/* ============================================================
   单篇文章页 · 方案 3「出血特稿」
   ------------------------------------------------------------
   沿用 /method/ 栏目页的那一套语言，一个字不改：
   令牌 / 940 容器 / 冰蓝唯一强调 / 细线分层 / 三层固定径向光晕 / 海鸥
   只改一件事 —— 版面宽度的节奏：
     680 窄栏读正文 → 关键区块出血到视口全宽 → 回到窄栏
   窄 → 宽 → 窄 → 宽，滚动时页面在呼吸
   ============================================================ */

.sect-post{
  --sm-bg0:#04101f;
  --sm-bg1:#07182c;
  --sm-bg2:#0a2038;
  --sm-hi:#7fd8ff;
  --sm-txt:#b9cde0;
  --sm-title:#f2f8ff;
  --sm-mute:#8ba6bf;
  --sm-ink:#06192d;
  --sm-ice0:#d8ebfa;
  --sm-ice1:#c3dff4;
  --sm-line:rgba(127,216,255,.16);
  --sm-line-soft:rgba(127,216,255,.10);
  --sm-rad:16px;
  --sm-rad-s:4px;

  /* 出血区块比底色深一档的「井」 */
  --sm-well:#020a12;
  /* 全站唯一的收尾线：渐变发丝线，不用实色 */
  --sm-hair:linear-gradient(90deg,
      rgba(127,216,255,0) 0%,
      rgba(127,216,255,.38) 14%,
      rgba(127,216,255,.38) 86%,
      rgba(127,216,255,0) 100%);
  --sm-pad:clamp(20px,5vw,48px);
}






:where(h1,h2,h3,p,ul,ol,li,blockquote,figure){margin:0;padding:0}
:where(ul,ol){list-style:none}
:where(a){color:inherit;text-decoration:none}
a:focus-visible{outline:2px solid var(--sm-hi);outline-offset:3px;border-radius:var(--sm-rad-s)}
::selection{background:rgba(127,216,255,.26);color:#f2f8ff}

/* ---------- 大气层：固定三层径向光晕，随滚动不动 ---------- */
.fp-sky{
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(820px 460px at 4% -12%,rgba(127,216,255,.17),transparent 62%),
    radial-gradient(700px 440px at 98% 0%,rgba(18,60,97,.55),transparent 68%),
    radial-gradient(900px 600px at 50% 118%,rgba(127,216,255,.07),transparent 70%),
    linear-gradient(180deg,var(--sm-bg0) 0%,var(--sm-bg1) 46%,var(--sm-bg2) 100%);
}

.fp-shell{
  position:relative;
  z-index:1;
  display:flex;
  flex-direction:column;
  min-height:100vh;
}

/* ---------- 骨架 ---------- */
.fp-wrap{
  width:100%;
  max-width:940px;
  margin:0 auto;
  padding:0 var(--sm-pad);
}
/* 正文窄栏：940 里的 680 */
.fp-col{
  width:100%;
  max-width:680px;
  margin:0 auto;
}

/* ---------- 页头：sticky 玻璃条 ---------- */
.fp-head{
  position:sticky;
  top:0;
  z-index:6;
  background:rgba(4,16,31,.9);
  border-bottom:1px solid var(--sm-line-soft);
  -webkit-backdrop-filter:saturate(140%) blur(14px);
  backdrop-filter:saturate(140%) blur(14px);
}
.fp-head-in{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px 28px;
  min-height:66px;
}
.fp-brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  flex:none;
  padding:4px 0;
  color:var(--sm-title);
}
.fp-mark{width:20px;height:20px;flex:none;color:var(--sm-hi)}
.fp-brand-name{font-size:16px;font-weight:600;letter-spacing:.05em}
.fp-brand-dot{color:var(--sm-hi);opacity:.75;font-size:13px}
.fp-brand-sub{font-size:12.5px;letter-spacing:.08em;color:var(--sm-txt);opacity:.82}

.fp-nav{flex:none}
.fp-nav ul{display:flex;align-items:center;gap:4px}
.fp-nav a{
  display:inline-block;
  padding:6px 10px;
  border-radius:var(--sm-rad-s);
  font-size:13.5px;
  color:var(--sm-txt);
  white-space:nowrap;
}
.fp-nav a:hover{color:var(--sm-title)}
.fp-nav a[aria-current="page"]{color:var(--sm-hi)}
.fp-nav a[aria-current="page"]::after{
  content:"";
  display:block;
  height:1.5px;
  margin-top:2px;
  border-radius:2px;
  background:var(--sm-hi);
  opacity:.75;
}

.fp-main{flex:1 0 auto;padding-bottom:clamp(10px,2vw,20px)}

/* ---------- 题区：在 940 容器内，同栏目页语法 ---------- */
.fp-hero{
  position:relative;
  padding-top:clamp(44px,6vw,76px);
  padding-bottom:clamp(8px,1.4vw,14px);
}
.fp-kicker{
  display:flex;
  align-items:center;
  gap:12px;
  padding-right:clamp(110px,15vw,190px);
  font-size:12px;
  letter-spacing:.16em;
  color:var(--sm-hi);
}
.fp-kicker-sub{
  font-size:10px;
  letter-spacing:.22em;
  opacity:.62;
  white-space:nowrap;
}
.fp-kicker-t{white-space:nowrap;flex:none}
.fp-kicker::after{
  content:"";
  flex:1 1 auto;
  height:1px;
  min-width:18px;
  background:linear-gradient(90deg,rgba(127,216,255,.38),rgba(127,216,255,0));
}
.fp-h1{
  margin-top:12px;
  font-size:clamp(42px,6.2vw,66px);
  line-height:1.12;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--sm-title);
}
.fp-h1-i{color:var(--sm-hi);white-space:nowrap}
.fp-lead{
  margin-top:18px;
  max-width:34ch;
  font-size:clamp(15.5px,1.3vw,17px);
  line-height:1.7;
  color:var(--sm-txt);
}
.fp-facts{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:6px 26px;
  margin-top:clamp(20px,2.8vw,30px);
  padding-top:15px;
  border-top:1px solid var(--sm-line-soft);
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--sm-mute);
}
.fp-facts li{display:inline-flex;align-items:baseline;gap:6px}
.fp-facts b{
  font-weight:600;
  font-size:13px;
  letter-spacing:.04em;
  color:#cfe9ff;
  font-variant-numeric:tabular-nums;
}

/* 海鸥 */
.fp-gulls{
  position:absolute;
  top:34px;
  right:0;
  width:clamp(112px,14vw,176px);
  height:auto;
  color:var(--sm-hi);
  opacity:.58;
  pointer-events:none;
}

/* ---------- 提问行：hero 下方一条 ---------- */
.fp-ask{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  align-items:baseline;
  column-gap:clamp(16px,2.2vw,26px);
  margin-top:clamp(26px,3.4vw,40px);
  padding-top:clamp(16px,2vw,20px);
  padding-bottom:clamp(16px,2vw,22px);
  border-top:1px solid var(--sm-line-soft);
  border-bottom:1px solid var(--sm-line-soft);
}
.fp-ask-k{
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--sm-hi);
  opacity:.72;
  white-space:nowrap;
}
.fp-ask-k span{
  margin-left:8px;
  font-size:10px;
  font-weight:400;
  letter-spacing:.22em;
  opacity:.62;
}
.fp-ask-t{
  font-size:clamp(15.5px,1.55vw,18px);
  line-height:1.62;
  letter-spacing:.01em;
  color:#d9e9f8;
}

/* ============================================================
   出血块基座
   100vw 撑到视口两边，内容仍回到 940 网格上 ——
   出血的是背景与发丝线，不是文字，所以一眼还是这个站
   ============================================================ */
.fp-bleed{
  position:relative;
  width:100vw;
  max-width:100vw;
  margin-left:calc(50% - 50vw);
  margin-right:calc(50% - 50vw);
}
.fp-in{
  width:100%;
  max-width:940px;
  margin:0 auto;
  padding-left:var(--sm-pad);
  padding-right:var(--sm-pad);
}

/* 宽区块的题头：左边中文标签 + 英文小字，右边一条注 */
.fp-bhead{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:8px 20px;
  flex-wrap:wrap;
}
.fp-bhead-k{
  display:inline-flex;
  align-items:baseline;
  gap:10px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--sm-hi);
}
.fp-bhead-k span{
  font-size:10px;
  letter-spacing:.22em;
  opacity:.62;
  white-space:nowrap;
}
.fp-bhead-n{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--sm-mute);
}
.fp-bhead-n b{font-weight:600;color:#cfe9ff}

/* ---------- ① 数据带：比底色深一档的井，上下渐变发丝线 ---------- */
.fp-band{
  margin-top:clamp(34px,4.4vw,52px);
  background:
    radial-gradient(680px 240px at 50% -30%,rgba(127,216,255,.06),transparent 72%),
    linear-gradient(180deg,#030b14 0%,var(--sm-well) 62%,#030c17 100%);
}
.fp-band::before,
.fp-band::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  height:1px;
  background:var(--sm-hair);
}
.fp-band::before{top:0}
.fp-band::after{bottom:0}
.fp-band-in{padding-top:clamp(26px,3.4vw,38px);padding-bottom:clamp(28px,3.6vw,40px)}

.fp-band-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  margin-top:clamp(20px,2.6vw,28px);
}
.fp-band-cell{
  padding:0 clamp(12px,1.5vw,22px);
  border-left:1px solid var(--sm-line-soft);
}
.fp-band-cell:first-child{border-left:0;padding-left:0}
.fp-band-k{
  font-size:11.5px;
  letter-spacing:.16em;
  color:var(--sm-mute);
  white-space:nowrap;
}
.fp-band-v{
  display:flex;
  align-items:baseline;
  gap:7px;
  margin-top:9px;
  font-size:clamp(34px,4.6vw,56px);
  font-weight:700;
  line-height:1;
  letter-spacing:.02em;
  color:#eaf6ff;
  font-variant-numeric:tabular-nums;
}
.fp-band-u{
  font-size:12.5px;
  font-weight:400;
  letter-spacing:.12em;
  color:var(--sm-mute);
  transform:translateY(-.18em);
}
.fp-band-n{
  margin-top:11px;
  font-size:11.5px;
  line-height:1.62;
  letter-spacing:.02em;
  color:var(--sm-mute);
  max-width:24ch;
}
.fp-band-n b{font-weight:500;color:#a8c6de}

/* ---------- ② 爬虫时间轴：纯 CSS，22 天空档就是那个洞 ---------- */
.fp-tl{margin-top:clamp(34px,4.4vw,52px)}
.fp-tl-in{
  padding-top:clamp(26px,3.4vw,38px);
  padding-bottom:clamp(26px,3.4vw,38px);
}
.fp-tl-graph{
  display:flex;
  align-items:stretch;
  height:clamp(132px,17vw,208px);
  margin-top:clamp(20px,2.6vw,28px);
  border-bottom:1px solid var(--sm-line);
}
.fp-tl-act{
  display:flex;
  align-items:flex-end;
  gap:2px;
  min-width:0;
}
.fp-tl-a{flex:24 1 0}
.fp-tl-c{flex:1 1 0}
.fp-tl-d{flex:9 1 0}

/* 柱：高度百分比由内联 --h 给出，无 JS */
.fp-tl-act i{
  display:block;
  flex:1 1 0;
  min-width:1px;
  height:var(--h,0%);
  border-radius:1px 1px 0 0;
  background:linear-gradient(180deg,#9fdcff 0%,rgba(127,216,255,.44) 100%);
  opacity:.88;
}
.fp-tl-act i.is-peak{
  background:linear-gradient(180deg,#f4fbff 0%,var(--sm-hi) 58%,rgba(127,216,255,.55) 100%);
  opacity:1;
  box-shadow:0 0 18px rgba(127,216,255,.42);
}
.fp-tl-act i.is-zero{
  height:2px;
  border-radius:0;
  background:rgba(127,216,255,.16);
  opacity:1;
}

/* 22 天空档：一块被掏空的井，斜纹 + 竖排字 */
.fp-tl-gap{
  position:relative;
  flex:22 1 0;
  min-width:0;
  display:flex;
  align-items:center;
  justify-content:center;
  border-left:1px solid rgba(127,216,255,.22);
  border-right:1px solid rgba(127,216,255,.22);
  background:
    repeating-linear-gradient(135deg,rgba(127,216,255,.075) 0 1px,transparent 1px 9px),
    linear-gradient(180deg,rgba(2,8,15,.92),rgba(2,8,15,.34));
}
.fp-tl-gap-t{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  font-size:11.5px;
  letter-spacing:.3em;
  color:rgba(127,216,255,.74);
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}

/* 轴：四个刻度按日宽比例落位 */
.fp-tl-axis{
  position:relative;
  height:26px;
  margin-top:11px;
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--sm-mute);
  font-variant-numeric:tabular-nums;
}
.fp-tl-axis span{
  position:absolute;
  top:0;
  white-space:nowrap;
}
.fp-tl-axis span::before{
  content:"";
  position:absolute;
  top:-11px;
  left:50%;
  width:1px;
  height:6px;
  background:rgba(127,216,255,.28);
}
.fp-tl-axis .t1{left:0;transform:none}
.fp-tl-axis .t1::before{left:0}
.fp-tl-axis .t2{left:42.86%;transform:translateX(-50%)}
.fp-tl-axis .t3{left:83.93%;transform:translateX(-50%)}
.fp-tl-axis .t4{left:100%;transform:translateX(-100%)}
.fp-tl-axis .t4::before{left:auto;right:0}

/* ---------- 窄栏正文 ---------- */
.fp-col > * + *{margin-top:clamp(22px,2.9vw,32px)}
.fp-col > .fp-sec{margin-top:clamp(40px,5vw,60px)}
.fp-col > .fp-bleed{margin-top:clamp(38px,4.8vw,56px)}
.fp-col > .fp-bleed + *{margin-top:clamp(38px,4.8vw,56px)}

/* 导语段（正文第一段）：比正文大半档，作为"开篇" */
.fp-open{
  font-size:15.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:#cfdfee;
}
.fp-open .fp-n{color:#eaf6ff;font-weight:600}

.fp-p{
  font-size:14.5px;
  line-height:1.85;
  letter-spacing:.01em;
}
.fp-sec .fp-p + .fp-p{margin-top:.95em}
.fp-n{
  color:#cfe9ff;
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}
strong,.fp-key{
  font-weight:600;
  color:#eef8ff;
}

/* 章节头：编号 + 标题 + 右侧微标签 + 一条 --line */
.fp-shead{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:baseline;
  column-gap:clamp(10px,1.4vw,14px);
  padding-bottom:13px;
  border-bottom:1px solid var(--sm-line);
}
.fp-idx{
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--sm-hi);
  opacity:.72;
  font-variant-numeric:tabular-nums;
}
.fp-h2{
  font-size:clamp(20px,2.4vw,24px);
  font-weight:700;
  line-height:1.35;
  letter-spacing:.06em;
  color:#9fe1ff;
}
.fp-role{
  font-size:10px;
  letter-spacing:.22em;
  color:var(--sm-mute);
  opacity:.62;
  white-space:nowrap;
}
.fp-sec .fp-shead + .fp-p{margin-top:20px}

/* 五步链路：窄栏内的编号细线列表 */
.fp-steps{margin-top:clamp(30px,3.6vw,40px)}
.fp-steps-k{
  display:flex;
  align-items:baseline;
  gap:10px;
  font-size:11.5px;
  letter-spacing:.16em;
  color:var(--sm-hi);
  opacity:.72;
}
.fp-steps-k span{
  font-size:10px;
  letter-spacing:.22em;
  opacity:.62;
}
.fp-steps-list{margin-top:6px}
.fp-steps-list li{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  column-gap:clamp(12px,1.6vw,18px);
  padding:13px 0;
  border-top:1px solid var(--sm-line-soft);
}
.fp-steps-n{
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--sm-hi);
  opacity:.6;
  font-variant-numeric:tabular-nums;
  padding-top:2px;
}
.fp-steps-t{
  font-size:14px;
  line-height:1.72;
  color:var(--sm-txt);
}
.fp-steps-t b{
  display:block;
  font-size:14px;
  font-weight:600;
  letter-spacing:.04em;
  color:#d9e9f8;
}
.fp-steps-t span{
  display:block;
  margin-top:3px;
  font-size:13px;
  line-height:1.72;
  color:var(--sm-mute);
}

/* ---------- ③ 洞察：全宽，大字号引文，左右渐变发丝线 ---------- */
.fp-quote{
  margin-left:calc(50% - 50vw);
}
.fp-quote-in{
  position:relative;
  padding-top:clamp(38px,5vw,60px);
  padding-bottom:clamp(38px,5vw,60px);
}
.fp-quote-in::before,
.fp-quote-in::after{
  content:"";
  position:absolute;
  top:0;
  bottom:0;
  width:1px;
  background:linear-gradient(180deg,
      rgba(127,216,255,0) 0%,
      rgba(127,216,255,.34) 22%,
      rgba(127,216,255,.34) 78%,
      rgba(127,216,255,0) 100%);
}
.fp-quote-in::before{left:var(--sm-pad)}
.fp-quote-in::after{right:var(--sm-pad)}

/* 引文盒子与正文 680 栏左边缘严格对齐 */
.fp-qbox{
  width:100%;
  max-width:680px;
  margin:0 auto;
}

.fp-quote-k{
  display:flex;
  align-items:baseline;
  gap:10px;
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--sm-hi);
  opacity:.8;
}
.fp-quote-k span{
  font-size:10px;
  font-weight:400;
  letter-spacing:.22em;
  opacity:.62;
}
.fp-quote-t{
  margin:clamp(16px,2vw,22px) 0 0;
  font-size:clamp(17px,1.75vw,20px);
  line-height:1.74;
  letter-spacing:.02em;
  color:#dff0ff;
}
.fp-quote-t b{font-weight:600;color:#ffffff}

/* ---------- ④ 五条踩坑：全宽 5 列，列间 1px 竖线 ---------- */
.fp-pits{
  background:linear-gradient(180deg,rgba(4,16,31,0) 0%,rgba(2,10,18,.55) 50%,rgba(4,16,31,0) 100%);
}
.fp-pits::before,
.fp-pits::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  height:1px;
  background:var(--sm-hair);
}
.fp-pits::before{top:0}
.fp-pits::after{bottom:0}
.fp-pits-in{padding-top:clamp(30px,3.8vw,42px);padding-bottom:clamp(32px,4vw,44px)}

.fp-pits-grid{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  margin-top:clamp(20px,2.6vw,28px);
}
.fp-pit{
  padding:0 clamp(11px,1.4vw,20px);
  border-left:1px solid var(--sm-line);
}
.fp-pit:first-child{border-left:0;padding-left:0}
.fp-pit:last-child{padding-right:0}
.fp-pit-n{
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--sm-hi);
  opacity:.6;
  font-variant-numeric:tabular-nums;
}
.fp-pit-h{
  margin-top:8px;
  font-size:14px;
  font-weight:700;
  line-height:1.4;
  letter-spacing:.05em;
  color:#cfe9ff;
}
.fp-pit-p{
  margin-top:7px;
  font-size:12.5px;
  line-height:1.72;
  letter-spacing:.01em;
  color:var(--sm-mute);
}

/* ---------- 收尾 ---------- */
.fp-end{
  margin-top:clamp(34px,4.2vw,48px);
  padding-top:16px;
  border-top:1px solid var(--sm-line-soft);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:6px 20px;
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--sm-mute);
}
.fp-end b{font-weight:500;color:#a8c6de}

/* ---------- 页脚 ---------- */
.fp-foot{
  margin-top:clamp(30px,4vw,48px);
  border-top:1px solid var(--sm-line-soft);
}
.fp-sea{
  height:clamp(52px,7vw,84px);
  margin-top:6px;
  color:var(--sm-hi);
  opacity:.34;
  pointer-events:none;
}
.fp-sea svg{display:block;width:100%;height:100%}
.fp-foot-in{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  padding-top:18px;
  padding-bottom:28px;
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--sm-mute);
}
.fp-foot-nav ul{display:flex;flex-wrap:wrap;gap:18px}
.fp-foot-nav a{color:#a8c0d6}
.fp-foot-nav a:hover{color:var(--sm-hi)}
.fp-cpr{display:flex;flex-wrap:wrap;gap:6px 18px}
.fp-cpr span{white-space:nowrap}
.fp-cpr i{font-style:normal;color:rgba(139,166,191,.7);margin-right:6px}

/* ---------- 动效 ---------- */
@keyframes smGullDrift{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-5px)}
}
@media (prefers-reduced-motion:no-preference){
  .fp-gull-a{animation:smGullDrift 7s ease-in-out infinite}
  .fp-gull-b{animation:smGullDrift 9s ease-in-out infinite;animation-delay:-3s}
  .fp-gull-c{animation:smGullDrift 11s ease-in-out infinite;animation-delay:-5s}
  .fp-nav a,.fp-foot-nav a{transition:color .16s ease}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}

/* ============================================================
   响应式：1200 / 768 / 375
   ============================================================ */
@media (max-width:880px){
  .fp-band-grid{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:clamp(18px,3vw,26px)}
  .fp-band-cell{border-left:1px solid var(--sm-line-soft);padding-left:clamp(14px,2.4vw,20px)}
  .fp-band-cell:nth-child(odd){border-left:0;padding-left:0}
  .fp-band-cell:nth-child(n+3){
    border-top:1px solid var(--sm-line-soft);
    padding-top:clamp(16px,2.6vw,22px);
  }
  .fp-band-n{max-width:34ch}
}

@media (max-width:820px){
  .fp-pits-grid{grid-template-columns:minmax(0,1fr);gap:0}
  .fp-pit{
    border-left:0;
    padding:16px 0 0;
    margin-top:16px;
    border-top:1px solid var(--sm-line-soft);
  }
  .fp-pit:first-child{margin-top:0;padding-top:0;border-top:0}
  .fp-pit:last-child{padding-right:0}
  .fp-pit-p{max-width:52ch;font-size:13px}
}

@media (max-width:760px){
  .fp-h1{font-size:clamp(38px,9.6vw,50px)}
  .fp-lead{max-width:36ch}
  .fp-tl-graph{height:clamp(120px,22vw,160px)}
  .fp-tl-act{gap:1.5px}
  .fp-quote-t{font-size:clamp(16px,3.6vw,18px);line-height:1.78}
  .fp-quote-in{padding-top:34px;padding-bottom:34px}
  .fp-p{
    font-size:14.5px;
  }
}

@media (max-width:620px){
  .fp-head-in{
    flex-wrap:wrap;
    gap:2px 12px;
    padding-top:12px;
    padding-bottom:6px;
    min-height:0;
  }
  .fp-brand{flex:1 1 100%}
  .fp-brand-sub,
  .fp-brand-dot{display:none}
  .fp-brand-name{font-size:15px;white-space:nowrap;letter-spacing:.04em}
  .fp-nav{flex:1 1 100%;margin-left:-10px}
  .fp-nav ul{gap:0;flex-wrap:wrap}
  .fp-nav a{font-size:13px;padding:5px 10px}
  .fp-kicker{padding-right:0}
  .fp-gulls{top:78px;width:104px;opacity:.5}
  .fp-facts{gap:4px 18px}
  .fp-ask{grid-template-columns:minmax(0,1fr);row-gap:8px}
  .fp-ask-k span{display:none}
  /* 窄屏上两侧发丝线会贴住文字，直接撤掉，靠字号差做层级 */
  .fp-quote-in::before,
  .fp-quote-in::after{display:none}
  .fp-foot-in{flex-direction:column;align-items:flex-start;gap:10px}
}

@media (max-width:520px){
  /* 窄屏：数据带从 4 列变 1 列，数字在左、标签在右，仍是一条"带" */
  .fp-band-grid{grid-template-columns:minmax(0,1fr);row-gap:0}
  .fp-band-cell{
    display:grid;
    grid-template-columns:auto minmax(0,1fr);
    grid-template-areas:
      "v k"
      "v n";
    column-gap:16px;
    border-left:0;
    padding:16px 0 0;
    margin-top:16px;
    border-top:1px solid var(--sm-line-soft);
  }
  .fp-band-cell:first-child{margin-top:0;padding-top:0;border-top:0}
  .fp-band-k{grid-area:k;align-self:end;white-space:normal}
  .fp-band-v{grid-area:v;align-self:center;margin-top:0;font-size:34px}
  .fp-band-n{grid-area:n;margin-top:4px;max-width:38ch}
  .fp-band-u{transform:none}

  .fp-idx{letter-spacing:.12em}
  .fp-h2{letter-spacing:.04em}
  /* 微标签在手机上没有增信作用，去掉，让标题独占一行 */
  .fp-role{display:none}
  .fp-shead{grid-template-columns:auto minmax(0,1fr);row-gap:6px}
  .fp-tl-axis{font-size:11px;letter-spacing:.06em}
  /* 轴只剩三个刻度，避免 10/30 与 11/08 撞在一起 */
  .fp-tl-axis .t4{display:none}
  .fp-tl-gap-t{letter-spacing:.22em;font-size:11px}
  .fp-col > * + *{margin-top:22px}
  .fp-col > .fp-sec{margin-top:38px}
  .fp-col > .fp-bleed{margin-top:36px}
  .fp-col > .fp-bleed + *{margin-top:36px}
}

/* ============================================================
   作用域基础层（原设计里的 html / body 规则，收进 .sect-post）
   ============================================================ */
.sect-post{
  margin:0;
  background:linear-gradient(180deg,#04101f 0%,#07182c 46%,#0a2038 100%);
  color:var(--sm-txt);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  font-size:16px;
  line-height:1.7;
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:clip;
  position:relative;
  isolation:isolate;
}
.sect-post *,.sect-post *::before,.sect-post *::after{box-sizing:border-box}
.sect-post h1,.sect-post h2,.sect-post h3,.sect-post p,.sect-post ul,.sect-post ol,.sect-post li{margin:0;padding:0}
.sect-post ul,.sect-post ol{list-style:none}
.sect-post a{color:inherit;text-decoration:none}
.sect-post ::selection{background:rgba(127,216,255,.26);color:#f2f8ff}
/* ============================================================
   渲染层桥接：PHP 输出的原生 HTML 继承这套语言的排版
   ============================================================ */
.sect-post .fp-body > p,
.sect-post .fp-intro > p{
  font-size:14.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--sm-txt);
}
.sect-post .fp-body > p + p,
.sect-post .fp-intro > p + p{margin-top:.95em}

.sect-post .fp-body > h3{
  margin-top:1.7em;
  margin-bottom:.6em;
  font-size:15px;
  font-weight:700;
  line-height:1.5;
  letter-spacing:.05em;
  color:#cfe9ff;
}

.sect-post .fp-body > ul,
.sect-post .fp-body > ol{
  margin-top:.9em;
  padding-left:1.15em;
  list-style:revert;
}
.sect-post .fp-body li{
  margin-top:.42em;
  font-size:14.5px;
  line-height:1.82;
}
.sect-post .fp-body li::marker{color:rgba(127,216,255,.6)}

.sect-post .fp-body blockquote{
  margin:1.2em 0;
  padding-left:14px;
  border-left:2px solid rgba(127,216,255,.34);
  color:#cfe9ff;
}

.sect-post .fp-body strong,
.sect-post .fp-intro strong{color:#eaf6ff;font-weight:700}

.sect-post .fp-body a,
.sect-post .fp-intro a{
  color:var(--sm-hi);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.sect-post .fp-body code{
  padding:1px 5px;
  border-radius:var(--sm-rad-s);
  background:rgba(127,216,255,.10);
  color:#bfe6ff;
  font-size:.94em;
}
.sect-post .fp-body img{max-width:100%;height:auto;border-radius:var(--sm-rad-s)}

/* 数据带可变列数 */
.sect-post .fp-band-c2{grid-template-columns:repeat(2,minmax(0,1fr))}
.sect-post .fp-band-c3{grid-template-columns:repeat(3,minmax(0,1fr))}
.sect-post .fp-band-c5{grid-template-columns:repeat(5,minmax(0,1fr))}

@media (max-width:760px){
  .sect-post .fp-band-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sect-post .fp-band-cell{padding-top:14px}
  .sect-post .fp-band-cell:nth-child(odd){border-left:0}
}
@media (max-width:430px){
  .sect-post .fp-band-grid{grid-template-columns:1fr}
  .sect-post .fp-band-cell{border-left:0;border-top:1px solid var(--sm-line-soft);padding-top:12px}
  .sect-post .fp-band-cell:first-child{border-top:0;padding-top:0}
}
/* ============================================================
   渲染层修正（对接真实 DOM 后补）
   ============================================================ */

/* 1) 光晕只覆盖文章区，不要 fixed 盖住站点导航 */
.sect-post{position:relative}
.sect-post .fp-sky{
  position:absolute;
  inset:0;
  z-index:0;
}

/* 2) 时间轴：单组柱状条要撑满，否则被压成 1px */
.sect-post .fp-tl-act{flex:1 1 auto;min-width:0}
.sect-post .fp-tl-graph{gap:0}

/* 3) 时间轴刻度：三段分布到左中右 */
.sect-post .fp-tl-axis{position:relative;display:block}
.sect-post .fp-tl-axis span{
  position:absolute;
  top:0;
  white-space:nowrap;
}
.sect-post .fp-tl-axis span:nth-child(1){left:0}
.sect-post .fp-tl-axis span:nth-child(2){left:50%;transform:translateX(-50%)}
.sect-post .fp-tl-axis span:nth-child(3){right:0}

/* 4) 章节头：确保三列语义（编号 / 标题 / 字数） */
.sect-post .fp-shead > .fp-idx{grid-column:1}
.sect-post .fp-shead > .fp-h2{grid-column:2}
.sect-post .fp-shead > .fp-role{grid-column:3;justify-self:end}