/* ===== 智能工坊展示站 ===== */
:root {
  --bg: #0d0f12;
  --bg-alt: #12151a;
  --card: #171b21;
  --border: #262c35;
  --text: #e8eaee;
  --muted: #8b93a1;
  --accent: #00e5a0;
  --accent-dim: rgba(0, 229, 160, .12);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  line-height: 1.6;
}

/* ---- 导航 ---- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(13,15,18,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1120px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.logo { font-size: 20px; font-weight: 700; letter-spacing: 1px; }
.logo-sub { font-size: 11px; color: var(--muted); margin-left: 8px; letter-spacing: 2px; font-weight: 400; }
.nav-links a {
  color: var(--muted); text-decoration: none; margin-left: 28px; font-size: 14px;
  transition: color .2s;
}
.nav-links a:hover { color: var(--accent); }

/* ---- Hero ---- */
.hero {
  padding: 110px 24px 90px;
  background:
    radial-gradient(ellipse 60% 50% at 70% 20%, rgba(0,229,160,.08), transparent),
    var(--bg);
}
.hero-inner { max-width: 1120px; margin: 0 auto; }
.hero-eyebrow {
  color: var(--accent); font-size: 13px; letter-spacing: 4px;
  text-transform: uppercase; margin-bottom: 20px; font-weight: 600;
}
.hero h1 {
  font-size: clamp(44px, 7vw, 76px);
  line-height: 1.12; font-weight: 800; letter-spacing: 2px;
  margin-bottom: 24px;
}
.hero-sub { color: var(--muted); font-size: 17px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 13px 30px; border-radius: 8px;
  font-size: 15px; font-weight: 600; text-decoration: none;
  transition: transform .15s, box-shadow .15s;
}
.btn:active { transform: scale(.97); }
.btn-primary {
  background: var(--accent); color: #06281c;
  box-shadow: 0 4px 24px rgba(0,229,160,.25);
}
.btn-primary:hover { box-shadow: 0 6px 32px rgba(0,229,160,.4); }
.btn-ghost { border: 1px solid var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.hero-stats {
  display: flex; gap: 48px; margin-top: 64px; flex-wrap: wrap;
}
.hero-stats b { font-size: 30px; color: var(--accent); display: block; font-weight: 800; }
.hero-stats span { color: var(--muted); font-size: 13px; }

/* ---- 区块 ---- */
.section { padding: 90px 24px; max-width: 1120px; margin: 0 auto; }
.section-alt {
  max-width: none; background: var(--bg-alt);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.section-alt > * { max-width: 1120px; margin-left: auto; margin-right: auto; }
.section-head { margin-bottom: 40px; }
.section-head h2 { font-size: 32px; font-weight: 800; letter-spacing: 1px; margin-bottom: 10px; }
.section-head p { color: var(--muted); }

/* ---- 筛选 ---- */
.filters { display: flex; gap: 10px; margin-bottom: 32px; flex-wrap: wrap; }
.chip {
  background: var(--card); border: 1px solid var(--border); color: var(--muted);
  padding: 8px 20px; border-radius: 999px; font-size: 14px; cursor: pointer;
  transition: all .2s;
}
.chip:hover { border-color: var(--accent); color: var(--text); }
.chip.active { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }

/* ---- 设计卡片 ---- */
.grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(480px, 1fr)); gap: 24px;
}
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  overflow: hidden; transition: border-color .25s, transform .25s;
}
.card:hover { border-color: var(--accent); transform: translateY(-3px); }
.card-canvas { background: #0a0c0f; padding: 0; position: relative; }
.card-canvas svg { width: 100%; height: auto; display: block; padding: 8px 0; }
.render-img { width: 100%; display: block; aspect-ratio: 16 / 10; object-fit: cover; }
.mockup-badge {
  position: absolute; top: 10px; right: 10px;
  background: rgba(0,0,0,.65); color: var(--muted);
  font-size: 11px; padding: 3px 10px; border-radius: 999px;
  border: 1px solid var(--border);
}
.swatch.render-btn {
  background: var(--accent-dim); color: var(--accent);
  font-size: 11px; font-weight: 800; line-height: 18px;
  text-align: center; border-color: rgba(0,229,160,.35);
}
.card-body { padding: 18px 22px 22px; }
.card-top { display: flex; align-items: baseline; justify-content: space-between; }
.card-name { font-size: 19px; font-weight: 700; }
.card-name .cn { margin-right: 10px; }
.card-name .en { font-size: 12px; color: var(--muted); letter-spacing: 2px; font-weight: 400; }
.card-price { color: var(--accent); font-weight: 700; font-size: 17px; white-space: nowrap; }
.card-price small { color: var(--muted); font-weight: 400; font-size: 12px; margin-right: 2px; }
.card-tags { margin: 8px 0 12px; display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
  font-size: 12px; color: var(--muted); border: 1px solid var(--border);
  padding: 3px 10px; border-radius: 999px;
}
.tag.style { color: var(--accent); border-color: rgba(0,229,160,.35); }
.card-desc { color: var(--muted); font-size: 13.5px; margin-bottom: 14px; }
.card-foot { display: flex; align-items: center; justify-content: space-between; }
.swatches { display: flex; gap: 8px; align-items: center; }
.swatches span { font-size: 12px; color: var(--muted); margin-right: 2px; }
.swatch {
  width: 22px; height: 22px; border-radius: 50%; cursor: pointer;
  border: 2px solid transparent; transition: border-color .2s, transform .15s;
}
.swatch:hover { transform: scale(1.15); }
.swatch.active { border-color: var(--accent); }
.card-kit { font-size: 12px; color: var(--muted); }

/* ---- 工艺 ---- */
.craft-steps {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px;
}
.step {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  padding: 28px 26px;
}
.step-num {
  font-size: 13px; color: var(--accent); font-weight: 800; letter-spacing: 2px;
  margin-bottom: 14px;
}
.step h3 { font-size: 18px; margin-bottom: 10px; }
.step p { color: var(--muted); font-size: 14px; }

/* ---- 定制 ---- */
.custom-box {
  background: linear-gradient(135deg, rgba(0,229,160,.10), rgba(0,229,160,.02));
  border: 1px solid rgba(0,229,160,.3); border-radius: 18px;
  padding: 48px; display: flex; align-items: center; justify-content: space-between;
  gap: 32px; flex-wrap: wrap;
}
.custom-box h2 { font-size: 28px; margin-bottom: 10px; }
.custom-box p { color: var(--muted); max-width: 560px; }

/* ---- 页脚 ---- */
.footer {
  border-top: 1px solid var(--border); padding: 40px 24px 48px;
  text-align: center; color: var(--muted); font-size: 14px;
}
.footer-sub { font-size: 12px; margin-top: 6px; opacity: .6; }