); gap: 6px 12px; }
  .step-list p { grid-column: 2; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  .brand { font-size: 17px; gap: 6px; }
  .brand img { width: 30px; height: 30px; }
  .brand-tag { display: none; }
  .nav-download { min-height: 34px; padding: 0 9px; font-size: 11px; gap: 4px; }
  .nav-download svg { width: 13px; height: 13px; }
  .menu-toggle { width: 34px; height: 34px; }
  .hero h1 { font-size: 42px; }
  .hero-subtitle { font-size: 16px; }
  .hero-rail { display: none; }
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .button { width: 100%; }
  .strip-plain b { font-size: 20px; }
  .strip-plain span { font-size: 10px; }
}