@font-face{font-family:"Quicksand";font-weight:700;font-style:normal;font-display:swap;src:url(assets/fonts/quicksand-700.woff2) format("woff2")}

:root{
  /* 品牌色：取自 logo */
  --dark:#0f4d2a; --green:#6db446; --cream:#f5f9ef; --line:rgba(15,77,42,.1);
  /* 文字色：标题 / 正文 / 次要 */
  --ink:#0f4d2a; --text:#33443a; --muted:#6f7d74;
  /* 字体：中文统一苹方/雅黑，英文展示字与 logo 同为 Quicksand */
  --sans:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --en:"Quicksand",var(--sans);
  /* 字号：标题 / 正文 / 小字 / 注释 */
  --fs-h2:clamp(26px,2.6vw,32px); --fs-body:16px; --fs-sm:14px; --fs-xs:12px;
  --nav-h:72px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:auto}
body{font-family:var(--sans);font-size:var(--fs-body);color:var(--text);background:#fff;line-height:1.8;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font:inherit}

.section-title{font-size:var(--fs-h2);font-weight:600;color:var(--ink);letter-spacing:.08em;line-height:1.3}

/* ---------- 顶栏：顶部透明，滚动后白底 ---------- */
.nav{position:fixed;inset:0 0 auto;z-index:50;height:var(--nav-h);color:var(--ink);transition:background .3s,box-shadow .3s}
.nav.is-scrolled{background:rgba(255,255,255,.96);box-shadow:0 1px 0 var(--line);backdrop-filter:blur(8px)}
.nav__inner{max-width:1240px;height:100%;margin:0 auto;padding:0 32px;display:flex;align-items:center;justify-content:space-between}
.brand__logo{width:auto;height:44px}
.nav__links{display:flex;gap:40px;font-size:var(--fs-sm);font-weight:600;letter-spacing:.08em}
.nav__links a{position:relative;opacity:.8;transition:opacity .2s}
.nav__links a:hover{opacity:1}
.nav__links a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--green);transform:scaleX(0);transition:transform .25s}
.nav__links a:hover::after{transform:scaleX(1)}
.nav__toggle{display:none;background:none;border:0;width:32px;height:32px;cursor:pointer}
.nav__toggle span{display:block;height:2px;margin:7px 4px;background:var(--ink);transition:transform .25s}

/* ---------- 首屏 ---------- */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;flex-direction:column;justify-content:center;
  padding:calc(var(--nav-h) + 24px) 24px 96px;text-align:center;overflow:hidden;color:var(--ink);
  background:radial-gradient(ellipse 70% 60% at 50% 100%,#e8f3dc 0%,transparent 70%),linear-gradient(#fff,var(--cream))}
.hero__word{line-height:0}
.wordmark{display:inline-block;width:min(640px,82vw);height:auto;overflow:visible}
.wm-c{animation:wmFloat 2.8s infinite;animation-delay:calc(var(--i) * .14s - 2.8s)}
@keyframes wmFloat{
  0%,100%{transform:translateY(0);animation-timing-function:cubic-bezier(.37,0,.63,1)}
  50%{transform:translateY(-80px);animation-timing-function:cubic-bezier(.37,0,.63,1)}
}
@media (prefers-reduced-motion:reduce){.wm-c{animation:none}}
/* 彩蛋：字母跳动 + 角色气泡 */
.wordmark{cursor:pointer;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}
.wm-j{transform-box:fill-box;transform-origin:50% 100%}
.wm-j.is-jump{animation:wmJump .62s}
@keyframes wmJump{
  0%{transform:translateY(0) scale(1,1);animation-timing-function:cubic-bezier(.3,.7,.4,1)}
  12%{transform:translateY(0) scale(1.12,.86);animation-timing-function:cubic-bezier(.2,.8,.3,1)}
  45%{transform:translateY(-38%) scale(.94,1.08);animation-timing-function:cubic-bezier(.6,0,.8,.5)}
  78%{transform:translateY(0) scale(1.1,.9);animation-timing-function:cubic-bezier(.3,.7,.4,1)}
  100%{transform:translateY(0) scale(1,1)}
}
.egg-bubble{--bg:var(--dark);--dk:var(--dark);--fg:#fff;position:absolute;z-index:5;padding:10px 22px;border-radius:99px;
  background:var(--bg);color:var(--fg);font-size:var(--fs-sm);font-weight:600;letter-spacing:.06em;line-height:1.4;white-space:nowrap;
  filter:drop-shadow(0 2px 3px color-mix(in srgb,var(--dk) 30%,transparent)) drop-shadow(0 8px 16px color-mix(in srgb,var(--dk) 40%,transparent));pointer-events:none;
  transform:translateY(calc(-100% - 10px)) scale(0);transform-origin:var(--tx) calc(100% + 10px);opacity:0}
.egg-bubble::after{content:"";position:absolute;left:var(--tx);bottom:-5px;width:12px;height:12px;margin-left:-6px;
  background:var(--bg);border-bottom-right-radius:2px;transform:rotate(45deg)}
.egg-bubble.is-pop{opacity:1;transform:translateY(calc(-100% - 10px)) scale(1);
  transition:transform .5s cubic-bezier(.34,1.56,.64,1),opacity .18s ease-out}
.egg-bubble.is-out{opacity:0;transform:translateY(calc(-100% - 10px)) scale(.6);
  transition:transform .24s cubic-bezier(.55,0,.75,.4),opacity .24s ease-in}
@media (max-width:600px){.egg-bubble{padding:8px 16px;font-size:13px}}
@media (prefers-reduced-motion:reduce){.wm-j.is-jump{animation:none}.egg-bubble.is-pop,.egg-bubble.is-out{transition:opacity .2s}}
.hero__slogan{margin-top:24px;font-size:18px;letter-spacing:.4em;color:var(--ink)}
.hero__sub{margin-top:4px;font-family:var(--en);font-weight:700;font-size:var(--fs-xs);letter-spacing:.4em;color:var(--ink)}
.hero__art{position:relative;width:min(1100px,100%);margin:40px auto 0}
.hero__more{position:absolute;left:50%;bottom:28px;width:48px;height:48px;margin-left:-24px;display:grid;place-items:center;border-radius:50%;
  color:var(--dark);animation:moreFloat 2.4s ease-in-out infinite}
.hero__more svg{width:30px;height:30px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;opacity:.75;transition:opacity .2s}
.hero__more:hover svg{opacity:1}
@keyframes moreFloat{0%,100%{transform:translateY(-6px)}50%{transform:translateY(6px)}}
@media (prefers-reduced-motion:reduce){.hero__more{animation:none}}
.hero__art img{position:relative;z-index:1;display:block;width:100%;height:auto}
/* 底部投影：按角色着地位置生成（tools/gen-hero-shadow.py），投影图左右各比插画宽 13.81%，覆盖插画第 560~780 行（共 715 行），整体再上移 2.48% */
.hero__art::before{content:"";position:absolute;left:-13.81%;right:-13.81%;top:75.84%;height:30.77%;pointer-events:none;
  background:url(assets/img/hero2-shadow.webp?v=7) center/100% 100% no-repeat;
  filter:blur(6px);opacity:.45}

/* ---------- 产品通栏 ---------- */
.game{position:relative;min-height:600px;display:flex;align-items:center;color:#fff;overflow:hidden;background:#173d27}
.game+.game{margin-top:-1px}
.game__bg{position:absolute;left:0;right:0;top:-12%;bottom:-12%;background:var(--pos,center)/cover no-repeat;opacity:0;transition:opacity .6s;will-change:transform}
.game.is-near .game__bg{background-image:var(--bg);opacity:1}
/* 遮罩放在背景层内，和背景同一合成层、同步取整，避免卡片接缝处露出一行未压暗的背景 */
.game__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(var(--shade,8,28,16),.78) 0%,rgba(var(--shade,8,28,16),.5) 34%,rgba(var(--shade,8,28,16),.16) 52%,rgba(var(--shade,8,28,16),0) 68%)}
.game__inner{position:relative;z-index:2;width:100%;max-width:1240px;margin:0 auto;padding:80px 32px}
.game__inner>*{max-width:480px}
.game__icon{width:88px;height:88px;border-radius:22px;border:3px solid #fff;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.game__title{margin-top:20px;font-size:var(--fs-h2);font-weight:600;letter-spacing:.08em;line-height:1.3}
.game__tags{display:flex;gap:8px;margin-top:12px}
.game__tags li{padding:1px 12px;font-size:var(--fs-xs);border-radius:99px;border:1px solid rgba(255,255,255,.45)}
.game__stat{margin-top:20px;display:flex;align-items:baseline;gap:12px}
.game__stat b{font-family:var(--en);font-weight:700;font-size:28px;letter-spacing:.02em;line-height:1}
.game__stat span{font-size:var(--fs-sm);opacity:.8}
.game__desc{margin-top:12px;opacity:.9}
.game__btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;max-width:none!important}

/* ---------- 按钮：主按钮品牌深绿，游玩入口白底 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 26px;border:0;border-radius:99px;font-size:var(--fs-sm);font-weight:600;letter-spacing:.06em;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn--main{background:var(--dark);color:#fff}
.btn--main:hover{box-shadow:0 8px 20px rgba(15,77,42,.25)}
.btn--play{background:#fff;color:var(--dark);box-shadow:0 6px 18px rgba(0,0,0,.18)}
.btn--play:hover,.qr.is-open .btn--play{box-shadow:0 10px 24px rgba(0,0,0,.26)}
.pi{display:inline-grid;place-items:center;width:20px;height:20px;border-radius:6px;background:var(--dark);color:#fff;font-style:normal;font-size:11px;font-weight:700;line-height:1}
.pi--img{display:inline-block;background:none;border-radius:0;object-fit:contain}

/* ---------- 二维码弹层 ---------- */
.qr{position:relative}
.qr__pop{position:absolute;left:50%;bottom:calc(100% + 14px);z-index:5;display:flex;gap:12px;padding:12px 12px 8px;background:#fff;border-radius:16px;box-shadow:0 14px 40px rgba(0,0,0,.25);text-align:center;color:var(--dark);
  opacity:0;visibility:hidden;transform:translate(-50%,8px) scale(.96);transform-origin:50% 100%;transition:opacity .22s,transform .22s,visibility .22s}
.qr__pop::after{content:"";position:absolute;left:50%;top:100%;margin-left:-8px;border:8px solid transparent;border-top-color:#fff}
.qr:hover .qr__pop,.qr.is-open .qr__pop{opacity:1;visibility:visible;transform:translate(-50%,0) scale(1)}
.qr__pop{flex-direction:column}
.qr__pop>.qr__code,.qr__pop>div{width:150px}
.qr__pop p{margin-top:6px;font-size:var(--fs-xs);font-weight:600;white-space:nowrap}
.qr__code{position:relative;aspect-ratio:1;border-radius:10px;overflow:hidden;border:1.5px dashed #b9cfae;
  background:repeating-conic-gradient(#eef4ea 0 25%,#fff 0 50%) 0 0/16px 16px}
.qr__code::before{content:"二维码待替换";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);padding:3px 8px;font-size:11px;font-weight:600;color:var(--dark);background:#fff;border-radius:6px;white-space:nowrap}
.qr__code img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#fff;z-index:1}

/* ---------- 理念 / 团队 ---------- */
.philo{position:relative;display:flex;align-items:center;justify-content:center;gap:24px;padding:110px 24px 80px;background:#fff;overflow:hidden}
.philo__body{max-width:560px;text-align:center}
.philo__body p{margin-top:18px}
.philo__side{width:min(240px,18vw)}
.philo__nums{display:flex;justify-content:center;gap:56px;margin-top:40px}
.philo__nums b{display:block;font-family:var(--en);font-weight:700;font-size:28px;color:var(--ink);line-height:1.3}
.philo__nums span{font-size:var(--fs-xs);color:var(--muted)}
.team{display:flex;align-items:center;justify-content:center;gap:56px;padding:20px 32px 110px;background:#fff}
.team__text{max-width:400px}
.team__text p{margin-top:18px}
.team__art{width:min(620px,48vw)}

/* ---------- 加入 / 研发合作 ---------- */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:1140px;margin:0 auto;padding:100px 24px 0}
.duo__card{padding:56px 8%;text-align:center;background:var(--cream);border-radius:20px}
.duo__card p{max-width:400px;margin:16px auto 28px}

/* ---------- 联系 ---------- */
.contact{padding:100px 24px;text-align:center}
.contact__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:1100px;margin:40px auto 0}
.contact__grid>div{padding:26px 16px;border:1px solid var(--line);border-radius:16px}
.contact__grid h3{font-size:var(--fs-sm);font-weight:600;color:var(--ink);letter-spacing:.08em}
.contact__grid p{margin-top:6px;font-size:var(--fs-sm);color:var(--muted);word-break:break-all}
.contact__grid a:hover{color:var(--ink)}

/* ---------- 页脚 ---------- */
.footer{padding:48px 24px 36px;background:linear-gradient(rgba(15,77,42,.92),rgba(15,77,42,.92)),url(assets/img/footer-forest-gamepad.jpg) center 42%/cover no-repeat var(--dark);color:rgba(255,255,255,.65);font-size:var(--fs-xs);text-align:center}
.footer__top{display:flex;align-items:center;justify-content:space-between;max-width:1100px;margin:0 auto 28px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer__brand{display:flex;align-items:center;gap:14px;text-align:left;color:#fff}
.footer__brand img{width:64px;height:64px}
.footer__brand b{display:block;font-family:var(--en);font-weight:700;font-size:18px;letter-spacing:.16em;line-height:1.3}
.footer__brand small{font-size:var(--fs-xs);opacity:.65}
.footer__top nav{display:flex;gap:28px;flex-wrap:wrap;font-size:var(--fs-sm)}
.footer__top nav a{color:rgba(255,255,255,.75)}
.footer__top nav a:hover{color:#fff}
.footer__health{max-width:900px;margin:0 auto 8px;line-height:1.9}
.footer__legal a:hover{color:#fff;text-decoration:underline}
.sep{margin:0 10px;opacity:.4}

/* ---------- 惯性平滑滚动 + 渐入（参考 Habby） ---------- */
.has-smooth #smooth{position:fixed;top:0;left:0;width:100%;will-change:transform}
.reveal{opacity:0;transform:translateY(32px);transition:opacity .8s cubic-bezier(.2,.7,.2,1) var(--d,0s),transform .8s cubic-bezier(.2,.7,.2,1) var(--d,0s)}
.reveal.is-in{opacity:1;transform:none}
.philo__side--l.reveal.is-in{transform:rotate(-6deg)}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- 移动端 ---------- */
@media (max-width:860px){
  :root{--nav-h:60px;--fs-body:15px}
  .nav__inner{padding:0 18px}
  .brand__logo{height:36px}
  .nav__toggle{display:block}
  .nav__links{position:fixed;top:var(--nav-h);left:0;right:0;flex-direction:column;gap:0;background:#fff;max-height:0;overflow:hidden;transition:max-height .3s}
  .nav__links a{padding:16px 24px;border-top:1px solid var(--line)}
  .menu-open .nav{background:#fff}
  .menu-open .nav__links{max-height:400px}
  .menu-open .nav__toggle span:first-child{transform:translateY(4.5px) rotate(45deg)}
  .menu-open .nav__toggle span:last-child{transform:translateY(-4.5px) rotate(-45deg)}
  .hero{padding:calc(var(--nav-h) + 16px) 16px 96px}
  .hero__slogan{font-size:16px;letter-spacing:.3em}
  .hero__sub{letter-spacing:.25em}
  .game{min-height:0;align-items:flex-end}
  .game__bg{top:0;bottom:0;background-size:auto 100%}
  .game.is-near .game__bg{background-image:var(--bg-m);background-position:var(--pos-m,var(--pos,center))}
  .game__bg::after{background:linear-gradient(0deg,rgba(var(--shade,8,28,16),.9) 0%,rgba(var(--shade,8,28,16),.6) 55%,rgba(var(--shade,8,28,16),.15) 100%)}
  .game__inner{padding:200px 20px 48px}
  .game__inner>*{max-width:none}
  .qr__pop{left:0;transform:translate(0,8px) scale(.96);transform-origin:20% 100%}
  .qr:hover .qr__pop,.qr.is-open .qr__pop{transform:translate(0,0) scale(1)}
  .qr__pop::after{left:40px}
  .qr__pop>.qr__code,.qr__pop>div{width:130px}
  .philo{padding:80px 20px 56px}
  .philo__side{display:none}
  .philo__nums{gap:28px}
  .team{flex-direction:column;gap:28px;padding:0 20px 80px;text-align:center}
  .team__art{width:100%}
  .duo{grid-template-columns:1fr;padding:72px 20px 0}
  .contact{padding:72px 20px}
  .contact__grid{grid-template-columns:1fr 1fr}
  .footer__top{flex-direction:column;gap:20px}
  .footer__top nav{justify-content:center;gap:16px}
}

/* 中英切换 */
.i18n-wait body{opacity:0}
body{transition:opacity .2s}
.nav__links{margin-left:auto}
.nav__lang{margin-left:32px;padding:4px 12px;border:1.5px solid currentColor;border-radius:999px;background:none;color:inherit;font:700 13px/1.4 var(--en);letter-spacing:.06em;cursor:pointer;opacity:.8;transition:opacity .2s}
.nav__lang:hover{opacity:1}
html[lang=en] .hero__sub{display:none}
html[lang=en] .hero__slogan{font-family:var(--en);font-weight:700;letter-spacing:.2em}
html[lang=en] .nav__links{letter-spacing:.02em}
@media (max-width:860px){.nav__lang{margin-left:auto;margin-right:12px}}