/* ==========================================================================
   名爵机器人官网 内页骨架：企业门户 · 公告条 + 居中 Hero + 三列矩阵 + 里程碑
   ========================================================================== */

:root {
  --co-blue: #1d4ed8;
  --co-blue-dk: #1e3a8a;
  --co-sky: #3b82f6;
  --co-bg: #ffffff;
  --co-soft: #f5f8ff;
  --co-ink: #0f172a;
  --co-muted: #5b6b85;
  --co-line: #e3eaf6;
}

body.co-page { background: var(--co-bg); color: var(--co-ink); }

.co-page .brand-mark { background: linear-gradient(140deg, #60a5fa, #1d4ed8); color: #fff; box-shadow: 0 6px 16px rgba(29, 78, 216, .28); }
.co-page .brand-text em { color: var(--co-blue); }
.co-page .site-nav a.is-active { color: var(--co-blue); background: rgba(29, 78, 216, .08); }
.co-page .btn-login { background: linear-gradient(135deg, #3b82f6, #1d4ed8); box-shadow: 0 8px 20px rgba(29, 78, 216, .26); }

/* ---------------- 公告条 ---------------- */
.co-notice {
  background: var(--co-blue-dk);
  color: #dbeafe;
  font-size: 13px;
}

.co-notice .container {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-block: 10px;
}

.co-notice .badge {
  flex: none;
  padding: 2px 9px;
  border-radius: 4px;
  background: rgba(255, 255, 255, .16);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
}

.co-notice p { flex: 1; }
.co-notice a { color: #fff; font-weight: 700; border-bottom: 1px solid rgba(255, 255, 255, .4); }

/* ---------------- Hero ---------------- */
.co-hero {
  position: relative;
  overflow: hidden;
  padding: 70px 0 88px;
  text-align: center;
  background:
    radial-gradient(760px 420px at 50% 0%, rgba(59, 130, 246, .14), transparent 66%),
    linear-gradient(180deg, #ffffff, var(--co-soft));
  border-bottom: 1px solid var(--co-line);
}

.co-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, .06) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(ellipse at 50% 20%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 20%, #000, transparent 70%);
  pointer-events: none;
}

.co-hero-inner { position: relative; z-index: 2; }

.co-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 6px;
  background: rgba(29, 78, 216, .08);
  border: 1px solid rgba(29, 78, 216, .18);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--co-blue);
  letter-spacing: 1px;
}

.co-hero h1 {
  margin: 22px auto 16px;
  max-width: 860px;
  font-size: clamp(32px, 4.6vw, 54px);
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -.6px;
}

.co-hero h1 span { color: var(--co-blue); }

.co-hero .lead {
  max-width: 680px;
  margin: 0 auto;
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--co-muted);
}

.co-hero .lead strong { color: var(--co-ink); }

.co-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin: 30px 0 0;
}

.co-actions .btn-primary {
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
  color: #fff;
  box-shadow: 0 16px 34px rgba(29, 78, 216, .3);
}

.co-actions .btn-room {
  background: #fff;
  border: 1px solid var(--co-line);
  color: var(--co-blue-dk);
}

.co-actions .btn-room b { color: var(--co-blue); letter-spacing: 1.5px; }

.co-visual {
  position: relative;
  z-index: 2;
  width: min(100%, 760px);
  margin: 44px auto 0;
}

.co-visual img {
  width: 100%;
  border-radius: 18px;
  border: 1px solid var(--co-line);
  box-shadow: 0 30px 60px rgba(30, 58, 138, .14);
}

/* ---------------- 产品矩阵 ---------------- */
.co-section { padding: 84px 0; }
.co-section.soft { background: var(--co-soft); border-block: 1px solid var(--co-line); }

.co-head { max-width: 720px; margin-bottom: 40px; }

.co-head .k {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 3px;
  color: var(--co-blue);
}

.co-head h2 {
  margin: 12px 0 10px;
  font-size: clamp(25px, 3.1vw, 36px);
  font-weight: 900;
  line-height: 1.3;
}

.co-head p { font-size: 15.5px; color: var(--co-muted); }

.matrix {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--co-line);
  border-radius: 16px;
  overflow: hidden;
  background: #fff;
}

.matrix-cell {
  padding: 32px 30px;
  border-right: 1px solid var(--co-line);
  transition: background .22s;
}

.matrix-cell:last-child { border-right: 0; }
.matrix-cell:hover { background: #f9fbff; }

.matrix-cell .ico {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: #eff5ff;
  color: var(--co-blue);
  font-size: 20px;
  margin-bottom: 16px;
}

.matrix-cell h3 { font-size: 18px; font-weight: 800; margin-bottom: 8px; }
.matrix-cell p { font-size: 14px; line-height: 1.85; color: var(--co-muted); }
.matrix-cell .link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 16px;
  font-size: 13px;
  font-weight: 700;
  color: var(--co-blue);
}

/* ---------------- 里程碑 ---------------- */
.milestones {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 2px solid var(--co-blue-dk);
}

.mile {
  padding: 28px 24px;
  border-right: 1px solid var(--co-line);
}

.mile:last-child { border-right: 0; }

.mile .v {
  font-family: Georgia, serif;
  font-size: 34px;
  font-weight: 700;
  color: var(--co-blue-dk);
  line-height: 1.1;
}

.mile .l { margin-top: 6px; font-size: 13px; color: var(--co-muted); }

/* ---------------- 接入方式 ---------------- */
.access {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 52px;
  align-items: center;
}

.access-list { display: grid; gap: 0; border-top: 1px solid var(--co-line); }

.access-row {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 22px 4px;
  border-bottom: 1px solid var(--co-line);
}

.access-row .n {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--co-blue);
}

.access-row h3 { font-size: 15.5px; font-weight: 800; margin-bottom: 3px; }
.access-row p { font-size: 13.5px; color: var(--co-muted); line-height: 1.75; }

.access-row .go {
  padding: 7px 14px;
  border-radius: 7px;
  border: 1px solid var(--co-line);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--co-blue);
  white-space: nowrap;
  transition: background .2s, border-color .2s, color .2s;
}

.access-row:hover .go { background: var(--co-blue); border-color: var(--co-blue); color: #fff; }

.access-note {
  padding: 34px 32px;
  border-radius: 16px;
  background: linear-gradient(150deg, #0f2a52, #16376b);
  color: #dbeafe;
}

.access-note h3 { font-size: 20px; font-weight: 900; color: #fff; margin-bottom: 12px; }
.access-note p { font-size: 14.5px; line-height: 1.9; color: #a9c4e8; }
.access-note p + p { margin-top: 10px; }

.access-note .stat {
  display: flex;
  gap: 28px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .16);
}

.access-note .stat b { display: block; font-family: Georgia, serif; font-size: 24px; color: #fff; }
.access-note .stat span { font-size: 12px; color: #8fb0d8; }

/* ---------------- 联系 ---------------- */
.co-contact {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
  padding: 44px 46px;
  border-radius: 18px;
  background: var(--co-soft);
  border: 1px solid var(--co-line);
}

.co-contact h2 { font-size: clamp(22px, 2.6vw, 30px); font-weight: 900; margin-bottom: 8px; }
.co-contact p { font-size: 14.5px; color: var(--co-muted); }

.co-contact .row { display: flex; flex-wrap: wrap; gap: 12px; }

.co-contact .tg {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 24px;
  border-radius: 11px;
  background: #fff;
  border: 1px solid var(--co-line);
  font-size: 14.5px;
  font-weight: 700;
  transition: border-color .2s;
}

.co-contact .tg:hover { border-color: var(--co-blue); }

/* 入场 */
[data-reveal] { opacity: 0; transform: translateY(20px); transition: opacity .7s, transform .7s; }
[data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1000px) {
  .co-hero { padding: 54px 0 66px; }
  .matrix { grid-template-columns: 1fr; }
  .matrix-cell { border-right: 0; border-bottom: 1px solid var(--co-line); }
  .matrix-cell:last-child { border-bottom: 0; }
  .milestones { grid-template-columns: 1fr 1fr; }
  .mile:nth-child(2) { border-right: 0; }
  .mile:nth-child(-n+2) { border-bottom: 1px solid var(--co-line); }
  .access { grid-template-columns: 1fr; gap: 30px; }
  .co-contact { grid-template-columns: 1fr; padding: 32px 26px; }
}

@media (max-width: 640px) {
  .co-hero h1 { font-size: 30px; }
  .co-actions .btn { width: 100%; }
  .co-section { padding: 60px 0; }
  .milestones { grid-template-columns: 1fr; }
  .mile { border-right: 0; border-bottom: 1px solid var(--co-line); }
  .access-row { grid-template-columns: 40px 1fr; }
  .access-row .go { grid-column: 2; justify-self: start; }
  .co-notice .container { flex-wrap: wrap; }
  .co-contact .row .btn, .co-contact .row .tg { width: 100%; }
}