@font-face {
  font-family: "Poppins";
  src: local("Poppins");
  font-display: swap;
}

:root {
  --bg: #fffafa;
  --panel: #ffffff;
  --panel-soft: #fff2f3;
  --panel-warm: #fff7f7;
  --ink: #171717;
  --muted: #646464;
  --line: #eddadc;
  --primary: #ef2635;
  --primary-2: #bd1522;
  --secondary: #171717;
  --accent: #ff7f89;
  --accent-soft: #ffd9dc;
  --success: #2b8b57;
  --warning: #9b651f;
  --shadow: 0 22px 55px rgba(53, 20, 24, 0.12);
  --shadow-sm: 0 10px 28px rgba(53, 20, 24, 0.08);
  --radius: 22px;
  --header-h: 82px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 18px); }
body {
  margin: 0;
  font-family: "Poppins", "Trebuchet MS", "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-2); }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
::selection { background: var(--accent-soft); color: var(--ink); }

.container { width: min(1180px, calc(100% - 32px)); margin-inline: auto; }
.section { padding: 78px 0; position: relative; }
.section-compact { padding: 58px 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  margin-bottom: 10px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--ink));
}

h1, h2, h3 {
  line-height: 1.18;
  margin: 0 0 16px;
  letter-spacing: -0.025em;
  color: var(--ink);
}
h1 { font-size: clamp(2.2rem, 4.2vw, 4.15rem); }
h2 { font-size: clamp(1.7rem, 2.7vw, 2.7rem); }
h3 { font-size: 1.12rem; }
p { margin: 0 0 18px; color: var(--muted); }
.lead { font-size: clamp(1rem, 1.35vw, 1.16rem); max-width: 720px; }

.section-head {
  display: block;
  margin-bottom: 34px;
}
.section-head > div { max-width: 880px; }
.section-head p {
  margin: 8px 0 0;
  max-width: 880px;
}
.section-head h2 { margin-bottom: 10px; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 12px 20px;
  border-radius: 13px;
  border: 1px solid transparent;
  font-weight: 800;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), #ff5360);
  color: #fff;
  box-shadow: 0 12px 26px rgba(239, 38, 53, 0.24);
}
.btn-primary:hover { color: #fff; box-shadow: 0 16px 30px rgba(239, 38, 53, 0.3); }
.btn-secondary { background: #fff; color: var(--ink); border-color: #d9c5c7; }
.btn-secondary:hover { color: var(--primary); background: #fff7f7; }
.btn-wide { min-width: 280px; }

.chip {
  display: inline-flex;
  padding: 7px 11px;
  border-radius: 999px;
  background: rgba(255,255,255,.95);
  border: 1px solid #e9c8cb;
  color: #3d3031;
  font-size: 0.81rem;
  font-weight: 700;
}

.skip-link { position: fixed; left: 10px; top: -100px; z-index: 1000; background: #fff; padding: 10px 14px; border-radius: 10px; }
.skip-link:focus { top: 10px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 250, 250, 0.95);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .2s, border-color .2s;
}
.site-header.scrolled { box-shadow: 0 10px 30px rgba(41, 17, 20, 0.1); border-color: var(--line); }
.nav-shell { min-height: var(--header-h); display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); font-weight: 900; letter-spacing: -0.02em; min-width: 255px; }
.brand img {
  width: 50px;
  height: 50px;
  flex: 0 0 50px;
  object-fit: contain;
  background: #fff;
  border: 1px solid #ead4d6;
  border-radius: 12px;
  padding: 3px;
}
.brand span { font-size: 0.96rem; line-height: 1.15; }
.main-nav { margin-left: auto; display: flex; align-items: center; gap: 5px; }
.main-nav a:not(.btn) { padding: 10px 9px; border-radius: 10px; color: #514648; font-size: 0.88rem; font-weight: 700; }
.main-nav a:not(.btn):hover, .main-nav a.active { background: #ffe9eb; color: var(--primary-2); }
.main-nav .btn { margin-left: 6px; padding-inline: 16px; }
.menu-toggle { display: none; width: 46px; height: 46px; border: 1px solid var(--line); background: #fff; border-radius: 13px; }
.menu-toggle span, .menu-toggle span::before, .menu-toggle span::after { display: block; width: 20px; height: 2px; background: var(--ink); margin: auto; content: ""; position: relative; }
.menu-toggle span::before { position: absolute; top: -6px; }
.menu-toggle span::after { position: absolute; top: 6px; }

.hero {
  min-height: 650px;
  padding: 74px 0 86px;
  display: flex;
  align-items: center;
  background:
    linear-gradient(90deg, rgba(255,250,250,.96) 0%, rgba(255,250,250,.9) 38%, rgba(255,250,250,.36) 67%, rgba(17,17,17,.12) 100%),
    url("../images/hero-visual.webp") center / cover no-repeat;
  border-bottom: 1px solid var(--line);
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(300px, .62fr); gap: 36px; align-items: center; }
.hero-copy {
  padding: 32px;
  max-width: 720px;
  background: rgba(255,255,255,.9);
  border: 1px solid rgba(235,208,211,.92);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.hero-copy h1 { font-size: clamp(2.15rem, 4vw, 3.85rem); }
.hero-copy h1 span { color: var(--primary); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 22px; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 9px; }
.hero-tech-card {
  background: rgba(17,17,17,.88);
  color: #fff;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 26px;
  padding: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.hero-tech-card h2 { color: #fff; font-size: 1.38rem; margin-bottom: 12px; }
.hero-tech-card p { color: #e8dfe0; }
.tech-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
.tech-list li { display: flex; justify-content: space-between; gap: 18px; border-top: 1px solid rgba(255,255,255,.14); padding-top: 10px; color: #f7eef0; font-size: .9rem; }
.tech-list strong { color: #ff8f98; }

.about-layout { display: grid; grid-template-columns: 1.05fr .95fr; gap: 30px; align-items: stretch; }
.about-panel { padding: 32px; }
.media-frame {
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 390px;
  overflow: hidden;
}
.media-frame img { width: 100%; height: 100%; object-fit: contain; border-radius: 18px; }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 22px; }
.metric { padding: 15px; background: #fff8f8; border: 1px solid var(--line); border-radius: 15px; }
.metric strong { display: block; font-size: 1.03rem; color: var(--ink); }
.metric span { font-size: .8rem; color: var(--muted); }

.features-board { display: grid; grid-template-columns: 1fr; gap: 18px; }
.feature-stack { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; align-items: stretch; }
.feature-card { padding: 24px; width: 100%; min-width: 0; height: 100%; }
.feature-card:nth-child(1) { grid-column: auto; }
.feature-icon { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: #ffe5e7; color: var(--primary-2); font-weight: 900; margin-bottom: 17px; }
.feature-aside {
  padding: 26px 28px;
  background: linear-gradient(135deg, #171717, #351b1d);
  color: #fff;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
}
.feature-aside h3 { color: #fff; margin-bottom: 8px; }
.feature-aside p { color: #e8dfe0; margin: 0; max-width: 760px; }
.feature-aside::after { content: ""; position: absolute; width: 180px; height: 180px; border-radius: 50%; right: -80px; bottom: -80px; background: rgba(239,38,53,.15); }

.steps-panel { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.step { padding: 23px; position: relative; }
.step-no { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; background: #ffe6e8; color: var(--primary-2); font-weight: 900; margin-bottom: 15px; }
.step::after { content: ""; position: absolute; right: -8px; top: 42px; width: 16px; height: 2px; background: #e7c8cb; }
.step:last-child::after { display: none; }

.compat-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 22px; }
.compat-table { padding: 26px; }
.compat-row { display: grid; grid-template-columns: 1fr auto; gap: 20px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.compat-row:last-child { border-bottom: 0; }
.compat-row strong { font-size: .93rem; color: var(--ink); }
.compat-row span { font-size: .84rem; color: var(--muted); text-align: right; }
.note-card { padding: 28px; background: linear-gradient(155deg, #fff0f1, #fff); }

.use-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.use-card { padding: 23px; }
.use-card strong { display: block; margin-bottom: 7px; color: var(--ink); }

.download-zone { background: linear-gradient(135deg, #fff0f1, #fff8f8); border-block: 1px solid var(--line); }
.download-shell { display: grid; grid-template-columns: .9fr 1.1fr; gap: 34px; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: 30px; padding: 38px; box-shadow: var(--shadow); }
.download-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.download-art { min-height: 330px; overflow: hidden; border-radius: 24px; background: var(--panel-soft); border: 1px solid var(--line); }
.download-art img { width: 100%; height: 100%; min-height: 330px; object-fit: contain; }

.setup-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 24px; }
.setup-checklist { padding: 25px; position: sticky; top: 105px; align-self: start; }
.checklist { list-style: none; padding: 0; margin: 18px 0 0; }
.checklist li { padding: 10px 0 10px 28px; position: relative; border-bottom: 1px solid var(--line); color: var(--muted); }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--primary); font-weight: 900; }
.setup-steps { display: grid; gap: 14px; }
.setup-item { padding: 23px; }
.setup-item b { color: var(--primary-2); }

.safety-band { display: grid; grid-template-columns: auto 1fr; gap: 20px; padding: 27px; border: 1px solid #efc9cc; background: #fff5f6; border-radius: 22px; }
.safety-icon { width: 56px; height: 56px; border-radius: 18px; background: #ffdfe2; display: grid; place-items: center; font-weight: 900; color: var(--primary-2); }

.proscons { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.pc-card { padding: 27px; }
.pc-card ul { margin: 15px 0 0; padding-left: 20px; color: var(--muted); }
.pc-card li { margin: 10px 0; }

.release-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 20px; }
.release-card, .release-notes { padding: 27px; }
.release-card { background: linear-gradient(145deg, #fff0f1, #fff); }

.trouble-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.trouble-card { padding: 23px; }

.guides-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.guide-card { overflow: hidden; }
.guide-card img { width: 100%; aspect-ratio: 16/9; object-fit: contain; background: #fff3f4; }
.guide-body { padding: 20px; }
.guide-body h3 { font-size: 1.06rem; }
.guide-body a { font-weight: 800; }

.faq-wrap { display: grid; grid-template-columns: 270px 1fr; gap: 22px; }
.faq-category-nav { position: sticky; top: 105px; align-self: start; padding: 15px; }
.faq-tab { width: 100%; text-align: left; border: 0; background: transparent; padding: 13px 14px; border-radius: 12px; font-weight: 800; color: var(--muted); }
.faq-tab[aria-selected="true"] { background: #ffe8ea; color: var(--primary-2); }
.faq-panel { display: none; }
.faq-panel.active { display: block; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 15px; margin-bottom: 10px; overflow: hidden; }
.faq-question { width: 100%; display: flex; justify-content: space-between; gap: 20px; text-align: left; border: 0; background: #fff; padding: 17px 19px; color: var(--ink); font-weight: 800; }
.faq-question span:last-child { color: var(--primary); font-size: 1.25rem; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .25s ease; }
.faq-answer > div { padding: 0 19px 17px; color: var(--muted); }
.faq-item.open { border-color: #efb7bc; box-shadow: var(--shadow-sm); }
.faq-item.open .faq-question { background: #fff8f8; }

.scroll-top { position: fixed; right: 20px; bottom: 20px; width: 48px; height: 48px; border: 1px solid var(--line); border-radius: 15px; background: #fff; color: var(--primary); box-shadow: var(--shadow-sm); opacity: 0; pointer-events: none; transform: translateY(10px); transition: .2s; z-index: 40; }
.scroll-top.show { opacity: 1; pointer-events: auto; transform: none; }

.page-hero { padding: 48px 0 38px; }
.page-hero .inner { background: linear-gradient(135deg, #fff0f1, #fffafa); border: 1px solid var(--line); border-radius: 28px; padding: 38px; }
.breadcrumbs { font-size: .84rem; color: var(--muted); margin-bottom: 14px; }
.breadcrumbs a { font-weight: 700; }
.content-grid { display: grid; grid-template-columns: 1fr 320px; gap: 28px; align-items: start; }
.article-card, .sidebar-card { padding: 28px; }
.article-card > img { width: 100% !important; border-radius: 18px !important; object-fit: contain !important; background: #fff3f4 !important; }
.article-card h2 { font-size: 1.62rem; margin-top: 32px; }
.article-card h3 { font-size: 1.12rem; margin-top: 24px; }
.article-card ul, .article-card ol { color: var(--muted); }
.article-card li { margin: 8px 0; }
.callout { padding: 18px 20px; background: #fff1f2; border: 1px solid #efc9cc; border-radius: 16px; margin: 22px 0; color: #5f4548; }
.callout strong { color: var(--primary-2); }
.sidebar { display: grid; gap: 16px; position: sticky; top: 105px; }
.sidebar-card h3 { font-size: 1.02rem; }
.sidebar-card ul { list-style: none; padding: 0; margin: 0; }
.sidebar-card li { padding: 9px 0; border-bottom: 1px solid var(--line); }

.blog-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.blog-card { overflow: hidden; }
.blog-card img { aspect-ratio: 16/9; width: 100%; object-fit: contain; background: #fff3f4; }
.blog-card .body { padding: 20px; }
.blog-card h2 { font-size: 1.14rem; }
.blog-card .meta { font-size: .8rem; color: var(--muted); margin-bottom: 8px; }

.support-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 24px; }
.support-card { padding: 28px; }
.plain-contact { font-size: 1.05rem; color: var(--ink); font-weight: 800; background: #fff3f4; border: 1px solid var(--line); padding: 15px 18px; border-radius: 14px; display: inline-block; }

.site-footer { background: #fff2f3; color: var(--ink); margin-top: 72px; border-top: 1px solid #e9cfd2; }
.footer-main { padding: 44px 0 28px; display: grid; grid-template-columns: 1.2fr .8fr .9fr; gap: 34px; }
.footer-brand .brand { color: var(--ink); margin-bottom: 16px; }
.footer-brand p { color: var(--muted); max-width: 520px; }
.footer-brand .brand img { width: 72px; height: 72px; flex-basis: 72px; padding: 4px; }
.footer-col h3 { font-size: 1rem; color: var(--ink); }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer-links a { color: #5c4d4f; text-decoration: none; }
.footer-links a:hover { color: var(--primary-2); }
.footer-bottom { border-top: 1px solid #e5cfd1; padding: 20px 0 25px; text-align: center; }
.footer-bottom p { color: #6a5b5d; margin: 4px 0; font-size: .85rem; }
.footer-bottom a { color: var(--primary-2); text-decoration: none; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .5s ease, transform .5s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .menu-toggle { display: block; margin-left: auto; }
  .main-nav { display: none; position: absolute; left: 16px; right: 16px; top: 76px; background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 12px; box-shadow: var(--shadow); flex-direction: column; align-items: stretch; }
  .main-nav.open { display: flex; }
  .main-nav a:not(.btn) { padding: 12px; }
  .main-nav .btn { margin: 4px 0 0; }
  .brand { min-width: 0; }
  .brand span { display: none; }
  .hero { background-position: 62% center; }
  .hero-grid, .about-layout, .compat-grid, .download-shell, .setup-grid, .release-grid, .support-layout { grid-template-columns: 1fr; }
  .hero-tech-card { max-width: 640px; }
  .feature-stack { grid-template-columns: 1fr; }
  .feature-aside { grid-template-columns: 1fr; }
  .steps-panel { grid-template-columns: repeat(2, 1fr); }
  .step:nth-child(2)::after { display: none; }
  .use-grid, .guides-grid, .blog-list { grid-template-columns: repeat(2, 1fr); }
  .faq-wrap { grid-template-columns: 1fr; }
  .faq-category-nav { position: static; display: flex; gap: 8px; }
  .faq-tab { width: auto; flex: 1; text-align: center; }
  .content-grid { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .setup-checklist { position: static; }
}

@media (max-width: 640px) {
  :root { --header-h: 72px; }
  .container { width: min(100% - 22px, 1180px); }
  .section { padding: 60px 0; }
  .section-compact { padding: 46px 0; }
  .nav-shell { min-height: 72px; }
  .brand img { width: 46px; height: 46px; flex-basis: 46px; }
  .hero { min-height: auto; padding: 46px 0 52px; background-position: 69% center; }
  .hero-grid { gap: 18px; }
  .hero-copy { padding: 24px 20px; }
  .hero-copy h1 { font-size: clamp(2rem, 9vw, 2.9rem); }
  h1 { font-size: clamp(2rem, 9vw, 3rem); }
  h2 { font-size: clamp(1.55rem, 7vw, 2.2rem); }
  .hero-actions .btn, .download-actions .btn { width: 100%; }
  .metric-grid { grid-template-columns: 1fr; }
  .steps-panel, .use-grid, .proscons, .trouble-grid, .guides-grid, .blog-list { grid-template-columns: 1fr; }
  .step::after { display: none; }
  .download-shell { padding: 23px; }
  .media-frame { min-height: 250px; }
  .safety-band { grid-template-columns: 1fr; }
  .faq-category-nav { flex-direction: column; }
  .page-hero .inner { padding: 26px 21px; }
  .article-card, .sidebar-card, .support-card { padding: 21px; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}