/* ===== 税务帮 · 销售信页专用样式（叠加在 style.css 之上） ===== */

.letter-body { background: #fff; }

main.letter {
  width: min(760px, 92%);
  margin: 0 auto;
  padding: 56px 0 40px;
}

/* ---- Hero ---- */
.l-hero { text-align: center; padding: 12px 0 48px; }
.l-eyebrow {
  display: inline-block; font-size: 13px; letter-spacing: 3px;
  color: var(--ink-soft); margin-bottom: 20px;
  padding: 4px 14px; border: 1px solid var(--line); border-radius: 999px;
}
.l-title { font-size: clamp(30px, 5.4vw, 46px); font-weight: 900; line-height: 1.3; letter-spacing: 1px; }
.l-sub {
  margin: 22px auto 0; max-width: 620px;
  font-size: 16px; color: var(--ink-soft); line-height: 1.9; text-align: left;
  background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 18px 22px;
}
.l-sub b { color: var(--red-deep); }
.l-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }
.l-micro { margin-top: 18px; font-size: 13px; color: var(--ink-soft); }

/* ---- 通用节 ---- */
.l-sec { padding: 40px 0; border-top: 1px dashed var(--line); }
.l-sec:first-of-type { border-top: none; }
.l-sec h2 { font-size: clamp(21px, 3.4vw, 27px); font-weight: 900; margin-bottom: 18px; line-height: 1.5; }
.l-sec p { font-size: 15.5px; line-height: 2; color: var(--ink); margin-bottom: 14px; }
.l-sec > p:last-child { margin-bottom: 0; }
.l-note { font-size: 14px !important; color: var(--red-deep) !important; background: var(--red-light); border-radius: 8px; padding: 10px 14px !important; }

/* ---- 自检清单 ---- */
.check-list { display: flex; flex-direction: column; gap: 12px; }
.check-list li {
  position: relative; padding: 14px 16px 14px 44px;
  background: var(--paper); border: 1px solid var(--line); border-radius: 10px;
  font-size: 15px; line-height: 1.9; color: var(--ink);
}
.check-list li.bad::before {
  content: "✗"; position: absolute; left: 14px; top: 13px;
  color: var(--red); font-weight: 900; font-size: 18px;
}

/* ---- 原因三卡 ---- */
.reason-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 20px 0; }
.reason { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.reason b { display: block; font-size: 15.5px; font-weight: 900; margin-bottom: 8px; }
.reason p { font-size: 13.5px !important; color: var(--ink-soft) !important; line-height: 1.9 !important; margin: 0 !important; }

.pull-quote {
  font-size: 18px !important; font-weight: 900; text-align: center;
  padding: 22px 16px !important; margin: 26px 0 6px !important;
  border-top: 2px solid var(--red) !important; border-bottom: 2px solid var(--red) !important;
  color: var(--red) !important;
}

/* ---- 模块矩阵 ---- */
.module-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 18px; }
.mod-card { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; }
.mod-card > b { display: block; font-size: 15.5px; font-weight: 900; margin-bottom: 10px; }
.mod-card ul { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.mod-card li { font-size: 13.5px; color: var(--ink-soft); padding-left: 16px; position: relative; line-height: 1.7; }
.mod-card li::before { content: "·"; position: absolute; left: 4px; font-weight: 900; color: var(--gold); }

.ok-tag, .warn-tag, .ok2-tag {
  display: inline-block; font-size: 12px; font-weight: 700;
  padding: 2px 10px; border-radius: 999px; margin: 0 3px;
}
.ok-tag { background: #f0f7f2; color: var(--ok); border: 1px solid #cfe3d6; }
.warn-tag { background: #fdf6ec; color: var(--warn); border: 1px solid #e8d5b5; }
.ok2-tag { background: #f1ede9; color: var(--ink-soft); border: 1px solid var(--line); }

/* ---- 交付物 ---- */
.deliverables { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.deli-card { border: 1px solid var(--line); border-radius: 12px; padding: 20px; position: relative; }
.deli-num { font-size: 12px; color: var(--gold); font-weight: 700; letter-spacing: 2px; }
.deli-card b { display: block; font-size: 16px; font-weight: 900; margin: 6px 0 8px; }
.deli-card p { font-size: 13.5px !important; color: var(--ink-soft) !important; line-height: 1.9 !important; margin: 0 !important; }

/* ---- 步骤 ---- */
.steps { list-style: none; counter-reset: step; display: flex; flex-direction: column; gap: 10px; }
.steps li {
  counter-increment: step;
  padding: 14px 16px 14px 56px; position: relative;
  background: var(--paper); border: 1px solid var(--line); border-radius: 10px;
  font-size: 15px; line-height: 1.8;
}
.steps li::before {
  content: counter(step);
  position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--red); color: #fff; font-weight: 900;
  display: flex; align-items: center; justify-content: center; font-size: 14px;
}
.steps b { color: var(--red-deep); }

/* ---- 价格卡 ---- */
.price-card {
  max-width: 460px; margin: 26px auto 0;
  background: #fff; border: 2px solid var(--red); border-radius: 16px;
  overflow: hidden; box-shadow: 0 24px 60px -30px rgba(166,58,50,.45);
}
.pc-head { display: flex; justify-content: space-between; align-items: center; padding: 16px 22px; background: var(--red); color: #fff; }
.pc-head b { font-size: 17px; font-weight: 900; }
.pc-head span { font-size: 12px; opacity: .85; }
.pc-price { text-align: center; padding: 22px 0 6px; }
.pc-price b { font-size: 52px; font-weight: 900; color: var(--red); }
.pc-price small { display: block; font-size: 13px; color: var(--ink-soft); text-decoration: line-through; }
.pc-list { list-style: none; padding: 10px 26px 6px; display: flex; flex-direction: column; gap: 9px; }
.pc-list li { font-size: 14px; color: var(--ink); line-height: 1.7; }
.pc-list li b { color: var(--red-deep); }
.price-card .btn { margin: 14px 22px 0; }
.pc-note { text-align: center; font-size: 12.5px !important; color: var(--ink-soft) !important; padding: 12px 22px 18px !important; margin: 0 !important; }

/* ---- FAQ ---- */
.faq { border: 1px solid var(--line); border-radius: 10px; margin-bottom: 10px; background: var(--paper); }
.faq summary {
  cursor: pointer; padding: 14px 18px; font-size: 15px; font-weight: 700;
  list-style: none; position: relative; padding-right: 36px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
  font-size: 20px; font-weight: 900; color: var(--red);
}
.faq[open] summary::after { content: "−"; }
.faq p { padding: 0 18px 16px; font-size: 14.5px; color: var(--ink-soft); margin: 0; line-height: 2; }

/* ---- 最终CTA ---- */
.l-final { text-align: center; padding-bottom: 56px; }
.l-final h2 { font-size: clamp(24px, 4vw, 34px); }
.final-contact { display: flex; flex-direction: column; align-items: center; gap: 18px; margin-top: 24px; }
.fc-rows { display: flex; flex-direction: column; gap: 8px; font-size: 14.5px; color: var(--ink-soft); }

/* ---- 响应式 ---- */
@media (max-width: 960px) {
  .reason-grid, .deliverables { grid-template-columns: 1fr; }
  .module-grid { grid-template-columns: 1fr; }
  main.letter { padding-top: 40px; }
}
@media (max-width: 480px) {
  .l-cta .btn { width: 100%; }
  .price-card .btn { width: calc(100% - 44px); }
  .l-sub { font-size: 15px; }
}