/* ==========================================================================
   旅途记录 · 共用样式
   深夜航班主题。后续节点页改 :root 里的 --accent 即可换色调。
   ========================================================================== */

:root{
  --bg:        #0a0e17;
  --bg-soft:   #101725;
  --bg-card:   #141d2e;
  --line:      #22304a;
  --text:      #e8eef7;
  --text-dim:  #9fb0c9;
  --text-faint:#66788f;
  --accent:    #ffb347;   /* 窗外城市灯海的橙 */
  --accent-2:  #4dd0e1;   /* 仪表盘的青 */
  --shadow:    0 18px 50px rgba(0,0,0,.55);
  --maxw:      760px;
}

*{box-sizing:border-box;margin:0;padding:0}

/* 底色放在 html 上，body 保持透明：
   body 的背景会传播成画布背景，那样会把 z-index 为负的星空伪元素盖住。
   放在 html 上，body::before / ::after 才能浮在底色之上、正文之下。 */
html{
  -webkit-text-size-adjust:100%;
  background:var(--bg);
}

body{
  background:transparent;
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  line-height:1.9;
  font-size:16px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

img{ display:block; max-width:100%; }
a{ color:inherit; }

/* 夜空：固定在最底层，纯 CSS 光斑，不跑 JS 也不重绘 */
body::before{
  content:"";
  position:fixed; inset:0; z-index:-2;
  background:
    radial-gradient(1100px 620px at 78% -8%,  rgba(255,179,71,.10), transparent 62%),
    radial-gradient(900px 560px at 8% 108%,   rgba(77,208,225,.09), transparent 60%),
    radial-gradient(700px 460px at 50% 42%,   rgba(60,90,150,.10),  transparent 65%),
    var(--bg);
}
/* 极淡的星点，用重复径向渐变铺，避免 canvas */
body::after{
  content:"";
  position:fixed; inset:0; z-index:-1; pointer-events:none;
  opacity:.5;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 18%, rgba(255,255,255,.55), transparent),
    radial-gradient(1.2px 1.2px at 68% 9%,  rgba(255,255,255,.42), transparent),
    radial-gradient(1.6px 1.6px at 84% 34%, rgba(255,255,255,.5),  transparent),
    radial-gradient(1.1px 1.1px at 32% 56%, rgba(255,255,255,.34), transparent),
    radial-gradient(1.5px 1.5px at 52% 78%, rgba(255,255,255,.4),  transparent),
    radial-gradient(1.2px 1.2px at 8%  88%, rgba(255,255,255,.32), transparent),
    radial-gradient(1.3px 1.3px at 92% 72%, rgba(255,255,255,.36), transparent),
    radial-gradient(1.1px 1.1px at 42% 28%, rgba(255,255,255,.28), transparent);
}

.wrap{ width:100%; max-width:var(--maxw); margin:0 auto; padding:0 22px; }

/* ---------- 封面 ---------- */
.cover{
  position:relative;
  min-height:100svh;
  display:flex; flex-direction:column;
  align-items:center; justify-content:center;
  text-align:center;
  padding:80px 24px 96px;
}
.cover .kicker{
  font-size:12px; letter-spacing:.42em; text-indent:.42em;
  color:var(--accent); text-transform:uppercase; margin-bottom:26px;
}
.cover h1{
  font-size:clamp(38px,11vw,64px);
  font-weight:700; letter-spacing:.16em; text-indent:.16em;
  line-height:1.25;
  text-shadow:0 0 40px rgba(255,179,71,.25);
}
.cover .sub{
  margin-top:20px; color:var(--text-dim);
  font-size:clamp(14px,3.6vw,17px); letter-spacing:.1em;
}
.cover .meta{
  margin-top:14px; color:var(--text-faint);
  font-size:13px; letter-spacing:.22em;
}
/* 标题下那条发光细线 */
.cover .rule{
  width:64px; height:1px; margin:34px auto 0;
  background:linear-gradient(90deg,transparent,var(--accent),transparent);
  position:relative;
}
.cover .rule::after{
  content:""; position:absolute; left:50%; top:50%;
  width:6px; height:6px; margin:-3px 0 0 -3px; border-radius:50%;
  background:var(--accent); box-shadow:0 0 14px 4px rgba(255,179,71,.6);
}

.btn-enter{
  margin-top:46px;
  display:inline-flex; align-items:center; gap:10px;
  padding:15px 38px; border-radius:999px;
  background:linear-gradient(135deg,rgba(255,179,71,.20),rgba(255,179,71,.06));
  border:1px solid rgba(255,179,71,.5);
  color:var(--accent); font-size:15px; letter-spacing:.14em;
  cursor:pointer; font-family:inherit;
  transition:transform .25s, box-shadow .25s, background .25s;
  -webkit-tap-highlight-color:transparent;
}
.btn-enter:hover{
  transform:translateY(-2px);
  box-shadow:0 10px 30px rgba(255,179,71,.22);
  background:linear-gradient(135deg,rgba(255,179,71,.3),rgba(255,179,71,.1));
}
.btn-enter .note{ font-size:12px; color:var(--text-faint); letter-spacing:.08em; }

.scroll-hint{
  position:absolute; bottom:26px; left:50%; transform:translateX(-50%);
  color:var(--text-faint); font-size:11px; letter-spacing:.3em;
  animation:floaty 2.6s ease-in-out infinite;
}
@keyframes floaty{ 0%,100%{opacity:.35;transform:translate(-50%,0)} 50%{opacity:.9;transform:translate(-50%,6px)} }

/* ---------- 幕 ---------- */
.acts{ padding:20px 0 40px; }

/* 只设纵向内边距。写成 padding:64px 0 30px 会把 .wrap 的左右内边距覆盖掉，
   而 .act 在样式表里靠后，优先级相同时后者胜 —— 正文会顶到屏幕边上。 */
.act{ padding-top:64px; padding-bottom:30px; position:relative; }

.act-head{ margin-bottom:34px; position:relative; }
.act-no{
  font-size:13px; letter-spacing:.4em; text-indent:.4em;
  color:var(--accent); opacity:.85; margin-bottom:10px;
}
.act-head h2{
  font-size:clamp(25px,6.6vw,34px);
  font-weight:700; letter-spacing:.06em; line-height:1.4;
}
.act-when{
  display:inline-flex; align-items:center; gap:9px;
  margin-top:14px; padding:5px 14px 5px 11px;
  border:1px solid var(--line); border-radius:999px;
  font-size:12px; color:var(--text-dim); letter-spacing:.1em;
  font-variant-numeric:tabular-nums;
}
.act-when::before{
  content:""; width:6px; height:6px; border-radius:50%;
  background:var(--accent); box-shadow:0 0 10px 2px rgba(255,179,71,.55);
  flex:none;
}

.prose{ color:var(--text-dim); }
.prose p{ margin-bottom:18px; }
.prose p.lead{
  font-size:clamp(17px,4.4vw,19px);
  color:var(--text); line-height:1.95;
}
.prose strong{ color:var(--accent); font-weight:600; }
.prose em{ font-style:normal; color:var(--accent-2); }

/* ---------- 照片 ---------- */
.shots{ margin:30px 0 8px; display:grid; gap:14px; }
.shots.two{ grid-template-columns:1fr 1fr; }

.frame{
  position:relative; display:block; width:100%;
  border:none; padding:0; background:var(--bg-card);
  border-radius:14px; overflow:hidden; cursor:zoom-in;
  box-shadow:var(--shadow);
  -webkit-tap-highlight-color:transparent;
  aspect-ratio:3/4;
}
.frame img{
  width:100%; height:100%; object-fit:cover;
  transition:transform .7s cubic-bezier(.2,.7,.3,1), filter .4s;
  filter:saturate(.96);
}
.frame:hover img{ transform:scale(1.045); filter:saturate(1.06); }
.frame::after{  /* 底边压暗，让图与暗背景咬合 */
  content:""; position:absolute; inset:auto 0 0 0; height:38%;
  background:linear-gradient(180deg,transparent,rgba(10,14,23,.6));
  pointer-events:none;
}
.frame .tag{
  position:absolute; left:12px; bottom:10px; z-index:1;
  font-size:12px; color:rgba(255,255,255,.82); letter-spacing:.06em;
  text-shadow:0 1px 8px rgba(0,0,0,.8);
}

/* 说明文字 */
.caption{
  margin-top:10px; font-size:13px; color:var(--text-faint);
  letter-spacing:.04em; line-height:1.7;
}

/* 单张大图 */
.shots.hero .frame{ aspect-ratio:3/4; }
@media (min-width:640px){
  .shots.hero .frame{ aspect-ratio:4/5; }
}

/* 横幅：横构图的景（峡谷、全景、桌面）别硬裁成 3:4，会把两头切掉。
   默认一列通栏，两张就上下叠着。 */
.shots.wide .frame{ aspect-ratio:4/3; }
@media (min-width:640px){
  .shots.wide .frame{ aspect-ratio:3/2; }
}

/* 横向胶片条 */
.strip{
  display:flex; gap:10px; overflow-x:auto; padding:4px 22px 14px;
  margin:0 -22px; scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch; scrollbar-width:none;
}
.strip::-webkit-scrollbar{ display:none; }
.strip .frame{
  flex:0 0 128px; aspect-ratio:3/4; scroll-snap-align:start;
  border-radius:10px; box-shadow:0 8px 22px rgba(0,0,0,.4);
}
.strip .frame::after{ display:none; }

/* ---------- 占位（照片还没到的段落） ----------
   留一个虚线框，明确标出"这里以后要补东西"，比直接空着好认。 */
.ph{ margin:30px 0 8px; }
.ph-inner{
  border:1px dashed var(--line); border-radius:14px;
  padding:46px 24px; text-align:center;
  background:rgba(20,29,46,.42);
}
.ph-mark{
  display:block; font-size:24px; line-height:1;
  color:var(--text-faint); opacity:.65; margin-bottom:14px;
}
.ph-title{
  font-size:15px; color:var(--text-dim); letter-spacing:.1em;
}
.ph-note{
  margin-top:9px; font-size:12.5px; color:var(--text-faint);
  letter-spacing:.06em; line-height:1.8;
}

/* ---------- 幕间分隔 ---------- */
.act-divider{
  display:flex; align-items:center; gap:14px;
  margin:46px 0 0; color:var(--text-faint);
}
.act-divider::before,.act-divider::after{
  content:""; height:1px; flex:1;
  background:linear-gradient(90deg,transparent,var(--line),transparent);
}
.act-divider span{ font-size:11px; letter-spacing:.34em; }

/* ---------- 滚动淡入 ---------- */
.reveal{ opacity:0; transform:translateY(26px); }
.reveal.in{
  opacity:1; transform:none;
  transition:opacity .9s ease, transform .9s cubic-bezier(.2,.7,.3,1);
}
@media (prefers-reduced-motion:reduce){
  .reveal{ opacity:1; transform:none; }
  .frame img{ transition:none; }
  .scroll-hint{ animation:none; }
}

/* ---------- 页脚 ---------- */
.foot{
  margin-top:70px; padding:56px 22px 120px;
  text-align:center; border-top:1px solid var(--line);
}
.foot .sign{ font-size:15px; color:var(--text-dim); letter-spacing:.1em; }
.foot .date{ margin-top:8px; font-size:12px; color:var(--text-faint); letter-spacing:.2em; }
.foot-link{
  display:inline-flex; align-items:center; gap:8px;
  margin-top:28px; padding:12px 26px; border-radius:999px;
  border:1px solid var(--line); color:var(--text-dim);
  text-decoration:none; font-size:14px; letter-spacing:.1em;
  transition:border-color .25s,color .25s,transform .25s;
}
.foot-link:hover{ border-color:var(--accent); color:var(--accent); transform:translateY(-2px); }

/* ---------- 灯箱 ---------- */
.lightbox{
  position:fixed; inset:0; z-index:200;
  background:rgba(6,9,15,.96);
  display:none; flex-direction:column;
  overscroll-behavior:contain;
}
.lightbox.on{ display:flex; }
.lb-stage{
  flex:1; display:flex; align-items:center; justify-content:center;
  padding:56px 16px 12px; min-height:0;
}
.lb-stage img{
  max-width:100%; max-height:100%;
  object-fit:contain; border-radius:8px;
  box-shadow:0 24px 70px rgba(0,0,0,.7);
}
.lb-cap{
  padding:12px 24px 6px; text-align:center;
  font-size:13px; color:var(--text-dim); letter-spacing:.04em;
  min-height:24px;
}
.lb-count{
  text-align:center; padding:0 0 22px;
  font-size:12px; color:var(--text-faint); letter-spacing:.2em;
  font-variant-numeric:tabular-nums;
}
.lb-btn{
  position:absolute; top:50%; transform:translateY(-50%);
  width:46px; height:46px; border-radius:50%;
  background:rgba(255,255,255,.07); border:1px solid rgba(255,255,255,.16);
  color:#fff; font-size:20px; cursor:pointer; line-height:1;
  display:flex; align-items:center; justify-content:center;
  -webkit-tap-highlight-color:transparent;
  transition:background .2s;
}
.lb-btn:hover{ background:rgba(255,255,255,.16); }
.lb-prev{ left:10px; } .lb-next{ right:10px; }
.lb-close{
  position:absolute; top:14px; right:14px;
  width:40px; height:40px; border-radius:50%;
  background:rgba(255,255,255,.07); border:1px solid rgba(255,255,255,.16);
  color:#fff; font-size:18px; cursor:pointer; line-height:1;
  display:flex; align-items:center; justify-content:center;
}
@media (max-width:520px){
  .lb-btn{ width:40px; height:40px; font-size:17px; }
  .lb-prev{ left:6px; } .lb-next{ right:6px; }
}

/* ---------- BGM 播放器 ---------- */
.bgm{
  position:fixed; right:16px; bottom:18px; z-index:150;
  display:flex; flex-direction:column; align-items:flex-end; gap:10px;
}
.bgm-toggle{
  display:inline-flex; align-items:center; gap:9px;
  padding:10px 16px; border-radius:999px;
  background:rgba(20,29,46,.92); backdrop-filter:blur(12px);
  border:1px solid var(--line); color:var(--text-dim);
  font-size:13px; font-family:inherit; cursor:pointer;
  letter-spacing:.08em; box-shadow:var(--shadow);
  -webkit-tap-highlight-color:transparent;
  transition:border-color .25s,color .25s;
}
.bgm-toggle:hover{ border-color:var(--accent); color:var(--accent); }
.bgm-toggle.playing{ border-color:rgba(255,179,71,.55); color:var(--accent); }

/* 三条跳动的音柱 */
.bars{ display:inline-flex; align-items:flex-end; gap:2px; height:13px; }
.bars i{
  width:2.5px; background:currentColor; border-radius:2px; height:4px;
  display:block;
}
.bgm-toggle.playing .bars i{ animation:eq .9s ease-in-out infinite; }
.bgm-toggle.playing .bars i:nth-child(2){ animation-delay:.18s; }
.bgm-toggle.playing .bars i:nth-child(3){ animation-delay:.36s; }
@keyframes eq{ 0%,100%{height:4px} 50%{height:13px} }

.bgm-panel{
  width:min(272px,calc(100vw - 32px));
  background:rgba(20,29,46,.96); backdrop-filter:blur(14px);
  border:1px solid var(--line); border-radius:16px;
  padding:12px; box-shadow:var(--shadow);
  display:none;
}
.bgm-panel.on{ display:block; animation:pop .22s ease; }
@keyframes pop{ from{opacity:0;transform:translateY(8px)} to{opacity:1;transform:none} }
.bgm-panel h4{
  font-size:11px; color:var(--text-faint); font-weight:500;
  letter-spacing:.24em; margin:2px 0 10px 4px;
}
.bgm-track{
  display:block; width:100%; text-align:left;
  padding:9px 11px; border-radius:9px; border:none;
  background:transparent; color:var(--text-dim);
  font-size:13px; font-family:inherit; cursor:pointer;
  line-height:1.5; transition:background .18s,color .18s;
  -webkit-tap-highlight-color:transparent;
}
.bgm-track:hover{ background:rgba(255,255,255,.05); color:var(--text); }
.bgm-track.on{ background:rgba(255,179,71,.13); color:var(--accent); }
.bgm-track small{ display:block; font-size:11px; color:var(--text-faint); margin-top:1px; }

@media (max-width:520px){
  .bgm{ right:12px; bottom:12px; }
}

/* ---------- 线路页 ---------- */
.route-head{
  padding:76px 22px 26px; text-align:center;
}
.route-head .kicker{
  font-size:12px; letter-spacing:.42em; text-indent:.42em;
  color:var(--accent); margin-bottom:20px;
}
.route-head h1{
  font-size:clamp(30px,8.4vw,44px); font-weight:700;
  letter-spacing:.12em; text-indent:.12em; line-height:1.35;
}
.route-head p{
  margin-top:16px; color:var(--text-dim); font-size:14px; letter-spacing:.08em;
}

.route-map{
  max-width:var(--maxw); margin:0 auto; padding:10px 22px 0;
}
.route-map svg{ width:100%; height:auto; display:block; overflow:visible; }

/* 路径绘制动画：dasharray/dashoffset 由 trip.js 按 getTotalLength() 实测设置 */
.route-path{
  fill:none; stroke-linecap:round;
  transition:stroke-dashoffset 2.8s cubic-bezier(.4,0,.2,1);
}
.route-path.ready{ stroke-dashoffset:0 !important; }
@media (prefers-reduced-motion:reduce){
  .route-path{ transition:none; }
}

.node{ cursor:default; }
.node.live{ cursor:pointer; }

.node .halo{
  fill:none; stroke:var(--accent); stroke-width:1.4;
  opacity:0; transform-box:fill-box; transform-origin:center;
}
.node.live .halo{ animation:ping 2.8s ease-out infinite; }
@keyframes ping{
  0%{ opacity:.75; transform:scale(.7); }
  70%,100%{ opacity:0; transform:scale(2.5); }
}
.node .dot{ transition:r .25s; }
.node.live:hover .dot{ r:11; }

.node .n-label{
  fill:var(--text-dim); font-size:15px; font-family:inherit;
  letter-spacing:.05em;
}
.node.live .n-label{ fill:var(--text); font-weight:600; }
.node .n-date{
  fill:var(--text-faint); font-size:11.5px; font-family:inherit;
  letter-spacing:.12em;
}
.node.live:hover .n-label{ fill:var(--accent); }
.node.locked{ opacity:.42; }

/* SVG 里的“敬请期待”小签 */
.node .n-soon{ fill:var(--text-faint); font-size:10.5px; letter-spacing:.16em; }

.route-foot{
  text-align:center; padding:30px 22px 90px;
}
.route-tip{
  font-size:12.5px; color:var(--text-faint); letter-spacing:.08em;
}
/* 置灰节点被点时冒出来的提示 */
.toast{
  position:fixed; left:50%; bottom:38px; transform:translate(-50%,16px);
  background:rgba(20,29,46,.97); border:1px solid var(--line);
  color:var(--text-dim); font-size:13px; letter-spacing:.06em;
  padding:11px 20px; border-radius:999px; z-index:300;
  opacity:0; pointer-events:none; transition:opacity .3s,transform .3s;
  box-shadow:var(--shadow);
}
.toast.on{ opacity:1; transform:translate(-50%,0); }

/* 窄屏降级：文字时间轴 */
.route-list{
  max-width:560px; margin:14px auto 0; padding:0 22px;
}
.tl-item{
  display:flex; gap:16px; padding:15px 0;
  border-bottom:1px solid rgba(34,48,74,.6);
}
.tl-idx{
  flex:none; width:30px; height:30px; border-radius:50%;
  border:1px solid var(--line); color:var(--text-faint);
  display:flex; align-items:center; justify-content:center;
  font-size:12.5px; font-variant-numeric:tabular-nums;
}
.tl-item.live .tl-idx{
  border-color:var(--accent); color:var(--accent);
  box-shadow:0 0 16px rgba(255,179,71,.25);
}
.tl-body h3{
  font-size:15.5px; font-weight:600; color:var(--text-faint);
  letter-spacing:.05em; line-height:1.6;
}
.tl-item.live .tl-body h3{ color:var(--text); }
.tl-body p{ font-size:12.5px; color:var(--text-faint); letter-spacing:.08em; margin-top:3px; }
.tl-item.live{ cursor:pointer; }
.tl-item.live:hover .tl-body h3{ color:var(--accent); }

@media (max-width:640px){
  .route-map{ display:none; }   /* 窄屏只看文字时间轴 */
}
@media (min-width:641px){
  .route-list{ display:none; }
}

/* ==========================================================================
   扁平时间轴（海西生态廊道页）
   和站点其它页的"暗底 + 发光"刻意不同：直角、细线、无阴影，让时间轴本身
   当结构。视频用 preload="none"，没点播放之前只加载封面图，所以页面很轻。
   ========================================================================== */
.ftl-head{
  max-width:var(--maxw); margin:0 auto;
  padding:72px 22px 30px;
}
.ftl-head .kicker{
  font-size:11.5px; letter-spacing:.42em; text-indent:.42em;
  color:var(--accent); margin-bottom:18px;
}
.ftl-head h1{
  font-size:clamp(30px,8.4vw,44px); font-weight:700;
  letter-spacing:.1em; line-height:1.3;
}
.ftl-head .sub{
  margin-top:14px; color:var(--text-dim);
  font-size:14px; letter-spacing:.08em;
}
.ftl-head .stat{
  margin-top:10px; color:var(--text-faint);
  font-size:12.5px; letter-spacing:.14em;
  font-variant-numeric:tabular-nums;
}

.ftl{
  max-width:var(--maxw); margin:0 auto;
  padding:30px 22px 20px;
}
.ftl-row{
  display:grid; grid-template-columns:46px 1fr; column-gap:16px;
}
.ftl-mark{
  grid-column:1; text-align:right; padding-top:2px;
  font-size:11.5px; color:var(--text-faint); letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
}
.ftl-row.on .ftl-mark{ color:var(--accent); }
.ftl-body{
  grid-column:2; position:relative;
  /* grid 子项默认 min-width:auto，不肯缩到内容宽度以下。
     里面的 .ftl-strip 是个横向滚动条（子项 flex:0 0 116px 不收缩），
     会把这一列整个撑宽、页面就横向滚了。必须显式归零。 */
  min-width:0;
  border-left:1px solid var(--line);
  padding:0 0 38px 20px;
}
.ftl-body::before{                 /* 轴上的方点，直角，不发光 */
  content:""; position:absolute; left:-3px; top:7px;
  width:5px; height:5px; background:var(--text-faint);
}
.ftl-row.on .ftl-body::before{ background:var(--accent); }
.ftl-row:last-child .ftl-body{     /* 末尾把轴线收掉 */
  border-left-color:transparent; padding-bottom:0;
}

.ftl-t{
  font-size:clamp(16px,4.4vw,18px); font-weight:600;
  color:var(--text); letter-spacing:.04em; line-height:1.6;
}
.ftl-p{
  margin-top:9px; font-size:14px; color:var(--text-dim);
  line-height:1.85;
}
.ftl-p strong{ color:var(--accent); font-weight:600; }

.ftl-media{ margin-top:14px; display:grid; gap:8px; }
.ftl-media.two{ grid-template-columns:1fr 1fr; }

.ftl-shot{
  display:block; width:100%; padding:0; cursor:zoom-in;
  border:1px solid var(--line); background:#0c1220; overflow:hidden;
  -webkit-tap-highlight-color:transparent;
}
.ftl-shot img{ display:block; width:100%; height:auto; }
.ftl-media.two .ftl-shot{ aspect-ratio:3/4; }
.ftl-media.two .ftl-shot img{ height:100%; object-fit:cover; }

/* 时间轴里的胶片条。和 .strip 一个思路，但 .strip 的 `margin:0 -22px`
   是按 .wrap 的 22px 内边距算的，套进 .ftl-body 会甩出去，所以单独来一套。 */
.ftl-strip{
  display:flex; gap:8px; overflow-x:auto;
  margin:14px 0 0; padding-bottom:8px;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch; scrollbar-width:none;
}
.ftl-strip::-webkit-scrollbar{ display:none; }
.ftl-strip .ftl-shot{
  flex:0 0 116px; aspect-ratio:3/4; scroll-snap-align:start;
}
.ftl-strip .ftl-shot img{ height:100%; object-fit:cover; }
.ftl-more{
  margin-top:6px; font-size:12.5px;
  color:var(--text-faint); letter-spacing:.04em;
}

/* 时间轴里分段（环洱海那页分「上午 / 下午」）。
   左边距 62px = 标记列 46px + column-gap 16px，和 .ftl-body 对齐。 */
.ftl-sep{
  display:flex; align-items:center; gap:12px;
  margin:4px 0 22px 62px;
  color:var(--accent);
}
.ftl-sep span{
  font-size:12px; letter-spacing:.26em; white-space:nowrap;
}
.ftl-sep::after{
  content:""; flex:1; height:1px;
  background:linear-gradient(90deg, var(--line), transparent);
}

.ftl-vid{
  position:relative; display:block; width:100%;
  border:1px solid var(--line); background:#000; overflow:hidden;
}
.ftl-vid video{ display:block; width:100%; height:100%; object-fit:contain; background:#000; }
.ftl-vid.land{ aspect-ratio:16/9; }
.ftl-vid.port{ aspect-ratio:9/16; max-width:282px; }   /* 竖屏别占满，太长了 */

/* 视频角标，开播后由脚本摘掉 */
.ftl-vid::after{
  content:"▶ 视频"; position:absolute; right:7px; top:7px;
  font-size:10.5px; letter-spacing:.1em; color:rgba(255,255,255,.8);
  background:rgba(0,0,0,.55); padding:2px 7px; pointer-events:none;
  transition:opacity .25s;
}
.ftl-vid.playing::after{ opacity:0; }

.ftl-foot{
  max-width:var(--maxw); margin:0 auto;
  padding:26px 22px 90px;
  border-top:1px solid var(--line);
}
.ftl-foot p{
  font-size:12.5px; color:var(--text-faint); letter-spacing:.06em;
}

/* ==========================================================================
   手机 / 微信内置浏览器适配（样式部分）
   微信 Android 走 X5 内核、iOS 走 WKWebView，版本都偏旧，这里只用它们认的写法。
   视频的播放属性、分享 meta 在各页 HTML 里，不在这里。
   ========================================================================== */

/* 刘海屏安全区。viewport 已经是 viewport-fit=cover，这里把被盖住的边距补回来。
   用 calc() 不用 max() —— X5 内核版本旧，max() 不一定支持。 */
@supports (padding: env(safe-area-inset-bottom)) {
  .cover{ padding-top:calc(80px + env(safe-area-inset-top)); }
  .bgm{
    right:calc(16px + env(safe-area-inset-right));
    bottom:calc(18px + env(safe-area-inset-bottom));
  }
  @media (max-width:520px){
    .bgm{
      right:calc(12px + env(safe-area-inset-right));
      bottom:calc(12px + env(safe-area-inset-bottom));
    }
  }
  .toast{ bottom:calc(38px + env(safe-area-inset-bottom)); }
  .foot{ padding-bottom:calc(120px + env(safe-area-inset-bottom)); }
  .route-foot{ padding-bottom:calc(90px + env(safe-area-inset-bottom)); }
  .ftl-foot{ padding-bottom:calc(90px + env(safe-area-inset-bottom)); }
  .lb-close{ top:calc(14px + env(safe-area-inset-top)); }
  .lb-count{ padding-bottom:calc(22px + env(safe-area-inset-bottom)); }
}

/* 微信里点按有 300ms 延迟、还会闪一个灰块，交互元素统一关掉 */
button, a, .frame, .ftl-shot, .tl-item, .node.live{
  touch-action:manipulation;
  -webkit-tap-highlight-color:transparent;
}

/* 微信会按用户设的字号去缩放正文，锁住 */
html{
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
}

/* ---------- 逐日解锁：还没到日子的那一整屏遮罩 ---------- */
.locked-screen{
  position:fixed; inset:0; z-index:400;
  background:var(--bg);
  display:flex; align-items:center; justify-content:center;
  padding:24px;
}
.locked-inner{ text-align:center; max-width:340px; }
.locked-mark{
  font-size:30px; color:var(--accent); line-height:1;
  margin-bottom:22px; opacity:.85;
}
.locked-title{
  font-size:clamp(20px,5.4vw,26px); font-weight:700;
  color:var(--text); letter-spacing:.22em; text-indent:.22em;
}
.locked-note{
  margin-top:18px; font-size:14px; color:var(--text-dim);
  letter-spacing:.06em; line-height:2;
}
.locked-note strong{ color:var(--accent); font-weight:600; }
.locked-back{
  display:inline-flex; align-items:center; gap:8px;
  margin-top:32px; padding:11px 24px; border-radius:999px;
  border:1px solid var(--line); color:var(--text-dim);
  text-decoration:none; font-size:13.5px; letter-spacing:.1em;
  transition:border-color .25s,color .25s;
}
.locked-back:hover{ border-color:var(--accent); color:var(--accent); }

/* 路线图上还没解锁的节点（JS 会加上 .locked） */
.node.locked .n-label{ fill:var(--text-faint); font-weight:400; }
.tl-item.locked .tl-body h3{ color:var(--text-faint); }

/* ---------- 收尾（未完待续） ---------- */
.ending{
  max-width:var(--maxw); margin:0 auto;
  padding:56px 22px 8px; text-align:center;
}
.ending-rule{
  width:56px; height:1px; margin:0 auto 34px;
  background:linear-gradient(90deg,transparent,var(--accent),transparent);
  position:relative;
}
.ending-rule::after{
  content:""; position:absolute; left:50%; top:50%;
  width:5px; height:5px; margin:-2.5px 0 0 -2.5px; border-radius:50%;
  background:var(--accent); box-shadow:0 0 12px 3px rgba(255,179,71,.5);
}
.ending-big{
  font-size:clamp(24px,6.6vw,32px); font-weight:700;
  color:var(--text); letter-spacing:.34em; text-indent:.34em;
  line-height:1.6;
}
.ending-sub{
  margin-top:18px; font-size:clamp(14px,3.9vw,16px);
  color:var(--text-dim); letter-spacing:.12em; line-height:1.9;
}
.ending-to{
  margin-top:22px; font-size:14px; color:var(--accent);
  letter-spacing:.2em;
}

/* 回到顶部 */
.totop{
  display:inline-flex; align-items:center; gap:8px;
  margin-top:34px; padding:11px 24px; border-radius:999px;
  border:1px solid var(--line); background:transparent;
  color:var(--text-dim); font-size:13.5px; font-family:inherit;
  letter-spacing:.1em; cursor:pointer; text-decoration:none;
  transition:border-color .25s,color .25s;
}
.totop:hover{ border-color:var(--accent); color:var(--accent); }