:root {
  --ivory: #fffdf9;
  --paper: #f7f1ed;
  --wine: #5d174f;
  --plum: #32152f;
  --berry: #ad3c72;
  --rose: #e75b87;
  --ink: #332a35;
  --muted: #756b72;
  --line: #e5d9db;
  --shadow: 0 20px 60px rgba(57, 22, 48, .12);
  --radius-module: 16px;
  --radius-button: 999px;
  --radius-image: 12px;
  --radius-label: 4px;
  --serif: Georgia, 'Times New Roman', 'Noto Serif SC', serif;
  --sans: Inter, 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ivory); color: var(--ink); font: 16px/1.75 var(--sans); }
img { display: block; max-width: 100%; height: auto; border-radius: var(--radius-image); }
a { color: inherit; text-decoration: none; }
.container { width: min(1160px, calc(100% - 48px)); margin-inline: auto; }
.skip-link { position: absolute; left: 16px; top: -48px; z-index: 100; padding: 8px 14px; color: #fff; background: var(--plum); border-radius: var(--radius-button); }
.skip-link:focus { top: 10px; }
.site-header { position: fixed; inset: 0 0 auto; z-index: 50; background: rgba(255,253,249,.9); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(93,23,79,.1); }
.header-inner { width: min(1240px, calc(100% - 48px)); height: 76px; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--wine); font-weight: 700; letter-spacing: .03em; white-space: nowrap; }
.brand img { width: 32px; height: 48px; object-fit: cover; object-position: top; border-radius: var(--radius-image); }
.primary-nav { display: flex; align-items: center; gap: 22px; color: #574650; font-size: 14px; font-weight: 600; }
.primary-nav a { transition: color .3s ease, transform .3s ease, filter .3s ease; }
.primary-nav a:hover, .primary-nav a:focus-visible { color: var(--berry); }
.primary-nav a:not(.nav-cta) { position: relative; display: inline-flex; align-items: center; gap: 6px; }
.primary-nav a:not(.nav-cta)::after { position: absolute; right: 0; bottom: -7px; left: 0; height: 2px; content: ''; background: var(--berry); transform: scaleX(0); transform-origin: left center; transition: transform .3s ease; }
.primary-nav a:not(.nav-cta):hover::after, .primary-nav a:not(.nav-cta):focus-visible::after { transform: scaleX(1); }
.nav-icon, .button-icon { display: inline-grid; place-items: center; flex: 0 0 auto; line-height: 1; color: currentColor; }
.nav-icon { width: 1.1em; font-size: 13px; }
.nav-cta, .button-primary { display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; color: #fff !important; background: var(--berry); border-radius: var(--radius-button); box-shadow: 0 8px 20px rgba(173,60,114,.24); transition: transform .3s ease, filter .3s ease, box-shadow .3s ease; }
.nav-cta:hover, .nav-cta:focus-visible, .button-primary:hover, .button-primary:focus-visible { transform: translateY(-2px) scale(1.04); filter: brightness(1.12); box-shadow: 0 12px 26px rgba(173,60,114,.34); }
.menu-toggle { display: none; padding: 8px; background: none; border: 0; border-radius: var(--radius-button); cursor: pointer; transition: transform .3s ease, filter .3s ease; }
.menu-toggle:hover, .menu-toggle:focus-visible { transform: scale(1.06); filter: brightness(1.12); }
.menu-toggle span { display: block; width: 24px; height: 2px; margin: 5px; background: var(--wine); transform-origin: center; transition: transform .3s ease, opacity .3s ease; }
.menu-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.is-open span:nth-child(2) { opacity: 0; }
.menu-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.hero { position: relative; display: flex; align-items: center; min-height: 720px; height: min(92vh,820px); overflow: hidden; background: var(--plum); }
.hero-media, .hero-media img, .hero-overlay { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-media img { object-fit: cover; object-position: center 45%; filter: saturate(.9); transition: transform .3s ease; }
.hero:hover .hero-media img { transform: scale(1.03); }
.hero-overlay { background: linear-gradient(90deg, rgba(31,11,31,.88), rgba(49,17,47,.66) 43%, rgba(49,17,47,.14)); }
.hero-content { position: relative; z-index: 1; padding-top: 82px; color: #fff; }
.eyebrow, .kicker { margin: 0 0 18px; color: var(--rose); font-size: 11px; font-weight: 700; letter-spacing: .22em; }
.hero h1 { max-width: 820px; margin: 0; font: 700 clamp(36px,5vw,64px)/1.1 var(--serif); letter-spacing: .01em; }
.hero h1 em { color: #f3b7cf; font-style: normal; }
.hero-lead { max-width: 540px; margin: 25px 0 30px; color: rgba(255,255,255,.82); font-size: 18px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; gap: 10px; padding: 12px 20px; border: 1px solid transparent; border-radius: var(--radius-button); font-size: 14px; font-weight: 700; transition: transform .3s ease, background .3s ease, filter .3s ease, box-shadow .3s ease; }
.button:hover, .button:focus-visible { transform: translateY(-2px) scale(1.04); filter: brightness(1.1); }
.button-ghost { color: #fff; border-color: rgba(255,255,255,.45); }
.button-ghost:hover { background: rgba(255,255,255,.12); }
.hero-meta { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 60px; color: rgba(255,255,255,.7); font-size: 12px; }
.hero-meta span { display: flex; align-items: center; gap: 8px; }
.hero-meta span::before { content: '✦'; color: var(--rose); }
.scroll-cue { position: absolute; right: 40px; bottom: 25px; display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.7); font-size: 11px; letter-spacing: .16em; writing-mode: vertical-rl; }
.scroll-cue span { width: 1px; height: 52px; background: var(--rose); }
.section { padding: 120px 0; }
.split-layout { display: grid; grid-template-columns: .8fr 1.5fr; gap: 100px; align-items: start; }
.section-heading h2 { margin: 0 0 14px; color: var(--wine); font: 700 clamp(32px,4vw,48px)/1.08 var(--serif); }
.section-heading.light h2 { color: #fff; }
.heading-note { max-width: 280px; margin: 0; color: var(--muted); }
.light .heading-note { color: rgba(255,255,255,.65); }
.content-heading { margin-bottom: 48px; }
.content-heading .heading-note { max-width: 520px; }
.intro-section { background: var(--ivory); }
.intro-copy { color: #534851; font-size: 17px; }
.lead-copy { margin-top: 0; color: var(--plum); font-size: 22px; line-height: 1.65; }
.stat-row { display: flex; gap: 44px; margin-top: 42px; padding-top: 28px; border-top: 1px solid var(--line); }
.stat-row strong { display: block; color: var(--berry); font: 700 40px/1 var(--serif); }
.stat-row span { display: block; margin-top: 8px; color: var(--muted); font-size: 12px; }
.dark-section { color: #fff; background: var(--plum); }
.feature-grid { display: grid; gap: 18px; }
.content-grid { grid-template-columns: repeat(3,1fr); }
.feature-card { min-height: 210px; padding: 28px; background: rgba(255,255,255,.035); border: 1px solid rgba(255,255,255,.15); border-radius: var(--radius-module); transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease; }
.feature-card:hover, .feature-card:focus-within { transform: translateY(-6px); border-color: var(--rose); box-shadow: 0 14px 32px rgba(231,91,135,.22), 0 0 18px rgba(231,91,135,.14); }
.card-number { margin-bottom: 32px; color: var(--rose); font: 700 14px var(--serif); }
.feature-card h3 { margin: 0 0 10px; color: #fff; font: 700 23px var(--serif); }
.feature-card p { margin: 0; color: rgba(255,255,255,.68); font-size: 14px; }
.gallery-band { padding: 20px 0; overflow: hidden; background: var(--paper); }
.gallery-track { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; width: min(1440px,calc(100% - 40px)); margin: auto; }
.gallery-track figure { position: relative; aspect-ratio: 16/10; margin: 0; overflow: hidden; background: var(--plum); border-radius: var(--radius-image); }
.gallery-track img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.gallery-track figure:hover img { transform: scale(1.06); }
.gallery-track figcaption { position: absolute; inset: auto 0 0; padding: 32px 16px 14px; color: #fff; font-size: 12px; background: linear-gradient(transparent,rgba(26,8,25,.8)); }
.guide-section, .update-section { background: var(--paper); }
.guide-list, .timeline, .faq-list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { display: flex; align-items: center; gap: 18px; padding: 22px 0; color: var(--wine); font-weight: 700; cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
.guide-list summary span { width: 28px; color: var(--rose); font: 700 13px var(--serif); }
.guide-list details p { margin: 0 0 22px 46px; color: var(--muted); font-size: 15px; }
.guide-toolbar { display: flex; flex-wrap: wrap; gap: 10px; margin: 34px 0 28px; }
.guide-filter { padding: 9px 18px; color: var(--wine); background: transparent; border: 1px solid var(--line); border-radius: var(--radius-button); cursor: pointer; font: 600 13px/1.2 var(--sans); transition: color .3s ease, background .3s ease, border-color .3s ease, transform .3s ease, box-shadow .3s ease; }
.guide-filter:hover, .guide-filter:focus-visible, .guide-filter.is-active { color: #fff; background: var(--berry); border-color: var(--berry); transform: translateY(-2px); box-shadow: 0 8px 18px rgba(173,60,114,.2); }
.guide-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.guide-card { min-width: 0; overflow: hidden; background: #fff; border: 1px solid rgba(93,23,79,.1); border-radius: var(--radius-module); box-shadow: 0 8px 22px rgba(57,22,48,.06); transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease; }
.guide-card:hover, .guide-card:focus-within { transform: translateY(-8px); border-color: rgba(231,91,135,.66); box-shadow: 0 18px 36px rgba(93,23,79,.16), 0 0 22px rgba(231,91,135,.18); }
.guide-card > a { display: block; height: 100%; }
.guide-cover { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--plum); border-radius: var(--radius-image); }
.guide-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease, filter .3s ease; }
.guide-card:hover .guide-cover img, .guide-card:focus-within .guide-cover img { transform: scale(1.06); filter: saturate(1.08); }
.guide-tag { display: inline-flex; align-self: flex-start; margin-bottom: 14px; padding: 5px 10px; color: #fff; background: rgba(93,23,79,.86); border: 1px solid rgba(255,255,255,.3); border-radius: var(--radius-label); font-size: 12px; line-height: 1.2; }
.guide-card-body { display: flex; flex-direction: column; min-height: 246px; padding: 22px 22px 20px; }
.guide-card h3 { margin: 0 0 9px; color: var(--wine); font: 700 21px/1.3 var(--serif); }
.guide-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.guide-meta { display: block; margin-top: auto; padding-top: 16px; color: var(--berry); font-size: 12px; font-weight: 700; }
.guide-more { margin-top: 34px; }
.text-link { display: inline-flex; align-items: center; gap: 10px; margin-top: 42px; padding-bottom: 4px; color: var(--berry); font-weight: 700; border-bottom: 1px solid var(--berry); transition: transform .3s ease, filter .3s ease, color .3s ease; }
.text-link:hover, .text-link:focus-visible { transform: translateY(-2px) scale(1.04); filter: brightness(1.1); color: var(--wine); }
.feature-section { background: var(--ivory); }
.centered { text-align: center; }
.centered .heading-note { margin: auto; }
.four-grid { grid-template-columns: repeat(4,1fr); margin-top: 60px; }
.four-grid article { padding: 30px 24px; background: #fff; border-top: 2px solid var(--wine); border-radius: var(--radius-module); transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease; }
.four-grid article:hover, .four-grid article:focus-within { transform: translateY(-6px); border-color: var(--rose); box-shadow: 0 14px 32px rgba(93,23,79,.16), 0 0 18px rgba(231,91,135,.16); }
.four-grid .icon { color: var(--rose); font-size: 25px; }
.four-grid h3 { margin: 20px 0 10px; color: var(--wine); font: 700 22px var(--serif); }
.four-grid p { margin: 0; color: var(--muted); font-size: 14px; }
.timeline { margin-top: 0; }
.timeline article { display: grid; grid-template-columns: 150px 1fr; gap: 32px; padding: 25px 20px; border-bottom: 1px solid var(--line); border-radius: var(--radius-module); transition: transform .3s ease, background .3s ease, border-color .3s ease, box-shadow .3s ease; }
.timeline article:hover, .timeline article:focus-within { transform: translateY(-4px); background: rgba(255,255,255,.72); border-color: rgba(231,91,135,.48); box-shadow: 0 12px 28px rgba(93,23,79,.1), 0 0 18px rgba(231,91,135,.12); }
.timeline time { padding-top: 4px; color: var(--berry); font: 700 14px var(--serif); }
.timeline h3 { margin: 0; color: var(--wine); font-size: 20px; }
.timeline p { margin: 8px 0 0; color: var(--muted); font-size: 15px; }
.faq-section { background: var(--ivory); }
.faq-list { max-width: 900px; }
.faq-list summary { justify-content: space-between; color: var(--ink); font-size: 16px; }
.faq-list summary span { color: var(--berry); font-size: 22px; font-weight: 400; }
.faq-list details { border-radius: var(--radius-module); transition: transform .3s ease, background .3s ease, border-color .3s ease, box-shadow .3s ease; }
.faq-list details:hover, .faq-list details:focus-within { transform: translateY(-4px); background: rgba(255,255,255,.72); border-color: rgba(231,91,135,.48); box-shadow: 0 12px 28px rgba(93,23,79,.1), 0 0 18px rgba(231,91,135,.12); }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list p { margin: 0 30px 22px 0; color: var(--muted); font-size: 15px; }
.friend-links { padding: 46px 0 48px; color: var(--wine); text-align: center; background: var(--paper); border-top: 1px solid var(--line); }
.friend-links h2 { margin: 0 0 24px; font: 700 clamp(26px,3vw,36px)/1.2 var(--serif); }
.friend-links-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.friend-links-list a { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 20px; color: var(--wine); background: var(--ivory); border: 1px solid rgba(173,60,114,.18); border-radius: var(--radius-button); box-shadow: 0 8px 18px rgba(93,23,79,.08); font-size: 14px; font-weight: 700; transition: transform .3s ease, color .3s ease, background .3s ease, border-color .3s ease, box-shadow .3s ease; }
.friend-links-list a:hover, .friend-links-list a:focus-visible { color: #fff; background: var(--berry); border-color: var(--berry); transform: translateY(-2px); box-shadow: 0 12px 24px rgba(173,60,114,.24); }
.site-footer { padding: 28px 0; color: #fff; background: var(--plum); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer-inner .brand { color: #fff; }
.footer-inner p { margin: 0; color: rgba(255,255,255,.55); font-size: 12px; }
.back-top { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid rgba(255,255,255,.3); border-radius: var(--radius-button); transition: transform .3s ease, background .3s ease, filter .3s ease, box-shadow .3s ease; }
.back-top:hover, .back-top:focus-visible { transform: translateY(-2px) scale(1.06); background: var(--berry); filter: brightness(1.1); box-shadow: 0 8px 18px rgba(231,91,135,.24); }
.floating-cta { position: fixed; right: 24px; bottom: 24px; z-index: 45; display: inline-flex; align-items: center; gap: 9px; padding: 13px 18px; color: #fff; background: var(--berry); border: 1px solid rgba(255,255,255,.2); border-radius: var(--radius-button); box-shadow: 0 12px 28px rgba(93,23,79,.28); font-size: 14px; transition: transform .3s ease, background .3s ease, box-shadow .3s ease, filter .3s ease; }
.floating-cta span { display: grid; place-items: center; width: 20px; height: 20px; border: 1px solid rgba(255,255,255,.55); border-radius: 50%; font-size: 12px; }
.floating-cta:hover, .floating-cta:focus-visible { transform: translateY(-3px) scale(1.04); background: var(--wine); filter: brightness(1.1); box-shadow: 0 14px 32px rgba(93,23,79,.38), 0 0 18px rgba(231,91,135,.2); }
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (max-width: 900px) { .primary-nav { gap: 14px; } .content-grid { grid-template-columns: repeat(2,1fr); } .four-grid { grid-template-columns: repeat(2,1fr); } .guide-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } .split-layout { gap: 50px; } }
@media (max-width: 720px) {
  body { font-size: 15px; }
  .container, .header-inner { width: min(100% - 32px,1160px); }
  .site-header { background: rgba(255,253,249,.96); }
  .header-inner { height: 66px; }
  .brand span { font-size: 13px; }
  .menu-toggle { display: block; }
  .primary-nav { position: absolute; inset: 66px 16px auto; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 12px; background: var(--ivory); border: 1px solid var(--line); border-radius: var(--radius-module); box-shadow: var(--shadow); }
  .primary-nav.is-open { display: flex; }
  .primary-nav a { display: flex !important; align-items: center; gap: 8px; padding: 12px 10px; border-bottom: 1px solid var(--line); }
  .primary-nav a:last-child { border: 0; }
  .nav-cta { justify-content: center; margin-top: 8px; }
  .hero { height: 720px; min-height: 0; }
  .hero-media img { object-position: 58% center; }
  .hero-overlay { background: linear-gradient(90deg,rgba(31,11,31,.88),rgba(49,17,47,.45)); }
  .hero-content { padding-top: 64px; }
  .hero h1 { font-size: 38px; }
  .hero-lead { font-size: 16px; }
  .hero-meta { gap: 12px; margin-top: 42px; }
  .scroll-cue { right: 18px; }
  .section { padding: 80px 0; }
  .split-layout { grid-template-columns: 1fr; gap: 38px; }
  .section-heading h2 { font-size: 36px; }
  .content-heading { margin-bottom: 34px; }
  .lead-copy { font-size: 19px; }
  .content-grid, .four-grid { grid-template-columns: 1fr; }
  .guide-grid { grid-template-columns: 1fr; gap: 18px; }
  .guide-toolbar { gap: 8px; margin-top: 26px; }
  .guide-filter { flex: 1 1 calc(50% - 8px); min-width: 0; padding-inline: 12px; }
  .feature-card { min-height: 0; }
  .gallery-track { grid-template-columns: 1fr; width: calc(100% - 32px); }
  .gallery-track figure { aspect-ratio: 16/9; }
  .timeline article { grid-template-columns: 1fr; gap: 6px; }
  .footer-inner { flex-wrap: wrap; }
  .footer-inner p { order: 3; width: 100%; }
  .friend-links { padding: 38px 0 40px; }
  .friend-links-list { gap: 10px; }
  .friend-links-list a { width: 100%; padding-inline: 16px; }
  .floating-cta { right: 16px; bottom: calc(16px + env(safe-area-inset-bottom)); padding: 11px 15px; font-size: 13px; }
  .floating-cta span { width: 18px; height: 18px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }

.screenshots-section { background: var(--paper); }
.screenshot-viewer { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(300px, .9fr); gap: 20px; align-items: stretch; }
.screenshot-main { position: relative; aspect-ratio: 16 / 9; margin: 0; overflow: hidden; background: var(--plum); border-radius: var(--radius-image); }
.screenshot-main img { width: 100%; height: 100%; object-fit: contain; background: var(--plum); }
.screenshot-main figcaption { position: absolute; inset: auto 0 0; padding: 34px 20px 16px; color: #fff; font-size: 14px; font-weight: 700; background: linear-gradient(transparent, rgba(26,8,25,.85)); }
.screenshot-thumbs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.screenshot-thumb { position: relative; min-width: 0; padding: 0; overflow: hidden; aspect-ratio: 16 / 9; background: var(--plum); border: 2px solid transparent; border-radius: var(--radius-image); cursor: pointer; transition: border-color .3s ease, transform .3s ease, opacity .3s ease, box-shadow .3s ease; }
.screenshot-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.screenshot-thumb:hover, .screenshot-thumb:focus-visible { transform: translateY(-4px); border-color: var(--rose); box-shadow: 0 10px 24px rgba(93,23,79,.2), 0 0 16px rgba(231,91,135,.18); }
.screenshot-thumb:hover img, .screenshot-thumb:focus-visible img { transform: scale(1.06); }
.screenshot-main img { transition: transform .3s ease; }
.screenshot-main:hover img { transform: scale(1.04); }
.screenshot-thumb.is-active { border-color: var(--berry); box-shadow: 0 0 0 2px rgba(173,60,114,.18); }
.screenshot-thumb:focus-visible { outline: 3px solid var(--rose); outline-offset: 2px; }
@media (max-width: 720px) {
  .screenshot-viewer { grid-template-columns: 1fr; }
  .screenshot-thumbs { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .screenshot-main figcaption { padding: 30px 14px 12px; font-size: 13px; }
}