/* =============================================================================
 * timeline-archive.css —— 「旧时光」(/site/time/) 时间轴改版 · 站点独立样式
 * -----------------------------------------------------------------------------
 * 不改主题源码：主题渲染出的 DOM 结构一个字都没动，只在本文件里重新排版。
 *   主题结构：#article-container > .timeline > .timeline-item(.headline) >
 *             .timeline-item-title > .item-circle > p       ← 日期
 *             .timeline-item-content > ol > li              ← 正文
 * 本文件的选择器全部带 #article-container + .tl-ready 两级守卫：
 *   .tl-ready 由 /js/timeline-archive.js 在确认「整页只有这一条 timeline、
 *   且条目数 ≥ 8」之后才加上。JS 没跑（被拦 / 报错 / 缓存旧版）整块失效，
 *   页面自动退回主题原样，不会出现半成品。
 * 配色全部从 --theme-color / --font-color / --card-bg 派生，跟主题色与明暗模式走。
 * 回滚：删掉 _config.fomalhaut.yml 里的这两行即可 ——
 *   <link rel="stylesheet" href="/css/timeline-archive.css?v=20261011">
 *   <script defer src="/js/timeline-archive.js?v=20261011"></script>
 *
 * 2026-10-06 修窄屏横向溢出：栅格第二列原写 1fr，而 1fr 的最小尺寸是 min-content，
 *   于是最长的那串不可断词（形如 “cur/avif/bmp/…/wasm” 的斜线清单，约 88 字符、
 *   单行 654px）把整条轨道顶到 687px，卡片撑破 390px 视口，触屏一拖整页横移。
 *   改成 minmax(0, 1fr)（配 min-width: 0）后轨道不再有 min-content 底线，
 *   长串交给卡片上已有的 overflow-wrap: break-word 断行。
 *   （配置备份 bak/20261009-timeline-archive/before/_config.fomalhaut.yml）
 * 改本文件记得把 ?v= 一起提版本，否则会吃缓存。
 * ========================================================================== */

/* ── 0. 变量与容器 ───────────────────────────────────────────────────────── */

#article-container .timeline.tl-ready {
  /* 轨道列宽 / 列间距（JS 生成的年份分隔器与条目共用同一套栅格） */
  --tl-rail: 104px;
  --tl-gap: 28px;

  --tl-c: var(--theme-color, #39c5bb);
  --tl-ink: var(--font-color, #4c4948);
  --tl-card: var(--card-bg, #fff);

  /* 旧浏览器回退值写在每个 color-mix 的上一行 */
  --tl-hair: rgba(0, 0, 0, .08);
  --tl-hair: color-mix(in srgb, var(--font-color, #4c4948) 13%, transparent);
  --tl-mute: rgba(76, 73, 72, .52);
  --tl-mute: color-mix(in srgb, var(--font-color, #4c4948) 52%, transparent);
  --tl-soft: rgba(57, 197, 187, .1);
  --tl-soft: color-mix(in srgb, var(--tl-c) 10%, transparent);
  --tl-tint: #f7fbfb;
  --tl-tint: color-mix(in srgb, var(--tl-c) 4%, var(--card-bg, #fff));

  /* 轨道线的起止由 /js/timeline-archive.js 量好写进来（头部高度不定，CSS 算不出来） */
  --tl-rail-top: 30px;
  --tl-rail-bottom: 24px;

  position: relative;
  margin: 0;
  padding: 0;
  border-left: 0;
}

/* 深色模式：color-mix 的兜底值也要跟着换（不支持 color-mix 的浏览器才用得到） */
[data-theme='dark'] #article-container .timeline.tl-ready {
  --tl-card: #121212;
  --tl-hair: rgba(255, 255, 255, .1);
  --tl-mute: rgba(255, 255, 255, .46);
  --tl-tint: #1a1e1f;
  --tl-tint: color-mix(in srgb, var(--tl-c) 6%, var(--card-bg, #121212));
}

/* 自绘纵向轨道：顶部浓、中段淡、末端淡出 */
#article-container .timeline.tl-ready::before {
  content: '';
  position: absolute;
  left: calc(var(--tl-rail) + var(--tl-gap) / 2);
  top: var(--tl-rail-top);
  bottom: var(--tl-rail-bottom);
  width: 2px;
  border-radius: 2px;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(57, 197, 187, .5), rgba(57, 197, 187, .18) 10%, rgba(57, 197, 187, .18) 90%, transparent);
  background: linear-gradient(180deg,
    color-mix(in srgb, var(--tl-c) 50%, transparent) 0%,
    color-mix(in srgb, var(--tl-c) 20%, transparent) 9%,
    color-mix(in srgb, var(--tl-c) 20%, transparent) 91%,
    transparent 100%);
}

/* ── 1. 头部：标题 + 统计 + 年份锚点 ─────────────────────────────────────── */

#article-container .timeline.tl-ready .timeline-item.headline {
  display: block;
  margin: 0 0 6px;
  padding: 0;
}

#article-container .timeline.tl-ready .timeline-item.headline .item-circle::before {
  display: none;
}

#article-container .timeline.tl-ready .tl-head {
  padding: 2px 0 8px;
}

#article-container .timeline.tl-ready .tl-head-kicker {
  display: inline-block;
  margin: 0 0 12px;
  padding: 3px 11px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .16em;
  line-height: 1.7;
  text-transform: uppercase;
  color: var(--tl-c);
  background: var(--tl-soft);
}

#article-container .timeline.tl-ready .tl-head-title {
  margin: 0 0 8px;
  padding: 0;
  font-size: 1.85rem;
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--tl-ink);
}

#article-container .timeline.tl-ready .tl-head-sub {
  margin: 0 0 18px;
  padding: 0;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--tl-mute);
  font-variant-numeric: tabular-nums;
}

#article-container .timeline.tl-ready .tl-head-sub b {
  color: var(--tl-c);
  font-weight: 700;
}

#article-container .timeline.tl-ready .tl-head-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 30px;
  padding: 0;
}

#article-container .timeline.tl-ready .tl-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 5px 12px;
  border: 1px solid var(--tl-hair);
  border-radius: 10px;
  background: var(--tl-card);
  color: var(--tl-ink);
  font-size: .88rem;
  font-weight: 700;
  line-height: 1.5;
  text-decoration: none;
  font-variant-numeric: tabular-nums;
  transition: color .2s, border-color .2s, transform .2s, box-shadow .2s;
}

#article-container .timeline.tl-ready .tl-chip span {
  font-size: .72rem;
  font-weight: 600;
  color: var(--tl-mute);
}

#article-container .timeline.tl-ready a.tl-chip:hover {
  color: var(--tl-c);
  border-color: rgba(57, 197, 187, .45);
  border-color: color-mix(in srgb, var(--tl-c) 45%, transparent);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px -8px rgba(57, 197, 187, .7);
  box-shadow: 0 6px 16px -8px color-mix(in srgb, var(--tl-c) 70%, transparent);
}

#article-container .timeline.tl-ready a.tl-chip:hover span {
  color: var(--tl-c);
}

#article-container .timeline.tl-ready .tl-chip--new,
#article-container .timeline.tl-ready a.tl-chip--new:hover {
  color: #fff;
  background: var(--tl-c);
  border-color: var(--tl-c);
}

#article-container .timeline.tl-ready .tl-chip--new span,
#article-container .timeline.tl-ready a.tl-chip--new:hover span {
  color: rgba(255, 255, 255, .85);
}

/* ── 2. 年份分隔器 ───────────────────────────────────────────────────────── */

#article-container .timeline.tl-ready .tl-year {
  display: grid;
  grid-template-columns: var(--tl-rail) minmax(0, 1fr);
  column-gap: var(--tl-gap);
  align-items: center;
  margin: 44px 0 16px;
  scroll-margin-top: 88px;
}

#article-container .timeline.tl-ready .tl-year-num {
  grid-column: 1;
  text-align: right;
  font-size: 1.45rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: .01em;
  color: var(--tl-mute);
  font-variant-numeric: tabular-nums;
  transition: color .25s;
}

#article-container .timeline.tl-ready .tl-year--now .tl-year-num {
  color: var(--tl-c);
}

#article-container .timeline.tl-ready .tl-year-line {
  grid-column: 2;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: calc(var(--tl-gap) / -2);
  min-width: 0;
}

#article-container .timeline.tl-ready .tl-year-line i {
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(90deg, rgba(57, 197, 187, .45), transparent 88%);
  background: linear-gradient(90deg, color-mix(in srgb, var(--tl-c) 42%, transparent), transparent 88%);
}

#article-container .timeline.tl-ready .tl-year-line em {
  flex: 0 0 auto;
  font-style: normal;
  font-size: .76rem;
  letter-spacing: .04em;
  color: var(--tl-mute);
  font-variant-numeric: tabular-nums;
}

/* ── 3. 单条记录：左日期轨 + 右卡片 ─────────────────────────────────────── */

#article-container .timeline.tl-ready .timeline-item {
  display: grid;
  grid-template-columns: var(--tl-rail) minmax(0, 1fr);
  column-gap: var(--tl-gap);
  align-items: start;
  margin: 0 0 18px;
}

#article-container .timeline.tl-ready .timeline-item > .timeline-item-title {
  grid-column: 1;
  position: relative;
  padding: 14px 0 0;
  text-align: right;
}

#article-container .timeline.tl-ready .timeline-item > .timeline-item-title .item-circle > p {
  margin: 0;
  padding: 0;
  font-weight: 700;
  line-height: 1.35;
  font-variant-numeric: tabular-nums;
}

#article-container .timeline.tl-ready .tl-y {
  display: block;
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--tl-mute);
}

#article-container .timeline.tl-ready .tl-md {
  display: block;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--tl-ink);
}

/* 轨道上的节点圆点：和 --tl-gap 联动，永远落在轨道正中间 */
#article-container .timeline.tl-ready .timeline-item > .timeline-item-title .item-circle::before {
  left: auto;
  right: calc(var(--tl-gap) / -2 - 5.5px);
  top: 18px;
  width: 7px;
  height: 7px;
  border: 2px solid var(--tl-hair);
  border-radius: 50%;
  background: var(--tl-card);
  transform: none;
  transition: background .25s, border-color .25s;
}

#article-container .timeline.tl-ready .timeline-item:hover > .timeline-item-title .item-circle::before,
#article-container .timeline.tl-ready .timeline-item.tl-item--latest > .timeline-item-title .item-circle::before {
  border-color: var(--tl-c);
  background: var(--tl-c);
}

/* 内容卡片 */
#article-container .timeline.tl-ready .timeline-item > .timeline-item-content {
  grid-column: 2;
  min-width: 0;
  position: relative;
  padding: 16px 22px 17px 24px;
  border: 1px solid var(--tl-hair);
  border-radius: 14px;
  background: var(--tl-tint);
  color: var(--tl-ink);
  font-size: .95rem;
  line-height: 1.8;
  overflow-wrap: break-word;
  word-wrap: break-word;
  box-shadow: 0 1px 2px rgba(7, 17, 27, .03);
  transition: border-color .25s, box-shadow .25s, transform .25s;
}

/* 卡片左侧主题色装饰条 */
#article-container .timeline.tl-ready .timeline-item > .timeline-item-content::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 16px;
  bottom: 16px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--tl-c);
  opacity: .34;
  transition: opacity .25s, top .25s, bottom .25s;
}

#article-container .timeline.tl-ready .timeline-item:hover > .timeline-item-content {
  border-color: rgba(57, 197, 187, .32);
  border-color: color-mix(in srgb, var(--tl-c) 32%, transparent);
  transform: translateY(-1px);
  box-shadow: 0 8px 22px -14px rgba(57, 197, 187, .8), 0 1px 2px rgba(7, 17, 27, .03);
  box-shadow: 0 8px 22px -14px color-mix(in srgb, var(--tl-c) 80%, transparent), 0 1px 2px rgba(7, 17, 27, .03);
}

#article-container .timeline.tl-ready .timeline-item:hover > .timeline-item-content::before {
  opacity: 1;
  top: 10px;
  bottom: 10px;
}

/* 最新一条：卡片右上角飘一枚小胶囊 */
#article-container .timeline.tl-ready .timeline-item.tl-item--latest > .timeline-item-content::after {
  content: '最新记录';
  position: absolute;
  top: -10px;
  right: 16px;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: .06em;
  line-height: 1.7;
  color: #fff;
  background: var(--tl-c);
  box-shadow: 0 4px 12px -6px rgba(57, 197, 187, .9);
  box-shadow: 0 4px 12px -6px color-mix(in srgb, var(--tl-c) 90%, transparent);
}

/* 里程碑（区间式标题）里的整段说明：这是条目原文，要当标题看，不能弱化成小字 */
#article-container .timeline.tl-ready .tl-mile-title {
  margin: 0 0 12px;
  padding: 0 0 10px;
  border-bottom: 1px dashed var(--tl-hair);
  font-size: .95rem;
  font-weight: 800;
  line-height: 1.6;
  letter-spacing: .01em;
  color: var(--tl-ink);
}

/* ── 4. 正文有序列表：序号改成主题色圆角小方块 ───────────────────────────── */

#article-container .timeline.tl-ready .timeline-item-content > ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: tlol;
}

#article-container .timeline.tl-ready .timeline-item-content > ol > li {
  counter-increment: tlol;
  position: relative;
  margin: 0;
  padding-left: 36px;
  list-style: none;
}

#article-container .timeline.tl-ready .timeline-item-content > ol > li + li {
  margin-top: 10px;
}

#article-container .timeline.tl-ready .timeline-item-content > ol > li::before {
  content: counter(tlol);
  position: absolute;
  left: 0;
  top: 3px;
  width: 22px;
  height: 22px;
  line-height: 22px;
  text-align: center;
  border-radius: 7px;
  font-size: 11.5px;
  font-weight: 800;
  color: var(--tl-c);
  background: var(--tl-soft);
  font-variant-numeric: tabular-nums;
  transition: color .2s, background .2s;
}

#article-container .timeline.tl-ready .timeline-item:hover > .timeline-item-content > ol > li::before {
  color: #fff;
  background: var(--tl-c);
}

/* ── 5. 窄屏：轨道收窄，卡片内边距减小 ─────────────────────────────────── */

@media screen and (max-width: 768px) {
  #article-container .timeline.tl-ready {
    --tl-rail: 62px;
    --tl-gap: 16px;
  }

  #article-container .timeline.tl-ready .tl-head-title {
    font-size: 1.45rem;
  }

  #article-container .timeline.tl-ready .tl-year {
    margin: 34px 0 14px;
  }

  #article-container .timeline.tl-ready .tl-year-num {
    font-size: 1.12rem;
  }

  #article-container .timeline.tl-ready .timeline-item {
    margin: 0 0 14px;
  }

  #article-container .timeline.tl-ready .timeline-item > .timeline-item-title {
    padding-top: 12px;
  }

  #article-container .timeline.tl-ready .tl-y {
    font-size: .64rem;
    letter-spacing: .08em;
  }

  #article-container .timeline.tl-ready .tl-md {
    font-size: .9rem;
  }

  #article-container .timeline.tl-ready .timeline-item > .timeline-item-content {
    padding: 14px 15px 15px 16px;
    border-radius: 12px;
    font-size: .9rem;
    line-height: 1.75;
  }

  #article-container .timeline.tl-ready .timeline-item-content > ol > li {
    padding-left: 30px;
  }

  #article-container .timeline.tl-ready .timeline-item-content > ol > li::before {
    width: 20px;
    height: 20px;
    line-height: 20px;
    font-size: 11px;
    border-radius: 6px;
  }
}

/* 动效降级 */
@media (prefers-reduced-motion: reduce) {
  #article-container .timeline.tl-ready .timeline-item > .timeline-item-content,
  #article-container .timeline.tl-ready .timeline-item > .timeline-item-content::before,
  #article-container .timeline.tl-ready .timeline-item > .timeline-item-title .item-circle::before,
  #article-container .timeline.tl-ready .timeline-item-content > ol > li::before,
  #article-container .timeline.tl-ready a.tl-chip {
    transition: none;
  }

  #article-container .timeline.tl-ready .timeline-item:hover > .timeline-item-content {
    transform: none;
  }

  #article-container .timeline.tl-ready a.tl-chip:hover {
    transform: none;
  }
}