/* ==========================================================================
   文章页样式（quote-check.html 等长文共用）
   --------------------------------------------------------------------------
   阅读优先：正文 720px 宽、行高 1.9、段落间距充足。
   ========================================================================== */

/* ---------- 首屏 ---------- */
.art-hero {
  padding: 140px 0 72px;
  background: linear-gradient(180deg, #FFFFFF 0%, #F5F5F7 100%);
  border-bottom: 1px solid var(--line);
}
.art-back {
  display: inline-block; font-size: 13px; color: var(--muted);
  text-decoration: none; margin-bottom: 28px;
  transition: color .18s var(--ease);
}
.art-back:hover { color: var(--accent); }
.art-hero__meta {
  display: flex; flex-wrap: wrap; gap: 18px;
  font-size: 12.5px; letter-spacing: .04em; color: var(--muted);
  margin-bottom: 20px;
}
.art-hero__meta span { position: relative; }
.art-hero__meta span + span::before {
  content: "·"; position: absolute; left: -11px; color: var(--line);
}
.art-hero__title {
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.24; letter-spacing: -.04em;
  font-weight: 650; color: var(--ink); margin: 0 0 24px;
  max-width: 20em;
}
.art-hero__sub {
  font-size: clamp(15px, 1.6vw, 18px); line-height: 1.85;
  color: var(--ink-2); margin: 0; max-width: 34em;
}

/* ---------- 正文 ---------- */
.art-sec { padding: 72px 0 96px; }
.art-body { max-width: 760px; }

.art-lead {
  padding: 28px 32px; margin-bottom: 56px;
  background: #fff; border: 1px solid var(--line);
  border-left: 3px solid var(--accent); border-radius: 12px;
}
.art-lead p { margin: 0 0 12px; font-size: 15.5px; line-height: 1.85; color: var(--ink-2); }
.art-lead p:last-child { margin-bottom: 0; }
.art-lead strong { color: var(--ink); }

/* ---------- 每个坑 ---------- */
.pit {
  margin-bottom: 56px; padding-bottom: 48px;
  border-bottom: 1px solid var(--line);
}
.pit:last-of-type { border-bottom: 0; }
.pit__head {
  display: flex; align-items: baseline; gap: 16px; margin-bottom: 26px;
}
.pit__no {
  flex: none; font-size: 13px; font-weight: 600; letter-spacing: .1em;
  color: var(--accent); padding-top: 4px;
}
.pit__t {
  font-size: clamp(20px, 2.4vw, 26px); line-height: 1.4;
  letter-spacing: -.02em; color: var(--ink); margin: 0;
}
.pit__rows { display: grid; gap: 18px; }
.pit__row { display: grid; grid-template-columns: 88px 1fr; gap: 18px; align-items: start; }
.pit__label {
  font-size: 12px; letter-spacing: .06em; font-weight: 600;
  padding: 3px 0; white-space: nowrap;
}
.pit__label--bad { color: #B4541F; }
.pit__label--good { color: var(--accent); }
.pit__row p {
  margin: 0; font-size: 15.5px; line-height: 1.9; color: var(--ink-2);
}
.pit__row p b { color: var(--ink); font-weight: 600; }

/* ---------- 自查清单 ---------- */
.art-checklist {
  margin: 72px 0 0; padding: 40px;
  background: var(--dark, #1D1D1F); color: #F5F5F7;
  border-radius: var(--radius-lg);
}
.art-checklist h2 {
  font-size: 26px; letter-spacing: -.02em; margin: 0 0 8px; color: #fff;
}
.art-checklist__sub { margin: 0 0 28px; font-size: 14px; color: #A1A1A6; }
.art-checklist ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.art-checklist li label {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 15px; line-height: 1.7; color: #D8D8DC;
  cursor: pointer; user-select: none;
}
.art-checklist input[type="checkbox"] {
  appearance: none; flex: none; width: 19px; height: 19px; margin-top: 2px;
  border: 1.5px solid #6E6E73; border-radius: 5px; background: transparent;
  cursor: pointer; position: relative; transition: all .16s var(--ease);
}
.art-checklist input[type="checkbox"]:checked {
  background: var(--accent); border-color: var(--accent);
}
.art-checklist input[type="checkbox"]:checked::after {
  content: ""; position: absolute; left: 5px; top: 2px;
  width: 5px; height: 9px; border: solid #fff;
  border-width: 0 2px 2px 0; transform: rotate(42deg);
}
.art-checklist input[type="checkbox"]:checked + span {
  color: #6E6E73; text-decoration: line-through;
}
.art-checklist__count {
  margin: 26px 0 0; font-size: 13px; color: #86868B;
  padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1);
}
.art-checklist__count span { color: #4B9BE8; font-weight: 650; font-size: 17px; }

/* ---------- 结尾 ---------- */
.art-end {
  margin-top: 72px; padding-top: 48px; border-top: 1px solid var(--line);
  text-align: center;
}
.art-end h2 {
  font-size: clamp(22px, 2.8vw, 30px); letter-spacing: -.03em;
  color: var(--ink); margin: 0 0 16px;
}
.art-end p {
  font-size: 16px; line-height: 1.85; color: var(--muted);
  max-width: 38em; margin: 0 auto 32px;
}
.art-end__links {
  display: flex; flex-wrap: wrap; gap: 14px; justify-content: center;
}

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .art-hero { padding: 112px 0 56px; }
  .art-sec { padding: 48px 0 72px; }
  .art-lead { padding: 22px; }
  .pit__row { grid-template-columns: 1fr; gap: 8px; }
  .pit__label { padding-top: 0; }
  .art-checklist { padding: 28px 22px; margin-top: 56px; }
  .art-checklist h2 { font-size: 22px; }
  .art-end { margin-top: 56px; }
}