/* ============================================================
   mygongfu.com V1 — 产品页样式（product-v1）
   MGF-H-003：AI 方案汇报工作流
   依赖 tokens.css / base.css / components.css / immersive.css / p0-trust.css
   ============================================================ */

/* ---------- 产品 Hero ---------- */
.pv-hero {
  padding: clamp(72px, 9vw, 128px) clamp(24px, 5vw, 80px) clamp(48px, 6vw, 80px);
  border-bottom: 1px solid var(--line-1);
}
.pv-hero .eyebrow { margin-bottom: 26px; }
.pv-hero h1 { margin: 0 0 20px; font-size: clamp(2rem, 4.4vw, 3.2rem); line-height: 1.16; letter-spacing: -0.02em; max-width: 720px; }
.pv-hero__intro { margin: 0 0 32px; max-width: 620px; color: var(--text-2); font-size: clamp(1.02rem, 1.8vw, 1.22rem); line-height: 1.7; }
.pv-hero__flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0 0 32px;
  padding: 18px 20px;
  border: 1px solid var(--line-1);
  border-radius: 6px;
  background: color-mix(in srgb, var(--ink-1) 75%, transparent);
  max-width: 680px;
}
.pv-hero__flow-step {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line-2);
  border-radius: 4px;
  padding: 8px 14px;
  background: color-mix(in srgb, var(--ink-0) 55%, transparent);
}
.pv-hero__flow-ico { font-size: 1.1rem; line-height: 1; }
.pv-hero__flow-label { font-size: .88rem; color: var(--text-1); white-space: nowrap; }
.pv-hero__flow-arrow { color: var(--signal); font-family: var(--font-data); }
.pv-hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- 对比：传统流程 vs 耗时问题 ---------- */
.pv-compare {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.pv-compare__col { border: 1px solid var(--line-1); border-radius: 6px; padding: clamp(24px, 3vw, 36px); background: color-mix(in srgb, var(--ink-1) 75%, transparent); }
.pv-compare__col h2 { margin: 0 0 18px; font-size: 1.25rem; }
.pv-compare__col ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.pv-compare__col li { color: var(--text-2); line-height: 1.6; padding-left: 22px; position: relative; }
.pv-compare__col li::before { content: "—"; position: absolute; left: 0; color: var(--signal); font-family: var(--font-data); }
.pv-compare__col--pain { border-color: color-mix(in srgb, var(--danger) 40%, var(--line-1)); }
.pv-compare__col--pain li::before { color: var(--danger); }

/* ---------- AI Workflow 流程 ---------- */
.pv-flow { display: grid; gap: 1px; background: var(--line-1); border: 1px solid var(--line-1); }
.pv-flow__row {
  background: var(--ink-1);
  padding: clamp(20px, 2.8vw, 32px);
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
}
.pv-flow__phase { font-family: var(--font-data); font-size: .78rem; letter-spacing: .05em; color: var(--signal); padding-top: 4px; }
.pv-flow__body h3 { margin: 0 0 8px; font-size: 1.1rem; }
.pv-flow__body p { margin: 0; color: var(--text-2); line-height: 1.65; }

/* ---------- 输入 / 输出 ---------- */
.pv-io { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.pv-io__col { border: 1px solid var(--line-1); border-radius: 6px; padding: clamp(24px, 3vw, 36px); background: color-mix(in srgb, var(--ink-1) 75%, transparent); }
.pv-io__col h2 { margin: 0 0 18px; font-size: 1.25rem; }
.pv-io__col ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.pv-io__col li { color: var(--text-2); line-height: 1.6; padding-left: 22px; position: relative; }
.pv-io__col li::before { content: "→"; position: absolute; left: 0; color: var(--signal); font-family: var(--font-data); }

/* ---------- Demo ---------- */
.pv-demo { border: 1px solid var(--line-1); border-radius: 6px; overflow: hidden; }
.pv-demo__bar {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 14px 20px; border-bottom: 1px solid var(--line-1);
  font-family: var(--font-data); font-size: .74rem; letter-spacing: .05em; color: var(--text-3);
  background: color-mix(in srgb, var(--ink-1) 85%, transparent);
}
.pv-demo__steps { display: grid; }
.pv-demo__step {
  display: grid; grid-template-columns: 92px 1fr; gap: 20px;
  padding: clamp(18px, 2.6vw, 28px) clamp(20px, 3vw, 36px);
  border-bottom: 1px solid var(--line-1);
}
.pv-demo__step:last-child { border-bottom: 0; }
.pv-demo__label { font-family: var(--font-data); font-size: .76rem; color: var(--signal); padding-top: 3px; }
.pv-demo__body p { margin: 0; color: var(--text-2); line-height: 1.7; }
.pv-demo__body strong { color: var(--text-1); }
.pv-demo__body .pv-demo__sample {
  margin-top: 12px; border: 1px dashed var(--line-2); border-radius: 4px;
  padding: 14px 16px; font-size: .9rem; color: var(--text-2); line-height: 1.65;
  background: color-mix(in srgb, var(--ink-0) 55%, transparent);
}
.pv-demo__note { padding: 14px 20px; color: var(--text-3); font-family: var(--font-data); font-size: .72rem; letter-spacing: .02em; }

/* ---------- 收尾 CTA ---------- */
.pv-cta {
  text-align: center; border: 1px solid var(--line-1); border-radius: 6px;
  padding: clamp(48px, 7vw, 88px) clamp(24px, 5vw, 64px);
  background: color-mix(in srgb, var(--ink-1) 85%, transparent);
}
.pv-cta h2 { margin: 0 0 14px; font-size: clamp(1.5rem, 3vw, 2.2rem); line-height: 1.3; }
.pv-cta p { margin: 0 auto 30px; max-width: 500px; color: var(--text-2); line-height: 1.7; }
.pv-cta .button { min-width: 220px; }

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
  .pv-flow__row { grid-template-columns: 1fr; gap: 10px; }
  .pv-demo__step { grid-template-columns: 1fr; gap: 8px; }
  .pv-hero__actions { flex-direction: column; }
  .pv-hero__actions .button { width: 100%; }
}