/* =========================================================
   Clash之家 · tutorial.css
   使用指南页(start.html)专属样式:
   四步"通勤线"——一条信号橙干线纵贯全部步骤,
   每步一个墨黑节点 + 橙色 STEP 站牌
   ========================================================= */

/* ---------- 页首 ---------- */
.guide-hero {
  padding-top: clamp(40px, 6vw, 80px);
  padding-bottom: clamp(24px, 4vw, 44px);
}

.guide-lead {
  max-width: 68ch;
  font-size: clamp(15.5px, 1.4vw, 17px);
  color: var(--text);
  margin-bottom: 1.6em;
}

.guide-hero .toc-strip {
  margin-top: clamp(20px, 3vw, 32px);
}

/* ---------- 步骤干线 ---------- */
.guide-line {
  position: relative;
  margin-top: clamp(28px, 5vw, 56px);
}

.guide-line::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 11px;
  width: var(--rail-w);
  background: var(--signal);
}

/* ---------- 单个步骤(站点) ---------- */
.guide-step {
  position: relative;
  padding-left: clamp(46px, 8vw, 76px);
  padding-bottom: clamp(48px, 7vw, 88px);
}

.guide-step:last-child {
  padding-bottom: clamp(24px, 4vw, 40px);
}

.guide-step::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 8px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--ink);
  border: 4px solid var(--paper);
  box-shadow: 0 0 0 2px var(--ink);
}

/* 橙底站牌:STEP 编号 */
.step-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 3px 12px;
  background: var(--signal);
  color: var(--panel);
  border: 2px solid var(--ink);
  margin-bottom: 14px;
}

.guide-step h2 {
  margin-bottom: 14px;
}

.step-body {
  max-width: 70ch;
}

.step-body p {
  font-size: 15.5px;
}

.guide-step .station-xfer {
  margin-top: 6px;
}

/* ---------- 换乘指引三联卡 ---------- */
.guide-end .panel h3 {
  margin-bottom: 8px;
}

.guide-end .panel p {
  font-size: 14.5px;
  margin-bottom: 14px;
}

/* ---------- 窄屏收紧 ---------- */
@media (max-width: 480px) {
  .guide-line::before { left: 9px; }
  .guide-step::before { left: 1px; }
  .guide-step { padding-left: 44px; }
}