/* 阅读页 / 归档页 专用样式（依赖 styles.css 的变量与基础组件） */

/* ---------- 阅读进度条 ---------- */
.progress{
  position:fixed;top:0;left:0;height:2px;width:0;
  background:linear-gradient(90deg,var(--jade),var(--amber));
  z-index:60;transition:width .1s linear;
}

/* ---------- 文章头部 ---------- */
.post-head{
  background:linear-gradient(180deg,#04110E 0%,#0F2B22 62%,#17402F 100%);
  padding:64px 0 72px;
}
.post-crumb{
  display:flex;align-items:center;gap:10px;
  font-size:12.5px;color:#6E9A84;margin-bottom:28px;
}
.post-crumb a{color:#8FB6A5;transition:color .25s ease}
.post-crumb a:hover{color:var(--mist)}
.post-cat{
  display:inline-flex;align-items:center;
  padding:7px 14px;border-radius:999px;
  background:rgba(116,172,140,.14);border:1px solid rgba(116,172,140,.3);
  font-size:12.5px;font-weight:500;color:var(--mist);letter-spacing:.6px;
  margin-bottom:22px;
}
.post-title{
  font-size:clamp(30px,4vw,52px);line-height:1.24;letter-spacing:1px;
  font-weight:600;color:var(--text-light);max-width:900px;
}
.post-meta{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  margin-top:26px;font-size:13px;font-weight:300;color:#7CA791;
}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:#3F6252}
.post-meta .auto-tag{
  padding:4px 10px;border-radius:999px;
  background:rgba(215,136,74,.16);color:var(--amber-l);font-size:11.5px;font-weight:500;
}

/* ---------- 正文 ---------- */
.article{background:var(--paper);color:var(--text-dark);padding:80px 0 96px}
.article-body{max-width:760px;margin:0 auto}
.article-body p{
  font-family:var(--serif);
  font-size:17.5px;line-height:2.05;letter-spacing:.4px;
  color:#25463B;margin-bottom:30px;
}
.article-body p:first-child::first-letter{
  font-size:44px;line-height:1;font-weight:600;color:var(--moss);
  float:left;margin:6px 10px 0 0;
}
.article-body h2{
  font-size:24px;line-height:1.5;letter-spacing:.8px;color:var(--moss);
  margin:44px 0 22px;padding-left:16px;border-left:3px solid var(--amber);
}
.article-body blockquote{
  margin:38px 0;padding:26px 30px;border-radius:14px;
  background:#E4EFE7;border-left:3px solid var(--moss);
  font-family:var(--serif);font-size:19px;line-height:1.85;color:#1C4433;
}
.article-body blockquote::before{content:'「';color:var(--moss);opacity:.5}
.article-body blockquote::after{content:'」';color:var(--moss);opacity:.5}

/* 当日观测数据卡 */
.obs-card{
  margin:38px 0;padding:26px 28px;border-radius:18px;
  background:linear-gradient(180deg,#0F2A21 0%,#14392C 100%);
  color:var(--text-light);
}
.obs-title{
  font-size:12px;letter-spacing:2.4px;color:#6E9A84;margin-bottom:20px;
  display:flex;align-items:center;gap:10px;
}
.obs-title::after{content:'';flex:1;height:1px;background:rgba(116,172,140,.2)}
.obs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px 16px}
.obs-grid div{display:flex;flex-direction:column;gap:6px}
.obs-grid dt{font-size:11.5px;font-weight:300;color:#7CA791}
.obs-grid dd{margin:0;font-family:var(--serif);font-size:20px;font-weight:600;color:#EFF5F1}

/* 标签 */
.post-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:44px;padding-top:32px;border-top:1px solid var(--line)}
.post-tags span{padding:7px 16px;border-radius:999px;background:#E4EFE7;font-size:12.5px;color:var(--moss)}

/* ---------- 上一篇 / 下一篇 ---------- */
.post-nav{background:var(--paper);padding-bottom:96px}
.post-nav-inner{
  max-width:760px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:16px;
}
.pnav{
  display:flex;flex-direction:column;gap:10px;
  padding:24px 26px;border-radius:16px;background:#fff;border:1px solid var(--line);
  transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s ease,border-color .3s ease;
}
.pnav:hover{transform:translateY(-3px);box-shadow:0 14px 32px -14px rgba(18,50,40,.22);border-color:var(--mist)}
.pnav.next{text-align:right;align-items:flex-end}
.pnav-label{font-size:11.5px;letter-spacing:2px;color:#7E9A8B}
.pnav-title{font-family:var(--serif);font-size:16.5px;line-height:1.5;color:var(--text-dark)}
.pnav.empty{opacity:.45;pointer-events:none}

/* ---------- 归档页 ---------- */
.arch-head{
  background:linear-gradient(180deg,#04110E 0%,#0F2B22 100%);
  padding:80px 0 72px;
}
.arch-title{font-size:clamp(30px,3.6vw,46px);line-height:1.22;letter-spacing:1px;color:var(--text-light)}
.arch-sub{margin-top:18px;font-size:15px;font-weight:300;line-height:1.8;color:#93B7AA}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-top:34px}
.filter{
  padding:9px 20px;border-radius:999px;border:1px solid rgba(116,172,140,.3);
  background:transparent;color:#9CC9B4;font-family:var(--sans);font-size:13.5px;cursor:pointer;
  transition:background .25s ease,color .25s ease,border-color .25s ease;
}
.filter:hover{border-color:var(--jade);color:#CFE2D8}
.filter.on{background:var(--amber);border-color:var(--amber);color:var(--ink);font-weight:500}

.arch-list{background:var(--paper);padding:64px 0 96px}
.arch-inner{max-width:960px;margin:0 auto}
.arch-row{
  display:flex;align-items:center;gap:20px;
  padding:22px 26px;border-bottom:1px solid var(--line);
  color:var(--text-dark);
  transition:background .25s ease,padding-left .25s ease;
}
.arch-row:hover{background:#E8F0EA;padding-left:34px}
.arch-date{font-size:13px;color:#7E9A8B;flex:0 0 84px;font-variant-numeric:tabular-nums}
.arch-cat{flex:0 0 auto;font-size:11.5px;padding:4px 12px;border-radius:999px;background:#E4EFE7;color:var(--moss)}
.arch-row-t{font-family:var(--serif);font-size:18px;font-weight:500;flex:1 1 auto;min-width:0}
.arch-row-t .auto{font-size:11px;color:var(--amber);margin-left:8px}
.arch-ex{display:none}   /* 摘要只在手机版卡片里显示（见 mobile.css） */
.arch-min{font-size:12px;color:#92AAA0;flex:0 0 auto}
.pager{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:48px;flex-wrap:wrap}
.pager button{
  min-width:38px;height:38px;padding:0 12px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:#3E5A4E;
  font-family:var(--sans);font-size:13.5px;cursor:pointer;
  transition:background .25s ease,color .25s ease,border-color .25s ease;
}
.pager button:hover:not(:disabled){border-color:var(--moss);color:var(--moss)}
.pager button.on{background:var(--moss);border-color:var(--moss);color:#fff}
.pager button:disabled{opacity:.4;cursor:default}
.arch-empty{padding:60px 0;text-align:center;color:#7E9A8B;font-size:14.5px}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:28px;bottom:28px;width:46px;height:46px;border-radius:50%;
  border:1px solid rgba(116,172,140,.35);background:rgba(7,18,15,.86);
  color:var(--mist);font-size:18px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .3s ease,transform .3s ease;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-3px);border-color:var(--jade)}

/* ---------- 响应式 ---------- */
@media (max-width:860px){
  .post-head{padding:44px 0 52px}
  .article{padding:56px 0 64px}
  .article-body p{font-size:16.5px;line-height:1.95}
  .obs-grid{grid-template-columns:repeat(2,1fr)}
  .post-nav{padding-bottom:64px}
  .post-nav-inner{grid-template-columns:1fr}
  .pnav.next{text-align:left;align-items:flex-start}
  .arch-row{flex-wrap:wrap;gap:10px 14px}
  .arch-date{flex:0 0 auto}
  .arch-row-t{flex:1 1 100%;order:3}
  .arch-min{order:4}
  .to-top{right:16px;bottom:16px}
}