@charset "utf-8";
:root {
  --bg: #ffffff; --bg-alt: #f3f8f8; --text: #0f2329; --muted: #4a6168; --accent: #0f6e73; --accent-hover: #0b585c;
  --card: #ffffff; --border: #d9e6e7; --hero-a: #0d3542; --hero-b: #13606b; --mint: #2bd4b4;
  --radius: 18px; --shadow: 0 1px 2px rgba(15, 35, 41, .06), 0 8px 24px rgba(15, 35, 41, .06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a1316; --bg-alt: #0e1c21; --text: #e5eff0; --muted: #9fb4b9; --accent: #6bc9cc; --accent-hover: #8fd8da;
    --card: #11232a; --border: #1d353c; --hero-a: #0a2a34; --hero-b: #0f4e58;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text); line-height: 1.6;
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
}
html[lang="ja"] body { font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif; }
html[lang="zh-Hans"] body { font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }
img { max-width: 100%; }
/* Japanese and Chinese headings break between phrases, not inside words. */
html[lang="ja"] :is(h1, h2, h3), html[lang="zh-Hans"] :is(h1, h2, h3) { word-break: keep-all; word-break: auto-phrase; overflow-wrap: anywhere; }
.wrap { width: min(1080px, 100% - 40px); margin: 0 auto; }
.narrow { width: min(760px, 100% - 40px); }
.center { text-align: center; }
.top { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(16px); -webkit-backdrop-filter: saturate(180%) blur(16px); border-bottom: 1px solid var(--border); }
.bar { display: flex; align-items: center; justify-content: space-between; height: 56px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 650; font-size: 18px; color: var(--text); letter-spacing: -.01em; }
.brand:hover { color: var(--text); text-decoration: none; }
.brand img { border-radius: 7px; }
.nav { display: flex; gap: 22px; font-size: 15px; }
.nav a { color: var(--muted); }
.nav a:hover { color: var(--text); text-decoration: none; }
.hero { background: radial-gradient(1200px 500px at 50% -10%, var(--hero-b), var(--hero-a)); color: #f2fbfb; text-align: center; padding: 72px 0 80px; }
.hero-icon { width: 128px; height: 128px; filter: drop-shadow(0 18px 30px rgba(0, 0, 0, .35)); }
.eyebrow { margin: 22px 0 6px; font-size: 15px; letter-spacing: .02em; color: #9fe6dc; font-weight: 600; }
.hero h1 { margin: 0 auto; max-width: 820px; font-size: clamp(32px, 5.4vw, 56px); line-height: 1.1; letter-spacing: -.02em; font-weight: 750; }
.lead { margin: 20px auto 30px; max-width: 700px; font-size: clamp(17px, 2vw, 20px); color: #cfe9e8; }
.cta { display: inline-block; padding: 13px 26px; border-radius: 999px; background: var(--mint); color: #062a2a; font-weight: 650; font-size: 16px; }
.cta:hover { color: #062a2a; text-decoration: none; filter: brightness(1.05); }
.cta.soon { background: rgba(255, 255, 255, .12); color: #eafaf7; border: 1px solid rgba(255, 255, 255, .28); }
.req { margin: 16px 0 0; font-size: 14px; color: #a9cfcf; }
.section { padding: 76px 0; }
.section.alt { background: var(--bg-alt); }
h2 { font-size: clamp(26px, 3.4vw, 36px); line-height: 1.2; letter-spacing: -.015em; margin: 0 0 34px; text-align: center; }
h3 { font-size: 19px; line-height: 1.3; margin: 14px 0 8px; letter-spacing: -.005em; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.card p { margin: 0; color: var(--muted); font-size: 16px; }
.glyph { width: 34px; height: 34px; color: var(--accent); }
.more { margin: 36px auto 0; max-width: 820px; text-align: center; }
.more h3 { color: var(--muted); font-size: 15px; text-transform: uppercase; letter-spacing: .08em; }
.more ul { list-style: none; padding: 0; margin: 12px 0 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.more li { border: 1px solid var(--border); border-radius: 999px; padding: 6px 14px; font-size: 15px; background: var(--card); }
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: none; }
.steps li { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; }
.steps p { margin: 0; color: var(--muted); font-size: 16px; }
.num { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--accent); color: var(--bg); font-weight: 700; }
.plans { display: grid; grid-template-columns: repeat(2, minmax(0, 380px)); gap: 20px; justify-content: center; }
.plan { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.plan.best { border: 2px solid var(--accent); }
.plan h3 { margin-top: 0; }
.price { font-size: 26px; font-weight: 700; margin: 0 0 14px; letter-spacing: -.01em; }
.plan ul { margin: 0; padding-left: 20px; color: var(--muted); font-size: 16px; }
.plan li { margin: 6px 0; }
.note { text-align: center; color: var(--muted); font-size: 14px; margin: 22px auto 0; max-width: 640px; }
.doc { padding: 56px 0 72px; }
.doc h1 { font-size: clamp(30px, 4.4vw, 44px); line-height: 1.15; letter-spacing: -.02em; margin: 0 0 8px; }
.doc h2 { text-align: left; font-size: 22px; margin: 36px 0 10px; }
.doc p, .doc li { color: var(--text); }
.doc ul { padding-left: 22px; }
.doc li { margin: 10px 0; }
.meta { color: var(--muted); margin: 0 0 22px; font-size: 15px; }
.lead-doc { font-size: 18px; }
.faq details { border: 1px solid var(--border); border-radius: 14px; padding: 0 18px; margin: 10px 0; background: var(--card); }
.faq summary { cursor: pointer; padding: 15px 0; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-weight: 400; font-size: 22px; line-height: 1.1; }
.faq details[open] summary::after { content: "−"; }
.faq details[open] summary { border-bottom: 1px solid var(--border); }
.faq details p { margin: 14px 0 16px; color: var(--muted); }
.foot { border-top: 1px solid var(--border); padding: 30px 0 40px; font-size: 14px; color: var(--muted); }
.foot-links, .langs { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-bottom: 12px; }
.langs a { color: var(--muted); }
.langs a[aria-current] { color: var(--text); font-weight: 600; }
.small { margin: 6px 0; font-size: 13px; }
@media (max-width: 860px) {
  .grid, .steps { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr; }
  .nav { gap: 14px; font-size: 14px; }
}
@media (max-width: 420px) {
  .nav a:first-child { display: none; }
}