/* ============================================================
 * components.css — 六站组件规格(来源:DESIGN.md §5)
 * ============================================================ */

/* ---------- 站 0 始发站 ---------- */
.station--hero {
  position: relative;
  justify-content: center;
}

/* 头像内联进身份行,替代名字 */
.hero-avatar-inline {
  display: inline-block;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  vertical-align: middle;
  margin-right: 10px;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-2);
}

/* 标题:统一走 --text-display(与全站站标题同字号)+ 桌面单行不换行 + 上移15px */
.hero-title {
  font-size: var(--text-display);
  font-weight: 100;
  letter-spacing: 0.02em;
  line-height: 1.35;
  white-space: nowrap;
  margin-top: -15px;
}

/* 身份行与"985本科 CS BME"同级,不强调 */
.hero-identity {
  color: var(--color-ink-2);
  font-size: var(--text-h3);
  font-weight: 400;
}

.hero-go {
  margin-top: var(--space-2);
  font-size: var(--text-body);
  color: var(--color-ink);
}

.hero-arrow {
  display: inline-block;
  margin-left: 4px;
  animation: nudge 1.6s var(--ease-out) infinite;
}
@keyframes nudge {
  0%, 100% { transform: translateX(0); }
  50%      { transform: translateX(8px); }
}

/* ---------- 站 1 跨界 ---------- */
.node-list { max-width: 640px; }

.node {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.node-key {
  flex: 0 0 auto;
  width: 88px;
  padding-top: 4px;
  font-size: var(--text-h3);
  font-weight: 700;
  letter-spacing: 0.04em;
}
.node-key .node-idx {
  display: block;
  font-size: var(--text-small);
  font-weight: 400;
  color: var(--color-ink-2);
  letter-spacing: 0.15em;
}

.node-body { max-width: 34em; }

.node-photo {
  margin-top: var(--space-3);
  max-width: 340px;
  border: 1px solid var(--color-ink-3);
}
.node-photo img {
  width: 100%;
  filter: contrast(1.05);
}

/* 卡间虚线轨道 — 装饰,禁动画 */
.node-rail {
  width: 1px;
  height: 48px;
  margin: var(--space-2) 0 var(--space-2) 43px; /* 对齐 node-key 中心 */
  background: repeating-linear-gradient(
    to bottom,
    var(--color-ink-3) 0 4px,
    transparent 4px 9px
  );
}

/* ---------- 站 2 知识库(视频压缩占比,自动播放) ---------- */
.video-card {
  position: relative;
  max-width: 560px;
  margin-bottom: var(--space-3);
  border-radius: 8px;
  overflow: hidden;
}
.video-card video {
  display: block;
  width: 100%;
  background: #000;
}

.video-fallback {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  color: var(--color-ink-2);
}
.video-card.has-error .video-fallback { display: flex; }

/* 知识库:视频+文案在左列,数据点移右侧栏(与视频同宽对齐) */
.knowledge-layout {
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
}
.knowledge-main {
  max-width: 560px; /* 与视频同宽,下方文案随之对齐 */
}
.knowledge-data.data-points {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 200px;
  margin-left: auto;
  margin-right: 50px; /* 右栏左移 50px 微调 */
}

.data-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  max-width: 640px;
}
.data-value {
  display: block;
  font-size: 2rem;
  font-weight: 100;
  line-height: 1.2;
}
.data-label {
  display: block;
  margin-top: 4px;
  font-size: var(--text-small);
  color: var(--color-ink-2);
}

/* ---------- 站 3 孵化场 ---------- */
/* 孵化场:两项目并排双栏,信息完整一屏展示 */
.project-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: start;
}
.project { display: block; }
.project-text { margin-bottom: var(--space-3); }

/* 副行提示:次级灰,降级为附属信息 */
.project-note {
  color: var(--color-ink-2);
}

/* 媒体占比收缩:全部限制宽度,防溢出 */
.project .mockup { max-width: 100%; }
.project-media { max-width: 400px; }

.project-text h3 {
  font-size: var(--text-h3);
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.project-text p { margin-bottom: var(--space-2); }

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--space-2);
  font-size: var(--text-small);
  color: var(--color-ink-2);
  border: 1px solid var(--color-ink-3);
  border-radius: 999px;
  padding: 2px 12px;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-ink);
  animation: breathe 2s ease-in-out infinite;
}
@keyframes breathe {
  0%, 100% { opacity: 0.35; }
  50%      { opacity: 1; }
}

/* 浏览器窗口 mockup(纯 CSS) */
.mockup {
  border: 1px solid var(--color-ink-3);
  border-radius: 8px;
  overflow: hidden;
  background: var(--color-bg);
}
.mockup-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-ink-3);
}
.mockup-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-ink-3);
}
.mockup-addr {
  flex: 1;
  margin-left: 8px;
  font-size: 11px;
  color: var(--color-ink-2);
  text-align: center;
}
.mockup img { width: 100%; }

/* 游戏素材:两张纸片左右并排交叠,hover 的纸片置顶归正 */
.game-stack {
  position: relative;
  display: flex;
  width: 400px;
  max-width: 100%;
  margin-inline: auto;
}
.paper {
  position: relative;
  flex: 0 0 58%; /* 两张 58% + 负边距 -16% = 交叠区约 35px */
  background: var(--color-bg);
  border: 1px solid var(--color-ink-3);
  border-radius: 2px;
  padding: 6px;
  box-shadow: 0 1px 4px rgba(17, 17, 17, 0.1); /* 纸张深度的唯一例外 */
  transition: transform 0.3s var(--ease-out);
}
.paper img { width: 100%; }
.paper:first-child {
  transform: rotate(-2deg);
  margin-right: -16%;
  z-index: 1;
}
.paper:last-child {
  transform: rotate(1.5deg);
  margin-top: 10px;
  z-index: 2;
}
.paper:hover,
.paper:focus-visible {
  transform: rotate(0deg) translateY(-3px);
  z-index: 5;
}

/* ---------- 站 4 审美(三图 4:3:3 列比,等高,地点浮层) ---------- */
.gallery {
  display: grid;
  grid-template-columns: 4fr 3fr 3fr;
  gap: var(--space-2);
  height: 52vh;
  height: 52dvh;
}
.photo {
  position: relative;
  overflow: hidden;
  background: var(--color-ink-3);
}
.photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 地点浮层 — 数据揭示交互(无参数,仅地点) */
.photo-cap {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  padding: 10px 16px;
  background: rgba(17, 17, 17, 0.72);
  color: var(--color-bg);
  font-size: var(--text-small);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}
.photo:hover .photo-cap,
.photo:focus-within .photo-cap { opacity: 1; transform: none; }

/* ---------- 站 5 终点站 ---------- */
.station--end { justify-content: center; }

.end-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
}

.contact-list {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-2);
  font-size: var(--text-body);
}
.contact-list a {
  position: relative;
  padding-bottom: 4px;
  background-image: linear-gradient(var(--color-ink), var(--color-ink));
  background-size: 0% 1px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size 0.35s var(--ease-out);
}
.contact-list a:hover,
.contact-list a:focus-visible { background-size: 100% 1px; }

.end-note {
  margin-top: var(--space-5);
  font-size: var(--text-small);
  color: var(--color-ink-2);
  font-style: italic;
}

/* ---------- 无脚本兜底 ---------- */
.noscript-fallback { display: none; }
noscript .noscript-fallback {
  display: block;
  padding: var(--space-4);
  text-align: center;
  color: var(--color-ink-2);
}