:root {
  --navy: #23407d;
  --navy-deep: #16294f;
  --cyan: #0fb5a0;
  --ink: #1b2233;
  --muted: #5c667a;
  --line: #e3e7ef;
  --bg: #ffffff;
  --bg-alt: #f5f7fb;
  --radius: 14px;
  --wrap: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--navy); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark { border-radius: 9px; display: block; }
.brand-name { font-size: 19px; font-weight: 700; letter-spacing: .02em; color: var(--navy); }
.site-nav { display: flex; gap: 28px; font-size: 15px; }
.site-nav a { color: var(--muted); }
.site-nav a:hover { color: var(--navy); text-decoration: none; }

/* hero */
.hero {
  background: radial-gradient(1100px 420px at 78% -10%, rgba(15, 181, 160, .16), transparent 62%),
              linear-gradient(180deg, #f7f9fd 0%, #ffffff 100%);
  border-bottom: 1px solid var(--line);
}
.hero-inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; padding: 76px 24px 84px; align-items: center; }
.eyebrow { margin: 0 0 14px; font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--cyan); font-weight: 700; }
h1 { margin: 0 0 18px; font-size: 46px; line-height: 1.22; letter-spacing: -.01em; color: var(--navy-deep); }
.lead { margin: 0 0 26px; font-size: 17px; color: var(--muted); max-width: 34em; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 12px 22px; border-radius: 10px;
  font-size: 15px; font-weight: 600; border: 1px solid transparent;
}
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-deep); text-decoration: none; }
.btn-ghost { border-color: var(--line); color: var(--navy); background: #fff; }
.btn-ghost:hover { border-color: var(--navy); text-decoration: none; }
.hero-note { margin: 18px 0 0; font-size: 13px; color: var(--muted); }

.hero-art { display: flex; flex-direction: column; gap: 14px; }
.bubble {
  background: #fff; border: 1px solid var(--line); border-radius: 16px 16px 16px 4px;
  padding: 14px 18px; font-size: 14px; color: var(--ink);
  box-shadow: 0 12px 30px rgba(35, 64, 125, .08);
}
.bubble-2 { margin-left: 44px; border-radius: 16px 16px 4px 16px; }
.bubble-3 { margin-left: 16px; }

/* sections */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-title { margin: 0 0 28px; font-size: 28px; color: var(--navy-deep); letter-spacing: -.01em; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cards-2 { grid-template-columns: repeat(2, 1fr); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; }
.card h3 { margin: 0 0 10px; font-size: 17px; color: var(--navy); }
.card p { margin: 0; font-size: 15px; color: var(--muted); }

.split { display: grid; grid-template-columns: 1.3fr .7fr; gap: 40px; align-items: start; }
.link-list { margin: 0; padding: 0; list-style: none; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.link-list li + li { border-top: 1px solid var(--line); }
.link-list a { display: block; padding: 15px 20px; font-size: 15px; }
.link-list a:hover { background: #f3f6fc; text-decoration: none; }

.page-head { background: linear-gradient(180deg, #f7f9fd, #fff); border-bottom: 1px solid var(--line); padding: 64px 0 56px; }
.page-head h1 { font-size: 38px; }
.page-head .lead { margin-bottom: 0; }

.platform-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.platform { border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; background: #fff; }
.platform h2 { margin: 0 0 12px; font-size: 22px; color: var(--navy); }
.status { display: inline-block; margin: 0 0 14px; padding: 4px 12px; border-radius: 999px; font-size: 13px; font-weight: 600; }
.status-wait { background: #fff5e6; color: #8a5a00; border: 1px solid #f3dcb4; }
.meta { margin: 14px 0 0; font-size: 13px; color: var(--muted); }

.notice { margin-top: 26px; border-left: 4px solid var(--cyan); background: #f2fbf9; border-radius: 0 var(--radius) var(--radius) 0; padding: 22px 26px; }
.notice h3 { margin: 0 0 8px; font-size: 16px; color: var(--navy-deep); }
.notice p { margin: 0; font-size: 15px; color: var(--muted); }

.steps { margin: 0; padding-left: 22px; }
.steps li { margin-bottom: 16px; font-size: 15px; color: var(--muted); }
.steps li strong { display: block; color: var(--ink); font-size: 16px; margin-bottom: 2px; }

.kv-table { width: 100%; border-collapse: collapse; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; font-size: 15px; }
.kv-table th, .kv-table td { text-align: left; padding: 14px 18px; border-bottom: 1px solid var(--line); vertical-align: top; }
.kv-table tr:last-child th, .kv-table tr:last-child td { border-bottom: 0; }
.kv-table th { width: 200px; background: var(--bg-alt); font-weight: 600; color: var(--navy); }
.pending { color: #8a5a00; background: #fff5e6; border: 1px dashed #e2c48b; border-radius: 6px; padding: 2px 8px; font-size: 14px; }

.plain-list { margin: 0; padding-left: 20px; color: var(--muted); font-size: 15px; }
.plain-list li { margin-bottom: 10px; }

.cta-band { display: flex; align-items: center; justify-content: space-between; gap: 32px; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 34px 36px; }
.cta-band h2 { margin: 0 0 6px; font-size: 22px; color: var(--navy-deep); }
.cta-band .muted { margin: 0; }

.muted { color: var(--muted); }
.small { font-size: 13px; }

/* footer */
.site-footer { background: var(--navy-deep); color: #c8d2e6; padding: 52px 0 26px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1.2fr; gap: 36px; }
.footer-col p { margin: 0 0 6px; }
.footer-brand { font-size: 18px; font-weight: 700; color: #fff; }
.footer-entity { color: #9fb0ce; }
.footer-title { font-weight: 600; color: #fff; margin-bottom: 10px; }
.site-footer a { color: #c8d2e6; }
.site-footer a:hover { color: #fff; }
.footer-bottom { margin-top: 36px; padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, .14); }
.footer-bottom p { margin: 0; font-size: 13px; color: #8fa2c2; }

@media (max-width: 900px) {
  .hero-inner, .split, .cards, .cards-2, .platform-grid, .footer-grid { grid-template-columns: 1fr; }
  h1 { font-size: 34px; }
  .hero-art { display: none; }
  .cta-band { flex-direction: column; align-items: flex-start; }
  .kv-table th { width: 130px; }
}