/* ==========================================================================
   三亩地 · 内页专属样式（模块页/分类页/案例页/关于页/功能页）
   ========================================================================== */

/* ---------- 通用：图文交替段 ---------- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 64px;
}

.feature-row:last-child { margin-bottom: 0; }

.feature-row.flip .feature-media { order: 2; }

.feature-media {
  position: relative;
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.feature-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.feature-media:hover img { transform: scale(1.04); }

.feature-media .fm-badge {
  position: absolute;
  top: 18px;
  left: 18px;
  padding: 6px 14px;
  background: rgba(253, 250, 243, 0.92);
  backdrop-filter: blur(6px);
  border-radius: var(--r-pill);
  font-size: 12px;
  color: var(--pink-ink);
  font-weight: 600;
}

.feature-body .fb-eyebrow {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: 0.28em;
  color: var(--pink-deep);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.feature-body h3 {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  margin-bottom: 16px;
  line-height: 1.4;
}

.feature-body p {
  font-size: 14.5px;
  color: var(--body);
  line-height: 1.95;
  margin-bottom: 18px;
}

.feature-body .fb-list { margin-bottom: 22px; }

.feature-body .fb-list li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
  font-size: 14px;
  color: var(--body);
}

.feature-body .fb-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 18px;
  height: 18px;
  background: var(--sprout);
  color: #fff;
  border-radius: 50%;
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- 代码块展示（学习页） ---------- */
.code-block {
  background: #2d2a22;
  border-radius: var(--r-md);
  padding: 24px 26px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.85;
  color: #f0e6d2;
  overflow-x: auto;
  position: relative;
  margin: 20px 0;
  box-shadow: var(--shadow-md);
}

.code-block::before {
  content: "";
  position: absolute;
  top: 16px;
  left: 18px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #d89b94;
  box-shadow: 16px 0 0 #d9b45a, 32px 0 0 #a8c18a;
}

.code-block pre { padding-top: 22px; margin: 0; }

.code-block .c-key { color: #f2a89c; }
.code-block .c-str { color: #d9b45a; }
.code-block .c-com { color: #8a7f6a; font-style: italic; }
.code-block .c-fn { color: #a8c18a; }

/* ---------- 卡片网格（通用列表） ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.entry-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid rgba(236, 223, 200, 0.55);
  box-shadow: var(--shadow-sm);
  transition: all 0.4s ease;
}

.entry-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--pink-soft);
}

.entry-card .ec-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.entry-card .ec-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.entry-card:hover .ec-media img { transform: scale(1.06); }

.entry-card .ec-cat {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 5px 12px;
  background: rgba(253, 250, 243, 0.92);
  backdrop-filter: blur(6px);
  border-radius: var(--r-pill);
  font-size: 11.5px;
  color: var(--pink-ink);
  font-weight: 600;
}

.entry-card .ec-body {
  padding: 22px 22px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.entry-card .ec-body h4 {
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: 10px;
  transition: color 0.3s ease;
}

.entry-card:hover .ec-body h4 { color: var(--pink-ink); }

.entry-card .ec-excerpt {
  font-size: 13px;
  color: var(--body);
  line-height: 1.8;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.entry-card .ec-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 12px;
  color: var(--muted);
}

.entry-card .ec-foot .more { color: var(--pink-ink); font-weight: 600; }

/* ---------- 案例展示页 ---------- */
.case-hero-card {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  background: var(--white);
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
  margin-bottom: 48px;
}

.case-hero-card .ch-media {
  position: relative;
  aspect-ratio: 4 / 3;
}

.case-hero-card .ch-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-hero-card .ch-body {
  padding: 44px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.case-hero-card .ch-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--yellow-mist);
  color: var(--yellow-deep);
  border-radius: var(--r-pill);
  font-size: 12px;
  font-weight: 600;
  align-self: flex-start;
  margin-bottom: 16px;
}

.case-hero-card h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  margin-bottom: 16px;
  line-height: 1.4;
}

.case-hero-card .ch-desc {
  font-size: 14.5px;
  color: var(--body);
  line-height: 1.9;
  margin-bottom: 24px;
}

.case-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 26px;
}

.case-meta .cm-item {
  padding: 14px 16px;
  background: var(--cream);
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
}

.case-meta .cm-item span {
  display: block;
  font-size: 11.5px;
  color: var(--muted);
  margin-bottom: 4px;
}

.case-meta .cm-item strong {
  font-size: 14px;
  color: var(--ink);
}

.tech-stack { display: flex; flex-wrap: wrap; gap: 8px; }

.tech-stack span {
  padding: 5px 12px;
  font-size: 12px;
  background: var(--pink-mist);
  color: var(--pink-ink);
  border-radius: var(--r-pill);
}

/* 案例过程 */
.case-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px dashed var(--line);
}

.case-step:last-child { border-bottom: none; }

.case-step .cs-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--yellow-mist), var(--pink-mist));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--pink-ink);
  font-weight: 700;
  border: 2px solid var(--cream);
  box-shadow: var(--shadow-sm);
}

.case-step h4 { font-size: 17px; margin-bottom: 8px; }
.case-step p { font-size: 14px; color: var(--body); line-height: 1.85; }

/* ---------- 分类导航标签 ---------- */
.cat-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
}

.cat-tabs a {
  padding: 8px 18px;
  font-size: 13.5px;
  color: var(--body);
  border-radius: var(--r-pill);
  transition: all 0.3s ease;
}

.cat-tabs a:hover,
.cat-tabs a.active {
  background: var(--ink);
  color: var(--cream);
}

/* ---------- 资源工具卡 ---------- */
.res-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.res-card {
  display: flex;
  gap: 16px;
  padding: 22px;
  background: var(--white);
  border-radius: var(--r-md);
  border: 1px solid rgba(236, 223, 200, 0.55);
  transition: all 0.4s ease;
}

.res-card:hover {
  border-color: var(--pink-soft);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.res-ico {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--r-sm);
  background: var(--yellow-mist);
  color: var(--yellow-deep);
  display: flex;
  align-items: center;
  justify-content: center;
}

.res-card h5 { font-size: 15px; margin-bottom: 4px; }
.res-card p { font-size: 12.5px; color: var(--muted); margin-bottom: 8px; }
.res-card .res-link { font-size: 12.5px; color: var(--pink-ink); font-weight: 600; }

/* ---------- 学习路线图页 ---------- */
.roadmap-path {
  position: relative;
  padding: 40px 0;
}

.rm-stage {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px dashed var(--line);
}

.rm-stage:last-child { border-bottom: none; }

.rm-stage .rm-label {
  text-align: center;
  position: relative;
}

.rm-stage .rm-label .rm-circle {
  width: 90px;
  height: 90px;
  margin: 0 auto 12px;
  border-radius: 50%;
  background: var(--cream);
  border: 2px dashed var(--pink-soft);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  color: var(--pink-ink);
}

.rm-stage .rm-label .rm-circle strong { font-size: 22px; line-height: 1; }
.rm-stage .rm-label .rm-circle span { font-size: 11px; margin-top: 4px; }

.rm-stage .rm-label h5 { font-size: 15px; }

.rm-content h4 { font-size: 17px; margin-bottom: 12px; }
.rm-content p { font-size: 13.5px; color: var(--body); margin-bottom: 14px; line-height: 1.85; }

.rm-topics { display: flex; flex-wrap: wrap; gap: 8px; }

.rm-topics span {
  padding: 5px 12px;
  font-size: 12px;
  background: var(--yellow-mist);
  color: var(--yellow-deep);
  border-radius: var(--r-pill);
}

/* ---------- 站点地图 ---------- */
.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.sitemap-col h4 {
  font-family: var(--font-serif);
  font-size: 17px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--yellow-soft);
  color: var(--ink);
}

.sitemap-col ul li { margin-bottom: 10px; }

.sitemap-col ul a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--body);
}

.sitemap-col ul a::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--pink-soft);
  transition: background 0.3s ease;
}

.sitemap-col ul a:hover { color: var(--pink-ink); }
.sitemap-col ul a:hover::before { background: var(--pink-deep); }

/* ---------- 404 ---------- */
.notfound {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-h) + 40px) 0 40px;
}

.notfound .nf-num {
  font-family: var(--font-serif);
  font-size: clamp(6rem, 18vw, 12rem);
  line-height: 1;
  color: var(--pink-soft);
  font-weight: 700;
  letter-spacing: -0.04em;
  margin-bottom: 16px;
}

.notfound h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 14px;
}

.notfound p {
  font-size: 15px;
  color: var(--body);
  max-width: 460px;
  margin: 0 auto 28px;
}

/* ---------- 理念/价值观卡 ---------- */
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.value-card {
  padding: 32px 26px;
  background: var(--white);
  border-radius: var(--r-lg);
  border: 1px solid rgba(236, 223, 200, 0.55);
  text-align: center;
  transition: all 0.4s ease;
}

.value-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--pink-soft);
}

.value-ico {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--yellow-mist), var(--pink-mist));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--pink-ink);
}

.value-card h4 { font-size: 17px; margin-bottom: 10px; }
.value-card p { font-size: 13.5px; color: var(--body); line-height: 1.85; }

/* ---------- 引用块 ---------- */
.quote-block {
  position: relative;
  padding: 36px 40px;
  background: linear-gradient(135deg, var(--pink-mist), var(--yellow-mist));
  border-radius: var(--r-lg);
  margin: 32px 0;
}

.quote-block::before {
  content: "“";
  position: absolute;
  top: 6px;
  left: 24px;
  font-family: var(--font-serif);
  font-size: 72px;
  color: var(--pink-soft);
  line-height: 1;
}

.quote-block p {
  position: relative;
  z-index: 1;
  font-family: var(--font-serif);
  font-size: 17px;
  color: var(--ink);
  line-height: 1.8;
  font-style: italic;
}

.quote-block .q-author {
  display: block;
  margin-top: 14px;
  font-size: 13px;
  color: var(--pink-ink);
  font-style: normal;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .card-grid, .res-grid, .value-grid, .sitemap-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .feature-row { grid-template-columns: 1fr; gap: 28px; }
  .feature-row.flip .feature-media { order: 0; }
  .case-hero-card { grid-template-columns: 1fr; }
  .case-hero-card .ch-body { padding: 32px 26px; }
  .rm-stage { grid-template-columns: 1fr; gap: 16px; }
  .rm-stage .rm-label { display: flex; align-items: center; gap: 16px; text-align: left; }
  .rm-stage .rm-label .rm-circle { margin: 0; width: 64px; height: 64px; }
}

@media (max-width: 560px) {
  .card-grid, .res-grid, .value-grid, .sitemap-grid { grid-template-columns: 1fr; }
  .case-meta { grid-template-columns: 1fr; }
  .case-step { grid-template-columns: 1fr; gap: 12px; }
  .quote-block { padding: 28px 24px; }
}