/* ============ 亿景图卫星视角 · Tsinghua Satellite View ============ */
@font-face{
  font-family:'Orbitron';font-style:normal;font-weight:400 900;font-display:swap;
  src:url('../assets/fonts/orbitron.woff2') format('woff2');
}
@font-face{
  font-family:'Space Grotesk';font-style:normal;font-weight:300 700;font-display:swap;
  src:url('../assets/fonts/spacegrotesk.woff2') format('woff2');
}
:root{
  --green:#6AB427;--green-dark:#4a8618;--green-deep:#2f5c10;
  --ink:#22331f;--muted:#5c6f59;--bg:#ffffff;--mint:#f3f9ee;
  --mint2:#eaf4e0;--line:#dce9d2;--card:#ffffff;
  --shadow:0 18px 45px -18px rgba(74,134,24,.35);
  --radius:18px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  --font-en:"Space Grotesk","Orbitron","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Orbitron","Space Grotesk",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-cn);color:var(--ink);background:var(--bg);line-height:1.75;overflow-x:hidden}
.en body,body.en{font-family:var(--font-en)}
img{max-width:100%;display:block}
a{color:var(--green-dark)}
::selection{background:var(--green);color:#fff}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:200;background:rgba(255,255,255,.9);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);transition:transform .35s ease,box-shadow .3s}
.site-header.hide{transform:translateY(-110%)}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.logo .mark{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--green),var(--green-deep));
  display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px -6px rgba(74,134,24,.7);position:relative;overflow:hidden}
.logo .mark::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 70% 20%,rgba(255,255,255,.5),transparent 55%)}
.logo .mark svg{width:26px;height:26px;position:relative;z-index:1}
.logo b{font-size:19px;letter-spacing:.5px}
.logo b em{font-style:normal;color:var(--green-dark);background:linear-gradient(120deg,var(--green) 20%,#9ede5b 50%,var(--green) 80%);
  background-size:200% auto;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  animation:shine 4s linear infinite}
@keyframes shine{to{background-position:200% center}}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{text-decoration:none;color:var(--ink);font-size:15px;padding:9px 16px;border-radius:999px;position:relative;transition:.25s;white-space:nowrap}
.main-nav a:hover{color:var(--green-dark);background:var(--mint)}
.main-nav a.cur,.main-nav span.cur{color:#fff;background:linear-gradient(135deg,var(--green),var(--green-dark));box-shadow:0 8px 18px -8px rgba(74,134,24,.8)}
.main-nav span.cur{padding:9px 16px;border-radius:999px;font-size:15px;white-space:nowrap;cursor:default}
.lang-pill{font-family:var(--font-num);font-size:12px!important;border:1px solid var(--green)!important;color:var(--green-dark)!important;margin-left:8px}
.burger{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;width:42px;height:42px;cursor:pointer;color:var(--green-dark);font-size:20px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:
  radial-gradient(900px 420px at 85% -60px,rgba(106,180,39,.16),transparent 60%),
  radial-gradient(700px 380px at 8% 10%,rgba(106,180,39,.10),transparent 60%),
  linear-gradient(180deg,#fdfffb 0%,#f2f8ec 60%,#ffffff 100%)}
.hero::before{content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(106,180,39,.28) 1.2px,transparent 1.3px);
  background-size:26px 26px;mask-image:radial-gradient(closest-side at 50% 30%,#000 30%,transparent 100%);opacity:.5;pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center;padding:64px 0 30px}
.kicker{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--green);
  color:var(--green-dark);font-size:13px;padding:6px 14px;border-radius:999px;box-shadow:0 4px 14px -6px rgba(74,134,24,.5)}
.kicker .dot{width:8px;height:8px;border-radius:50%;background:var(--green);animation:blink 1.6s infinite}
@keyframes blink{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(106,180,39,.5)}50%{opacity:.5;box-shadow:0 0 0 7px rgba(106,180,39,0)}}
.hero h1{font-size:clamp(30px,4.4vw,50px);line-height:1.28;margin:20px 0 14px;letter-spacing:1px}
.hero h1 .hl{color:var(--green-dark);position:relative;white-space:nowrap}
.hero h1 .hl::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:12px;background:rgba(106,180,39,.22);z-index:-1;border-radius:6px}
.hero .sub{color:var(--muted);font-size:16px;max-width:560px;min-height:56px}
.hero .sub .cursor{display:inline-block;width:2px;height:1.1em;background:var(--green);vertical-align:-2px;animation:blink 1s infinite}
.meta-chips{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0}
.chip{display:flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 16px;box-shadow:var(--shadow);font-size:14px}
.chip i{font-style:normal;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--green),var(--green-dark));
  display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff;flex:none}
.chip small{display:block;color:var(--muted);font-size:11px;line-height:1.3}
.chip b{font-family:var(--font-num);font-size:16px;color:var(--green-deep);letter-spacing:.5px}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:6px}
.btn{display:inline-flex;align-items:center;gap:9px;text-decoration:none;border-radius:999px;padding:13px 28px;font-size:15px;font-weight:700;
  transition:transform .2s,box-shadow .25s;cursor:pointer;border:none}
.btn.green{background:linear-gradient(135deg,var(--green),var(--green-dark));color:#fff;box-shadow:0 12px 26px -10px rgba(74,134,24,.8)}
.btn.green:hover{transform:translateY(-3px);box-shadow:0 18px 32px -10px rgba(74,134,24,.9)}
.btn.ghost{background:#fff;color:var(--green-dark);border:1.5px solid var(--green)}
.btn.ghost:hover{background:var(--mint);transform:translateY(-3px)}

/* space scene */
.scene{position:relative;height:440px}
.earth{position:absolute;right:-40px;bottom:-190px;width:400px;height:400px;border-radius:50%;
  background:radial-gradient(circle at 32% 28%,#bfe6a8 0%,#7cc24e 22%,#3f8f2a 45%,#1e5c33 70%,#0d3a24 100%);
  box-shadow:0 0 0 14px rgba(106,180,39,.12),0 0 90px 10px rgba(106,180,39,.35),inset -30px -30px 70px rgba(0,0,0,.45);overflow:hidden}
.earth::before{content:"";position:absolute;inset:18px 60px;border-radius:50%;background:rgba(255,255,255,.16);filter:blur(2px);transform:rotate(-18deg)}
.earth::after{content:"";position:absolute;left:8%;top:34%;width:50%;height:26%;border-radius:50%;
  background:radial-gradient(closest-side,rgba(255,255,255,.75),transparent);filter:blur(1px);animation:cloud 9s ease-in-out infinite alternate}
@keyframes cloud{to{transform:translateX(46px)}}
.orbit{position:absolute;border:1.5px dashed rgba(74,134,24,.45);border-radius:50%}
.orbit.o1{width:430px;height:150px;left:-20px;top:60px;transform:rotate(-14deg)}
.orbit.o2{width:340px;height:340px;right:10px;top:-40px;border-style:solid;border-color:rgba(74,134,24,.22)}
.sat-runner{position:absolute;inset:0;animation:spin 14s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.sat-runner .sat{position:absolute;top:-19px;left:50%;margin-left:-19px;animation:spinback 14s linear infinite}
@keyframes spinback{to{transform:rotate(-360deg)}}
.sat-runner.r2{animation-duration:22s;animation-direction:reverse}
.sat-runner.r2 .sat{animation:spinback2 22s linear infinite}
@keyframes spinback2{to{transform:rotate(360deg)}}
.trail{position:absolute;left:120px;top:-10px;width:2px;height:150px;
  background:linear-gradient(180deg,transparent,var(--green));opacity:.5}
.rocket-zone{position:absolute;left:30px;bottom:0;width:120px;height:400px}
.rocket{position:absolute;left:34px;bottom:0;width:52px;animation:launch 7s ease-in infinite}
.rocket-zone.launch .rocket{animation:launch 4.2s cubic-bezier(.3,.6,.4,1) 1}
@keyframes launch{0%{transform:translateY(330px) scale(.7);opacity:0}8%{opacity:1}75%{opacity:1}100%{transform:translateY(-40px) scale(1);opacity:0}}
.flame{transform-origin:50% 0;animation:flick .18s infinite alternate}
@keyframes flick{from{transform:scaleY(.85)}to{transform:scaleY(1.18)}}
.smoke span{position:absolute;bottom:6px;left:50%;border-radius:50%;background:rgba(120,140,120,.4);animation:puff 2.4s ease-out infinite}
.smoke span:nth-child(1){width:22px;height:22px;margin-left:-30px;animation-delay:0s}
.smoke span:nth-child(2){width:30px;height:30px;margin-left:8px;animation-delay:.5s}
.smoke span:nth-child(3){width:18px;height:18px;margin-left:-12px;animation-delay:1.1s}
@keyframes puff{0%{transform:translateY(0) scale(.5);opacity:.7}100%{transform:translateY(60px) scale(1.6);opacity:0}}
.star{position:absolute;border-radius:50%;background:var(--green);animation:tw 2.6s ease-in-out infinite}
@keyframes tw{0%,100%{opacity:.25;transform:scale(.8)}50%{opacity:1;transform:scale(1.25)}}
.shoot{position:absolute;width:120px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--green),transparent);
  transform:rotate(-24deg);animation:shoot 6s linear infinite;opacity:0}
@keyframes shoot{0%,88%{opacity:0;transform:rotate(-24deg) translateX(0)}90%{opacity:1}96%{opacity:0;transform:rotate(-24deg) translateX(-190px)}100%{opacity:0}}
.float-tag{position:absolute;background:rgba(255,255,255,.92);border:1px solid var(--green);color:var(--green-deep);
  font-family:var(--font-num);font-size:11.5px;padding:5px 12px;border-radius:999px;box-shadow:0 6px 16px -8px rgba(74,134,24,.7);
  animation:floaty 4.5s ease-in-out infinite;white-space:nowrap}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.replay{position:absolute;left:0;bottom:6px;z-index:5}

/* ticker */
.ticker{background:linear-gradient(90deg,var(--green-deep),var(--green-dark) 40%,var(--green) 100%);color:#fff;overflow:hidden;white-space:nowrap}
.ticker .track{display:inline-block;padding:9px 0;animation:tick 26s linear infinite;font-family:var(--font-num);font-size:13px;letter-spacing:1px}
.ticker .track span{margin:0 26px}
@keyframes tick{to{transform:translateX(-50%)}}

/* ---------- article ---------- */
.article{padding:56px 0 20px}
.crumb{font-size:13.5px;color:var(--muted);margin-bottom:14px}
.crumb a{color:var(--green-dark);text-decoration:none}
.crumb a:hover{text-decoration:underline}
.post-title{font-size:clamp(24px,3.4vw,36px);line-height:1.4;margin:6px 0 12px}
.post-title .t-ico{display:inline-flex;width:52px;height:52px;border-radius:16px;vertical-align:-10px;margin-right:12px;
  background:linear-gradient(135deg,var(--green),var(--green-dark));color:#fff;font-size:28px;align-items:center;justify-content:center;
  box-shadow:0 10px 22px -8px rgba(74,134,24,.7);animation:floaty 5s ease-in-out infinite}
.byline{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:14px;color:var(--muted);
  border-top:1px dashed var(--line);border-bottom:1px dashed var(--line);padding:12px 2px;margin-bottom:8px}
.byline .date{font-family:var(--font-num);background:var(--mint);border:1px solid var(--line);padding:3px 12px;border-radius:999px;color:var(--green-deep)}
.tag{display:inline-block;text-decoration:none;font-size:13px;color:var(--green-dark);border:1px solid var(--green);
  padding:2px 13px;border-radius:999px;margin:2px 3px;transition:.25s;background:#fff}
.tag:hover{background:var(--green);color:#fff;transform:translateY(-2px)}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:26px 0}
.fact{background:linear-gradient(180deg,#fff,var(--mint));border:1px solid var(--line);border-top:4px solid var(--green);
  border-radius:var(--radius);padding:20px;text-align:center;box-shadow:var(--shadow);position:relative;overflow:hidden;transition:transform .25s}
.fact:hover{transform:translateY(-6px)}
.fact::after{content:"";position:absolute;right:-30px;top:-30px;width:110px;height:110px;border-radius:50%;background:radial-gradient(circle,rgba(106,180,39,.18),transparent 70%)}
.fact i{font-style:normal;font-size:30px}
.fact b{display:block;font-family:var(--font-num);font-size:26px;color:var(--green-deep);margin:6px 0 2px}
.fact span{font-size:13.5px;color:var(--muted)}
.prose{font-size:16.5px;color:#33402f}
.prose p{margin:14px 0;text-align:justify}
.prose p b{color:var(--green-deep)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:26px 0}
.stat{background:#fff;border:1px dashed var(--green);border-radius:var(--radius);padding:16px 8px;text-align:center}
.stat b{font-family:var(--font-num);font-size:30px;color:var(--green-dark);display:block;line-height:1.2}
.stat b small{font-size:15px}
.stat span{font-size:13px;color:var(--muted)}
h2.sec{font-size:clamp(21px,2.8vw,28px);margin:44px 0 6px;display:flex;align-items:center;gap:12px}
h2.sec .h-ico{flex:none;width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,var(--green),var(--green-dark));
  color:#fff;font-size:23px;display:inline-flex;align-items:center;justify-content:center;box-shadow:0 8px 18px -8px rgba(74,134,24,.8)}
.sec-desc{color:var(--muted);font-size:14.5px;margin-bottom:18px}

/* viewer */
.viewer{background:#0f2410;border-radius:22px;padding:18px;box-shadow:0 30px 60px -25px rgba(20,50,15,.55);position:relative;overflow:hidden}
.viewer::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(106,180,39,.5) 1px,transparent 1.4px);background-size:22px 22px;opacity:.25}
.vstage{position:relative;border-radius:14px;overflow:hidden;border:1px solid rgba(106,180,39,.55)}
.vstage img{width:100%;height:clamp(280px,52vw,560px);object-fit:cover;transition:opacity .45s}
.vstage.fading img{opacity:0}
.vstage .scanline{position:absolute;left:0;right:0;top:-8%;height:9%;pointer-events:none;
  background:linear-gradient(180deg,transparent,rgba(106,180,39,.35) 55%,rgba(190,255,150,.75) 92%,transparent);
  animation:scan 4.5s linear infinite}
@keyframes scan{to{top:108%}}
.v-corner{position:absolute;width:34px;height:34px;border:3px solid var(--green);z-index:4}
.v-corner.tl{top:12px;left:12px;border-right:none;border-bottom:none;border-radius:8px 0 0 0}
.v-corner.tr{top:12px;right:12px;border-left:none;border-bottom:none;border-radius:0 8px 0 0}
.v-corner.bl{bottom:12px;left:12px;border-right:none;border-top:none;border-radius:0 0 0 8px}
.v-corner.br{bottom:12px;right:12px;border-left:none;border-top:none;border-radius:0 0 8px 0}
.vbadge{position:absolute;top:14px;left:50%;transform:translateX(-50%);z-index:4;background:rgba(10,25,8,.72);color:#c9f0a4;
  font-family:var(--font-num);font-size:12px;letter-spacing:1px;padding:5px 16px;border-radius:999px;border:1px solid rgba(106,180,39,.6)}
.vcap{position:absolute;left:14px;bottom:12px;z-index:4;background:rgba(10,25,8,.72);color:#fff;font-size:13px;
  padding:7px 15px;border-radius:10px;border:1px solid rgba(106,180,39,.6);max-width:80%}
.hotspot{position:absolute;z-index:5;transform:translate(-50%,-50%);cursor:default}
.hotspot .pin{width:16px;height:16px;border-radius:50%;background:var(--green);border:3px solid #fff;
  box-shadow:0 0 0 0 rgba(106,180,39,.6);animation:ping 2s infinite;display:block;margin:0 auto}
@keyframes ping{70%{box-shadow:0 0 0 14px rgba(106,180,39,0)}100%{box-shadow:0 0 0 0 rgba(106,180,39,0)}}
.hotspot .lab{display:block;margin-top:5px;background:rgba(10,25,8,.78);color:#dff5c8;font-size:12px;padding:2px 10px;border-radius:999px;white-space:nowrap;border:1px solid rgba(106,180,39,.7)}
.thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:14px;position:relative;z-index:2}
.thumb{border:1px solid rgba(106,180,39,.4);border-radius:12px;overflow:hidden;background:#122b12;cursor:pointer;padding:0;transition:.25s;position:relative}
.thumb img{height:86px;width:100%;object-fit:cover;opacity:.75;transition:.25s}
.thumb span{display:block;color:#d8ecc6;font-size:12.5px;padding:7px 6px;text-align:center}
.thumb:hover{transform:translateY(-3px)}
.thumb.on{border-color:var(--green);box-shadow:0 0 0 2px var(--green),0 10px 22px -10px rgba(106,180,39,.9)}
.thumb.on img{opacity:1}
.credit{position:relative;z-index:2;color:#9db894;font-size:12px;margin-top:10px;text-align:right}

/* player */
.player{position:relative;border-radius:22px;overflow:hidden;background:#0b1c0b;box-shadow:0 30px 60px -25px rgba(20,50,15,.55);border:1px solid var(--green)}
.player video{width:100%;aspect-ratio:16/9;display:block;background:#000}
.player .vscan{position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(0deg,rgba(106,180,39,.06) 0 2px,transparent 2px 5px)}
.player .bigplay{position:absolute;inset:0;margin:auto;width:88px;height:88px;border-radius:50%;border:none;cursor:pointer;
  background:rgba(106,180,39,.92);color:#fff;transition:.25s;box-shadow:0 0 0 12px rgba(106,180,39,.25),0 14px 30px -8px rgba(0,0,0,.6)}
.player .bigplay:hover{transform:scale(1.08)}
.player .bigplay svg{width:34px;height:34px;margin-left:4px}
.player.playing .bigplay{opacity:0;pointer-events:none;transform:scale(.6)}
.pctrl{position:absolute;left:0;right:0;bottom:0;display:flex;align-items:center;gap:12px;padding:12px 16px;
  background:linear-gradient(0deg,rgba(5,15,5,.85),transparent)}
.pctrl button{background:rgba(106,180,39,.9);border:none;color:#fff;border-radius:10px;min-width:42px;height:38px;
  cursor:pointer;font-size:15px;display:flex;align-items:center;justify-content:center;padding:0 10px;transition:.2s}
.pctrl button:hover{background:var(--green)}
.pbar{flex:1;height:8px;border-radius:99px;background:rgba(255,255,255,.25);cursor:pointer;position:relative;overflow:hidden}
.pbar i{position:absolute;left:0;top:0;bottom:0;width:0;border-radius:99px;background:linear-gradient(90deg,var(--green),#b8ec7f)}
.ptime{font-family:var(--font-num);font-size:12px;color:#e6f4d8;white-space:nowrap}

/* tabs */
.tabbtns{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:20px 0}
.tabbtn{border:2px solid var(--line);background:#fff;border-radius:var(--radius);padding:18px 8px;cursor:pointer;
  font-size:17px;font-weight:700;color:var(--ink);transition:.28s;display:flex;flex-direction:column;align-items:center;gap:8px;font-family:inherit}
.tabbtn .u{font-size:40px;line-height:1;filter:drop-shadow(0 6px 10px rgba(74,134,24,.35));transition:.28s}
.tabbtn small{font-weight:400;font-size:12px;color:var(--muted);font-family:var(--font-num)}
.tabbtn:hover{border-color:var(--green);transform:translateY(-4px);box-shadow:var(--shadow)}
.tabbtn.on{background:linear-gradient(135deg,var(--green),var(--green-dark));color:#fff;border-color:var(--green-dark);box-shadow:0 14px 28px -12px rgba(74,134,24,.8)}
.tabbtn.on small{color:#e8f6d8}
.tabbtn.on .u{transform:scale(1.15) rotate(-6deg)}
.panels{position:relative}
.panel{display:none;background:linear-gradient(135deg,#fff 55%,var(--mint));border:1px solid var(--line);border-radius:22px;
  padding:26px;box-shadow:var(--shadow)}
.panel.on{display:grid;grid-template-columns:220px 1fr;gap:26px;align-items:center;animation:panelIn .38s ease}
@keyframes panelIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
a.cover{text-decoration:none;display:block;border-radius:18px;background:radial-gradient(circle at 30% 20%,#8fd44f,#3f7d16 70%);
  aspect-ratio:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:#fff;
  font-size:88px;box-shadow:inset 0 0 0 3px rgba(255,255,255,.35),0 16px 30px -12px rgba(63,125,22,.7);transition:.3s;position:relative;overflow:hidden}
a.cover::before{content:"✦ ✦ ✦";position:absolute;top:12px;font-size:13px;letter-spacing:8px;color:rgba(255,255,255,.75)}
a.cover::after{content:"点击进入 →";position:absolute;bottom:12px;font-size:12px;background:rgba(0,0,0,.3);padding:3px 14px;border-radius:99px}
a.cover:hover{transform:scale(1.04) rotate(-2deg)}
a.cover small{font-size:15px;font-weight:700;letter-spacing:2px}
.panel h4{font-size:20px;margin-bottom:8px}
.panel h4 a{color:var(--green-deep);text-decoration:none}
.panel h4 a:hover{text-decoration:underline}
.panel p{color:var(--muted);font-size:14.5px;margin:8px 0}
.panel .spec{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0}
.panel .spec span{font-family:var(--font-num);font-size:12px;background:#fff;border:1px solid var(--green);color:var(--green-deep);padding:3px 12px;border-radius:99px}
.golink{display:inline-flex;align-items:center;gap:8px;margin-top:6px;text-decoration:none;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--green),var(--green-dark));padding:11px 26px;border-radius:999px;transition:.25s}
.golink:hover{transform:translateX(6px);box-shadow:0 12px 24px -10px rgba(74,134,24,.8)}

.player:fullscreen{border-radius:0}
.player:fullscreen video{height:100%}

/* reveal */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s ease,transform .7s ease}
.reveal.on{opacity:1;transform:none}

/* footer */
footer.site{margin-top:70px;background:linear-gradient(180deg,#163a0e,#0d2409);color:#d6e8c8;position:relative;overflow:hidden}
footer.site::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(160,230,120,.5) 1px,transparent 1.4px);background-size:26px 26px;opacity:.25}
.foot-grid{position:relative;display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:30px;padding:52px 0 30px}
.foot-grid h5{color:#fff;font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.foot-grid h5::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--green)}
.foot-grid p{font-size:14px;color:#b9d1a8}
.foot-grid ul{list-style:none}
.foot-grid ul a{display:inline-block;color:#d6e8c8;text-decoration:none;font-size:14.5px;padding:7px 0;transition:.2s}
.foot-grid ul a:hover{color:#fff;transform:translateX(6px)}
.foot-grid ul a::before{content:"▸ ";color:var(--green)}
.copy{position:relative;border-top:1px solid rgba(106,180,39,.35);padding:16px 0;font-size:13px;color:#9fbd8d;text-align:center}
.copy b{color:#e6f4d8;font-weight:400}

/* back to top */
#toTop{position:fixed;right:26px;bottom:26px;z-index:300;width:54px;height:54px;border-radius:50%;border:none;cursor:pointer;
  background:linear-gradient(135deg,var(--green),var(--green-dark));color:#fff;font-size:22px;display:none;
  box-shadow:0 14px 28px -8px rgba(74,134,24,.9);transition:transform .2s}
#toTop:hover{transform:translateY(-5px)}
#toTop.show{display:block;animation:pop .3s}
@keyframes pop{from{transform:scale(.4);opacity:0}}

/* responsive */
@media(max-width:1020px){
  .hero-grid{grid-template-columns:1fr;padding-top:44px}
  .scene{height:380px;max-width:520px}
  .facts{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .panel.on{grid-template-columns:1fr}
  a.cover{max-width:260px;margin:0 auto;width:100%}
  .foot-grid{grid-template-columns:1fr 1fr}
  .tabbtns{grid-template-columns:1fr 1fr}
  .thumbs{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .main-nav{position:fixed;top:68px;right:12px;flex-direction:column;background:#fff;border:1px solid var(--line);
    border-radius:16px;padding:12px;box-shadow:var(--shadow);display:none;align-items:stretch;min-width:170px}
  .main-nav.open{display:flex}
  .burger{display:block}
  .facts{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero .sub{min-height:84px}
}