.ftlc-hsk2-post {
  --bg: #f7f4ef;
  --card: #ffffff;
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #eadfce;
  --shadow: 0 16px 40px rgba(0,0,0,.08);
  --radius: 24px;

  --primary: #e96f3f;
  --primary-soft: #fff1ea;
  --primary-line: #ffd4c2;

  --accent: #6d5dfc;
  --accent-soft: #f1efff;
  --accent-line: #ddd7ff;

  --green: #2f9e74;
  --green-soft: #ecfbf5;
  --green-line: #c8f0df;

  --gold: #a87400;
  --gold-soft: #fff8df;
  --gold-line: #f4e3a1;

  --red: #c8563d;
  --red-soft: #fff0ec;
  --red-line: #ffd3c8;

  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  margin: 28px 0;
}

.ftlc-hsk2-post *,
.ftlc-hsk2-post *::before,
.ftlc-hsk2-post *::after { box-sizing: border-box; }

.ftlc-hsk2-post button { font: inherit; }

.ftlc-hsk2-post .wrap {
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  padding: 0 2px;
}

.ftlc-hsk2-post .hero {
  background: linear-gradient(135deg, #fff7f1 0%, #f7f1ff 100%);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 26px 24px 22px;
  margin-bottom: 20px;
}

.ftlc-hsk2-post .eyebrow {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  border: 1px solid var(--primary-line);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
}

.ftlc-hsk2-post .title {
  margin: 0 0 10px;
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1.18;
  font-weight: 800;
  color: var(--ink);
}

.ftlc-hsk2-post .lead {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.75;
}

.ftlc-hsk2-post .topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  margin: 18px 0 16px;
}

.ftlc-hsk2-post .progressBox {
  flex: 1 1 320px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 14px 16px;
  box-shadow: var(--shadow);
  min-width: 0;
}

.ftlc-hsk2-post .progressLabel {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 10px;
}

.ftlc-hsk2-post .progressTrack {
  width: 100%;
  height: 12px;
  background: #f1ece4;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid #eadfce;
}

.ftlc-hsk2-post .progressFill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), #ffb07f);
  border-radius: 999px;
  transition: width .28s ease;
}

.ftlc-hsk2-post .counter {
  flex: 0 0 auto;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent-line);
  border-radius: 18px;
  padding: 14px 16px;
  font-weight: 800;
  min-width: 130px;
  text-align: center;
  box-shadow: var(--shadow);
}

.ftlc-hsk2-post .card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 30px;
  box-shadow: var(--shadow);
  padding: 24px;
}

.ftlc-hsk2-post .sectionTag {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent-line);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 20px;
}

.ftlc-hsk2-post .sentencesWrapper {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.ftlc-hsk2-post .sentenceBlock {
  background: #faf8f4;
  border: 1px dashed #e5d8c3;
  border-radius: 20px;
  padding: 20px;
  position: relative;
}

.ftlc-hsk2-post .sentenceBlock.is-main {
  background: #fff;
  border: 2px solid var(--accent-line);
  box-shadow: 0 8px 24px rgba(109, 93, 252, 0.06);
}

.ftlc-hsk2-post .sentenceBlock.is-main::before {
  content: "Main Sentence";
  position: absolute;
  top: -12px;
  left: 20px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  padding: 2px 10px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.ftlc-hsk2-post .cnRow {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 8px;
}

.ftlc-hsk2-post .cnText {
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.6;
  font-weight: 800;
  color: var(--ink);
  word-break: break-word;
}

.ftlc-hsk2-post .is-main .cnText {
  font-size: clamp(24px, 3.5vw, 34px);
}

.ftlc-hsk2-post .audioBtn {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary-soft);
  border: 1px solid var(--primary-line);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
  margin-top: 4px;
}

.ftlc-hsk2-post .audioBtn:hover {
  transform: scale(1.08);
  background: var(--primary);
  color: #fff;
}

.ftlc-hsk2-post .pyText {
  font-size: clamp(15px, 2vw, 18px);
  color: #475569;
  line-height: 1.6;
  margin-bottom: 6px;
}

.ftlc-hsk2-post .enText {
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.6;
}

.ftlc-hsk2-post [class^="hl-"] {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 6px;
  margin: 0 2px;
  line-height: 1.2;
}

.ftlc-hsk2-post .pyText [class^="hl-"] {
  padding: 1px 4px;
  border-radius: 4px;
}

.ftlc-hsk2-post .hl-verb { background: var(--primary-soft); color: var(--primary); }
.ftlc-hsk2-post .hl-noun { background: var(--accent-soft); color: var(--accent); }
.ftlc-hsk2-post .hl-title { background: var(--green-soft); color: var(--green); }
.ftlc-hsk2-post .hl-grammar { background: var(--gold-soft); color: var(--gold); }
.ftlc-hsk2-post .hl-warning { background: var(--red-soft); color: var(--red); }

.ftlc-hsk2-post .panel {
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 24px;
  background: #fffdf9;
  min-width: 0;
  width: 100%;
  margin-bottom: 16px;
}

.ftlc-hsk2-post .panelTitle {
  margin: 0 0 16px;
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
  border-bottom: 2px solid var(--line);
  padding-bottom: 10px;
}

.ftlc-hsk2-post .panelText {
  color: #475569;
  line-height: 1.6;
  font-size: 14.5px;
}

.ftlc-hsk2-post .vocabCategory { margin-bottom: 20px; }
.ftlc-hsk2-post .vocabCategory:last-child { margin-bottom: 0; }

.ftlc-hsk2-post .vocabTitle {
  font-size: 14px;
  font-weight: 700;
  color: #64748b;
  margin-bottom: 10px;
}

.ftlc-hsk2-post .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.ftlc-hsk2-post .chip {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 14px;
  max-width: 100%;
  box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}

.ftlc-hsk2-post .chipCn {
  font-size: 18px;
  font-weight: 800;
  line-height: 1.1;
  flex: 0 0 auto;
}

.ftlc-hsk2-post .chipMeta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.2;
  min-width: 0;
}

.ftlc-hsk2-post .chipPy { font-size: 12px; color: #64748b; font-weight: 700; }
.ftlc-hsk2-post .chipEn { font-size: 12px; color: var(--muted); font-weight: 600; }

.ftlc-hsk2-post .writeList {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.ftlc-hsk2-post .writeWord {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 12px 18px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.02);
}

.ftlc-hsk2-post .writeChars {
  display: flex;
  gap: 6px;
  margin: 8px 0;
}

.ftlc-hsk2-post .charBox {
  width: 52px;
  height: 52px;
  border: 1px dashed #e5d8c3;
  background: #fdfaf4;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
  color: var(--ink);
  position: relative;
}

.ftlc-hsk2-post .charBox::before,
.ftlc-hsk2-post .charBox::after {
  content: "";
  position: absolute;
  background: #f0e6d3;
  z-index: 0;
}

.ftlc-hsk2-post .charBox::before {
  width: 100%;
  height: 1px;
  top: 50%;
  left: 0;
}

.ftlc-hsk2-post .charBox::after {
  width: 1px;
  height: 100%;
  top: 0;
  left: 50%;
}

.ftlc-hsk2-post .charBox span {
  position: relative;
  z-index: 1;
  line-height: 1;
}

.ftlc-hsk2-post .writePy { font-size: 13.5px; color: #64748b; font-weight: 700; }
.ftlc-hsk2-post .writeEn { font-size: 12.5px; color: var(--muted); }

.ftlc-hsk2-post .ctaPanel {
  background: linear-gradient(135deg, var(--accent-soft) 0%, #ffffff 100%);
  border: 2px solid var(--accent-line);
  text-align: center;
  padding: 30px 24px;
  margin-top: 10px;
}

.ftlc-hsk2-post .ctaTitle {
  font-size: 20px;
  font-weight: 800;
  color: var(--accent);
  margin: 0 0 10px 0;
  line-height: 1.4;
}

.ftlc-hsk2-post .ctaText {
  font-size: 15px;
  color: #475569;
  margin: 0 0 20px 0;
  line-height: 1.7;
}

.ftlc-hsk2-post .ctaText strong {
  color: var(--ink);
}

.ftlc-hsk2-post .ctaBtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--accent);
  color: #fff;
  padding: 14px 28px;
  border-radius: 16px;
  font-weight: 800;
  font-size: 16px;
  text-decoration: none;
  box-shadow: 0 8px 20px rgba(109, 93, 252, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.ftlc-hsk2-post .ctaBtn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 24px rgba(109, 93, 252, 0.35);
}

.ftlc-hsk2-post .controls {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
  margin-top: 24px;
  flex-wrap: wrap;
}

.ftlc-hsk2-post .btnGroup {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.ftlc-hsk2-post .navBtn {
  border: none;
  cursor: pointer;
  font-weight: 800;
  border-radius: 16px;
  padding: 14px 22px;
  transition: transform .18s ease, box-shadow .18s ease, opacity .18s ease;
}

.ftlc-hsk2-post .navBtn:hover { transform: translateY(-2px); }
.ftlc-hsk2-post .navBtn:active { transform: translateY(0); }

.ftlc-hsk2-post .btnPrev {
  background: #fff;
  color: #374151;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.ftlc-hsk2-post .btnNext {
  background: linear-gradient(135deg, var(--primary), #ff9d6d);
  color: #fff;
  box-shadow: 0 8px 20px rgba(233, 111, 63, .25);
}

.ftlc-hsk2-post .btnRestart {
  background: linear-gradient(135deg, var(--accent), #8a7cff);
  color: #fff;
  box-shadow: 0 8px 20px rgba(109, 93, 252, .25);
}

.ftlc-hsk2-post .btnDisabled {
  opacity: .45;
  cursor: not-allowed;
  transform: none !important;
}

.ftlc-hsk2-post .footerNote {
  margin-top: 18px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.7;
  text-align: center;
}

@media (max-width: 640px) {
  .ftlc-hsk2-post .btnGroup,
  .ftlc-hsk2-post .navBtn,
  .ftlc-hsk2-post .btnRestart {
    width: 100%;
  }

  .ftlc-hsk2-post .btnGroup {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .ftlc-hsk2-post .ctaBtn { width: 100%; }
}