:root {
  --bg: #14121a;
  --bg-2: #1c1926;
  --card: #201c2b;
  --line: rgba(255, 255, 255, 0.08);
  --ink: #f2efe6;
  --ink-2: #b9b3c9;
  --ink-3: #8a8399;
  --violet: #a259ff;
  --violet-2: #7c4dff;
  --pink: #ff5a8a;
  --chalk: #f6f3ea;
  --radius: 18px;
  --max: 1120px;
  --font-display: "Fraunces", "Georgia", serif;
  --font-body: "Inter", -apple-system, "PingFang SC", "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font-body); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.01em; margin: 0 0 12px; line-height: 1.1; }
h2 { font-size: clamp(28px, 4vw, 40px); }
h3 { font-size: 24px; }
h3 small { font-family: var(--font-body); font-weight: 500; color: var(--ink-3); font-size: 14px; margin-left: 8px; }
p { margin: 0 0 14px; }
.eyebrow { color: var(--violet); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; font-size: 12px; margin-bottom: 10px; }
.small { font-size: 13px; color: var(--ink-3); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--violet); color: #fff; padding: 8px 12px; border-radius: 8px; }
.skip:focus { left: 8px; z-index: 10; }

/* nav */
.nav { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--font-display); font-size: 22px; font-weight: 700; }
.nav nav { display: flex; gap: 22px; }
.nav nav a { text-decoration: none; color: var(--ink-2); font-size: 14px; font-weight: 500; }
.nav nav a:hover { color: var(--ink); }

/* hero */
.hero { max-width: var(--max); margin: 0 auto; padding: clamp(56px, 9vw, 120px) 24px 64px; text-align: center; }
.hero-mark { position: relative; width: 160px; height: 160px; margin: 0 auto 28px; }
.hero-mark img { position: absolute; inset: 22px; width: 116px; height: 116px; object-fit: contain; filter: drop-shadow(0 8px 30px rgba(162, 89, 255, 0.35)); }
.blob { position: absolute; inset: 0; background: radial-gradient(circle at 30% 30%, #b06bff, #5a2bd8 60%, #2a1a5e); opacity: 0.35; animation: morph 9s ease-in-out infinite; }
@keyframes morph {
  0%   { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; transform: rotate(0deg) scale(1); }
  33%  { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; transform: rotate(12deg) scale(1.06); }
  66%  { border-radius: 50% 50% 40% 60% / 40% 70% 30% 60%; transform: rotate(-8deg) scale(0.96); }
  100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; transform: rotate(0deg) scale(1); }
}
.hero h1 { font-size: clamp(44px, 8vw, 88px); margin-bottom: 20px; }
.morph { display: inline-grid; text-align: left; vertical-align: top; color: var(--violet); }
.morph > span { grid-area: 1 / 1; opacity: 0; animation: words 10s infinite; }
.morph > span:nth-child(1) { animation-delay: 0s; }
.morph > span:nth-child(2) { animation-delay: 2s; }
.morph > span:nth-child(3) { animation-delay: 4s; }
.morph > span:nth-child(4) { animation-delay: 6s; }
.morph > span:nth-child(5) { animation-delay: 8s; }
@keyframes words { 0% { opacity: 0; transform: translateY(0.35em); } 4%, 16% { opacity: 1; transform: translateY(0); } 20%, 100% { opacity: 0; transform: translateY(-0.35em); } }
@media (prefers-reduced-motion: reduce) { .blob, .morph > span { animation: none; } .morph > span:not(:first-child) { display: none; } .morph > span:first-child { opacity: 1; } }
.lede { max-width: 720px; margin: 0 auto 28px; font-size: 18px; color: var(--ink-2); }
.lede strong { color: var(--ink); }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-block; padding: 12px 20px; border-radius: 999px; text-decoration: none; font-weight: 600; font-size: 15px; border: 1px solid transparent; }
.btn.primary { background: linear-gradient(135deg, var(--violet), var(--violet-2)); color: #fff; box-shadow: 0 10px 30px rgba(124, 77, 255, 0.35); }
.btn.ghost { border-color: var(--line); color: var(--ink-2); }
.btn:hover { transform: translateY(-1px); }

/* story */
.story { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.story-grid, .how-grid { max-width: var(--max); margin: 0 auto; padding: 72px 24px; display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: start; }
.story p, .how p { color: var(--ink-2); font-size: 17px; }
.tenets, .steps { margin: 8px 0 0; padding: 0; list-style: none; display: grid; gap: 14px; }
.tenets li, .steps li { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; color: var(--ink-2); }
.tenets b, .steps b { color: var(--ink); display: block; margin-bottom: 4px; font-weight: 600; }
.steps { counter-reset: s; }
.steps li { position: relative; padding-left: 52px; }
.steps li::before { counter-increment: s; content: counter(s); position: absolute; left: 16px; top: 16px; width: 26px; height: 26px; border-radius: 50%; background: var(--violet); color: #fff; font-weight: 700; font-size: 13px; display: grid; place-items: center; }

/* games */
.games { max-width: var(--max); margin: 0 auto; padding: 72px 24px; }
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 24px; }
.card { display: grid; grid-template-columns: 200px 1fr; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.card .shot { background: #0f0d15; display: flex; align-items: center; justify-content: center; }
.card .shot img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 9 / 16; }
.card .meta { padding: 22px; }
.card .meta p { color: var(--ink-2); font-size: 15px; }
.genre { color: var(--ink-3) !important; font-size: 13px !important; margin-bottom: 10px !important; }
.badge { display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; margin-bottom: 10px; }
.badge.live { background: rgba(162, 89, 255, 0.18); color: #cfa8ff; }
.badge.soon { background: rgba(255, 90, 138, 0.16); color: #ff9db7; }
.badge.dev { background: rgba(255, 255, 255, 0.08); color: var(--ink-2); }

/* how */
.how { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* contact */
.contact { max-width: var(--max); margin: 0 auto; padding: 80px 24px; text-align: center; }
.contact p { color: var(--ink-2); max-width: 560px; margin-left: auto; margin-right: auto; }
.mail a { font-family: var(--font-display); font-size: clamp(22px, 3.5vw, 34px); color: var(--ink); text-decoration: none; border-bottom: 2px solid var(--violet); }

/* footer */
.foot { border-top: 1px solid var(--line); padding: 24px; display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; color: var(--ink-2); font-size: 14px; }
.foot > div:first-child { display: flex; align-items: center; gap: 8px; }

@media (max-width: 900px) {
  .story-grid, .how-grid { grid-template-columns: 1fr; gap: 28px; padding: 56px 20px; }
  .cards { grid-template-columns: 1fr; }
  .nav nav { display: none; }
}
@media (max-width: 560px) {
  .card { grid-template-columns: 1fr; }
  .card .shot img { aspect-ratio: 16 / 10; object-position: top; }
  .hero { padding-top: 48px; }
}

/* 主打游戏（Chalk Hero）：两张竖屏截图 + 介绍 */
.feature { display: grid; grid-template-columns: 1.1fr 1fr; gap: 32px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; margin-top: 24px; align-items: center; }
.feature-shots { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.feature-shots img { width: 100%; aspect-ratio: 9 / 16; object-fit: cover; border-radius: 14px; border: 1px solid var(--line); background: #0f0d15; }
.feature-shots img:nth-child(2) { transform: translateY(24px); }
.feature-meta h3 { font-size: 34px; }
.feature-meta p { color: var(--ink-2); font-size: 16px; }
.facts { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 8px; }
.facts li { color: var(--ink-2); font-size: 14px; padding-left: 14px; border-left: 2px solid var(--violet); }
.facts b { color: var(--ink); margin-right: 6px; font-weight: 600; }
.card.wide { grid-column: 1 / -1; grid-template-columns: 1.3fr 1fr; }
.card.wide .shot img { aspect-ratio: 16 / 9; object-fit: cover; }
.card.text { grid-template-columns: 1fr; }
@media (max-width: 900px) { .feature { grid-template-columns: 1fr; } .card.wide { grid-template-columns: 1fr; } .feature-shots img:nth-child(2) { transform: none; } }