/* 星际拓荒者介绍页 · 与像素天文台同一套版式：居中大字标、胶囊按钮、章节标签、圆角玻璃卡片、专门的图解。
   星际拓荒者自己的辨识：紫色工厂行星、矿石橙细节、冷青轨道线。只动 transform / opacity / clip-path。 */
:root{--ease-out:cubic-bezier(0.23,1,0.32,1);--ease-in-out:cubic-bezier(0.77,0,0.175,1);--r:18px}
body{font-size:16px;line-height:1.75}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
section{position:relative;padding:130px 0}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:var(--gold);margin:0 0 22px;display:block}
.eyebrow::before{display:none}
.eyebrow b{color:var(--ore);font-weight:500}
h2{font-size:clamp(32px,5vw,54px);font-weight:700;letter-spacing:-.02em;line-height:1.14;color:var(--txt-hi);margin:0 0 10px}
.lede{font-size:clamp(17px,2vw,20px);max-width:38em;color:var(--txt-mid);margin:24px 0 0}
.center{text-align:center}.center .lede{margin-inline:auto}

/* ---------- 胶囊按钮（和天文台同款，带扫光） ---------- */
.btn{position:relative;overflow:hidden;display:inline-flex;align-items:center;gap:10px;padding:16px 34px;border-radius:999px;font:650 16px var(--sans);
  text-decoration:none;cursor:pointer;border:1px solid transparent;transition:transform 500ms var(--ease-out),box-shadow 500ms,border-color 400ms}
.btn::before{content:"";position:absolute;top:-60%;left:-90%;width:50%;height:220%;background:linear-gradient(105deg,transparent,rgba(255,255,255,.35) 48%,transparent);
  transform:rotate(8deg);transition:transform 900ms var(--ease-out);pointer-events:none}
.btn:active{transform:scale(.97)}
.btn-gold{background:linear-gradient(160deg,#f0d492,var(--gold) 55%,#b8862f);color:#100b02;box-shadow:inset 0 1px 0 rgba(255,255,255,.55),inset 0 -1px 0 rgba(0,0,0,.25),0 8px 28px rgba(217,166,72,.32)}
.btn-ghost{border-color:rgba(190,210,255,.22);color:var(--txt-hi);background:linear-gradient(160deg,rgba(120,150,220,.14),rgba(16,26,51,.4));
  backdrop-filter:blur(18px) saturate(1.6);-webkit-backdrop-filter:blur(18px) saturate(1.6);box-shadow:inset 0 1px 0 rgba(255,255,255,.16),0 8px 28px rgba(0,0,0,.35)}
.btn .play-ico{width:11px;height:13px;flex:none;clip-path:polygon(0 0,100% 50%,0 100%);background:currentColor}
@media (hover:hover) and (pointer:fine){
  .btn:hover::before{transform:rotate(8deg) translateX(480%)}
  .btn-gold:hover{transform:translateY(-3px) scale(1.03);box-shadow:inset 0 1px 0 rgba(255,255,255,.55),0 14px 46px rgba(217,166,72,.5)}
  .btn-ghost:hover{transform:translateY(-3px) scale(1.03);border-color:rgba(220,235,255,.4)}
}

/* ---------- 导航收放 ---------- */
.snav{transition:transform 500ms var(--ease-out),opacity 300ms ease}
.snav.hide{transform:translateX(-50%) translateY(-140%);opacity:0}

/* ---------- 首屏 ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;padding:120px 0 34vh;isolation:isolate}
.hero-sky{position:absolute;inset:0;width:100%;height:100%;z-index:-3;pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(to bottom,rgba(5,7,13,.25),rgba(5,7,13,0) 24%,rgba(5,7,13,0) 88%,var(--ink-0))}
/* 巨大的工厂行星从画面底部升起、缓慢自转（纯黑底视频，用 screen 叠在星空上） */
.hero-planet{position:absolute;left:50%;bottom:0;width:min(1500px,150vw);aspect-ratio:16/9;z-index:-2;pointer-events:none;
  transform:translate(-50%,40%);mix-blend-mode:screen;will-change:transform;filter:brightness(1.35) saturate(1.15)}
.hero-planet video,.hero-planet img{width:100%;height:100%;object-fit:cover;display:block}
/* 用遮罩把视频边缘淡成真正透明（压缩视频的“黑”不是纯黑，直接叠会看到视频框的边） */
.hero-planet video,.hero-planet img{-webkit-mask-image:radial-gradient(ellipse 50% 50% at 50% 50%,#000 58%,transparent 78%);mask-image:radial-gradient(ellipse 50% 50% at 50% 50%,#000 58%,transparent 78%)}
/* 行星上缘的大气辉光弧线 */
.hero-planet::before{content:"";position:absolute;left:21%;right:21%;top:2%;aspect-ratio:1;border-radius:50%;
  box-shadow:0 -10px 60px 6px rgba(141,107,255,.45),inset 0 14px 40px rgba(181,157,255,.35);z-index:1}
/* 标题背后的柔光（不用 filter，避免滤镜区域在背景上留下矩形接缝） */
.hero-inner::before{content:"";position:absolute;left:50%;top:44%;width:min(1100px,110vw);height:420px;transform:translate(-50%,-50%);z-index:-1;pointer-events:none;
  background:radial-gradient(closest-side,rgba(141,107,255,.2),rgba(141,107,255,.06) 55%,transparent)}
.hero-inner{position:relative;z-index:2;will-change:transform,opacity;padding:0 20px}
.hero-tag{font-family:var(--mono);font-size:12px;letter-spacing:.34em;color:var(--txt-low);text-transform:uppercase;margin-bottom:30px;display:flex;gap:12px;justify-content:center;align-items:center;flex-wrap:wrap}
.hero-tag .new{font:800 10.5px var(--sans);letter-spacing:.14em;color:#100b02;background:linear-gradient(160deg,#f0d492,var(--gold));padding:3px 9px;border-radius:999px}
.hero h1{margin:0;font-size:clamp(38px,7.4vw,96px);font-weight:800;letter-spacing:.02em;line-height:1.04;
  background:linear-gradient(178deg,#fff 20%,#e2dcff 48%,#a595e0 78%,#6c5cae);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero h1 .sub{display:block;font-size:.42em;font-weight:500;letter-spacing:.42em;padding-left:.42em;margin-top:22px;
  background:linear-gradient(178deg,#ffd9a0,var(--ore) 60%,#b86a24);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin:30px 0 0;font-size:clamp(16px,2.1vw,21px);color:var(--txt-mid)}
.hero-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:46px}
.hero-facts{display:flex;gap:10px 26px;justify-content:center;flex-wrap:wrap;margin-top:34px;font-size:13px;color:var(--txt-low)}
.hero-facts b{font-family:var(--mono);color:var(--gold-soft);font-weight:500;margin-right:6px;letter-spacing:.1em}
.scroll-hint{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:3;font-family:var(--mono);font-size:11px;letter-spacing:.3em;color:var(--txt-low);text-transform:uppercase;display:flex;flex-direction:column;align-items:center;gap:12px}
.scroll-hint::after{content:"";width:1px;height:34px;background:linear-gradient(var(--txt-low),transparent);animation:hintDrop 2.4s ease-in-out infinite}
@keyframes hintDrop{0%,100%{opacity:.25;transform:scaleY(.6);transform-origin:top}50%{opacity:1;transform:scaleY(1)}}
html.js .rise{animation:rise 1.2s var(--ease-out) both;animation-delay:calc(var(--i,0) * 110ms + 200ms)}
@keyframes rise{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:none}}

/* ---------- 通用玻璃卡片 ---------- */
.card{border:1px solid rgba(190,210,255,.12);border-radius:var(--r);background:linear-gradient(160deg,rgba(120,150,220,.08),rgba(13,21,48,.5));
  backdrop-filter:blur(16px) saturate(1.5);-webkit-backdrop-filter:blur(16px) saturate(1.5);box-shadow:inset 0 1px 0 rgba(255,255,255,.1),0 12px 34px rgba(0,0,0,.35);
  transition:transform 500ms var(--ease-out),border-color 400ms}
@media (hover:hover) and (pointer:fine){.card.lift:hover{transform:translateY(-5px);border-color:rgba(233,201,135,.32)}}

/* ---------- 宣传片 ---------- */
.trailer-card{position:relative;margin-top:56px;padding:10px;border-radius:24px}
.trailer-card video{width:100%;aspect-ratio:16/9;display:block;border-radius:16px;background:#000;height:auto}
.play-big{position:absolute;inset:10px;border-radius:16px;display:grid;place-items:center;border:0;cursor:pointer;background:radial-gradient(ellipse at center,rgba(5,7,13,.05),rgba(5,7,13,.5));transition:opacity 300ms var(--ease-out)}
.play-big>span{position:relative;width:86px;height:86px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(160deg,#f0d492,var(--gold) 55%,#b8862f);box-shadow:0 10px 40px rgba(217,166,72,.45);transition:transform 200ms var(--ease-out)}
.play-big>span::before{content:"";margin-left:6px;border-left:22px solid #100b02;border-top:14px solid transparent;border-bottom:14px solid transparent}
.play-big>span::after{content:"";position:absolute;inset:-10px;border-radius:50%;border:2px solid rgba(233,201,135,.7);animation:pulse 2.4s var(--ease-out) infinite}
@keyframes pulse{from{transform:scale(.9);opacity:1}to{transform:scale(1.45);opacity:0}}
.play-big em{position:absolute;bottom:12%;font-style:normal;font-family:var(--mono);font-size:12px;letter-spacing:.3em;color:var(--txt-hi)}
.play-big.gone{opacity:0;pointer-events:none}
.play-big:active>span{transform:scale(.96)}
.caption{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;color:var(--txt-low);margin-top:14px;padding:0 6px}

/* ---------- 招牌段落：殖民地随滚动建成（沿用 fx.js 的画布） ---------- */
.build-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:56px;margin-top:40px;align-items:start}
.bstep{min-height:74vh;display:flex;flex-direction:column;justify-content:center;padding:24px 0;opacity:.26;transition:opacity 400ms var(--ease-out)}
.bstep.cur{opacity:1}
.bstep .idx{font-family:var(--mono);font-size:12px;letter-spacing:.24em;color:var(--gold)}
.bstep h3{font-size:clamp(26px,3vw,36px);margin:10px 0 12px;letter-spacing:-.01em}
.bstep p{margin:0 0 14px;max-width:46ch}
.bstep .tip{font-size:13.5px;color:var(--txt-low);border-left:2px solid rgba(217,166,72,.5);padding-left:12px}
.bstep .tip b{color:var(--gold-soft);font-weight:600}
.build-stage{position:sticky;top:96px;height:min(700px,calc(100vh - 130px))}
.build-sticky{position:relative;height:100%;border-radius:24px;overflow:hidden;background:radial-gradient(ellipse at 50% 45%,#140e30,#05070d 72%)}
.build-sticky canvas{position:absolute;inset:0;width:100%;height:100%}
.hud{position:absolute;left:16px;right:16px;top:16px;display:flex;gap:8px;flex-wrap:wrap;pointer-events:none}
.hud .chip{display:flex;align-items:baseline;gap:8px;padding:6px 12px;border-radius:999px;background:rgba(10,14,28,.78);border:1px solid rgba(190,210,255,.14);font-variant-numeric:tabular-nums}
.hud .chip i{font-style:normal;font-size:11px;color:var(--c,var(--ore))}
.hud .chip b{color:var(--txt-hi);font-size:16px;min-width:4ch}
.hud .chip small{color:#9fe0a8;font-size:11.5px}
.build-dots{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);display:flex;gap:6px;padding:5px;background:rgba(10,14,28,.72);border:1px solid rgba(190,210,255,.12);border-radius:999px}
.build-dots button{font:600 12px var(--sans);color:var(--txt-low);background:transparent;border:0;border-radius:999px;padding:6px 13px;cursor:pointer;transition:transform 160ms var(--ease-out)}
.build-dots button:active{transform:scale(.96)}
.build-dots button[aria-current="true"]{color:#100b02;background:linear-gradient(160deg,#f0d492,var(--gold))}
.demo-tag{position:absolute;right:16px;bottom:64px;font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--txt-low)}
.caption-live{position:absolute;left:18px;bottom:64px;font-size:13px;color:var(--txt-hi);max-width:60%}
@media (max-width:900px){.build-grid{grid-template-columns:1fr;gap:0}.build-stage{order:-1;top:64px;height:48vh;z-index:3}
  .bstep{min-height:62vh;background:linear-gradient(180deg,transparent,rgba(5,7,13,.92) 16%)}.demo-tag,.caption-live{display:none}}

/* ---------- 章节：图文 ---------- */
.chapter{display:grid;grid-template-columns:1fr 1.15fr;gap:64px;align-items:center}
.chapter.flip>.visual{order:-1}
.chapter h3{font-size:clamp(26px,3.2vw,38px);margin:0 0 16px;letter-spacing:-.015em;line-height:1.2}
.chapter p{margin:0 0 14px;max-width:36em}
.points{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:10px}
.points li{position:relative;padding-left:26px;font-size:15px}
.points li::before{content:"";position:absolute;left:0;top:.72em;width:12px;height:1px;background:var(--gold)}
.points b{color:var(--txt-hi);font-weight:600}
.visual{position:relative;padding:10px;border-radius:24px}
.visual img,.visual svg{display:block;width:100%;height:auto;border-radius:16px}
.visual img{aspect-ratio:16/9;object-fit:cover;background:#05070d}
.badge{position:absolute;top:22px;left:22px;font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--txt-hi);background:rgba(5,7,13,.7);border:1px solid rgba(190,210,255,.18);padding:5px 11px;border-radius:999px;backdrop-filter:blur(8px)}
.zoomable{cursor:zoom-in}
html.js .visual.rv img{clip-path:inset(0 0 100% 0 round 16px);transform:scale(1.06);transition:clip-path 1100ms var(--ease-in-out),transform 1400ms var(--ease-out)}
html.js .visual.rv.in img{clip-path:inset(0 0 0 0 round 16px);transform:none}
@media (max-width:900px){.chapter{grid-template-columns:1fr;gap:28px}.chapter.flip>.visual{order:0}}

/* ---------- 图解（SVG） ---------- */
.diagram{background:radial-gradient(ellipse at 50% 50%,#0f1633,#070a16 75%)}
.diagram svg{aspect-ratio:16/10}
.diagram text{font-family:var(--mono);font-size:11px;letter-spacing:.12em;fill:#8e9ab6}
.diagram .lbl{fill:#e8ecf4;font-family:var(--sans);font-size:13px;letter-spacing:.02em}
.diagram .gold{fill:var(--gold-soft)}
.stages{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:14px}
.stages div{padding:10px 12px;border-radius:12px;background:rgba(5,9,20,.5);border:1px solid rgba(190,210,255,.1);font-size:12.5px}
.stages b{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--gold);font-weight:500}
@media (max-width:620px){.stages{grid-template-columns:repeat(2,1fr)}}

/* ---------- 数据带 ---------- */
.specs{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:56px}
.spec{padding:24px 22px}
.spec b{display:block;font-family:var(--mono);font-size:26px;color:var(--txt-hi);font-weight:600;letter-spacing:.02em;font-variant-numeric:tabular-nums}
.spec span{font-size:13px;color:var(--txt-low)}
@media (max-width:760px){.specs{grid-template-columns:repeat(2,1fr)}}

/* ---------- 六个理由 ---------- */
.perks{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:56px}
.perk{padding:28px 26px;position:relative;overflow:hidden}
.perk .ico{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;margin-bottom:16px;font:600 15px var(--mono);color:var(--gold-soft);
  background:linear-gradient(160deg,rgba(217,166,72,.18),rgba(217,166,72,.04));border:1px solid rgba(217,166,72,.3)}
.perk h3{font-size:18px;margin:0 0 8px}
.perk p{margin:0;font-size:14.5px}
@media (hover:hover) and (pointer:fine){.perk::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity 300ms ease;background:radial-gradient(260px circle at var(--mx,50%) var(--my,50%),rgba(217,166,72,.12),transparent 60%)}.perk:hover::after{opacity:1}}
@media (max-width:900px){.perks{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.perks{grid-template-columns:1fr}}

/* ---------- 成长路线 ---------- */
.road{display:grid;grid-template-columns:repeat(7,1fr);margin:64px 0 0;padding:0;position:relative}
.road::before{content:"";position:absolute;left:0;right:0;top:9px;height:1px;background:linear-gradient(90deg,var(--gold),var(--cyan),var(--violet))}
.road li{list-style:none;padding:34px 12px 0 0;position:relative}
.road li::before{content:"";position:absolute;top:3px;left:0;width:12px;height:12px;border-radius:50%;background:var(--ink-0);border:1.5px solid var(--gold)}
.road b{display:block;color:var(--txt-hi);font-size:16px}
.road span{font-size:13px;color:var(--txt-low);display:block;line-height:1.55;margin-top:4px}
html.js .road::before{transform:scaleX(0);transform-origin:left;transition:transform 1600ms var(--ease-in-out)}
html.js .road.in::before{transform:none}
html.js .road li{opacity:0;transform:translateY(12px);transition:opacity 600ms var(--ease-out),transform 700ms var(--ease-out);transition-delay:calc(var(--d,0) * 170ms + 200ms)}
html.js .road.in li{opacity:1;transform:none}
.road li::before{transition:background-color 400ms ease,box-shadow 400ms ease;transition-delay:calc(var(--d,0) * 170ms + 350ms)}
html.js .road.in li::before{background:var(--gold);box-shadow:0 0 14px rgba(217,166,72,.8)}
@media (max-width:900px){.road{grid-template-columns:1fr;gap:20px}.road::before{left:5px;right:auto;top:0;bottom:0;width:1px;height:auto}html.js .road::before{transform:scaleY(0);transform-origin:top}
  .road li{padding:0 0 0 30px}.road li::before{top:6px}}

/* ---------- 画廊 ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:56px}
.gallery button{padding:0;border:1px solid rgba(190,210,255,.12);border-radius:16px;background:#05070d;cursor:zoom-in;overflow:hidden;display:block;transition:transform 160ms var(--ease-out)}
.gallery button:active{transform:scale(.985)}
.gallery img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block;transition:transform 600ms var(--ease-out)}
.gallery .wide{grid-column:span 2;grid-row:span 2}
.gallery .wide img{height:100%}
@media (hover:hover) and (pointer:fine){.gallery button:hover img{transform:scale(1.05)}}
@media (max-width:760px){.gallery{grid-template-columns:repeat(2,1fr)}}
.lightbox{position:fixed;inset:0;z-index:300;background:rgba(3,5,10,.93);display:grid;place-items:center;padding:24px;cursor:zoom-out;transition:background-color 300ms var(--ease-out)}
.lightbox.opening,.lightbox.closing{background-color:rgba(3,5,10,0)}
.lightbox img{max-height:90vh;width:auto;border-radius:14px;border:1px solid rgba(190,210,255,.2);transform-origin:0 0}

/* ---------- 账号互通 ---------- */
.shared{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;padding:48px;border-radius:28px}
.pair{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;align-items:stretch}
@media (max-width:560px){.pair{grid-template-columns:1fr}}
.pair .node{padding:16px 16px;text-align:center;border-radius:16px;border:1px solid rgba(190,210,255,.2);background:rgba(5,9,20,.5);min-width:0;color:var(--txt-hi)}
.pair .node small{display:block;color:var(--txt-low);font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;margin-top:4px}
.pair .link{color:var(--gold);font-size:22px}
.pair .key{grid-column:1/-1;margin-top:6px;width:100%;text-align:center;font-family:var(--mono);font-size:11.5px;letter-spacing:.2em;color:var(--gold)}
@media (max-width:820px){.shared{grid-template-columns:1fr;padding:30px}}

/* ---------- 结尾 ---------- */
.final{text-align:center;overflow:hidden;padding:150px 0 200px}
.final::before{content:"";position:absolute;left:50%;bottom:-40%;width:min(1200px,140vw);aspect-ratio:1;transform:translateX(-50%);border-radius:50%;
  background:radial-gradient(circle at 50% 30%,rgba(141,107,255,.35),rgba(60,36,140,.2) 40%,transparent 66%);pointer-events:none}
.final .hero-cta{margin-top:40px}
footer{border-top:1px solid var(--line);padding:30px 0;font-size:13px;color:var(--txt-low)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer a{color:var(--txt-mid);text-decoration:none}
footer a:hover{color:var(--txt-hi)}

/* ---------- 滚动显现 ---------- */
html.js .rv{opacity:0;transform:translateY(24px);transition:opacity 800ms var(--ease-out),transform 1000ms var(--ease-out);transition-delay:calc(var(--d,0) * 80ms)}
html.js .rv.in{opacity:1;transform:none}

@media (max-width:620px){section{padding:90px 0}.hero{padding-bottom:26vh}.hero-planet{width:190vw}.play-big em{display:none}}
@media (prefers-reduced-motion:reduce){
  html.js .rise{animation:fadeIn 400ms ease both}
  html.js .rv,html.js .road li{transform:none}
  html.js .visual.rv img{clip-path:none;transform:none}
  html.js .road::before{transform:none;transition:none}
  .scroll-hint::after,.play-big>span::after{animation:none}
}
@keyframes fadeIn{from{opacity:0}}