:root{
  --paper:#fff6e6; --ink:#1f1d2b; --soft:#5b5870;
  --sun:#ffc83d; --tomato:#ff6b4a; --sky:#4cc2ff; --mint:#38d39f; --pink:#ff8cc6; --grape:#8e7bff;
  --sun-l:#ffe7a6; --tomato-l:#ffd5ca; --sky-l:#cdeeff; --mint-l:#c9f3e2; --pink-l:#ffdcee; --grape-l:#e2ddff;
  --bd:2.5px solid var(--ink);
  --pop:cubic-bezier(.34,1.56,.64,1);
  --gut:24px;
  /* 系统字体：国内访问无需加载任何外部字体；按页面语言切换字体栈（i18n.js 设置 html[lang]） */
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --round:"Arial Rounded MT Bold","Segoe UI Black","Arial Black",var(--sans);
}
html[lang=zh-CN]{--sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif}
html[lang=zh-TW]{--sans:"PingFang TC","Microsoft JhengHei","Noto Sans TC",system-ui,sans-serif}
html[lang=ja]{--sans:"Hiragino Sans","Yu Gothic UI","Meiryo","Noto Sans JP",system-ui,sans-serif}
@media (max-width:560px){:root{--gut:16px}}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{font-family:var(--sans);color:var(--ink);line-height:1.75;overflow-x:hidden;-webkit-font-smoothing:antialiased;
  background:radial-gradient(rgba(31,29,43,.08) 1.3px,transparent 1.8px) 0 0/24px 24px,var(--paper)}
a{color:inherit;text-decoration:none}
p{color:var(--soft)}
img{display:block;max-width:100%}
::selection{background:var(--sun)}
a:focus-visible,button:focus-visible{outline:3px solid var(--sky);outline-offset:3px}
.wrap{width:min(1200px,100% - 2*var(--gut));margin-inline:auto}
.hl{position:relative;z-index:0;white-space:nowrap}
.hl::after{content:"";position:absolute;z-index:-1;left:-.1em;right:-.1em;bottom:.08em;height:.42em;background:var(--sun);border-radius:.2em;rotate:-1.5deg}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 24px;border:var(--bd);border-radius:99px;background:#fff;color:var(--ink);
  font:800 16px/1.2 var(--sans);box-shadow:4px 4px 0 var(--ink);cursor:pointer;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--ink)}
.btn:active{transform:translate(3px,3px);box-shadow:1px 1px 0 var(--ink)}
.btn.primary{background:var(--tomato);color:#fff}

/* ---------- 导航 ---------- */
.nav{position:fixed;top:14px;left:0;right:0;z-index:50;width:min(1200px,100% - 2*var(--gut));margin-inline:auto;
  display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 8px 7px 7px;
  background:#fff;border:var(--bd);border-radius:999px;box-shadow:4px 4px 0 var(--ink)}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:17px;letter-spacing:.04em}
.logo img{width:42px;height:42px;transition:rotate .5s var(--pop)}
.logo:hover img{rotate:-12deg}
.links{display:flex;gap:2px}
.links a{padding:7px 14px;border-radius:99px;font-weight:700;font-size:15px;transition:background .2s,translate .25s var(--pop)}
.links a:hover{background:var(--sun-l);translate:0 -2px}
@media (max-width:640px){.logo span{display:none}.logo img{width:38px;height:38px}.links a{padding:6px 8px;font-size:13.5px}}
@media (max-width:420px){.links a{padding:6px 4px;font-size:12.5px}}

/* ---------- 首屏 ---------- */
.hero{position:relative;padding:clamp(118px,13vw,150px) 0 60px;overflow:hidden}
.hero .wrap{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(36px,5vw,72px);align-items:center}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr}}
.badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;background:var(--mint-l);border:var(--bd);border-radius:99px;
  box-shadow:3px 3px 0 var(--ink);font-weight:800;font-size:14px;rotate:-2deg}
.badge i{width:10px;height:10px;border-radius:50%;background:var(--mint);border:2px solid var(--ink)}
h1{margin:26px 0 24px}
.wordmark{width:min(480px,100%);height:auto;animation:pop-in .9s var(--pop) both;
  filter:drop-shadow(2.5px 0 0 var(--ink)) drop-shadow(-2.5px 0 0 var(--ink)) drop-shadow(0 2.5px 0 var(--ink)) drop-shadow(0 -2.5px 0 var(--ink)) drop-shadow(7px 7px 0 var(--tomato))}
@keyframes pop-in{from{scale:.6;rotate:-6deg;opacity:0}}
.tagline{font-size:clamp(28px,3.6vw,48px);font-weight:900;line-height:1.3;color:var(--ink)}
.hero-sub{max-width:520px;margin-top:16px;font-size:clamp(15px,1.25vw,17px)}
.cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.dd{position:absolute;width:var(--s,36px);height:auto;pointer-events:none;animation:float var(--t,6s) ease-in-out infinite}
@keyframes float{50%{translate:0 -14px;rotate:14deg}}

/* 团子裂变实验室 */
.lab{background:#fff;border:var(--bd);border-radius:26px;box-shadow:9px 9px 0 var(--ink);overflow:hidden;rotate:1.5deg}
.lab-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;padding:10px 12px 10px 16px;background:var(--sky-l);border-bottom:var(--bd);font-weight:800;font-size:15px}
.lab-bar i{width:13px;height:13px;border:2px solid var(--ink);border-radius:50%;background:var(--tomato)}
.lab-bar i:nth-of-type(2){background:var(--sun)}
.lab-bar i:nth-of-type(3){background:var(--mint)}
.lab-bar strong{margin-left:4px}
.lab-tools{display:flex;align-items:center;gap:8px;margin-left:auto}
.score{padding:3px 12px;background:#fff;border:2px solid var(--ink);border-radius:99px;font-size:13px;font-weight:700}
.score b{color:var(--tomato)}
.mini{padding:4px 12px;background:var(--sun);border:2px solid var(--ink);border-radius:99px;box-shadow:2px 2px 0 var(--ink);
  font:800 13px/1.4 var(--sans);color:var(--ink);cursor:pointer;transition:transform .12s,box-shadow .12s}
.mini:active{transform:translate(2px,2px);box-shadow:none}
.stage{position:relative}
#lab{display:block;width:100%;height:clamp(300px,34vw,430px);touch-action:manipulation}
.hint{position:absolute;left:16px;top:14px;padding:5px 14px;background:#fff;border:2px solid var(--ink);border-radius:14px 14px 14px 4px;
  font-weight:800;font-size:13px;pointer-events:none;animation:bob 2.2s ease-in-out infinite}
@keyframes bob{50%{translate:0 -6px}}

/* ---------- 团子串分隔 ---------- */
.skewer{position:relative;display:flex;justify-content:center;padding:44px var(--gut) 52px}
.skewer::before{content:"";position:absolute;z-index:0;top:50%;left:50%;width:min(100% - 2*var(--gut),620px);height:7px;translate:-50% -50%;
  background:var(--ink);border-radius:99px}
.skewer svg{position:relative;z-index:1;flex:none;width:clamp(42px,9.5vw,70px);height:auto;aspect-ratio:1;margin-inline:-3px;
  filter:drop-shadow(3px 3px 0 var(--ink))}

/* ---------- 通用区块 ---------- */
.sec{position:relative;padding:clamp(64px,8vw,110px) 0}
.tag{display:inline-flex;align-items:center;gap:8px;margin-bottom:20px;padding:6px 16px 6px 7px;background:var(--c,#fff);border:var(--bd);border-radius:99px;
  box-shadow:3px 3px 0 var(--ink);font-weight:800;font-size:14px;rotate:-2deg}
.tag b{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--ink);color:#fff;font:800 12px var(--round)}
.title{font-size:clamp(30px,4.2vw,54px);font-weight:900;line-height:1.3;margin-bottom:20px}
.lead{font-size:clamp(17px,1.5vw,20px);color:var(--ink);margin-bottom:14px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,5vw,80px);align-items:center}
@media (max-width:900px){.grid-2{grid-template-columns:1fr}}
.js .reveal{opacity:0;translate:0 40px;scale:.96;transition:opacity .6s var(--d,0s),translate .8s var(--d,0s) var(--pop),scale .8s var(--d,0s) var(--pop)}
.js .reveal.in{opacity:1;translate:none;scale:none}

/* ---------- 01 关于 ---------- */
.facts{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.fact{padding:12px 20px;background:var(--c);border:var(--bd);border-radius:18px;box-shadow:4px 4px 0 var(--ink);rotate:var(--r)}
.fact b{display:block;font-size:20px;font-weight:900;line-height:1.35}
.fact span{font-size:13px;font-weight:700;color:var(--soft)}
.split-card{background:#fff;border:var(--bd);border-radius:28px;box-shadow:8px 8px 0 var(--ink);padding:28px 16px 12px;rotate:-1.2deg}
.split-card svg{width:100%;height:auto;overflow:visible}
.split-card text{font:800 17px var(--sans);fill:var(--ink)}
.hop{animation:hop 2.4s var(--pop) infinite;animation-delay:var(--d,0s)}
@keyframes hop{0%,55%,100%{transform:translateY(0)}25%{transform:translateY(-14px)}}
.arrow{fill:none;stroke:var(--ink);stroke-width:3.5;stroke-linecap:round;stroke-linejoin:round}
.arrow.dash{stroke-dasharray:7 8;animation:march 1s linear infinite}
@keyframes march{to{stroke-dashoffset:-15}}

/* ---------- 02 工作室 ---------- */
.studio{position:relative;background:var(--sky);border:var(--bd);border-radius:36px;box-shadow:10px 10px 0 var(--ink);padding:clamp(26px,5vw,64px);overflow:hidden}
.studio p{color:#1f2a44}
.zg{margin:4px 0 32px;font:900 clamp(40px,10vw,140px)/1.05 var(--round);letter-spacing:.01em;color:#fff;
  -webkit-text-stroke:5px var(--ink);paint-order:stroke fill;text-shadow:6px 7px 0 var(--ink)}
.zg span{display:inline-block;animation:wave 2.6s ease-in-out infinite;animation-delay:calc(var(--i) * .09s)}
@keyframes wave{0%,50%,100%{translate:0 0}25%{translate:0 -12px}}
.pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;list-style:none}
.pills li{padding:6px 16px;background:var(--c);border:var(--bd);border-radius:99px;box-shadow:3px 3px 0 var(--ink);font-weight:800;font-size:14px;
  rotate:var(--r);transition:rotate .3s var(--pop),translate .3s var(--pop)}
.pills li:hover{rotate:0deg;translate:0 -3px}
.idcard{background:#fff;border:var(--bd);border-radius:24px;box-shadow:7px 7px 0 var(--ink);padding:22px 24px 12px;rotate:2deg}
.id-head{display:flex;align-items:center;gap:14px;padding-bottom:14px;margin-bottom:4px;border-bottom:2.5px dashed var(--ink)}
.id-head svg{width:62px;height:62px;flex-shrink:0}
.id-head b{display:block;font-size:20px;font-weight:900;line-height:1.3}
.id-head span{font:800 12px var(--round);letter-spacing:.1em;color:var(--soft)}
.idcard dl div{display:flex;gap:16px;padding:9px 0;border-bottom:1.5px dashed #ddd5c2}
.idcard dl div:last-child{border:0}
.idcard dt{flex-shrink:0;width:4.2em;font-weight:800;color:var(--soft)}
.idcard dd{font-weight:700}
.live{display:inline-block;width:11px;height:11px;margin-right:6px;border:2px solid var(--ink);border-radius:50%;background:var(--mint);animation:blink 1.4s infinite}
@keyframes blink{50%{opacity:.3}}

/* ---------- 03 理念 ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:40px 26px;margin-top:50px}
@media (max-width:1000px){.cards{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.cards{grid-template-columns:1fr}}
.card{position:relative;padding:26px 26px 28px;background:var(--c);border:var(--bd);border-radius:24px;box-shadow:5px 5px 0 var(--ink);rotate:var(--r,0deg);
  transition:opacity .6s var(--d,0s),translate .8s var(--d,0s) var(--pop),scale .8s var(--d,0s) var(--pop),rotate .3s var(--pop),transform .3s var(--pop),box-shadow .3s}
.card:hover{rotate:0deg;transform:translateY(-6px);box-shadow:9px 11px 0 var(--ink)}
.num{position:absolute;top:-17px;right:22px;display:grid;place-items:center;width:44px;height:44px;background:#fff;border:var(--bd);border-radius:50%;
  box-shadow:3px 3px 0 var(--ink);font:900 15px var(--round)}
.ico{display:grid;place-items:center;width:64px;height:64px;margin-bottom:16px;background:#fff;border:var(--bd);border-radius:18px}
.ico svg{width:40px;height:40px;overflow:visible}
.card:hover .ico{animation:wiggle .5s ease-in-out}
@keyframes wiggle{25%{rotate:-10deg}75%{rotate:10deg}}
.card h3{font-size:22px;font-weight:900}
.en{margin-bottom:10px;font:800 12px var(--round);letter-spacing:.1em;color:var(--soft);text-transform:uppercase}
.card p{color:#3d3a50;font-size:15.5px}

/* ---------- 04 流程 ---------- */
.journey{position:relative;margin-top:56px}
.road{position:absolute;left:12.5%;top:2px;width:75%;height:80px;overflow:visible}
.road path{fill:none;stroke:var(--ink);stroke-width:3;stroke-dasharray:10 10;stroke-linecap:round;animation:march 1.2s linear infinite}
.steps{position:relative;list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.steps li{position:relative;text-align:center}
.stop{display:grid;place-items:center;width:84px;height:84px;margin:0 auto 18px;background:var(--c);border:var(--bd);border-radius:50%;
  box-shadow:5px 5px 0 var(--ink);font:900 34px var(--round);transition:translate .3s var(--pop),rotate .3s var(--pop)}
.steps li:hover .stop{translate:0 -8px;rotate:-8deg}
.steps h3{font-size:22px;font-weight:900;line-height:1.4}
.steps h3 small{display:block;font:800 12px var(--round);letter-spacing:.12em;color:var(--soft)}
.steps p{margin-top:8px;font-size:15px}
@media (max-width:860px){
  .road{display:none}
  .steps{grid-template-columns:1fr;gap:30px}
  .steps::before{content:"";position:absolute;left:31px;top:20px;bottom:20px;border-left:3px dashed var(--ink)}
  .steps li{display:grid;grid-template-columns:64px 1fr;gap:0 18px;text-align:left}
  .stop{grid-row:span 3;width:64px;height:64px;margin:0;font-size:26px}
}

/* ---------- 05 加入 ---------- */
.join{position:relative;background:var(--sun);border:var(--bd);border-radius:36px;box-shadow:10px 10px 0 var(--ink);text-align:center;overflow:hidden;
  padding:clamp(40px,6vw,76px) clamp(20px,5vw,64px) clamp(120px,12vw,150px)}
.join .hl::after{background:#fff}
.join-title{font-size:clamp(34px,5.4vw,72px);font-weight:900;line-height:1.28;margin-bottom:20px}
.join .lead{max-width:640px;margin:0 auto 28px}
.peek{position:absolute;left:0;right:0;bottom:-30px;display:flex;justify-content:center;align-items:flex-end;gap:clamp(6px,3vw,40px);pointer-events:none}
.peek svg{width:var(--s);height:var(--s);animation:peek 3.2s var(--pop) infinite;animation-delay:var(--d)}
@keyframes peek{0%,100%{translate:0 35%}40%,65%{translate:0 0}}

/* ---------- 页脚 ---------- */
.foot{position:relative;margin-top:50px;padding:42px 0 46px;background:var(--ink);color:rgba(255,246,230,.72)}
.foot::before{content:"";position:absolute;left:0;right:0;top:-17px;height:18px;
  background:radial-gradient(circle at 18px 18px,var(--ink) 17.5px,transparent 18.5px) 0 0/36px 18px repeat-x}
.foot-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px 32px;font-size:14px}
.foot-logo{height:42px;width:auto}
.foot-legal{display:flex;flex-wrap:wrap;gap:6px 24px}
.foot a{transition:color .2s}
.foot a:hover,.foot [aria-current]{color:var(--sun)}

/* ---------- 法律页（隐私 / 条款 / 广告） ---------- */
.doc{width:min(860px,100% - 2*var(--gut));margin:clamp(100px,12vw,128px) auto 0;padding:clamp(24px,4vw,48px);overflow-wrap:break-word;
  background:#fff;border:var(--bd);border-radius:28px;box-shadow:8px 8px 0 var(--ink)}
.doc h1{font-size:clamp(28px,4vw,42px);font-weight:900;line-height:1.3}
.doc h2{margin-top:30px;font-size:20px;font-weight:900;line-height:1.4}
.doc p,.doc li{margin-top:8px;color:#3d3a50}
.doc ul,.doc ol{padding-left:1.4em}
.doc a{text-decoration:underline;text-decoration-color:var(--tomato);text-decoration-thickness:2px;text-underline-offset:3px}
.doc .upd{font-size:14px;font-weight:700;color:var(--soft)}
.doc pre{margin-top:10px;padding:12px 16px;overflow-x:auto;background:var(--sun-l);border:var(--bd);border-radius:14px;font:700 14px/1.6 ui-monospace,Consolas,monospace}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;translate:none;scale:none}
}