/* 不一定科技 · 极简官网
   品牌：蓝 #0060FC / 墨 #181A19 / 底 #0B0C0E */

:root {
  --blue: #0060FC;
  --bg: #0B0C0E;
  --text: #E9EDF2;
  --dim: #8B97A5;
  --line: #22262C;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg) radial-gradient(900px 480px at 12% -6%, rgba(0, 96, 252, .16), transparent 62%) no-repeat;
  color: var(--text);
  font: 16px/1.75 var(--font);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

.wrap { width: calc(100% - 40px); max-width: 1180px; margin-inline: auto; }

/* 顶部：只留标识 */
.site-header { padding: 26px 0; }
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand img { width: 30px; }
.brand .name { font-size: 16px; font-weight: 700; letter-spacing: .04em; }

/* 主区：一句话 */
.stage {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-content: center;
  padding: 8vh 0 12vh;
}
.stage h1 {
  margin: 0;
  font-size: clamp(28px, 5.6vw, 64px);
  line-height: 1.22;
  letter-spacing: -.02em;
  font-weight: 680;
}
.tags {
  margin: 28px 0 0;
  color: var(--dim);
  font-size: clamp(13px, 1.4vw, 15px);
  letter-spacing: .02em;
}

/* 页脚：公司名 + ICP 备案号 */
.site-footer { padding: 22px 0 30px; border-top: 1px solid var(--line); }
.site-footer p { margin: 0; font-size: 12.5px; color: #5F6A77; }
.site-footer .icp { margin-top: 6px; font-size: 12px; }
.site-footer .icp a { color: inherit; text-decoration: none; }
.site-footer .icp a:hover { text-decoration: underline; }

@media (max-width: 520px) {
  .wrap { width: calc(100% - 32px); }
  .stage { padding: 6vh 0 10vh; }
  .tags { margin-top: 22px; }
}


/* ---------- 备选版式（v-b 浅色 / v-c 居中） ---------- */
.v-light { background: #FFFFFF; color: #14161A; }
.v-light .site-header { border-bottom: 1px solid #ECEEF1; }
.v-light .stage h1 { color: #14161A; }
.v-light .tags { color: #6B7480; }
.v-light .site-footer { border-top: 1px solid #ECEEF1; }
.v-light .site-footer p { color: #9AA3AF; }

.v-center .stage { place-content: center; }
.stage-center { text-align: center; width: 100%; }
.stage-center h1 { margin-top: 28px; font-size: clamp(24px, 3.2vw, 42px); line-height: 1.3; }
.stage-center .tags { margin-top: 24px; }
.big-mark { width: 64px; margin: 0 auto; }




.accent { color: #5E9BFF; }


.sub { margin: 22px 0 0; font-size: clamp(13px, 1.3vw, 15px); color: #8B97A5; letter-spacing: .02em; }
.sub .q { color: #C6D1DD; }



/* ---------- 小众定制板块（预览 v-e） ---------- */
.band { border-top: 1px solid var(--line); padding: 72px 0 84px; background: #0A0C0F; }
.band .kicker { color: var(--blue); font-size: 12.5px; letter-spacing: .16em; text-transform: uppercase; margin: 0 0 14px; font-weight: 650; }
.band h2 { margin: 0; font-size: clamp(24px, 3.4vw, 40px); letter-spacing: -.02em; }
.band-lead { margin: 16px 0 0; color: #C6D1DD; font-size: clamp(14px, 1.4vw, 16px); max-width: 46em; }
.band-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 34px; }
.band-item { border: 1px solid var(--line); border-radius: 12px; padding: 22px 20px; background: #111417; }
.band-item h3 { margin: 0 0 8px; font-size: 16px; }
.band-item p { margin: 0; color: var(--dim); font-size: 14px; }
.band-note { margin: 22px 0 0; font-size: 12.5px; color: #5F6A77; }
@media (max-width: 820px) {
  .band { padding: 52px 0 60px; }
  .band-grid { grid-template-columns: 1fr; }
}

/* 页脚备案信息 */
.site-footer .icp { margin: 6px 0 0; font-size: 12px; color: #5F6A77; }
.site-footer .icp a { color: #5F6A77; }
.site-footer .icp a:hover { color: var(--text); text-decoration: underline; }
.site-footer .police { margin: 4px 0 0; font-size: 12px; color: #5F6A77; }
.site-footer .police a { color: #5F6A77; display: inline-flex; align-items: center; gap: 4px; }
.site-footer .police a:hover { color: var(--text); text-decoration: underline; }
.site-footer .shield { width: 14px; height: 14px; flex: none; }