/* =====================================================
   成熟 — 视觉风格
   关键词：克制 · 留白 · 思辨 · 温润
   ===================================================== */

:root {
  --bg: #f5f1ea;            /* 主背景：暖米白 */
  --bg-alt: #ebe5d9;         /* 章节交替背景：稍深一点的米色 */
  --bg-soft: #faf7f2;        /* 更浅的米色 */
  --text: #2c2925;           /* 主文字：暖黑 */
  --text-soft: #5a5045;      /* 次级文字：暖灰（加深以保证可读） */
  --text-mute: #6e6358;      /* 更弱的文字（明显加深） */
  --accent: #7a5d36;         /* 强调色：深暖铜（加深以保证可读） */
  --accent-soft: #9a7a52;    /* 柔和铜色 */
  --accent-soft: #b8956a;    /* 柔和铜色 */
  --line: #d4ccbe;           /* 边框线 */
  --line-soft: #e8e1d3;      /* 弱边框 */
  --water: #a8c4d8;          /* 水色（情绪隐喻） */
  --good: #4a634a;           /* 深温和绿 */
  --bad: #8e5447;            /* 深温和红棕 */
  --bg-dark: #2a2520;        /* 深色背景：黑中带暖 */
  --bg-dark-soft: #3a322c;   /* 稍亮一点的深色 */
  --text-on-dark: #f5f1ea;   /* 深底上的暖白文字 */
  --text-on-dark-soft: #b8a896; /* 深底上的灰白文字 */
  --accent-on-dark: #d4a574; /* 深底上的金色点缀 */
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-weight: 300;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: 0.02em;
}

/* =====================================================
   通用容器与排版
   ===================================================== */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 60px;
}

.container.narrow {
  max-width: 820px;
}

.section {
  padding: 160px 0;
  position: relative;
}

.section-alt {
  background: var(--bg-alt);
}

.section-number {
  font-family: "Cormorant Garamond", "Noto Serif SC", serif;
  font-size: 14px;
  font-style: italic;
  color: var(--text-mute);
  letter-spacing: 0.3em;
  margin-bottom: 32px;
  text-transform: uppercase;
}

.section-title {
  font-family: "Noto Serif SC", "Cormorant Garamond", serif;
  font-weight: 400;
  font-size: 38px;
  line-height: 1.5;
  color: var(--text);
  margin-bottom: 80px;
  letter-spacing: 0.04em;
}

.section-title .highlight-word {
  font-weight: 500;
  color: var(--accent);
}

.section-footer {
  margin-top: 80px;
  text-align: center;
  font-size: 16px;
  color: var(--text-soft);
  font-family: "Noto Serif SC", serif;
  font-weight: 300;
  letter-spacing: 0.06em;
}

.lead {
  font-size: 17px;
  color: var(--text-soft);
  margin: 50px 0 30px;
  font-weight: 300;
}

.lead em {
  font-style: normal;
  color: var(--text);
  font-weight: 500;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 1px;
}

.col-heading {
  font-family: "Noto Serif SC", serif;
  font-size: 16px;
  color: var(--text-mute);
  font-weight: 400;
  letter-spacing: 0.3em;
  margin-bottom: 28px;
  text-transform: uppercase;
}

/* =====================================================
   1. 封面
   ===================================================== */

.cover {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--bg);
  position: relative;
}

.cover .container {
  padding: 0 40px;
}

.cover-label {
  font-size: 13px;
  color: var(--text-mute);
  letter-spacing: 0.4em;
  margin-bottom: 60px;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
}

.cover-title {
  font-family: "Noto Serif SC", "Cormorant Garamond", serif;
  font-size: 96px;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--text);
  margin-bottom: 32px;
}

.cover-subtitle {
  font-family: "Noto Serif SC", serif;
  font-size: 22px;
  font-weight: 300;
  color: var(--text-soft);
  letter-spacing: 0.15em;
  margin-bottom: 60px;
}

.cover-divider {
  width: 60px;
  height: 1px;
  background: var(--accent);
  margin: 0 auto 60px;
}

.cover-tagline {
  font-family: "Noto Serif SC", serif;
  font-size: 17px;
  color: var(--text-soft);
  line-height: 2;
  letter-spacing: 0.08em;
  font-weight: 300;
}

.scroll-hint {
  margin-top: 100px;
  font-size: 12px;
  color: var(--text-mute);
  letter-spacing: 0.3em;
  font-family: "Cormorant Garamond", serif;
  animation: gentle-bounce 3s ease-in-out infinite;
}

@keyframes gentle-bounce {
  0%, 100% { transform: translateY(0); opacity: 0.6; }
  50% { transform: translateY(8px); opacity: 1; }
}

/* =====================================================
   两栏对比
   ===================================================== */

.two-col {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  margin-bottom: 80px;
}

.minus-list {
  list-style: none;
}

.minus-list li {
  position: relative;
  padding: 12px 0 12px 28px;
  font-size: 16px;
  color: var(--text-soft);
  font-weight: 300;
}

.minus-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  width: 12px;
  height: 1px;
  background: var(--text-mute);
}

.big-quote {
  font-family: "Noto Serif SC", serif;
  font-size: 18px;
  line-height: 2.1;
  color: var(--text);
  font-weight: 300;
  letter-spacing: 0.04em;
}

.big-quote em {
  font-style: normal;
  color: var(--accent);
  font-weight: 500;
}

.key-equation {
  text-align: center;
  padding: 50px 40px;
  background: rgba(139, 111, 71, 0.06);
  border-top: 1px solid var(--accent);
  border-bottom: 1px solid var(--accent);
}

.eq-text {
  font-family: "Noto Serif SC", serif;
  font-size: 26px;
  color: var(--text);
  font-weight: 500;
  letter-spacing: 0.1em;
}

/* =====================================================
   三栏卡片
   ===================================================== */

.three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 80px;
}

.card {
  background: var(--bg);
  padding: 50px 36px;
  border: 1px solid var(--line-soft);
  position: relative;
  transition: all 0.4s ease;
}

.card:hover {
  border-color: var(--accent-soft);
  transform: translateY(-2px);
}

.card-num {
  font-family: "Cormorant Garamond", serif;
  font-size: 36px;
  font-style: italic;
  color: var(--accent);
  font-weight: 300;
  margin-bottom: 24px;
}

.card-title {
  font-family: "Noto Serif SC", serif;
  font-size: 20px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: 0.06em;
}

.card-body {
  font-size: 15px;
  color: var(--text-soft);
  line-height: 1.9;
  font-weight: 300;
}

/* =====================================================
   对话气泡（亲密关系段）
   ===================================================== */

.conversation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin: 60px 0;
}

.bubble {
  padding: 36px 30px;
  background: var(--bg-soft);
  border-left: 2px solid var(--line);
}

.bubble.partner {
  border-left-color: var(--accent);
}

.bubble-label {
  font-size: 12px;
  color: var(--text-mute);
  letter-spacing: 0.25em;
  margin-bottom: 14px;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
}

.bubble-text {
  font-family: "Noto Serif SC", serif;
  font-size: 17px;
  color: var(--text);
  font-weight: 400;
}

.dot-list {
  list-style: none;
  margin: 30px 0 60px;
}

.dot-list.center {
  text-align: center;
}

.dot-list li {
  position: relative;
  padding: 10px 0 10px 24px;
  font-size: 16px;
  color: var(--text-soft);
  font-weight: 300;
}

.dot-list.center li {
  display: inline-block;
  padding: 6px 24px;
  margin: 4px;
}

.dot-list li::before {
  content: "·";
  position: absolute;
  left: 4px;
  top: 8px;
  font-size: 22px;
  color: var(--accent);
}

.dot-list.center li::before {
  display: none;
}

/* =====================================================
   关键金句
   ===================================================== */

.key-quote {
  margin-top: 80px;
  padding: 60px 50px;
  text-align: center;
  font-family: "Noto Serif SC", serif;
  font-size: 24px;
  font-weight: 400;
  color: var(--text);
  line-height: 2;
  letter-spacing: 0.08em;
  background: rgba(139, 111, 71, 0.06);
  border-left: 4px solid var(--accent);
  border-right: 1px solid var(--line-soft);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  position: relative;
}

/* 金句左侧的装饰号 */
.key-quote::before {
  content: "“";
  position: absolute;
  top: -10px;
  left: 24px;
  font-family: "Noto Serif SC", serif;
  font-size: 64px;
  color: var(--accent);
  line-height: 1;
  opacity: 0.35;
  font-weight: 300;
}

.key-quote.strong {
  background: var(--bg-dark);
  border: none;
  font-size: 30px;
  font-weight: 400;
  color: var(--text-on-dark);
  padding: 80px 50px;
  letter-spacing: 0.12em;
  box-shadow: 0 20px 50px -20px rgba(42, 37, 32, 0.4);
}

.key-quote.strong::before {
  color: var(--accent-on-dark);
  opacity: 0.6;
  top: 14px;
}

.key-quote.strong em,
.key-quote.strong strong {
  color: var(--accent-on-dark);
  font-weight: 500;
  font-style: normal;
}

.key-quote .sub {
  display: block;
  margin-top: 16px;
  font-size: 16px;
  color: var(--text-mute);
  font-weight: 300;
}

/* =====================================================
   5. 情绪回路
   ===================================================== */

.loop-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 60px 0 80px;
}

.emotion-loop {
  width: 100%;
  max-width: 600px;
  height: auto;
}

.loop-text {
  font-family: "Noto Sans SC", sans-serif;
  font-size: 11px;
  fill: var(--text);
  font-weight: 400;
  letter-spacing: 0.05em;
}

.loop-center {
  font-family: "Noto Serif SC", serif;
  font-size: 13px;
  fill: var(--accent);
  font-weight: 500;
  letter-spacing: 0.08em;
}

.loop-arrow {
  stroke-dasharray: 800;
  stroke-dashoffset: 800;
  transition: stroke-dashoffset 2s ease;
}

.loop-arrow.drawn {
  stroke-dashoffset: 0;
}

.loop-caption {
  margin-top: 30px;
  font-size: 13px;
  color: var(--text-mute);
  letter-spacing: 0.2em;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
}

/* =====================================================
   6. 三个层次混淆
   ===================================================== */

.layers {
  margin: 60px 0;
}

.layer {
  padding: 30px 36px;
  background: var(--bg-soft);
  border-left: 3px solid var(--line);
  margin-bottom: 16px;
  display: flex;
  align-items: baseline;
  gap: 24px;
}

.layer:nth-child(2) {
  border-left-color: var(--accent-soft);
}

.layer:nth-child(3) {
  border-left-color: var(--accent);
}

.layer-tag {
  font-family: "Noto Serif SC", serif;
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.2em;
  flex-shrink: 0;
  min-width: 100px;
}

.layer-text {
  font-size: 16px;
  color: var(--text);
  font-weight: 300;
  line-height: 1.8;
}

.vs-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin: 60px 0;
}

.vs-side {
  padding: 36px 30px;
  background: var(--bg-soft);
}

.vs-side.wrong {
  border-top: 2px solid var(--bad);
}

.vs-side.right {
  border-top: 2px solid var(--good);
}

.vs-label {
  font-size: 12px;
  color: var(--text-mute);
  letter-spacing: 0.3em;
  margin-bottom: 24px;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
}

.vs-side.wrong .vs-label {
  color: var(--bad);
}

.vs-side.right .vs-label {
  color: var(--good);
}

.arrow-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  color: var(--text);
  font-weight: 300;
}

.arrow-flow span {
  white-space: nowrap;
}

.arrow-flow .ar {
  color: var(--accent);
  font-size: 14px;
}

.arrow-flow.simple {
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.arrow-flow.simple p {
  font-size: 16px;
  color: var(--text);
}

.arrow-flow.simple .em {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  color: var(--accent);
  font-family: "Noto Serif SC", serif;
  font-weight: 500;
}

/* =====================================================
   7. 冷处理 / 对话示例
   ===================================================== */

.wrong-things {
  margin: 40px 0;
}

.wrong-things p {
  font-size: 15px;
  color: var(--text-mute);
  margin: 10px 0;
}

.quote-line {
  font-family: "Noto Serif SC", serif;
  font-size: 18px;
  color: var(--text);
  font-weight: 400;
  letter-spacing: 0.05em;
  margin: 16px 0 24px;
  padding-left: 20px;
  border-left: 2px solid var(--line);
}

.dialogue-example {
  margin-top: 60px;
  padding: 40px;
  background: var(--bg-soft);
  border: 1px solid var(--line-soft);
}

.d-speaker {
  font-size: 12px;
  color: var(--text-mute);
  letter-spacing: 0.3em;
  margin-top: 16px;
  margin-bottom: 6px;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
}

.d-speaker.bad { color: var(--bad); }
.d-speaker.good { color: var(--good); }

.d-line {
  font-family: "Noto Serif SC", serif;
  font-size: 16px;
  color: var(--text);
  font-weight: 300;
  line-height: 1.9;
  margin-bottom: 12px;
}

.d-line.bad { color: var(--bad); opacity: 0.85; }
.d-line.good { color: var(--good); }

.note {
  margin-top: 24px;
  font-size: 13px;
  color: var(--text-mute);
  font-style: italic;
  text-align: center;
  letter-spacing: 0.05em;
}

/* =====================================================
   8. 水面隐喻
   ===================================================== */

.water-metaphor {
  margin: 60px auto;
  max-width: 760px;
}

.water-metaphor svg {
  width: 100%;
  height: auto;
}

.meta-label {
  font-family: "Noto Sans SC", sans-serif;
  font-size: 12px;
  fill: var(--text-soft);
  letter-spacing: 0.1em;
}

/* =====================================================
   9. 反应时间线
   ===================================================== */

.scenario {
  margin: 40px 0;
  padding: 36px;
  background: var(--bg-soft);
  border-left: 2px solid var(--accent);
}

.scenario-label {
  font-size: 13px;
  color: var(--text-mute);
  letter-spacing: 0.2em;
  margin: 10px 0;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
}

.scenario-line {
  font-family: "Noto Serif SC", serif;
  font-size: 18px;
  color: var(--text);
  font-weight: 400;
  margin: 10px 0 24px;
}

.center-big {
  text-align: center;
  font-size: 20px;
  margin: 30px auto 50px;
}

.scenario-foot {
  font-size: 14px;
  color: var(--text-soft);
  font-style: italic;
  margin-top: 20px;
}

.reveal-quote-list {
  list-style: none;
  margin: 16px 0 16px 20px;
}

.reveal-quote-list li {
  padding: 4px 0;
  font-size: 16px;
  color: var(--text);
  font-weight: 300;
  position: relative;
  padding-left: 16px;
}

.reveal-quote-list li::before {
  content: "—";
  position: absolute;
  left: -4px;
  color: var(--accent);
}

.reaction-timeline {
  margin: 60px auto;
  max-width: 480px;
}

.rt-step {
  padding: 24px 30px;
  background: var(--bg-soft);
  border-left: 2px solid var(--line);
  margin: 8px 0;
}

.rt-step.highlight {
  background: var(--bg);
  border-left: 3px solid var(--accent);
  transform: translateX(8px);
}

.rt-step.pause {
  text-align: center;
  background: transparent;
  border-left: none;
  color: var(--text-mute);
  font-size: 22px;
  letter-spacing: 0.5em;
}

.rt-tag {
  display: inline-block;
  font-size: 11px;
  color: var(--text-mute);
  letter-spacing: 0.3em;
  margin-bottom: 8px;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
}

.rt-step.highlight .rt-tag {
  color: var(--accent);
}

.rt-step p {
  font-family: "Noto Serif SC", serif;
  font-size: 16px;
  color: var(--text);
  font-weight: 400;
}

.rt-arrow {
  text-align: center;
  color: var(--text-mute);
  font-size: 14px;
  margin: 4px 0;
}

/* =====================================================
   10. 四步法
   ===================================================== */

.four-step {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 60px 0 80px;
}

.step {
  padding: 40px 28px;
  background: var(--bg);
  border: 1px solid var(--line-soft);
  position: relative;
  transition: all 0.4s ease;
}

.step:hover {
  border-color: var(--accent-soft);
}

.step-num {
  font-family: "Cormorant Garamond", serif;
  font-size: 48px;
  font-style: italic;
  color: var(--accent);
  font-weight: 300;
  line-height: 1;
  margin-bottom: 20px;
}

.step-title {
  font-family: "Noto Serif SC", serif;
  font-size: 22px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: 0.15em;
}

.step-body {
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.9;
  font-weight: 300;
}

/* =====================================================
   11. 真实场景对比
   ===================================================== */

.two-col-compare {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 30px;
  margin: 60px 0;
}

.compare-col {
  padding: 40px 32px;
  background: var(--bg-soft);
  border-top: 2px solid var(--line);
}

.compare-col.auto {
  border-top-color: var(--bad);
}

.compare-col.mature {
  border-top-color: var(--good);
}

.compare-tag {
  font-family: "Noto Serif SC", serif;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.3em;
  margin-bottom: 28px;
}

.compare-tag.auto {
  color: var(--bad);
}

.compare-tag.mature {
  color: var(--good);
}

.compare-steps {
  list-style: none;
  counter-reset: cmp;
  margin-bottom: 24px;
}

.compare-steps li {
  counter-increment: cmp;
  padding: 10px 0 10px 36px;
  position: relative;
  font-size: 15px;
  color: var(--text);
  font-weight: 300;
  line-height: 1.8;
  border-bottom: 1px solid var(--line-soft);
}

.compare-steps li:last-child {
  border-bottom: none;
}

.compare-steps li::before {
  content: counter(cmp);
  position: absolute;
  left: 0;
  top: 12px;
  width: 22px;
  height: 22px;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
}

.compare-col.auto .compare-steps li::before {
  color: var(--bad);
}

.compare-col.mature .compare-steps li::before {
  color: var(--good);
}

.compare-result {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
  font-family: "Noto Serif SC", serif;
  font-size: 14px;
  color: var(--text-soft);
  font-style: italic;
  letter-spacing: 0.05em;
}

/* =====================================================
   12. 边界 / 引述
   ===================================================== */

.speech-box {
  margin: 40px 0;
  padding: 40px;
  background: var(--bg-soft);
  border-left: 3px solid var(--accent);
  font-family: "Noto Serif SC", serif;
  font-size: 17px;
  color: var(--text);
  line-height: 2;
  font-weight: 300;
  letter-spacing: 0.05em;
}

/* =====================================================
   13. 30 天训练
   ===================================================== */

.training {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 60px 0 80px;
}

.train-step {
  padding: 36px 30px;
  background: var(--bg);
  border: 1px solid var(--line-soft);
}

.train-num {
  font-family: "Cormorant Garamond", serif;
  font-size: 32px;
  font-style: italic;
  color: var(--accent);
  font-weight: 300;
  margin-bottom: 16px;
}

.train-title {
  font-family: "Noto Serif SC", serif;
  font-size: 18px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 14px;
  letter-spacing: 0.08em;
}

.train-hint {
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.9;
  font-weight: 300;
  font-style: italic;
}

/* =====================================================
   14. 四阶段时间线
   ===================================================== */

.stage-timeline {
  margin: 60px auto;
  max-width: 720px;
}

.stage {
  padding: 32px 40px;
  background: var(--bg-soft);
  border-left: 2px solid var(--line);
  margin: 6px 0;
  position: relative;
  transition: all 0.4s ease;
}

.stage:hover {
  border-left-color: var(--accent-soft);
}

.stage.final {
  background: var(--bg);
  border-left: 3px solid var(--accent);
  transform: translateX(12px);
}

.stage-quote {
  font-family: "Noto Serif SC", serif;
  font-size: 17px;
  color: var(--text);
  font-weight: 400;
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.stage.final .stage-quote {
  font-weight: 500;
  color: var(--accent);
}

.stage-label {
  font-size: 12px;
  color: var(--text-mute);
  letter-spacing: 0.3em;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
}

.stage-arrow {
  text-align: center;
  color: var(--text-mute);
  font-size: 16px;
  margin: 4px 0;
  letter-spacing: 0.5em;
}

/* =====================================================
   15. 结尾
   ===================================================== */

.closing {
  background: var(--bg-soft);
  padding: 180px 0 200px;
  text-align: center;
}

.closing .section-title {
  text-align: center;
  margin-bottom: 100px;
  color: var(--text);
}

.closing .section-number {
  color: var(--text-mute);
}

.closing .lead {
  color: var(--text-soft);
}

.closing .quote-line {
  color: var(--text);
  border-left-color: var(--accent);
}

.closing-quote {
  font-family: "Noto Serif SC", serif;
  font-size: 36px;
  font-weight: 300;
  line-height: 2;
  color: var(--text);
  letter-spacing: 0.12em;
  margin: 0 auto 80px;
  padding: 60px 40px;
  background: rgba(139, 111, 71, 0.06);
  border-top: 1px solid var(--accent);
  border-bottom: 1px solid var(--accent);
  max-width: 800px;
}

.closing-quote strong {
  font-weight: 500;
  color: var(--accent);
  font-size: 1.1em;
}

.closing-list {
  margin: 0 auto 80px;
  max-width: 700px;
}

.closing-list p {
  font-family: "Noto Serif SC", serif;
  font-size: 16px;
  color: var(--text-soft);
  line-height: 2.2;
  font-weight: 300;
  letter-spacing: 0.08em;
}

.closing-final {
  margin: 80px auto;
  max-width: 700px;
  padding: 60px 50px;
  font-family: "Noto Serif SC", serif;
  font-size: 22px;
  color: var(--text);
  line-height: 2.4;
  letter-spacing: 0.1em;
  background: rgba(139, 111, 71, 0.06);
  border-top: 2px solid var(--accent);
}

.closing-final .em {
  color: var(--accent);
  font-weight: 500;
}

.closing-final p {
  margin: 0;
  padding: 8px 0;
}

.ending-mark {
  margin-top: 100px;
  font-size: 14px;
  color: var(--text-mute);
  letter-spacing: 0.5em;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
}

/* =====================================================
   页脚
   ===================================================== */

.footer {
  text-align: center;
  padding: 40px 20px;
  background: var(--bg);
  font-size: 12px;
  color: var(--text-mute);
  letter-spacing: 0.3em;
}

/* =====================================================
   滚动出现动画
   ===================================================== */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1.2s ease, transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =====================================================
   标签系统：原因 / 处理方式
   ===================================================== */

.tag {
  display: inline-block;
  padding: 4px 14px;
  font-family: "Noto Serif SC", serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.25em;
  border-radius: 2px;
  margin-right: 8px;
  vertical-align: 2px;
}

.tag-reason {
  color: var(--bad);
  background: rgba(168, 107, 94, 0.08);
  border: 1px solid rgba(168, 107, 94, 0.25);
}

.tag-solution {
  color: var(--good);
  background: rgba(94, 122, 94, 0.08);
  border: 1px solid rgba(94, 122, 94, 0.25);
}

.tag-standalone {
  display: inline-block;
  margin-bottom: 24px;
  padding: 6px 18px;
  font-size: 13px;
}

/* =====================================================
   vs-block 顶部小标签（原因 / 处理方式）
   ===================================================== */

.vs-type-tag {
  display: inline-block;
  padding: 5px 14px;
  font-family: "Noto Serif SC", serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.3em;
  border-radius: 2px;
  margin-bottom: 18px;
}

.vs-type-tag.reason {
  color: var(--bad);
  background: rgba(168, 107, 94, 0.08);
  border: 1px solid rgba(168, 107, 94, 0.3);
}

.vs-type-tag.solution {
  color: var(--good);
  background: rgba(94, 122, 94, 0.08);
  border: 1px solid rgba(94, 122, 94, 0.3);
}

/* =====================================================
   mature-block / mature-list
   用于「真正成熟」类的右侧对照
   ===================================================== */

.mature-block {
  padding: 20px 0;
}

.mature-block p {
  font-family: "Noto Serif SC", serif;
  font-size: 16px;
  color: var(--text);
  line-height: 2;
  font-weight: 400;
  letter-spacing: 0.04em;
}

.mature-block p strong {
  font-weight: 500;
  color: var(--text);
}

.mature-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mature-list li {
  position: relative;
  padding: 10px 0 10px 22px;
  font-size: 15px;
  color: var(--text-soft);
  font-weight: 300;
  line-height: 1.8;
}

.mature-list li::before {
  content: "×";
  position: absolute;
  left: 0;
  top: 10px;
  color: var(--bad);
  font-size: 14px;
  font-weight: 500;
}

/* =====================================================
   no-win-list（无双赢清单）
   ===================================================== */

.no-win-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 30px 0 50px;
}

.no-win-tag {
  display: inline-block;
  padding: 10px 20px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  font-family: "Noto Serif SC", serif;
  font-size: 15px;
  color: var(--text);
  font-weight: 400;
  letter-spacing: 0.08em;
  border-radius: 2px;
}

/* =====================================================
   statements（陈述句列表）
   ===================================================== */

.statements {
  margin: 30px 0 50px;
  padding: 0;
}

.statement {
  position: relative;
  padding: 18px 24px 18px 36px;
  margin: 8px 0;
  font-family: "Noto Serif SC", serif;
  font-size: 16px;
  color: var(--text);
  line-height: 1.8;
  font-weight: 400;
  background: var(--bg-soft);
  border-left: 2px solid var(--accent-soft);
  letter-spacing: 0.04em;
}

.statement::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

/* =====================================================
   declarations（强对比三连）
   ===================================================== */

.declarations {
  margin: 40px 0;
  padding: 36px 40px;
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.declarations p {
  font-family: "Noto Serif SC", serif;
  font-size: 18px;
  color: var(--text);
  line-height: 2.2;
  font-weight: 400;
  letter-spacing: 0.06em;
}

.declarations p strong {
  font-weight: 500;
  color: var(--accent);
}

.declarations p span {
  color: var(--text-soft);
  font-weight: 300;
}

/* =====================================================
   three-options（道歉三种情况）
   ===================================================== */

.three-options {
  margin: 40px 0;
}

.option {
  margin-bottom: 14px;
  background: var(--bg-soft);
  padding: 24px 30px;
  border-left: 3px solid var(--line);
}

.option:nth-child(2) {
  border-left-color: var(--accent-soft);
}

.option:nth-child(3) {
  border-left-color: var(--accent);
}

.option-row {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.option-label {
  flex: 1;
  min-width: 240px;
  font-family: "Noto Serif SC", serif;
  font-size: 15px;
  color: var(--text);
  font-weight: 400;
  letter-spacing: 0.04em;
}

.option-arrow {
  font-size: 18px;
  color: var(--accent);
  font-weight: 300;
}

.option-result {
  flex: 1;
  min-width: 200px;
  font-family: "Noto Serif SC", serif;
  font-size: 15px;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.06em;
}

/* =====================================================
   cycle-vertical（强势循环垂直流程）
   ===================================================== */

.cycle-vertical {
  margin: 50px auto;
  max-width: 560px;
}

.cycle-step {
  padding: 18px 28px;
  background: var(--bg-soft);
  border-left: 2px solid var(--line);
  font-family: "Noto Serif SC", serif;
  font-size: 16px;
  color: var(--text);
  font-weight: 400;
  letter-spacing: 0.05em;
  transition: all 0.4s ease;
}

.cycle-step.highlight {
  background: var(--bg);
  border-left: 3px solid var(--bad);
  color: var(--bad);
  font-weight: 500;
  transform: translateX(8px);
}

.cycle-step.muted {
  background: transparent;
  color: var(--text-mute);
  border-left: 2px dashed var(--line);
  font-style: italic;
  text-align: center;
  font-size: 14px;
}

.cycle-arrow {
  text-align: center;
  color: var(--text-mute);
  font-size: 16px;
  margin: 6px 0;
  letter-spacing: 0.3em;
}

/* =====================================================
   rule-list（共同规则列表）
   ===================================================== */

.rule-list {
  margin: 50px 0;
  padding: 0;
  list-style: none;
  counter-reset: rule;
}

.rule-list li {
  counter-increment: rule;
  position: relative;
  padding: 18px 24px 18px 72px;
  margin: 8px 0;
  font-family: "Noto Serif SC", serif;
  font-size: 16px;
  color: var(--text);
  font-weight: 400;
  line-height: 1.9;
  background: var(--bg-soft);
  border-left: 2px solid var(--accent-soft);
  letter-spacing: 0.04em;
}

.rule-list li::before {
  content: counter(rule, decimal-leading-zero);
  position: absolute;
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-family: "Cormorant Garamond", serif;
  font-size: 18px;
  font-style: italic;
  color: var(--accent);
  font-weight: 500;
}

/* =====================================================
   closing-declarations（结尾五连陈述）
   ===================================================== */

.closing-declarations {
  margin: 30px auto 80px;
  max-width: 720px;
  padding: 40px 50px;
  background: rgba(139, 111, 71, 0.06);
  border-top: 1px solid var(--accent);
  border-bottom: 1px solid var(--accent);
}

.closing-declarations p {
  font-family: "Noto Serif SC", serif;
  font-size: 17px;
  color: var(--text);
  line-height: 2.4;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-align: left;
}

.closing-declarations p strong {
  font-weight: 500;
  color: var(--accent);
}

.closing-declarations p span {
  color: var(--text-soft);
  font-weight: 300;
}

/* =====================================================
   响应式
   ===================================================== */

@media (max-width: 900px) {
  .section { padding: 100px 0; }
  .container { padding: 0 32px; }
  .section-title { font-size: 28px; margin-bottom: 50px; }
  .cover-title { font-size: 64px; }
  .cover-subtitle { font-size: 18px; }
  .two-col,
  .conversation,
  .vs-block,
  .two-col-compare,
  .training { grid-template-columns: 1fr; gap: 24px; }
  .three-col { grid-template-columns: 1fr; gap: 20px; }
  .four-step { grid-template-columns: 1fr 1fr; gap: 16px; }
  .closing-quote { font-size: 22px; padding: 40px 24px; }
  .closing-final { padding: 40px 24px; font-size: 18px; }
  .closing-declarations { padding: 28px 20px; }
  .closing-declarations p { font-size: 15px; }
  .key-quote { font-size: 18px; padding: 40px 24px; }
  .key-quote.strong { font-size: 22px; padding: 50px 24px; }
  .key-quote::before { font-size: 48px; top: -4px; left: 16px; }
}

@media (max-width: 500px) {
  .four-step { grid-template-columns: 1fr; }
  .cover-title { font-size: 48px; letter-spacing: 0.15em; }
  .layer { flex-direction: column; gap: 8px; }
  .no-win-list { gap: 8px; }
  .no-win-tag { padding: 8px 14px; font-size: 14px; }
  .option-row { flex-direction: column; align-items: flex-start; gap: 8px; }
  .option-label, .option-result { min-width: 0; }
  .declarations { padding: 24px 20px; }
  .closing-declarations { padding: 24px 20px; }
  .closing-declarations p { font-size: 15px; }
  .cycle-step { font-size: 15px; padding: 14px 20px; }
}