.route-intro{--ri-red:#b41522;--ri-gold:#e9b84f;position:fixed;inset:0;z-index:10000;display:grid;grid-template-rows:auto 1fr auto;color:#f7f0df;background:#090b10;overflow:hidden;font-family:"Noto Sans SC",sans-serif;transition:opacity .8s ease,visibility .8s ease}.route-intro.is-leaving{opacity:0;visibility:hidden;pointer-events:none}.route-intro__sky{position:absolute;inset:0;background:radial-gradient(circle at 22% 23%,rgba(123,19,30,.2),transparent 30%),radial-gradient(circle at 80% 74%,rgba(196,146,53,.08),transparent 25%),linear-gradient(120deg,#08090d,#11151e 52%,#08090d)}.route-intro__sky:after{content:"";position:absolute;inset:0;opacity:.25;background-image:radial-gradient(#fff 0.7px,transparent .8px);background-size:41px 41px;mask-image:linear-gradient(to bottom,#000,transparent 80%)}
.route-intro__header,.route-intro__controls,.route-intro__stage,.route-intro__disclaimer{position:relative;z-index:1}.route-intro__header{height:72px;padding:0 3vw;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.12);letter-spacing:.12em}.route-intro__brand{display:flex;gap:12px;align-items:center;font-weight:600}.route-intro__star{display:grid;place-items:center;width:30px;height:30px;color:#651019;background:var(--ri-gold);clip-path:polygon(50% 0,61% 35%,98% 35%,68% 57%,79% 94%,50% 72%,21% 94%,32% 57%,2% 35%,39% 35%)}.route-intro__meta{display:flex;gap:28px;color:#aeb2bb;font:500 11px/1 "Outfit",sans-serif;text-transform:uppercase}
.route-intro__stage{min-height:0;display:grid;grid-template-columns:minmax(0,1.7fr) minmax(330px,.72fr);gap:clamp(20px,3vw,54px);padding:clamp(18px,3vh,34px) 3vw 12px}.route-intro__map-frame{position:relative;min-height:0;border:1px solid rgba(233,184,79,.35);background:#e8e6de;box-shadow:0 30px 80px #000,0 0 60px rgba(180,21,34,.08);overflow:hidden}.route-intro__map,.route-intro__route{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}.route-intro__route{pointer-events:none}.route-intro__path{fill:none;stroke:url(#routeGold);stroke-width:20;stroke-linecap:round;stroke-linejoin:round;filter:url(#routeGlow)}.route-intro__path--shadow{stroke:#3c0710;stroke-width:42;opacity:.35;filter:none}.route-intro__node{fill:#7e111c;stroke:#ffe0a0;stroke-width:9;transform-box:fill-box;transform-origin:center;opacity:0;transition:opacity .2s}.route-intro__node.is-passed{opacity:.75}.route-intro__node.is-current{opacity:1;animation:route-node-pulse 1.4s ease-in-out infinite}.route-intro__head circle:first-child{fill:rgba(180,21,34,.15);stroke:#c51f2d;stroke-width:9;animation:route-head-pulse 1.6s ease-out infinite}.route-intro__head circle:last-child{fill:#ffe09b;stroke:#a3111e;stroke-width:7}.route-intro__map-caption{position:absolute;left:16px;bottom:14px;display:flex;flex-direction:column;padding:8px 12px;color:#282521;background:rgba(248,246,237,.9);border-left:3px solid var(--ri-red);font-size:10px;letter-spacing:.06em}.route-intro__map-caption strong{font-size:13px}
.route-intro__story{align-self:center;max-width:480px}.route-intro__eyebrow{color:var(--ri-gold);font:500 11px/1 "Outfit",sans-serif;letter-spacing:.28em}.route-intro__story h1{margin:18px 0 16px;font-size:clamp(38px,4.5vw,74px);font-weight:300;line-height:1.05;letter-spacing:.04em}.route-intro__story h1 em{color:#d92835;font-style:normal;font-weight:700}.route-intro__scope{max-width:35em;color:#9da2ad;font-size:13px;line-height:1.8}.route-intro__current{margin-top:clamp(24px,5vh,58px);min-height:150px;padding:22px 0;border-top:1px solid rgba(255,255,255,.16);border-bottom:1px solid rgba(255,255,255,.16)}.route-intro__current>span{display:block;color:var(--ri-gold);font:500 11px/1 "Outfit",sans-serif;letter-spacing:.16em}.route-intro__current time{display:block;margin:16px 0 8px;color:#fff;font-size:15px;font-weight:600}.route-intro__current p{margin:0;color:#d2d4d9;font-size:14px;line-height:1.7}.route-intro__progress{height:2px;margin-top:24px;background:rgba(255,255,255,.12);overflow:hidden}.route-intro__progress i{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--ri-red),var(--ri-gold));transition:width .65s ease}.route-intro__timeline{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.route-intro__controls{height:68px;padding:0 3vw;display:flex;align-items:center;gap:16px;border-top:1px solid rgba(255,255,255,.12);background:rgba(5,6,9,.82);backdrop-filter:blur(16px)}.route-intro__controls button{border:1px solid rgba(255,255,255,.22);color:#f5f1e7;background:transparent;padding:11px 17px;cursor:pointer;font:500 12px/1 "Noto Sans SC",sans-serif;letter-spacing:.08em;transition:.25s}.route-intro__controls button:hover{border-color:var(--ri-gold);color:var(--ri-gold)}#route-intro-toggle{width:40px;height:40px;padding:0;border-radius:50%}#route-intro-status{margin-right:auto;color:#8f949d;font-size:11px}#route-intro-enter{border-color:var(--ri-red);background:var(--ri-red);padding-inline:24px; border-radius: 60px;}#route-intro-enter:hover{color:#fff;background:#cf1c2b}.route-intro__disclaimer{position:absolute;left:3vw;bottom:82px;margin:0;color:#676d78;font-size:10px;letter-spacing:.06em}
@keyframes route-node-pulse{50%{transform:scale(1.55);filter:drop-shadow(0 0 18px #d92533)}}@keyframes route-head-pulse{from{r:24;opacity:1}to{r:56;opacity:0}}@media(max-width:860px){.route-intro__header{height:58px}.route-intro__meta span:last-child{display:none}.route-intro__stage{grid-template-columns:1fr;grid-template-rows:minmax(0,55vh) auto;padding:12px 14px}.route-intro__story{max-width:none;display:grid;grid-template-columns:1fr 1.2fr;gap:18px;align-items:end}.route-intro__eyebrow,.route-intro__scope{display:none}.route-intro__story h1{margin:0;font-size:30px}.route-intro__current{margin:0;min-height:0;padding:10px 0}.route-intro__current time{margin:7px 0 3px;font-size:12px}.route-intro__current p{font-size:11px;line-height:1.45}.route-intro__progress{grid-column:1/-1;margin-top:0}.route-intro__controls{height:60px;padding:0 14px}.route-intro__disclaimer{left:16px;bottom:67px}.route-intro__controls button{padding:10px}#route-intro-status{display:none}}@media(prefers-reduced-motion:reduce){.route-intro__node.is-current,.route-intro__head circle:first-child{animation:none}.route-intro,.route-intro__progress i{transition-duration:.01ms}}
.route-intro__path{stroke-width:38}.route-intro__path--shadow{stroke-width:64}

/* Map-first fullscreen layout */
body.route-intro-open #custom-cursor-dot,body.route-intro-open #custom-cursor-ring{display:none!important}
.route-intro{display:block}.route-intro__header{position:absolute;z-index:5;top:0;left:0;right:0;height:60px;background:linear-gradient(180deg,rgba(5,7,11,.82),transparent);border:0}.route-intro__stage{position:absolute;inset:0;display:block;padding:0}.route-intro__map-frame{position:absolute;inset:0;border:0;background:#000000;box-shadow:none}.route-intro__map,.route-intro__route{transition:transform .4s cubic-bezier(.2,.75,.25,1);transform-origin:45% 62%}.route-intro__map-caption{left:20px;bottom:82px;z-index:4}.route-intro__story{border-radius: 20px;position:absolute;z-index:4;top:76px;right:22px;width:min(310px,calc(100vw - 44px));max-width:none;padding:22px 22px 18px;background:linear-gradient(145deg,rgba(7,9,14,.9),rgba(13,16,23,.76));border:1px solid rgba(255,255,255,.13);box-shadow:0 20px 70px rgba(0,0,0,.42);backdrop-filter:blur(18px)}.route-intro__eyebrow{font-size:9px}.route-intro__story h1{margin:11px 0 8px;font-size:30px;line-height:1.12}.route-intro__story h1 br{display:none}.route-intro__story h1 em{margin-left:.25em}.route-intro__scope{margin:0;font-size:10px;line-height:1.65}.route-intro__current{min-height:102px;margin-top:15px;padding:14px 0}.route-intro__current>span{font-size:9px}.route-intro__current time{margin:9px 0 5px;font-size:12px}.route-intro__current p{font-size:11px;line-height:1.5}.route-intro__progress{margin-top:14px}.route-intro__detail-open{display:flex;align-items:center;justify-content:space-between;width:100%;margin-top:14px;padding:10px 0 0;border:0;border-top:1px solid rgba(255,255,255,.12);color:#d7c393;background:none;font-size:10px;letter-spacing:.08em;cursor:pointer}.route-intro__detail-open span{font-size:16px}.route-intro__controls{position:absolute;z-index:5;left:0;right:0;bottom:0;height:62px}.route-intro__disclaimer{z-index:6;bottom:70px}.route-intro__zoom{position:absolute;z-index:5;left:20px;top:76px;display:grid;grid-template-columns:42px 42px 58px auto;align-items:center;gap:6px;padding:7px;background:rgba(7,9,14,.8);border:1px solid rgba(255,255,255,.15);backdrop-filter:blur(12px)}.route-intro__zoom button{height:36px;border:1px solid rgba(255,255,255,.18);color:#fff;background:rgba(255,255,255,.06);cursor:pointer}.route-intro__zoom button:hover{border-color:var(--ri-gold);color:var(--ri-gold)}.route-intro__zoom output{min-width:42px;color:#d8c48f;font:500 10px/1 "Outfit",sans-serif;text-align:center}
.route-intro__detail{position:absolute;z-index:20;inset:0}.route-intro__detail-backdrop{position:absolute;inset:0;border:0;background:rgba(3,5,8,.72);backdrop-filter:blur(6px);cursor:pointer}.route-intro__detail-panel{position:absolute;top:0;right:0;width:min(590px,100vw);height:100%;box-sizing:border-box;padding:34px 42px 50px;overflow:auto;color:#dedfe2;background:rgba(10,12,17,.96);border-left:1px solid rgba(233,184,79,.28);box-shadow:-30px 0 90px rgba(0,0,0,.5)}.route-intro__detail-panel header{display:flex;justify-content:space-between;align-items:flex-start;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.13)}.route-intro__detail-panel header span{color:var(--ri-gold);font:500 10px/1 "Outfit",sans-serif;letter-spacing:.16em}.route-intro__detail-panel h2{margin:8px 0 0;color:#fff;font-size:31px;font-weight:500}.route-intro__detail-panel header button{width:38px;height:38px;border:1px solid rgba(255,255,255,.2);border-radius:50%;color:#fff;background:none;font-size:23px;cursor:pointer}.route-intro__detail-panel section{padding-top:25px}.route-intro__detail-panel h3{margin:0 0 13px;color:#fff;font-size:14px}.route-intro__detail-panel p{margin:0;color:#afb3ba;font-size:12px;line-height:1.9}.route-intro__detail-panel ol{margin:0;padding:0;list-style:none;counter-reset:route}.route-intro__detail-panel li{counter-increment:route;position:relative;padding:10px 0 10px 38px;border-bottom:1px solid rgba(255,255,255,.07);color:#c9cbd0;font-size:11px;line-height:1.55}.route-intro__detail-panel li:before{content:counter(route,decimal-leading-zero);position:absolute;left:0;color:#b98d3e;font:500 10px/1.7 "Outfit",sans-serif}.route-intro__detail-panel footer{margin-top:24px;padding:15px;border-left:2px solid var(--ri-red);color:#777d87;background:rgba(255,255,255,.03);font-size:10px;line-height:1.7}
@media(max-width:720px){.route-intro__header{height:52px;padding:0 14px}.route-intro__meta{display:none}.route-intro__story{top:auto;right:12px;bottom:72px;left:12px;width:auto;padding:12px 14px}.route-intro__story{display:grid;grid-template-columns:.72fr 1.28fr;gap:10px}.route-intro__story h1{font-size:22px}.route-intro__current{margin:0;min-height:62px;padding:2px 0 8px}.route-intro__detail-open,.route-intro__progress{grid-column:1/-1;margin-top:0}.route-intro__zoom{left:12px;top:62px}.route-intro__map-caption,.route-intro__scope,.route-intro__eyebrow,.route-intro__disclaimer{display:none}.route-intro__controls{height:58px}.route-intro__detail-panel{padding:25px 22px 40px}}

/* Integrated controls, direct map manipulation, and rendering performance */
.route-intro__header .route-intro__meta,.route-intro__scope,.route-intro__disclaimer,.route-intro__controls{display:none!important}.route-intro__map-frame{cursor:grab;touch-action:none;user-select:none}.route-intro__map-frame.is-dragging{cursor:grabbing}.route-intro__map{pointer-events:none;-webkit-user-drag:none}.route-intro__map,.route-intro__route{will-change:transform;transform-origin:center center;backface-visibility:hidden}.route-intro__map-frame.is-dragging .route-intro__map,.route-intro__map-frame.is-dragging .route-intro__route{transition:none}.route-intro__path{filter:none;transition:stroke-dashoffset .7s linear}.route-intro__story{top:76px}.route-intro__panel-actions{display:grid;grid-template-columns:92px 1fr;gap:8px;margin-top:13px}.route-intro__panel-actions button{height:39px;border:1px solid rgba(255,255,255,.16);color:#eee;background:rgba(255,255,255,.05);font:500 10px/1 "Noto Sans SC",sans-serif;cursor:pointer;transition:background .2s,border-color .2s,color .2s}.route-intro__panel-actions button:hover{border-color:var(--ri-gold);color:#fff}.route-intro__play{display:flex;align-items:center;justify-content:center;gap:8px}.route-intro__play .route-intro__star{display:none}.route-intro__play span:first-child{font:600 13px/1 "Outfit",sans-serif}.route-intro__play #route-intro-status{margin:0;color:inherit;font-size:9px}.route-intro__panel-actions .route-intro__enter{border-color:#b41522;background:#b41522}.route-intro__panel-actions .route-intro__enter:hover{background:#d01e2d}.route-intro__map-caption{bottom:20px}.route-intro-replay{bottom:22px}
@media(max-width:720px){.route-intro__story{bottom:12px}.route-intro__panel-actions{grid-column:1/-1}.route-intro__map-caption{display:none}}
.route-intro__panel-actions{grid-template-columns:44px 1fr}.route-intro__play #route-intro-status{display:none}
body.route-intro-open #app{visibility:hidden}.route-intro__story,.route-intro__zoom{backdrop-filter:none}.route-intro__detail-backdrop{backdrop-filter:none}.route-intro__map{contain:strict;overflow:visible;filter:invert(.9) hue-rotate(175deg) saturate(.45) brightness(.62) contrast(1.15)}.route-intro__map-caption span{line-height:1.5}
.route-intro__node.is-current{opacity:0!important;animation:none}
.route-intro__supplement-path{stroke-width:3px;stroke-linecap:round;stroke-linejoin:round;opacity:.52;vector-effect:non-scaling-stroke}.route-intro__supplement-route.is-hidden,.route-intro__path.is-hidden,#route-intro-nodes.is-hidden,.route-intro__node.is-hidden,.route-intro__head.is-hidden{display:none}.route-intro__route-toggles{display:flex;align-items:center;gap:4px;flex-wrap:wrap;max-width:min(680px,calc(100vw - 40px))}.route-intro__route-toggle{height:30px;padding:0 9px;border:1px solid color-mix(in srgb,var(--route-color,#fff) 55%,transparent);border-radius:999px;color:#c7cbd2;background:rgba(7,9,14,.82);font:500 10px/1 "Noto Sans SC",sans-serif;white-space:nowrap;cursor:pointer}.route-intro__route-toggle[data-route-id="red1"]{--route-color:#F23D4F}.route-intro__route-toggle[data-route-id="red2"]{--route-color:#2bb656}.route-intro__route-toggle[data-route-id="red4"]{--route-color:#F2C14E}.route-intro__route-toggle[data-route-id="red25"]{--route-color:#B77CFF}.route-intro__route-toggle[data-route-id="all"]{--route-color:#e9b84f;font-weight:600}.route-intro__route-toggle.is-active{color:#fff;background:color-mix(in srgb,var(--route-color) 26%,rgba(7,9,14,.9))}.route-intro__route-toggle:hover{color:#fff;border-color:var(--route-color)}
.route-intro__supplement-shadow {
  fill: none;
  stroke: rgba(12, 16, 22, 0.75);
  stroke-width: 15px;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.route-intro__supplement-line {
  fill: none;
  stroke-width: 9.5px;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.route-intro__supplement-head {
  stroke: #0a1016;
  stroke-width: 2px;
  stroke-linejoin: miter;
}
.route-intro__supplement-seg {
  opacity: 0;
  transition: opacity 0.25s ease-out;
}
.route-intro__supplement-seg.is-visible {
  opacity: 1;
}
.route-intro__node{r:10;stroke-width:5;opacity:.32}.route-intro__node:first-child,.route-intro__node:last-child{r:13}.route-intro__route .route-intro__anchor{pointer-events:all}.route-intro__supplement-anchor{cursor:pointer;opacity:.8;transition:opacity .18s,transform .18s;transform-box:fill-box;transform-origin:center}.route-intro__supplement-anchor:hover{opacity:1;transform:scale(1.35)}
.route-intro__anchor-popover{position:absolute;z-index:30;inset:0}.route-intro__anchor-backdrop{position:absolute;inset:0;width:100%;height:100%;border:0;background:rgba(3,5,8,.2);cursor:pointer}.route-intro__anchor-card{position:absolute;left:24px;bottom:86px;width:min(340px,calc(100vw - 48px));box-sizing:border-box;padding:20px 22px 18px;color:#d9dce2;background:rgba(9,12,18,.96);border:1px solid rgba(233,184,79,.4);border-radius:14px;box-shadow:0 18px 50px rgba(0,0,0,.5)}.route-intro__anchor-close{position:absolute;right:12px;top:10px;width:28px;height:28px;border:1px solid rgba(255,255,255,.18);border-radius:50%;color:#fff;background:none;font-size:20px;cursor:pointer}.route-intro__anchor-card time{display:block;margin-top:11px;color:#fff;font-size:11px}.route-intro__anchor-card h2{margin:7px 0 9px;color:#fff;font-size:18px;font-weight:600;line-height:1.35}.route-intro__anchor-card footer{margin-top:13px;padding-top:10px;border-top:1px solid rgba(255,255,255,.1);color:#737b88;font-size:9px;line-height:1.5}
.route-intro__head{transition:transform .7s linear}
.route-intro__map-tools{position:absolute;z-index:6;left:20px;bottom:22px;display:flex;align-items:center;gap:14px;max-width:calc(100vw - 40px)}
.route-intro__zoom{position:static;display:flex;flex:0 0 auto;align-items:center;gap:5px;padding:6px;border-radius:13px;background:rgba(7,9,14,.86);border:1px solid rgba(255,255,255,.16);backdrop-filter:none}
.route-intro__zoom button{width:36px;height:34px;padding:0;border-radius:8px}.route-intro__zoom button#route-intro-zoom-reset{width:52px}.route-intro__zoom output{min-width:42px}
.route-intro__route-toggles{flex:0 1 auto;gap:6px}.route-intro__route-toggle{height:34px;padding:0 8px;font-size:10px}
.route-intro__audio-toggle{position:absolute;z-index:6;right:20px;bottom:22px;display:flex;align-items:center;gap:7px;height:46px;padding:0 14px;border:1px solid rgba(233,184,79,.4);border-radius:23px;color:#ddd1ae;background:rgba(7,9,14,.86);font:500 11px/1 "Noto Sans SC",sans-serif;letter-spacing:.08em;cursor:pointer;white-space:nowrap}
.route-intro__audio-toggle>span:first-child{color:var(--ri-gold);font-size:18px;line-height:1}.route-intro__audio-toggle.is-on{border-color:rgba(233,184,79,.72);color:#fff}.route-intro__audio-toggle:hover{border-color:var(--ri-gold);color:#fff}
@media(max-width:720px){.route-intro__map-tools{left:12px;top:62px;bottom:auto;max-width:calc(100vw - 24px)}.route-intro__zoom{gap:3px;padding:5px}.route-intro__zoom button{width:34px;height:32px}.route-intro__audio-toggle{right:12px;top:62px;bottom:auto;height:42px;padding:0 11px;font-size:10px}}
@media(max-width:720px){.route-intro__anchor-card{left:12px;bottom:78px;width:calc(100vw - 24px);padding:17px 18px 15px}.route-intro__anchor-card h2{font-size:16px}.route-intro__anchor-card p{font-size:11px;line-height:1.65}}

/* Desktop presentation scale: keep the map dominant while making the story
   card and detail reading surface legible at projector distance. */
@media (min-width:721px){
  .route-intro__story{top:72px;right:28px;width:min(420px,calc(100vw - 56px));padding:30px 30px 26px}
  .route-intro__story h1{margin:14px 0 12px;font-size:40px;line-height:1.12}
  .route-intro__current{min-height:132px;margin-top:30px;padding:24px 0}
  .route-intro__current>span{font-size:18px}
  .route-intro__current time{margin:12px 0 8px;font-size:24px}
  .route-intro__current p{font-size:20px;line-height:1.75}
  .route-intro__progress{margin-top:24px;height:3px}
  .route-intro__detail-open{margin-top:24px;padding-top:24px;font-size:18px}
  .route-intro__detail-open span{font-size:19px}
  .route-intro__panel-actions{grid-template-columns:108px 1fr;gap:10px;margin-top:24px}
  .route-intro__panel-actions button{height:46px;font-size:16px}
  .route-intro__play span:first-child{font-size:15px}
  .route-intro__detail-panel{width:min(760px,100vw);padding:44px 58px 64px}
  .route-intro__detail-panel header{padding-bottom:30px}
  .route-intro__detail-panel header span{font-size:12px}
  .route-intro__detail-panel h2{margin-top:11px;font-size:40px}
  .route-intro__detail-panel header button{width:44px;height:44px;font-size:27px}
  .route-intro__detail-panel section{padding-top:32px}
  .route-intro__detail-panel h3{margin-bottom:16px;font-size:18px}
  .route-intro__detail-panel p{font-size:18px;line-height:2}
  .route-intro__detail-panel li{padding:13px 0 13px 46px;font-size:18px;line-height:1.7}
  .route-intro__detail-panel li:before{font-size:16px;line-height:2}
  .route-intro__detail-panel footer{margin-top:30px;padding:18px;font-size:12px;line-height:1.8}
}

/* Focused node reading surface */
.route-intro__anchor-backdrop{background:rgba(3,5,8,.42)}
.route-intro__anchor-card{left:50%;top:50%;bottom:auto;width:min(560px,calc(100vw - 48px));padding:34px 38px 32px;border: 1px solid rgba(255, 255, 255, .13);border-radius:18px;background:rgba(9,12,18,.97);box-shadow:0 28px 90px rgba(0,0,0,.62);transform:translate(-50%,-50%)}
.route-intro__anchor-close{right:18px;top:16px;width:34px;height:34px;font-size:24px}
.route-intro__anchor-route{display:block;margin-right:48px;color:var(--ri-gold);font:600 15px/1.35 "Noto Sans SC",sans-serif;letter-spacing:.1em}
.route-intro__anchor-card time{margin-top:18px;font-size:17px;font-weight:500}
.route-intro__anchor-card h2{margin:10px 0 0;font-size:30px;line-height:1.4}
.route-intro__node.route-intro__anchor{cursor:pointer}
@media(max-width:720px){.route-intro__anchor-card{left:50%;top:50%;bottom:auto;width:min(420px,calc(100vw - 24px));padding:26px 26px 24px;transform:translate(-50%,-50%)}.route-intro__anchor-route{font-size:13px}.route-intro__anchor-card time{margin-top:15px;font-size:15px}.route-intro__anchor-card h2{font-size:24px}}

/* =========================================================
   军事战役地图风格：修长尖锐红色进攻箭头体系
   ========================================================= */
#route-intro-path, #route-intro-shadow, #route-intro-head {
  display: none !important;
}

.route-intro__arrows {
  pointer-events: none;
}
.route-intro__arrow-seg {
  opacity: 0;
  transition: opacity 0.25s ease-out;
}
.route-intro__arrow-seg.is-visible {
  opacity: 1;
}

.route-intro__arrow-shadow {
  fill: none;
  stroke: rgba(22, 3, 5, 0.75);
  stroke-width: 15px;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.route-intro__arrow-line {
  fill: none;
  stroke-width: 9.5px;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.route-intro__arrow-head {
  stroke: rgba(0, 0, 0, 0.45);
  stroke-width: 2px;
  stroke-linejoin: miter;
}

.route-intro__active-arrow {
  pointer-events: none;
}
.route-intro__active-shadow {
  fill: none;
  stroke: rgba(18, 2, 4, 0.75);
  stroke-width: 17px;
  stroke-linecap: round;
}
.route-intro__active-line {
  fill: none;
  stroke-width: 10px;
  stroke-linecap: round;
  filter: drop-shadow(0 0 6px var(--node-glow, rgba(230, 35, 52, 0.6)));
}
.route-intro__active-tip {
  stroke-width: 2.5px;
  stroke-linejoin: miter;
  filter: drop-shadow(0 0 10px var(--node-glow, rgba(235, 40, 55, 0.85)));
}

.route-intro__node {
  fill: var(--node-color, #cf1b29) !important;
  stroke: #ffe494 !important;
  stroke-width: 4px !important;
  r: 11px !important;
  opacity: 0.78 !important;
  transition: opacity 0.3s ease, transform 0.3s ease;
  transform-origin: center;
  transform-box: fill-box;
}
.route-intro__node:first-child,
.route-intro__node:last-child {
  r: 15px !important;
  stroke-width: 5px !important;
  fill: var(--node-color, #cf1b29) !important;
  stroke: #ffffff !important;
  opacity: 0.95 !important;
}
.route-intro__node.is-passed {
  opacity: 0.88 !important;
}
.route-intro__node.is-current {
  opacity: 1 !important;
  r: 13px !important;
  stroke: #ffffff !important;
  animation: military-node-ripple 1.8s ease-out infinite !important;
}

@keyframes military-node-ripple {
  0% {
    stroke-width: 4px;
    filter: drop-shadow(0 0 3px var(--node-glow, #ff4a58));
  }
  50% {
    stroke-width: 9px;
    filter: drop-shadow(0 0 18px var(--node-glow, #ff3344));
  }
  100% {
    stroke-width: 4px;
    filter: drop-shadow(0 0 3px var(--node-glow, #ff4a58));
  }
}

.route-intro__node.is-arrived {
  animation: node-arrival-confirm 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275) !important;
}
@keyframes node-arrival-confirm {
  0% {
    transform: scale(1);
    stroke-width: 4px;
  }
  40% {
    transform: scale(1.6);
    stroke-width: 8px;
    stroke: #ffffff;
    filter: drop-shadow(0 0 20px var(--node-glow, #ffffff));
  }
  100% {
    transform: scale(1);
    stroke-width: 4px;
  }
}

/* 右侧图1文字动画与左侧路线节点紧密联动 */
.route-intro__current {
  position: relative;
  overflow: hidden;
}
.route-intro__current.is-animating #route-intro-index {
  animation: route-index-pulse 0.45s ease-out;
}
.route-intro__current.is-animating #route-intro-date,
.route-intro__current.is-animating #route-intro-copy {
  animation: route-text-slide-in 0.42s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes route-index-pulse {
  0% {
    opacity: 0.35;
    transform: scale(0.92);
  }
  50% {
    opacity: 1;
    transform: scale(1.08);
    text-shadow: 0 0 10px var(--node-glow, rgba(233, 184, 79, 0.8));
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes route-text-slide-in {
  0% {
    opacity: 0.2;
    transform: translateY(8px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.route-intro__supplement-anchor {
  r: 11px !important;
  stroke: #ffe494 !important;
  stroke-width: 4px !important;
  opacity: 0.82 !important;
  transition: opacity 0.3s ease, transform 0.3s ease;
  transform-origin: center;
  transform-box: fill-box;
}
.route-intro__supplement-anchor:hover {
  opacity: 1 !important;
  transform: scale(1.3) !important;
}

/* 路线曲率调节控制台样式 */
.route-intro__curve-panel {
  position: relative;
  display: flex;
  align-items: center;
}
.route-intro__curve-toggle {
  height: 34px;
  padding: 0 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(233, 184, 79, 0.45);
  border-radius: 999px;
  color: #ebdcb5;
  background: rgba(14, 18, 26, 0.88);
  font: 500 11px/1 "Noto Sans SC", sans-serif;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.route-intro__curve-toggle:hover,
.route-intro__curve-toggle.is-open {
  border-color: var(--ri-gold);
  color: #fff;
  background: rgba(26, 32, 45, 0.95);
  box-shadow: 0 0 12px rgba(233, 184, 79, 0.25);
}
.route-intro__curve-toggle output {
  color: var(--ri-gold);
  font-weight: 700;
  font-family: "Outfit", sans-serif;
}
.route-intro__curve-body {
  position: absolute;
  left: 0;
  bottom: calc(100% + 10px);
  width: 260px;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(10, 14, 20, 0.96);
  border: 1px solid rgba(233, 184, 79, 0.35);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(12px);
  z-index: 25;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.route-intro__curve-body[hidden] {
  display: none !important;
}
.route-intro__curve-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.route-intro__curve-label {
  font-size: 10px;
  color: #a7acb5;
  letter-spacing: 0.05em;
}
.route-intro__curve-row input[type="range"] {
  appearance: none;
  width: 100%;
  height: 5px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.15);
  outline: none;
  cursor: pointer;
}
.route-intro__curve-row input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--ri-gold);
  box-shadow: 0 0 6px rgba(233, 184, 79, 0.8);
  cursor: pointer;
  transition: transform 0.15s ease;
}
.route-intro__curve-row input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.25);
}
.route-intro__curve-modes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px;
}
.route-intro__curve-mode {
  height: 26px;
  padding: 0 6px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  color: #b0b5bd;
  font-size: 10px;
  cursor: pointer;
  transition: all 0.2s;
}
.route-intro__curve-mode:hover {
  border-color: rgba(233, 184, 79, 0.5);
  color: #fff;
}
.route-intro__curve-mode.is-active {
  border-color: var(--ri-gold);
  color: #fff;
  background: rgba(233, 184, 79, 0.18);
  font-weight: 600;
}
.route-intro__curve-actions {
  flex-direction: row;
  justify-content: space-between;
  gap: 8px;
  margin-top: 4px;
}
.route-intro__curve-actions button {
  flex: 1;
  height: 26px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  color: #d1d5db;
  font-size: 10px;
  cursor: pointer;
  transition: all 0.2s;
}
.route-intro__curve-actions button:hover {
  border-color: var(--ri-gold);
  color: #fff;
}

/* 详细介绍弹窗内的四军团切换胶囊按钮（严格吻合图2外观与彩色边框） */
.route-intro__detail-tabs {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  flex-wrap: wrap;
}
.route-intro__detail-tab {
  height: 38px;
  padding: 0 18px;
  border-radius: 999px;
  background: rgba(8, 10, 15, 0.88);
  font: 500 13px/1 "Noto Sans SC", sans-serif;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all 0.22s cubic-bezier(0.2, 0.8, 0.25, 1);
  white-space: nowrap;
  outline: none;
}
.route-intro__detail-tab[data-tab="red1"] {
  border: 1.5px solid #cf1b29;
  color: #f8d2d6;
}
.route-intro__detail-tab[data-tab="red1"]:hover,
.route-intro__detail-tab[data-tab="red1"].is-active {
  background: rgba(207, 27, 41, 0.28);
  border-color: #f23d4f;
  color: #fff;
  box-shadow: 0 0 16px rgba(207, 27, 41, 0.45);
}

.route-intro__detail-tab[data-tab="red2"] {
  border: 1.5px solid #2bb656;
  color: #c6f5d3;
}
.route-intro__detail-tab[data-tab="red2"]:hover,
.route-intro__detail-tab[data-tab="red2"].is-active {
  background: rgba(43, 182, 86, 0.28);
  border-color: #38d669;
  color: #fff;
  box-shadow: 0 0 16px rgba(43, 182, 86, 0.45);
}

.route-intro__detail-tab[data-tab="red4"] {
  border: 1.5px solid #f2c14e;
  color: #fceed0;
}
.route-intro__detail-tab[data-tab="red4"]:hover,
.route-intro__detail-tab[data-tab="red4"].is-active {
  background: rgba(242, 193, 78, 0.28);
  border-color: #ffd875;
  color: #fff;
  box-shadow: 0 0 16px rgba(242, 193, 78, 0.45);
}

.route-intro__detail-tab[data-tab="red25"] {
  border: 1.5px solid #b77cff;
  color: #eedeff;
}
.route-intro__detail-tab[data-tab="red25"]:hover,
.route-intro__detail-tab[data-tab="red25"].is-active {
  background: rgba(183, 124, 255, 0.28);
  border-color: #ce9eff;
  color: #fff;
  box-shadow: 0 0 16px rgba(183, 124, 255, 0.45);
}

@media (min-width: 721px) {
  .route-intro__detail-tabs {
    margin-top: 28px;
    gap: 14px;
  }
  .route-intro__detail-tab {
    height: 42px;
    padding: 0 22px;
    font-size: 15px;
  }
}