:root {
  --primary: #E8735A;
  --primary-dark: #C4503A;
  --primary-light: #F5A48B;
  --secondary: #F7C59F;
  --accent: #D4507A;
  --ink: #1b1f24;
  --fg: #222831;
  --muted: #5b6573;
  --bg: #f0f1f3;
  --gold: #ea580c;
  --rule: #cfd4dd;
}
/* com10 — Industrial Steel 工业制造 / 钢灰 + 安全橙 + 等宽字 + 技术线 */

body { background: #f0f1f3; color: #222831; font-family: "IBM Plex Sans","Inter","PingFang SC",sans-serif; -webkit-font-smoothing: antialiased; letter-spacing: 0.005em; line-height: 1.7; }
.font-display { font-family: "IBM Plex Mono","JetBrains Mono",monospace; letter-spacing: -0.012em; }
.font-headline { font-family: "IBM Plex Mono","JetBrains Mono",monospace; font-weight: 600; }

.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--gold, var(--accent)));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

@keyframes fade-up { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.animate-fade-up { animation: fade-up 0.7s ease-out both; }


::-webkit-scrollbar { width: 7px; }
::-webkit-scrollbar-track { background: #f0f1f3; }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 2px; }
::selection { background: var(--primary); color: #fff; }

/* 主题专属按钮重塑 */
a, button { transition: all 0.22s ease; }
.btn-themed { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.85rem 1.7rem; font-weight: 700; font-family: "IBM Plex Mono","JetBrains Mono",monospace; font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; background: var(--primary); color: #fff; border-radius: 2px; border: 1px solid var(--primary); }
.btn-themed:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-1px); }

/* 卡片重塑 — round / sharp / pill */
.card-themed { background: #fff; border-radius: 0; border: 1px solid var(--rule); transition: transform .25s ease, box-shadow .25s ease; }
.card-themed:hover { transform: translateY(-3px); box-shadow: 0 20px 38px -16px rgba(15,52,63,.22); }

/* tag / chip */
.chip-themed { display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.7rem; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; padding: 0.3rem 0.8rem; border-radius: 0; background: rgba(0,0,0,.04); color: var(--primary); }

/* eyebrow / kicker */
.kicker { font-family: "IBM Plex Mono","JetBrains Mono",monospace; font-size: 0.72rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--primary); }

.bg-soft { background: #f0f1f3; } .ring-soft { box-shadow: inset 0 0 0 1px var(--rule); }


/* Industrial 工程图网格 */
.tech-grid { background-image: linear-gradient(0deg, transparent 0 47px, rgba(234,88,12,.06) 47px 48px), linear-gradient(90deg, transparent 0 47px, rgba(234,88,12,.06) 47px 48px); background-size: 48px 48px; }
.spec-label::before { content: "▶ "; color: var(--primary); }





@media print { nav, footer, .no-print { display: none !important; } body { background: #fff !important; color: #000 !important; } }