/* ============================================================
   项目详情页样式 — Project Detail Pages
   复用 style.css 设计变量，仅新增详情页专属布局
   ============================================================ */

/* ---------- 详情页导航（含项目下拉） ---------- */
.p-nav-links .nav-cta { margin-left: 6px; }

/* ---------- 详情页 Hero ---------- */
.p-hero {
  position: relative;
  padding: calc(var(--nav-h) + 70px) 0 56px;
  text-align: center;
}
.p-hero-inner { width: min(900px, 100%); margin: 0 auto; }
.p-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--acc, var(--primary-2));
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid rgba(var(--acc-rgb, 129, 140, 248), .45);
  background: rgba(var(--acc-rgb, 129, 140, 248), .08);
  margin-bottom: 26px;
}
.p-hero-title {
  font-size: clamp(38px, 6.4vw, 64px);
  font-weight: 900;
  letter-spacing: -.03em;
  line-height: 1.1;
}
.p-hero-title em {
  font-style: normal;
  font-size: .45em;
  font-weight: 600;
  color: var(--text-3);
  letter-spacing: .1em;
  margin-left: 12px;
  vertical-align: middle;
}
.p-hero-slogan {
  margin: 18px auto 0;
  font-size: clamp(16px, 2.4vw, 20px);
  color: var(--text-2);
  max-width: 640px;
  line-height: 1.7;
}
.p-hero-actions { margin-top: 34px; display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ---------- 详情页区块 ---------- */
.p-section { width: min(1080px, 92vw); margin: 0 auto; padding: 76px 0; }
.p-section-head { max-width: 720px; margin: 0 auto 48px; text-align: center; }
.p-section-head .section-eyebrow { justify-content: center; }
.p-section-head .section-eyebrow::before { display: none; }
.p-section-head h2 { font-size: clamp(26px, 3.6vw, 36px); font-weight: 800; letter-spacing: -.02em; }
.p-section-head p { margin-top: 14px; color: var(--text-2); font-size: 15px; }

/* ---------- 概览：图文双栏 ---------- */
.p-overview {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 56px;
  align-items: center;
}
.p-overview-text p { color: var(--text-2); font-size: 15.5px; margin-top: 16px; line-height: 1.8; }
.p-overview-text p strong { color: var(--text-1); font-weight: 600; }
.p-overview-visual {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background:
    radial-gradient(360px 240px at 80% -10%, rgba(var(--acc-rgb, 129, 140, 248), .25), transparent 65%),
    linear-gradient(160deg, rgba(var(--acc-rgb, 129, 140, 248), .08), transparent 55%),
    #0b0e20;
  min-height: 320px;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.p-ov-monogram {
  font-family: var(--font-mono);
  font-size: 130px;
  font-weight: 800;
  color: rgba(var(--acc-rgb, 129, 140, 248), .18);
  letter-spacing: -.04em;
  user-select: none;
  transition: color .5s var(--ease);
}
.p-overview-visual:hover .p-ov-monogram { color: rgba(var(--acc-rgb, 129, 140, 248), .34); }
.p-overview-visual::before {
  content: "";
  position: absolute;
  width: 220px; height: 220px;
  border-radius: 50%;
  top: -70px; right: -50px;
  background: radial-gradient(circle, rgba(var(--acc-rgb, 129, 140, 248), .5), transparent 65%);
  filter: blur(40px);
  opacity: .55;
}

/* ---------- 核心能力卡片 ---------- */
.p-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.p-feature {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 30px 26px;
  transition: transform .4s var(--ease), border-color .4s var(--ease), box-shadow .4s var(--ease);
  position: relative;
  overflow: hidden;
}
.p-feature:hover {
  transform: translateY(-5px);
  border-color: rgba(var(--acc-rgb, 129, 140, 248), .4);
  box-shadow: 0 24px 60px -28px rgba(var(--acc-rgb, 129, 140, 248), .35);
}
.p-feature::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ca, var(--acc)), transparent);
  opacity: .85;
}
.p-feature-icon {
  width: 48px; height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: var(--ca, var(--acc));
  background: color-mix(in srgb, var(--ca, var(--acc)) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--ca, var(--acc)) 30%, transparent);
  margin-bottom: 20px;
}
.p-feature h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.p-feature p { font-size: 14px; color: var(--text-2); line-height: 1.7; }

/* ---------- 亮点数字条 ---------- */
.p-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--line);
  box-shadow: var(--shadow-glow);
}
.p-stat {
  background: var(--glass-strong);
  padding: 30px 14px;
  text-align: center;
  transition: background .3s var(--ease);
}
.p-stat:hover { background: rgba(26, 31, 62, .92); }
.p-stat-num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.1;
  background: linear-gradient(100deg, var(--ca, var(--primary)), var(--cc, var(--primary-2)));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.p-stat-label { margin-top: 8px; font-size: 13px; color: var(--text-3); letter-spacing: .05em; }

/* ---------- 技术架构 ---------- */
.p-tech-wrap {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
}
.p-tech-list { display: flex; flex-wrap: wrap; gap: 12px; }
.p-tech-chip {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-1);
  padding: 10px 18px;
  border-radius: 12px;
  border: 1px solid rgba(var(--acc-rgb, 129, 140, 248), .3);
  background: rgba(var(--acc-rgb, 129, 140, 248), .07);
  transition: transform .25s var(--ease), border-color .25s var(--ease);
}
.p-tech-chip:hover { transform: translateY(-2px); border-color: rgba(var(--acc-rgb, 129, 140, 248), .55); }
.p-tech-note { margin-top: 26px; color: var(--text-2); font-size: 14.5px; line-height: 1.8; }

/* ---------- 项目切换导航 ---------- */
.p-switch {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 10px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}
.p-switch a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-2);
  padding: 10px 18px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--glass);
  transition: color .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
}
.p-switch a:hover { color: var(--text-1); border-color: var(--line-strong); transform: translateY(-2px); }
.p-switch a.next { margin-left: auto; }
.p-switch a .sw-tag { font-family: var(--font-mono); font-size: 11px; color: var(--text-3); }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .p-overview, .p-tech-wrap { grid-template-columns: 1fr; gap: 36px; }
  .p-features { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .p-features { grid-template-columns: 1fr; }
  .p-stats { grid-template-columns: repeat(2, 1fr); }
  .p-switch { flex-direction: column; align-items: stretch; }
  .p-switch a.next { margin-left: 0; }
}