/* 耐玩 Naiwan — 内敛、可信、玩家为本；避免霓虹玩家风与紫色渐变套路 */

:root {
  --bg: #07080c;
  --bg-elevated: #0e1018;
  --ink: #e9e6df;
  --ink-muted: rgba(233, 230, 223, 0.62);
  --line: rgba(233, 230, 223, 0.12);
  --accent: #d4a853;
  --accent-soft: rgba(212, 168, 83, 0.18);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.55);
  --font-serif: "Noto Serif SC", "Songti SC", serif;
  --font-display: "Instrument Serif", Georgia, serif;
  --font-sans: "IBM Plex Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  --radius: 14px;
  --max: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink);
  background: radial-gradient(
      1200px 600px at 80% -10%,
      rgba(212, 168, 83, 0.08),
      transparent 55%
    ),
    radial-gradient(
      900px 500px at 10% 20%,
      rgba(120, 160, 255, 0.06),
      transparent 50%
    ),
    var(--bg);
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.07;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  backdrop-filter: blur(14px);
  background: linear-gradient(
    to bottom,
    rgba(7, 8, 12, 0.92),
    rgba(7, 8, 12, 0.65),
    transparent
  );
  border-bottom: 1px solid transparent;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--ink);
}

.logo-mark {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.08em;
}

.logo-sub {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
}

.nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.9rem;
}

.nav a {
  color: var(--ink-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav a:hover {
  color: var(--ink);
}

main {
  position: relative;
  z-index: 1;
}

section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 4.5rem 1.5rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.85fr;
  gap: 2.5rem;
  align-items: stretch;
  padding-top: 3rem;
  padding-bottom: 2rem;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .site-header {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    row-gap: 0.5rem;
  }
}

.hero-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hero-eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0;
}

.hero-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 1.15;
  margin: 0;
  letter-spacing: 0.02em;
}

.hero-title-accent {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  color: var(--ink-muted);
  display: inline-block;
  margin-top: 0.35rem;
}

.hero-lead {
  max-width: 36rem;
  color: var(--ink-muted);
  margin: 0;
  font-size: 1.05rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.pill {
  border: 1px solid var(--line);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--ink-muted);
}

.pill-strong {
  border-color: rgba(212, 168, 83, 0.45);
  color: var(--accent);
  background: var(--accent-soft);
}

.hero-panel {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(
      145deg,
      rgba(212, 168, 83, 0.09),
      transparent 40%
    ),
    var(--bg-elevated);
  box-shadow: var(--shadow);
  display: flex;
  align-items: stretch;
}

.panel-inner {
  padding: 1.75rem 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.panel-kicker {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.panel-quote {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.75;
}

.panel-foot {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.panel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 16px rgba(212, 168, 83, 0.55);
}

.section-head {
  max-width: 32rem;
  margin-bottom: 2.5rem;
}

.section h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  margin: 0 0 0.75rem;
}

.section-desc {
  margin: 0;
  color: var(--ink-muted);
}

.value-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 800px) {
  .value-cards {
    grid-template-columns: 1fr;
  }
}

.value-card {
  padding: 1.5rem 1.35rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(14, 16, 24, 0.85);
}

.value-card h3 {
  margin: 0 0 0.65rem;
  font-family: var(--font-serif);
  font-size: 1.25rem;
}

.value-card p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.studio {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.studio-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 800px) {
  .studio-layout {
    grid-template-columns: 1fr;
  }
}

.studio-copy p {
  color: var(--ink-muted);
}

.studio-list {
  margin: 1.25rem 0 0;
  padding-left: 1.1rem;
  color: var(--ink-muted);
}

.studio-list li {
  margin-bottom: 0.45rem;
}

.studio-board {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  padding: 1.25rem;
  background: repeating-linear-gradient(
      -18deg,
      rgba(233, 230, 223, 0.03) 0,
      rgba(233, 230, 223, 0.03) 1px,
      transparent 1px,
      transparent 10px
    ),
    var(--bg-elevated);
}

.board-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.board-span {
  grid-column: 1 / -1;
}

.board-cell {
  border: 1px dashed rgba(233, 230, 223, 0.18);
  border-radius: 10px;
  padding: 1rem 1rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.board-label {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.board-value {
  font-family: var(--font-serif);
  font-size: 1.05rem;
}

.players {
  text-align: center;
}

.players-inner {
  max-width: 40rem;
  margin: 0 auto;
}

.players-lead {
  color: var(--ink-muted);
  font-size: 1.05rem;
}

.players-chips {
  margin-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.players-chips span {
  font-size: 0.82rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--ink-muted);
}

.contact-card {
  border-radius: calc(var(--radius) + 4px);
  padding: 2.25rem 2rem;
  border: 1px solid var(--line);
  background: linear-gradient(
      160deg,
      rgba(212, 168, 83, 0.12),
      transparent 45%
    ),
    var(--bg-elevated);
  box-shadow: var(--shadow);
}

.contact-card p {
  color: var(--ink-muted);
  max-width: 36rem;
}

.email-link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 1.15rem;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(212, 168, 83, 0.35);
}

.email-link:hover {
  color: #e6c06d;
}

.contact-note {
  margin-top: 1.5rem;
  font-size: 0.8rem;
  color: rgba(233, 230, 223, 0.42);
}

.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  font-size: 0.85rem;
  color: rgba(233, 230, 223, 0.38);
  text-align: center;
}

.footer-copy {
  margin: 0 0 0.5rem;
}

.footer-icp {
  margin: 0;
  font-size: 0.82rem;
}

.footer-icp a {
  color: rgba(233, 230, 223, 0.45);
  text-decoration: none;
}

.footer-icp a:hover {
  color: rgba(233, 230, 223, 0.65);
  text-decoration: underline;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.reveal-delay-1 {
  transition-delay: 0.08s;
}

.reveal-delay-2 {
  transition-delay: 0.16s;
}

.reveal-delay-3 {
  transition-delay: 0.24s;
}