:root {
  --bg: #0b1020;
  --bg-alt: #0f1630;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.10);
  --text: #e8ecf5;
  --text-dim: #9aa6c2;
  --accent: #5b8cff;
  --accent-2: #7af0c8;
  --grad: linear-gradient(135deg, #5b8cff 0%, #7af0c8 100%);
  --radius: 16px;
  --maxw: 1080px;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

* { 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", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 600px at 80% -10%, #1b2550 0%, transparent 60%),
    radial-gradient(900px 500px at -10% 10%, #16284a 0%, transparent 55%),
    var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

a { color: inherit; text-decoration: none; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(11, 16, 32, 0.7);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 18px; }
.brand-mark { font-size: 20px; }
.brand-text .accent {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { color: var(--text-dim); font-size: 15px; transition: color .2s; }
.nav a:hover { color: var(--text); }
.lang-toggle {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
}
.lang-toggle:hover { background: var(--surface-2); border-color: var(--accent); }

/* Hero */
.hero { padding: 84px 0 56px; }
.hero-inner { max-width: 760px; }
.eyebrow {
  display: inline-block;
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent-2);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 999px;
  margin: 0 0 18px;
}
.hero h1 {
  font-size: clamp(34px, 6vw, 56px);
  line-height: 1.1;
  margin: 0 0 18px;
  font-weight: 800;
}
.lede { font-size: clamp(16px, 2.2vw, 19px); color: var(--text-dim); margin: 0 0 30px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 12px 26px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .2s ease, background .2s;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--grad);
  color: #08101f;
  box-shadow: 0 10px 30px rgba(91, 140, 255, 0.35);
}
.btn-primary:hover { box-shadow: 0 14px 38px rgba(91, 140, 255, 0.5); }
.btn-ghost { background: var(--surface); border-color: var(--border); color: var(--text); }
.btn-ghost:hover { background: var(--surface-2); }

/* Sections */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-title { font-size: clamp(26px, 4vw, 36px); margin: 0 0 8px; font-weight: 800; }
.section-sub { color: var(--text-dim); margin: 0 0 36px; }

/* Domain grid */
.domain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 18px;
}
.domain-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
  overflow: hidden;
}
.domain-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}
.domain-card .badge {
  align-self: flex-start;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  color: #08101f;
  background: var(--accent-2);
  padding: 4px 10px;
  border-radius: 999px;
}
.domain-name { font-size: 22px; font-weight: 800; word-break: break-all; }
.domain-tld { color: var(--accent); }
.domain-meta { font-size: 13px; color: var(--text-dim); }
.domain-card .btn { margin-top: auto; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}
.contact-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: transform .2s ease, border-color .2s ease;
}
a.contact-card:hover { transform: translateY(-3px); border-color: var(--accent); }
.contact-icon { font-size: 26px; }
.contact-label { font-size: 13px; color: var(--text-dim); }
.contact-value { font-size: 16px; font-weight: 700; word-break: break-all; }
.copy-hint { font-size: 11px; font-weight: 500; color: var(--accent); }

/* Form */
.inquiry-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  max-width: 640px;
}
.inquiry-form h3 { margin: 0 0 18px; font-size: 20px; }
.form-row { display: flex; gap: 14px; flex-wrap: wrap; }
.form-row label { flex: 1; min-width: 220px; }
.inquiry-form label { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; font-size: 14px; color: var(--text-dim); }
.inquiry-form input,
.inquiry-form textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 13px;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  resize: vertical;
}
.inquiry-form input:focus,
.inquiry-form textarea:focus { outline: none; border-color: var(--accent); }
.inquiry-form .btn { width: 100%; }

/* Footer */
.site-footer { padding: 36px 0; border-top: 1px solid var(--border); color: var(--text-dim); font-size: 14px; }
.footer-inner p { margin: 4px 0; }
.footer-note { font-size: 12px; opacity: .8; }

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(20px);
  background: var(--surface-2);
  border: 1px solid var(--accent);
  color: var(--text);
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s, transform .25s;
  z-index: 100;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 560px) {
  .nav { gap: 14px; }
  .hero { padding: 60px 0 40px; }
}