/* ============================================================
   阅读机考速通课（6 节整套）详情页 · 克制设计系统
   - 字体：Arial + 微软雅黑（与站内一致）
   - 宽度：580（窄） / 760（宽）两档
   - 颜色：黑字 + 主蓝（CTA）+ 高亮黄；不靠彩色卡片
   - 圆角：8px 卡片 / 12px 大区块
   - 分区：靠分隔线、留白和灰底带，不靠色块堆
   ============================================================ */

:root {
  --bg: #f6f8fc;
  --surface: #ffffff;
  --ink: #161816;
  --ink-2: #475569;
  --ink-3: #94a3b8;
  --line: #dbe2e9;
  --line-2: #e5e7eb;
  --brand: #1d4ed8;
  --brand-soft: #eff6ff;
  --highlight: #fff3b0;
}

/* ----- Hero ----- */
.rc-hero { padding: 64px 0 12px; text-align: center; }
.rc-hero .section-tag {
  font-family: Arial, "Microsoft YaHei", "微软雅黑", sans-serif;
  color: var(--brand);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.rc-hero h1 {
  margin: 0 auto 18px;
  max-width: 760px;
  font-size: 2rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0;
  line-height: 1.3;
}
.rc-lead {
  margin: 0 auto 14px;
  max-width: 580px;
  color: var(--ink-2);
  font-size: 1rem;
  line-height: 1.85;
}
.rc-lead b { color: var(--ink); font-weight: 700; }
.rc-byline {
  margin: 0 auto 22px;
  max-width: 580px;
  color: var(--ink-3);
  font-size: 0.85rem;
}
.rc-hero .hero-actions { margin-top: 8px; }
.rc-hero .primary-button {
  display: inline-block;
  padding: 12px 28px;
  background: var(--brand);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 8px;
  text-decoration: none;
  transition: opacity .15s;
}
.rc-hero .primary-button:hover { opacity: 0.9; }

/* ----- 价值段（蓝条） ----- */
.rc-value {
  width: min(760px, calc(100% - 32px));
  margin: 48px auto 0;
  padding: 28px 32px;
  background: var(--brand-soft);
  border-left: 4px solid var(--brand);
  border-radius: 0 8px 8px 0;
}
.rc-value .value-eyebrow {
  margin: 0 0 14px;
  font-family: Arial, "Microsoft YaHei", "微软雅黑", sans-serif;
  color: var(--brand);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.rc-value h2 {
  margin: 0 0 14px;
  font-family: Arial, "Microsoft YaHei", "微软雅黑", sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.4;
}
.rc-value h2 b { color: var(--brand); }
.rc-value .value-lead {
  margin: 0 0 12px;
  font-size: 0.95rem;
  color: var(--ink-2);
  line-height: 1.85;
}
.rc-value .value-lead b { color: var(--ink); font-weight: 700; }
.rc-value .value-extra {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-2);
  line-height: 1.7;
  padding-top: 10px;
  border-top: 1px dashed var(--line-2);
}

/* ----- 三大模块 · 灰底带 + 极简 3 卡（不堆课程内容） ----- */
.rc-modules-band {
  margin: 64px 0 0;
  background: #f1f5fb;       /* 浅蓝灰底带，与白底交替 */
  padding: 64px 0;
}
.rc-modules-inner {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
}
.rc-modules-inner .section-tag.center {
  text-align: center;
  font-family: Arial, "Microsoft YaHei", "微软雅黑", sans-serif;
  color: var(--brand);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin: 0 0 28px;
}
.rc-modules {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}
.rc-module {
  padding: 26px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
}
.rc-module .module-tag {
  display: inline-block;
  font-family: Arial, "Microsoft YaHei", "微软雅黑", sans-serif;
  color: var(--brand);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
  align-self: flex-start;
}
.rc-module .module-title {
  display: block;
  font-family: Arial, "Microsoft YaHei", "微软雅黑", sans-serif;
  font-size: 1.2rem;
  color: var(--ink);
  font-weight: 700;
  margin-bottom: 12px;
}
.rc-module p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-2);
  line-height: 1.85;
}
.rc-module p a {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1.5px solid var(--brand);
  padding-bottom: 1px;
  transition: color .15s, border-color .15s;
}
.rc-module p a:hover { color: var(--brand); }

/* ----- 适合谁 / 怎么学 · 两栏并列 ----- */
.rc-fithow {
  width: min(760px, calc(100% - 32px));
  margin: 56px auto 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.rc-fit, .rc-how { padding: 0; }
.rc-h.left {
  text-align: left;
  font-family: Arial, "Microsoft YaHei", "微软雅黑", sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 16px;
  width: auto;
}
.rc-fit ul, .rc-how ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.rc-fit li, .rc-how li {
  padding: 12px 0 12px 18px;
  position: relative;
  font-size: 0.92rem;
  color: var(--ink-2);
  line-height: 1.85;
  border-bottom: 1px solid var(--line-2);
}
.rc-fit li:last-child, .rc-how li:last-child { border-bottom: none; padding-bottom: 0; }
.rc-fit li::before, .rc-how li::before {
  content: "·";
  position: absolute;
  left: 4px;
  top: 12px;
  color: var(--brand);
  font-weight: 700;
  font-size: 1.2rem;
  line-height: 1;
}
.rc-fit li a, .rc-how li a { color: var(--ink); font-weight: 700; text-decoration: none; border-bottom: 1.5px solid var(--brand); }
.rc-fit li a:hover, .rc-how li a:hover { color: var(--brand); }
.rc-how li b { color: var(--ink); font-weight: 700; }

/* ----- 钩子（高亮黄底，整行） ----- */
.rc-hook {
  width: min(760px, calc(100% - 32px));
  margin: 56px auto 0;
  padding: 24px 32px;
  background: var(--highlight);
  border-radius: 10px;
  font-family: Arial, "Microsoft YaHei", "微软雅黑", sans-serif;
  font-size: 1.15rem;
  color: var(--ink);
  font-weight: 700;
  text-align: center;
  line-height: 1.5;
}

/* ----- CTA 区 ----- */
.rc-buy {
  width: min(760px, calc(100% - 32px));
  margin: 48px auto 0;
  padding: 48px 32px;
  border-top: 1px solid var(--line);
  text-align: center;
}
.rc-buy .section-tag {
  font-family: Arial, "Microsoft YaHei", "微软雅黑", sans-serif;
  color: var(--brand);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.rc-buy h2 {
  margin: 0 0 16px;
  font-size: 1.6rem;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.3;
}
.rc-buy .contact-detail {
  margin: 0 auto 24px;
  max-width: 580px;
  font-size: 0.95rem;
  color: var(--ink-2);
  line-height: 1.85;
}
.rc-buy .contact-detail b { color: var(--ink); font-weight: 700; }
.rc-buy .primary-button {
  display: inline-block;
  padding: 14px 36px;
  background: var(--brand);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 8px;
  text-decoration: none;
  transition: opacity .15s;
}
.rc-buy .primary-button:hover { opacity: 0.9; }

/* ----- 响应式 ----- */
@media (max-width: 700px) {
  .rc-hero { padding: 40px 0 8px; }
  .rc-hero h1 { font-size: 1.5rem; }
  .rc-fithow { grid-template-columns: 1fr; gap: 28px; }
  .rc-modules { grid-template-columns: 1fr; gap: 12px; }
  .rc-module { padding: 22px 22px; }
  .rc-modules-band { padding: 44px 0; }
  .rc-buy { padding: 36px 24px; }
  .rc-buy h2 { font-size: 1.3rem; }
  .rc-value { padding: 22px 22px; }
  .rc-value h2 { font-size: 1.15rem; }
  .rc-hook { font-size: 1rem; padding: 22px 22px; }
}