:root { --bg: #ffffff; --text: #1d1d1f; --muted: #6e6e73; --line: #d2d2d7; --accent: #7c4dff; }
@media (prefers-color-scheme: dark) { :root { --bg: #1c1c1e; --text: #f5f5f7; --muted: #a1a1a6; --line: #3a3a3c; --accent: #b39dff; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Segoe UI", sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 48px 16px 64px; }
header { display: flex; align-items: center; gap: 16px; margin-bottom: 32px; }
header img { width: 64px; height: 64px; border-radius: 14px; }
h1 { font-size: 32px; margin: 0; line-height: 1.2; }
h2 { font-size: 22px; margin: 40px 0 8px; }
h3 { font-size: 17px; margin: 24px 0 4px; }
p, li { color: var(--text); }
.muted { color: var(--muted); }
a { color: var(--accent); }
table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 15px; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
hr { border: 0; border-top: 1px solid var(--line); margin: 48px 0; }
nav { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 8px; }
footer { margin-top: 64px; font-size: 14px; color: var(--muted); }

/* ---- 소개 페이지 ---- */
.page { max-width: 1080px; }
.lang { text-align: right; font-size: 14px; }
.hero { text-align: center; padding: 56px 0 24px; }
.hero .icon { width: 128px; height: 128px; border-radius: 28px; box-shadow: 0 12px 32px rgba(0,0,0,.18); }
.hero h1 { font-size: clamp(36px, 7vw, 64px); letter-spacing: -0.02em; margin: 24px 0 8px; }
.hero .tagline { font-size: clamp(20px, 3.4vw, 28px); margin: 0 0 12px; font-weight: 600;
  background: linear-gradient(90deg, #7c4dff, #4f8cff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { font-size: 18px; color: var(--muted); max-width: 640px; margin: 0 auto 28px; }
.buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.button { display: inline-block; padding: 12px 22px; border-radius: 999px; font-weight: 600; text-decoration: none;
  background: var(--accent); color: #fff; }
.button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.small { font-size: 14px; color: var(--muted); margin-top: 12px; }
.window { margin: 40px auto 0; border-radius: 14px; overflow: hidden; box-shadow: 0 24px 64px rgba(0,0,0,.22);
  border: 1px solid var(--line); background: var(--line); }
.window img { display: block; width: 100%; height: auto; }
section { margin-top: 96px; }
section > h2 { font-size: clamp(28px, 4.5vw, 40px); text-align: center; margin: 0 0 8px; letter-spacing: -0.01em; }
section > .sub { text-align: center; color: var(--muted); font-size: 18px; margin: 0 auto 40px; max-width: 640px; }
.grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 720px) { .grid { grid-template-columns: repeat(2, 1fr); } }
.card { border: 1px solid var(--line); border-radius: 16px; padding: 24px; background: var(--card); }
.card svg { width: 32px; height: 32px; stroke: var(--accent); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { margin: 12px 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.shots { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
.shots figure { margin: 0; }
.shots figcaption { text-align: center; color: var(--muted); font-size: 15px; margin-top: 12px; }
.shots .window { margin: 0; }
.points { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; text-align: center; }
.points strong { display: block; font-size: 18px; margin-bottom: 4px; }
.points span { color: var(--muted); font-size: 15px; }
details { border-bottom: 1px solid var(--line); padding: 16px 0; }
details summary { cursor: pointer; font-weight: 600; font-size: 17px; }
details p { color: var(--muted); margin: 8px 0 0; }
.faq { max-width: 760px; margin: 0 auto; }
.cta { text-align: center; padding: 56px 16px; border-radius: 24px; background: var(--card); border: 1px solid var(--line); }
:root { --card: #f5f5f7; }
@media (prefers-color-scheme: dark) { :root { --card: #2c2c2e; } }