/* ===== 子页面通用样式 ===== */
/* 与 style-v2.css 配合使用 */

/* --- 等高线底纹 --- */
.topo-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('../images/topo-lines.svg');
  background-size: 100% auto;
  background-repeat: repeat-y;
  pointer-events: none;
  z-index: 0;
  opacity: 1;
}

.topo-bg-light {
  opacity: 0.6;
  filter: invert(0);
}

/* --- 顶部导航条 --- */
.top-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 52px;
  background: rgba(25, 25, 25, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #333;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
}

.top-bar-light {
  background: rgba(255, 255, 255, 0.95);
  border-bottom-color: #e6e6e6;
}

.top-bar-back {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #999;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.top-bar-light .top-bar-back {
  color: #7c7c7c;
}

.top-bar-back:hover {
  color: #fffa00;
}

.top-bar-light .top-bar-back:hover {
  color: #191919;
}

.top-bar-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: #666;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.top-bar-light .top-bar-title {
  color: #999;
}

/* --- 暗色页面 --- */
.page-dark {
  background: #191919;
  color: #fff;
}

.page-light {
  background: #fff;
  color: #191919;
}

/* ===== 作品详情页 ===== */
.work-hero {
  position: relative;
  z-index: 1;
}

.work-hero-image {
  display: none; /* 图片改为放在正文中 */
}

.work-hero-content {
  padding: 3rem 3rem 2rem;
  max-width: 1000px;
  margin: 0 auto;
  text-align: left;
}

.work-hero-tag {
  font-size: 0.65rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #fffa00;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.work-hero-tag::before {
  content: '';
  display: block;
  width: 30px;
  height: 3px;
  background: #fffa00;
  transform: scaleX(0);
  transform-origin: left;
  animation: barSlideIn 0.2s ease-out 0.5s forwards;
}

.work-hero-title {
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 0.5rem;
  letter-spacing: 1px;
}

.work-hero-genre {
  font-size: 1rem;
  color: #b9b9b9;
  font-weight: 600;
  letter-spacing: 1px;
}

.work-detail-body {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 3rem;
  padding: 0 3rem 3rem;
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* 正文内图片 */
.work-inline-image {
  width: 100%;
  margin: 1.5rem 0;
  border: 1px solid #333;
}

.work-inline-image img {
  width: 100%;
  display: block;
}

.work-inline-caption {
  padding: 0.5rem 0.75rem;
  font-size: 0.7rem;
  color: #666;
  text-align: center;
  letter-spacing: 0.5px;
  border-top: 1px solid #262626;
  background: #111;
}

.work-detail-section h2 {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #7c7c7c;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid #333;
}

.work-detail-section p {
  font-size: 0.95rem;
  color: #b9b9b9;
  line-height: 1.9;
  margin-bottom: 1rem;
}

.work-detail-section h3 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin: 1.5rem 0 0.75rem;
}

.detail-list {
  list-style: none;
  padding: 0;
  margin-bottom: 1.5rem;
}

.detail-list li {
  position: relative;
  padding: 0.4rem 0 0.4rem 1rem;
  font-size: 0.9rem;
  color: #b9b9b9;
  line-height: 1.7;
}

.detail-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 4px;
  height: 4px;
  background: #fffa00;
}

.detail-list li strong {
  color: #fff;
}

.detail-table {
  border: 1px solid #333;
  margin: 1rem 0 1.5rem;
  overflow-x: auto;
}

.table-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 0;
  border-bottom: 1px solid #262626;
  font-size: 0.8rem;
}

.table-row:last-child {
  border-bottom: none;
}

.table-header {
  background: #1a1a1a;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.65rem;
  color: #999;
}

.table-row span {
  padding: 0.6rem 0.75rem;
  color: #b9b9b9;
  border-right: 1px solid #262626;
}

.table-row span:last-child {
  border-right: none;
}

.table-header span {
  color: #999;
}

.work-detail-sidebar {
  background: #131315;
  border: 1px solid #333;
  padding: 1.5rem;
  height: fit-content;
  position: sticky;
  top: 70px;
}

.sidebar-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid #262626;
}

.sidebar-item:last-of-type {
  border-bottom: none;
}

.sidebar-label {
  font-size: 0.65rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: #666;
}

.sidebar-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
}

.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid #262626;
}

.sidebar-tag {
  padding: 0.2rem 0.6rem;
  border: 1px solid #333;
  font-size: 0.65rem;
  font-weight: 700;
  color: #999;
  letter-spacing: 0.5px;
}

.sidebar-tag:first-child {
  border-color: #fffa00;
  color: #fffa00;
}

/* ===== 文章页 ===== */
.article-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 2rem;
  position: relative;
  z-index: 1;
}

.article-page-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid #e6e6e6;
}

.article-page-tag {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: #7c7c7c;
  margin-bottom: 1.5rem;
}

.article-page-header h1 {
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 1.5rem;
  letter-spacing: 0.5px;
}

.article-page-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: #7c7c7c;
  font-weight: 600;
}

.meta-link {
  color: #0066cc;
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 700;
}

.meta-link:hover {
  color: #004499;
}

.article-page-body {
  font-size: 1rem;
  line-height: 1.9;
}

.article-summary {
  padding: 1.5rem 2rem;
  background: #f7f7f7;
  border-left: 4px solid #fffa00;
  margin-bottom: 2.5rem;
  font-size: 0.95rem;
  color: #555;
}

.article-toc {
  margin-bottom: 2.5rem;
  padding: 1.5rem 2rem;
  border: 1px solid #e6e6e6;
}

.article-toc h3 {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #999;
  margin-bottom: 1rem;
}

.article-toc ul {
  list-style: none;
  padding: 0;
}

.article-toc > ul > li {
  padding: 0.4rem 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: #333;
  border-bottom: 1px solid #f0f0f0;
}

.article-toc ul ul {
  margin-top: 0.3rem;
  padding-left: 1.25rem;
}

.article-toc ul ul li {
  font-weight: 500;
  font-size: 0.85rem;
  color: #666;
  padding: 0.2rem 0;
  border: none;
}

.article-section {
  margin-bottom: 2.5rem;
}

.article-section h2 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid #e6e6e6;
  color: #191919;
}

.article-section h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 1.5rem 0 0.5rem;
  color: #333;
}

.article-section p {
  color: #555;
  margin-bottom: 1rem;
  line-height: 2;
}

.article-excerpt h2 {
  font-size: 1.3rem;
  font-weight: 800;
  margin: 2rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid #e6e6e6;
}

.article-excerpt h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 1.5rem 0 0.5rem;
  color: #333;
}

.article-excerpt p {
  color: #555;
  margin-bottom: 1rem;
}

.article-excerpt a,
.article-page-body a {
  color: #0066cc;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-excerpt a:hover,
.article-page-body a:hover {
  color: #004499;
}

.article-page-meta a {
  color: #0066cc;
}

.article-figure {
  margin: 1.5rem 0 2rem;
  padding: 0;
}

.article-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid #e0e0e0;
}

.article-figure figcaption {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: #999;
  text-align: center;
}

.article-cta {
  margin-top: 3rem;
  padding: 2rem;
  background: #191919;
  text-align: center;
}

.article-cta p {
  color: #e6e6e6;
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

.article-cta .btn-primary {
  display: inline-flex;
  background: #fffa00;
  color: #191919;
  font-weight: 800;
  text-decoration: none;
}

.article-cta .btn-primary:hover {
  background: #fff;
}

/* --- Footer 子页面变体 --- */
.page-footer {
  background: #131315;
  border-top-color: #333;
  margin-top: 0;
}

.page-footer .footer-inner {
  padding: 0 3rem;
  color: #666;
}

.page-footer a {
  color: #999;
}

.page-footer a:hover {
  color: #fffa00;
}

.page-footer-light {
  background: #fff;
  border-top: 1px solid #e6e6e6;
}

.page-footer-light .footer-inner {
  color: #999;
}

.page-footer-light a {
  color: #666;
}

.page-footer-light a:hover {
  color: #191919;
}

/* ===== 子页面入场 + 滚动动画 ===== */

/* 页面加载入场序列（hero 区域）
   0.5s  黄条从左滑入
   0.7s  标签文字闪烁出现
   0.8s  标题闪烁出现
   0.95s 副标题等渐入
   1.1s  第二批渐入 */

.page-bar-in {
  opacity: 0;
  transform: scaleX(0);
  transform-origin: left;
  animation: barSlideIn 0.2s ease-out 0.5s forwards;
}

/* 标签闪烁：用 color 控制文字，不影响 ::before 黄条 */
.page-tag-flicker {
  color: transparent;
  animation: pageFlickerTag 0.1s steps(1) 0.7s forwards;
}

/* 标题闪烁 */
.page-title-flicker {
  opacity: 0;
  animation: flicker2 0.1s steps(1) 0.8s forwards;
}

/* 暗色页面标签闪烁（黄色文字） */
@keyframes pageFlickerTag {
  0%   { color: transparent; }
  15%  { color: #fffa00; }
  30%  { color: transparent; }
  50%  { color: #fffa00; }
  65%  { color: transparent; }
  80%  { color: #fffa00; }
  100% { color: #fffa00; }
}

/* 亮色页面标签闪烁（灰色文字） */
.page-light .page-tag-flicker {
  animation: pageFlickerTagLight 0.1s steps(1) 0.7s forwards;
}

@keyframes pageFlickerTagLight {
  0%   { color: transparent; }
  15%  { color: #7c7c7c; }
  30%  { color: transparent; }
  50%  { color: #7c7c7c; }
  65%  { color: transparent; }
  80%  { color: #7c7c7c; }
  100% { color: #7c7c7c; }
}

.page-fade-in {
  opacity: 0;
  animation: pageSlideUp 0.6s ease 0.95s forwards;
}

.page-fade-in-2 {
  opacity: 0;
  animation: pageSlideUp 0.6s ease 1.1s forwards;
}

@keyframes pageSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* 滚动触发动画（子页面正文区域） */
.page-scroll-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.page-scroll-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 侧边栏滚动渐入 */
.page-sidebar-in {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease 0.3s, transform 0.6s ease 0.3s;
}

.page-sidebar-in.visible {
  opacity: 1;
  transform: translateX(0);
}

/* --- 响应式 --- */
@media (max-width: 768px) {
  .work-hero-image {
    height: 250px;
  }
  .work-hero-content {
    padding: 1.5rem;
  }
  .work-hero-title {
    font-size: 1.75rem;
  }
  .work-detail-body {
    grid-template-columns: 1fr;
    padding: 1.5rem;
  }
  .article-page {
    padding: 2rem 1.25rem;
  }
  .article-page-header h1 {
    font-size: 1.5rem;
  }
  .top-bar {
    padding: 0 1rem;
  }
}