:root{
  --teal:#00E8B4; --blue:#0A5CFF; --red:#FF1E5A; --orange:#FF6A00; --purple:#7C5CFF; --yellow:#FFC21A; --pink:#FF3EA5;
  --ink:#121212; --ink2:#1B1B1F; --muted:#5F6368; --line:#E6E8EB; --bg:#FFFFFF; --soft:#F5F7FA;
  --radius:24px; --max:1200px;
  --font:"PingFang SC","Hiragino Sans GB","Noto Sans CJK SC","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:76px;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.tbd{display:inline-block;font-size:.78em;font-weight:600;color:#B25E00;background:#FFF1DC;border:1px dashed #FFB55C;border-radius:6px;padding:0 .45em;margin-left:.2em;vertical-align:.08em;line-height:1.6}
.dark .tbd{background:rgba(255,160,60,.12);color:#FFB466;border-color:rgba(255,160,60,.5)}

/* ---------- header ---------- */
.hdr{position:fixed;inset:0 0 auto 0;z-index:50;height:68px;display:flex;align-items:center;transition:background .3s,box-shadow .3s,backdrop-filter .3s}
.hdr.scrolled{background:rgba(18,18,20,.86);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);box-shadow:0 1px 0 rgba(255,255,255,.06)}
.hdr .wrap{display:flex;align-items:center;gap:28px;width:100%}
.brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:700;white-space:nowrap}
.brand img{height:26px;width:auto}
.brand span{font-size:15px;opacity:.9}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{color:rgba(255,255,255,.82);font-size:15px;padding:8px 12px;border-radius:999px;transition:.2s}
.nav a:hover,.nav a.active{color:#fff;background:rgba(255,255,255,.1)}
.hdr-cta{margin-left:8px}
.burger{display:none;margin-left:auto;width:44px;height:44px;border:0;background:transparent;cursor:pointer;position:relative}
.burger i{position:absolute;left:11px;right:11px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.burger i:nth-child(1){top:15px}.burger i:nth-child(2){top:21px}.burger i:nth-child(3){top:27px}
.menu-open .burger i:nth-child(1){top:21px;transform:rotate(45deg)}
.menu-open .burger i:nth-child(2){opacity:0}
.menu-open .burger i:nth-child(3){top:21px;transform:rotate(-45deg)}
.mnav{position:fixed;inset:68px 0 0 0;background:#121214;z-index:49;padding:16px 24px 40px;display:flex;flex-direction:column;gap:4px;transform:translateY(-12px);opacity:0;visibility:hidden;transition:.3s;overflow:auto}
.mnav a{color:#fff;font-size:20px;font-weight:600;padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.08)}
.mnav .btn{margin-top:20px;justify-content:center}
.menu-open .mnav{opacity:1;visibility:visible;transform:none}
.menu-open .hdr{background:#121214}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:16px;padding:14px 26px;border-radius:999px;border:2px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--teal);color:#06231B;box-shadow:0 8px 24px rgba(0,232,180,.28)}
.btn-primary:hover{box-shadow:0 12px 30px rgba(0,232,180,.4)}
.btn-ghost{border-color:rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn-dark{background:var(--ink);color:#fff}
.btn-outline{border-color:var(--ink);color:var(--ink)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn .arr{transition:transform .2s}.btn:hover .arr{transform:translateX(3px)}

/* ---------- hero ---------- */
.hero{position:relative;background:#18181A;color:#fff;overflow:hidden;padding:128px 0 72px;min-height:100vh;display:flex;align-items:center}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse at 60% 40%,#000 30%,transparent 80%);-webkit-mask-image:radial-gradient(ellipse at 60% 40%,#000 30%,transparent 80%)}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;width:100%}
.hero-logos{display:flex;align-items:center;gap:14px;margin-bottom:28px;flex-wrap:wrap}
.hero-logos img{height:30px;width:auto}
.hero-logos .x{opacity:.5;font-weight:300}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--teal)}
.eyebrow::before{content:"";width:22px;height:4px;background:currentColor;border-radius:2px}
.hero h1{font-size:clamp(46px,7.4vw,104px);line-height:1.02;font-weight:900;letter-spacing:-.02em;margin:18px 0 10px}
.hero h1 small{display:block;font-size:.36em;font-weight:700;letter-spacing:.04em;color:#C9CDD6;margin-bottom:.25em}
.hero h1 .grad{background:linear-gradient(90deg,var(--teal),#3AA0FF 45%,var(--pink) 80%,var(--orange));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{font-size:clamp(20px,2.4vw,30px);font-weight:700;color:#AEB7FF;margin-bottom:6px}
.hero .slogan{font-size:clamp(16px,1.6vw,19px);color:#C5C8CF;max-width:560px}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 30px}
.chip{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);font-size:15px;font-weight:600}
.chip b{width:8px;height:8px;border-radius:2px;display:inline-block}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}
.countdown{display:flex;gap:12px;margin-top:38px;flex-wrap:wrap;align-items:flex-end}
.cd-label{width:100%;font-size:13px;color:#9AA0A6;letter-spacing:.08em}
.cd{min-width:84px;padding:12px 10px 10px;border-radius:16px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);text-align:center}
.cd strong{display:block;font-size:38px;line-height:1;font-weight:800;font-variant-numeric:tabular-nums}
.cd span{font-size:12px;color:#9AA0A6}
.cd:nth-child(2) strong{color:var(--teal)}.cd:nth-child(3) strong{color:#4D8BFF}.cd:nth-child(4) strong{color:var(--pink)}.cd:nth-child(5) strong{color:var(--orange)}
.hero-art{position:relative}
.hero-art img{width:100%;max-width:520px;margin-left:auto;mask-image:radial-gradient(ellipse 70% 72% at 50% 50%,#000 55%,transparent 100%);-webkit-mask-image:radial-gradient(ellipse 70% 72% at 50% 50%,#000 55%,transparent 100%);animation:float 6s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-14px)}}
.px{position:absolute;border-radius:4px;animation:bob 7s ease-in-out infinite}
@keyframes bob{50%{transform:translateY(-18px) rotate(8deg)}}
.hero-note{position:absolute;bottom:18px;left:0;right:0;text-align:center;font-size:12px;color:#6F737A}

/* ---------- ticker ---------- */
.ticker{background:var(--teal);color:#062A20;overflow:hidden;white-space:nowrap;font-weight:800;font-size:clamp(18px,2.2vw,26px);letter-spacing:.04em;padding:14px 0}
.ticker .track{display:inline-flex;gap:48px;animation:tick 32s linear infinite;padding-left:48px}
.ticker span{display:inline-flex;align-items:center;gap:48px}
.ticker span::after{content:"";width:14px;height:14px;background:#062A20;display:inline-block}
@keyframes tick{to{transform:translateX(-50%)}}

/* ---------- sections ---------- */
section{position:relative}
.sec{padding:112px 0}
.sec.soft{background:var(--soft)}
.sec.dark{background:#141416;color:#fff}
.sec-head{max-width:820px;margin-bottom:56px}
.sec-head.center{text-align:center;margin-left:auto;margin-right:auto}
.sec-head .eyebrow{color:var(--blue)}
.dark .sec-head .eyebrow{color:var(--teal)}
.sec-head h2{font-size:clamp(32px,4.6vw,60px);line-height:1.12;font-weight:900;letter-spacing:-.01em;margin:14px 0 18px}
.sec-head p{font-size:18px;color:var(--muted)}
.dark .sec-head p{color:#A8ADB5}
.hl{position:relative;white-space:nowrap}
.hl::after{content:"";position:absolute;left:-2px;right:-2px;bottom:.06em;height:.32em;background:var(--yellow);opacity:.55;z-index:-1;border-radius:3px}
.dark .hl::after{background:var(--blue);opacity:.75}
.note{font-size:13px;color:#8A9099;margin-top:14px}

/* reveal */
.rv{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}.rv.d3{transition-delay:.24s}.rv.d4{transition-delay:.32s}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none}*{animation:none!important;transition:none!important}}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
.opc-words{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:32px 0}
.opc-word{border-radius:20px;padding:22px 18px;color:#fff;font-weight:800}
.opc-word b{display:block;font-size:44px;line-height:1}
.opc-word span{font-size:16px;opacity:.95}
.opc-word:nth-child(1){background:var(--teal);color:#062A20}.opc-word:nth-child(2){background:var(--blue)}.opc-word:nth-child(3){background:var(--red)}
.about-text p{font-size:18px;margin-bottom:16px}
.about-text em{font-style:normal;font-weight:700;color:var(--blue)}
.org{border:1px solid var(--line);border-radius:var(--radius);padding:8px 28px;background:#fff}
.org div{padding:20px 0;border-bottom:1px solid var(--line)}
.org div:last-child{border:0}
.org h4{font-size:13px;letter-spacing:.1em;color:var(--muted);font-weight:600;margin-bottom:6px}
.org p{font-size:17px;font-weight:600;line-height:1.7}

/* why */
.why-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.why-card{background:#fff;border-radius:var(--radius);padding:28px 22px;border:1px solid var(--line);transition:transform .3s,box-shadow .3s}
.why-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(0,0,0,.08)}
.why-ico{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;margin-bottom:20px;color:#fff;font-size:24px;font-weight:900}
.why-card h3{font-size:19px;margin-bottom:10px;line-height:1.35}
.why-card p{font-size:14.5px;color:var(--muted)}

/* stats */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,.08);border-radius:var(--radius);overflow:hidden}
.stat{background:#141416;padding:38px 32px}
.stat strong{display:block;font-size:clamp(46px,5.4vw,76px);font-weight:900;line-height:1;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stat h3{font-size:20px;margin:12px 0 6px}
.stat p{color:#A0A5AD;font-size:15px}
.stat:nth-child(1) strong{color:var(--orange)}.stat:nth-child(2) strong{color:var(--pink)}.stat:nth-child(3) strong{color:var(--teal)}
.stat:nth-child(4) strong{color:var(--purple)}.stat:nth-child(5) strong{color:#3D86FF}.stat:nth-child(6) strong{color:#FF5A3C}

/* modules */
.mods{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.mod{border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--line);display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s}
.mod:hover{transform:translateY(-6px);box-shadow:0 20px 44px rgba(0,0,0,.1)}
.mod-img{aspect-ratio:4/3.4;overflow:hidden;position:relative}
.mod-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.mod:hover .mod-img img{transform:scale(1.05)}
.mod-tag{position:absolute;left:16px;bottom:14px;font-weight:900;font-size:22px;letter-spacing:.02em;color:#fff;text-shadow:0 2px 12px rgba(0,0,0,.5)}
.mod-body{padding:22px 22px 26px;border-top:6px solid var(--c)}
.mod-body h3{font-size:22px;margin-bottom:12px}
.mod-body li{list-style:none;font-size:15px;color:var(--muted);padding:5px 0 5px 18px;position:relative}
.mod-body li::before{content:"";position:absolute;left:0;top:13px;width:8px;height:8px;background:var(--c);border-radius:2px}

/* info */
.info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:28px}
.info{border-radius:20px;padding:26px 24px;background:var(--soft);border:1px solid var(--line)}
.info h4{font-size:13px;letter-spacing:.1em;color:var(--muted);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.info h4 i{width:10px;height:10px;border-radius:3px;display:inline-block}
.info p{font-size:18px;font-weight:700;line-height:1.5}
.info small{display:block;font-size:13.5px;color:var(--muted);font-weight:400;margin-top:6px}
.venue{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.venue figure{border-radius:var(--radius);overflow:hidden;position:relative;background:#eee}
.venue img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.venue figcaption,.cap{position:absolute;left:12px;bottom:10px;font-size:12px;color:#fff;background:rgba(0,0,0,.5);padding:3px 10px;border-radius:999px}
.traffic{margin-top:16px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.traffic div{border:1px dashed #C9CED6;border-radius:18px;padding:20px 22px}
.traffic h5{font-size:16px;margin-bottom:4px}
.traffic p{font-size:14.5px;color:var(--muted)}

/* agenda */
.tabs{display:flex;gap:10px;margin-bottom:28px;flex-wrap:wrap}
.tab{border:2px solid rgba(255,255,255,.18);background:transparent;color:#fff;border-radius:18px;padding:12px 22px;cursor:pointer;text-align:left;transition:.25s;min-width:150px}
.tab b{display:block;font-size:28px;line-height:1.1;font-weight:900}
.tab span{font-size:13px;opacity:.75}
.tab[aria-selected=true]{background:#fff;color:#111;border-color:#fff}
.tab[aria-selected=true] b{color:var(--c)}
.panel{display:none}
.panel.on{display:block;animation:fade .45s ease}
@keyframes fade{from{opacity:0;transform:translateY(10px)}}
.slot{display:grid;grid-template-columns:180px 1fr;gap:24px;padding:26px 0;border-top:1px solid rgba(255,255,255,.1)}
.slot-time{font-size:24px;font-weight:800;font-variant-numeric:tabular-nums;color:#fff}
.slot-time small{display:block;font-size:13px;font-weight:500;color:#8E949C}
.items{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.item{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:16px 18px;border-left:5px solid var(--c)}
.item h4{font-size:18px;margin-bottom:4px}
.item p{font-size:14px;color:#A8ADB5}
.badge{display:inline-block;font-size:12px;font-weight:700;padding:2px 10px;border-radius:999px;margin-bottom:8px;background:var(--c);color:#0B0B0C}
.agenda-foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:28px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);font-size:14px;color:#9AA0A6}

/* forums & speakers */
.forum-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.ftab{border:2px solid var(--line);background:#fff;padding:10px 20px;border-radius:999px;font-weight:700;cursor:pointer;transition:.2s}
.ftab[aria-selected=true]{background:var(--ink);color:#fff;border-color:var(--ink)}
.forum{display:none;grid-template-columns:.85fr 1.15fr;gap:40px}
.forum.on{display:grid;animation:fade .45s ease}
.forum h3{font-size:32px;font-weight:900;margin-bottom:6px}
.forum .when{font-size:15px;font-weight:700;color:var(--blue);margin-bottom:16px}
.forum p{color:var(--muted);font-size:16.5px;margin-bottom:20px}
.topics{display:flex;flex-wrap:wrap;gap:8px}
.topics span{padding:8px 14px;border-radius:12px;background:var(--soft);border:1px solid var(--line);font-weight:600;font-size:14.5px}
.spk-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:14px;gap:10px;flex-wrap:wrap}
.spk-head h4{font-size:16px}
.spk-head small{font-size:12.5px;color:#B25E00;background:#FFF1DC;padding:2px 10px;border-radius:999px}
.spk{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:12px}
.sp{display:flex;gap:12px;align-items:center;padding:14px;border-radius:16px;border:1px solid var(--line);background:#fff}
.av{flex:none;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:800;font-size:18px}
.sp>div{min-width:0}.sp b{display:block;font-size:16px;line-height:1.3}
.sp>div>span{display:block;font-size:12.5px;color:var(--muted);line-height:1.45}

/* openmic + hackathon */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split .media{border-radius:var(--radius);overflow:hidden;position:relative}
.split .media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.split h3{font-size:clamp(28px,3.2vw,40px);font-weight:900;margin-bottom:14px;line-height:1.2}
.split ul{list-style:none;margin:18px 0}
.split li{padding:8px 0 8px 28px;position:relative;font-size:16px;color:var(--muted)}
.dark .split li{color:#B5BAC2}
.split li::before{content:"";position:absolute;left:0;top:16px;width:12px;height:12px;border-radius:3px;background:var(--c,var(--pink))}
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:40px;align-items:end}
.tier{border-radius:20px;padding:24px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-top:6px solid var(--c)}
.tier:nth-child(1){min-height:220px}.tier:nth-child(2){min-height:256px}.tier:nth-child(3){min-height:292px}
.tier .lv{display:flex;justify-content:space-between;font-weight:900;font-size:26px;color:var(--c)}
.tier .lv small{font-size:12px;letter-spacing:.14em;align-self:center}
.tier h4{font-size:14px;color:#9AA0A6;font-weight:600;margin-top:6px}
.tier h5{font-size:26px;font-weight:900;margin:12px 0 8px}
.tier p{font-size:14.5px;color:#B5BAC2}
.tier .k{display:inline-block;margin-top:12px;font-weight:800;color:var(--c)}
.tracks{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px}
.track-c{border-radius:18px;padding:18px 20px;background:rgba(255,255,255,.04);border:1px dashed rgba(255,255,255,.2)}
.track-c b{color:var(--teal)}

/* ican */
.ican{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.ican-logo{height:46px;width:auto;margin-bottom:16px}
.ican-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:28px 0}
.ican-stats div strong{display:block;font-size:clamp(26px,3vw,38px);font-weight:900;line-height:1.1}
.ican-stats div span{font-size:13.5px;color:var(--muted)}
.ican-stats div:nth-child(1) strong{color:#00B98F}.ican-stats div:nth-child(2) strong{color:var(--red)}.ican-stats div:nth-child(3) strong{color:var(--blue)}.ican-stats div:nth-child(4) strong{color:var(--orange)}
.donut-wrap{display:flex;flex-direction:column;align-items:center;gap:24px}
.donut{width:min(320px,80vw);aspect-ratio:1;border-radius:50%;position:relative;
 background:conic-gradient(#2E6BFF 0 4%,#B0B4BB 4% 10%,#9AA0A6 10% 18%,#FFC21A 18% 24%,#FF3B30 24% 31%,#E0257A 31% 37%,#1F9BFF 37% 54%,#6BDB4B 54% 67%,#A7ABB1 67% 79%,#FFC21A 79% 100%)}
.donut::after{content:"项目\A类型分布";white-space:pre;position:absolute;inset:26%;border-radius:50%;background:var(--soft);display:grid;place-items:center;text-align:center;font-weight:800;font-size:18px;line-height:1.4}
.legend{display:grid;grid-template-columns:repeat(2,1fr);gap:6px 22px;font-size:14px}
.legend span{display:flex;align-items:center;gap:8px}
.legend i{width:12px;height:12px;border-radius:3px;flex:none}
.legend b{margin-left:auto;font-variant-numeric:tabular-nums}

/* exhibition */
.zones{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.zone{border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--line);display:grid;grid-template-columns:1fr}
.zone .zimg{position:relative;aspect-ratio:16/9;overflow:hidden}
.zone .zimg img{width:100%;height:100%;object-fit:cover}
.zone .zb{padding:22px 24px 26px;display:flex;gap:18px;align-items:flex-start}
.zone .num{font-size:52px;font-weight:300;line-height:.9;color:var(--c);font-variant-numeric:tabular-nums}
.zone h3{font-size:21px;margin-bottom:6px}
.zone p{font-size:14.5px;color:var(--muted)}
.plan{margin-top:56px;display:grid;grid-template-columns:1.35fr .65fr;gap:32px;align-items:start}
.plan figure{border-radius:var(--radius);overflow:hidden;background:#1d1d20;padding:10px;position:relative}
.plan figure img{border-radius:14px;width:100%}
.plan h3{font-size:26px;font-weight:900;margin-bottom:12px}
.plan ul{list-style:none;display:grid;gap:8px}
.plan li{display:flex;align-items:center;gap:10px;font-size:15px}
.plan li i{width:14px;height:14px;border-radius:3px;flex:none}

.booths{margin-top:64px}
.booth-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.booth{border-radius:var(--radius);padding:30px 26px;border:2px solid var(--ink);background:#fff;position:relative;overflow:hidden}
.booth::after{content:"";position:absolute;right:-30px;top:-30px;width:110px;height:110px;background:var(--c);border-radius:24px;transform:rotate(18deg);opacity:.9}
.booth .size{font-size:52px;font-weight:900;line-height:1;position:relative;z-index:1}
.booth .size sup{font-size:.4em}
.booth .dim{font-size:14px;color:var(--muted);margin:6px 0 18px}
.booth dl{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;font-size:15px}
.booth dt{color:var(--muted)}
.booth dd{font-weight:800;text-align:right}
.booth dd.price{font-size:22px;color:var(--ink)}

.pkgs{margin-top:64px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.pkg{border-radius:var(--radius);padding:30px 26px;background:#141416;color:#fff;display:flex;flex-direction:column;position:relative;overflow:hidden}
.pkg::before{content:"";position:absolute;inset:0 0 auto 0;height:6px;background:var(--c)}
.pkg .lvl{font-size:14px;color:#9AA0A6;font-weight:600}
.pkg h3{font-size:24px;font-weight:900;margin:4px 0 10px}
.pkg .amt{font-size:46px;font-weight:900;color:var(--c);line-height:1}
.pkg .amt small{font-size:18px;color:#fff;margin-left:6px}
.pkg ul{list-style:none;margin:20px 0 4px;display:grid;gap:8px}
.pkg li{font-size:14.5px;color:#C8CCD3;padding-left:22px;position:relative}
.pkg li::before{content:"✓";position:absolute;left:0;color:var(--c);font-weight:900}
.biz{margin-top:24px;border-radius:var(--radius);padding:26px 30px;background:var(--yellow);display:flex;justify-content:space-between;gap:20px;align-items:center;flex-wrap:wrap}
.biz h4{font-size:22px;font-weight:900}
.biz p{font-size:15px}

/* legacy */
.legacy-banner{border-radius:var(--radius);overflow:hidden;margin-bottom:28px;position:relative}
.legacy-banner img{width:100%;aspect-ratio:1024/235;object-fit:cover}
.outs{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.out{border-radius:20px;padding:22px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08)}
.out h4{font-size:19px;color:var(--c);margin-bottom:8px}
.out p{font-size:14px;color:#A8ADB5}

/* register */
.passes{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:56px}
.pass{border-radius:var(--radius);padding:26px 24px;background:#fff;border:2px solid var(--line);cursor:pointer;transition:.25s;display:flex;flex-direction:column;text-align:left}
.pass:hover{border-color:var(--c);transform:translateY(-4px)}
.pass.sel{border-color:var(--c);box-shadow:0 0 0 4px color-mix(in srgb,var(--c) 22%,transparent)}
.pass .pico{width:48px;height:48px;border-radius:14px;background:var(--c);margin-bottom:18px;display:grid;place-items:center;color:#fff;font-weight:900;font-size:20px}
.pass h3{font-size:21px;margin-bottom:6px}
.pass p{font-size:14.5px;color:var(--muted);flex:1}
.pass .price{margin-top:16px;font-weight:800;font-size:15px}
.form-card{border-radius:28px;background:#fff;border:1px solid var(--line);padding:40px;display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;box-shadow:0 24px 60px rgba(0,0,0,.06)}
.form-aside h3{font-size:30px;font-weight:900;margin-bottom:12px}
.form-aside p{color:var(--muted);margin-bottom:14px}
.form-aside .steps{list-style:none;counter-reset:s;display:grid;gap:12px;margin-top:20px}
.form-aside .steps li{counter-increment:s;display:flex;gap:12px;align-items:center;font-weight:600}
.form-aside .steps li::before{content:counter(s);width:30px;height:30px;border-radius:9px;background:var(--ink);color:#fff;display:grid;place-items:center;font-size:14px;flex:none}
form{display:grid;grid-template-columns:1fr 1fr;gap:16px 18px}
.f{display:flex;flex-direction:column;gap:6px}
.f.full{grid-column:1/-1}
.f label{font-size:14px;font-weight:700}
.f label .req{color:var(--red)}
.f input,.f select,.f textarea{border:1.5px solid #D5D9DF;border-radius:12px;padding:12px 14px;font-size:16px;background:#fff;outline:none;transition:border .2s,box-shadow .2s;width:100%}
.f textarea{min-height:96px;resize:vertical}
.f input:focus,.f select:focus,.f textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(10,92,255,.12)}
.f.err input,.f.err select,.f.err textarea{border-color:var(--red)}
.f .msg{font-size:12.5px;color:var(--red);min-height:0;display:none}
.f.err .msg{display:block}
.seg{display:flex;flex-wrap:wrap;gap:8px}
.seg label{font-weight:600;border:1.5px solid #D5D9DF;border-radius:999px;padding:8px 14px;cursor:pointer;font-size:14px;display:flex;gap:6px;align-items:center;user-select:none}
.seg input{accent-color:var(--blue);width:auto}
.seg label:has(input:checked){border-color:var(--blue);background:rgba(10,92,255,.06);color:var(--blue)}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted)}
.agree input{margin-top:4px;accent-color:var(--blue);width:18px;height:18px}
.hidden{display:none!important}
.form-actions{grid-column:1/-1;display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.form-actions small{color:var(--muted);font-size:13px}

/* modal */
.modal{position:fixed;inset:0;background:rgba(10,10,12,.6);backdrop-filter:blur(6px);z-index:100;display:grid;place-items:center;padding:20px;opacity:0;visibility:hidden;transition:.3s}
.modal.on{opacity:1;visibility:visible}
.modal-box{background:#fff;border-radius:28px;max-width:440px;width:100%;padding:40px 32px;text-align:center;transform:scale(.94);transition:.3s;position:relative;overflow:hidden}
.modal.on .modal-box{transform:none}
.ok{width:76px;height:76px;margin:0 auto 18px;border-radius:22px;background:var(--teal);display:grid;place-items:center;font-size:40px;color:#06231B;font-weight:900}
.modal-box h3{font-size:26px;font-weight:900;margin-bottom:8px}
.modal-box p{color:var(--muted);margin-bottom:22px}
.modal-box .sum{background:var(--soft);border-radius:14px;padding:14px;text-align:left;font-size:14px;margin-bottom:22px}

/* faq */
.faq{max-width:900px;margin:0 auto}
.qa{border-bottom:1px solid var(--line)}
.qa button{width:100%;background:none;border:0;text-align:left;padding:24px 48px 24px 0;font-size:19px;font-weight:700;cursor:pointer;position:relative}
.qa button::after{content:"";position:absolute;right:8px;top:50%;width:14px;height:14px;border-right:3px solid var(--ink);border-bottom:3px solid var(--ink);transform:translateY(-70%) rotate(45deg);transition:.3s}
.qa.open button::after{transform:translateY(-30%) rotate(-135deg)}
.qa .ans{max-height:0;overflow:hidden;transition:max-height .4s ease}
.qa .ans p{padding:0 0 24px;color:var(--muted);font-size:16px}

/* partners placeholder */
.partners{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.partners div{aspect-ratio:2/1;border:2px dashed #D5D9DF;border-radius:16px;display:grid;place-items:center;color:#9AA0A6;font-weight:700;font-size:14px}

/* cta band */
.band{background:linear-gradient(110deg,var(--blue),#5B3BFF 45%,var(--pink));color:#fff;border-radius:32px;padding:56px;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;position:relative;overflow:hidden}
.band h2{font-size:clamp(28px,3.6vw,46px);font-weight:900;line-height:1.15}
.band p{opacity:.9;margin-top:8px}
.band .btn-primary{box-shadow:none}

/* footer */
.ftr{background:#0E0E10;color:#C5C8CF;padding:80px 0 36px}
.ftr-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr .8fr;gap:40px}
.ftr img.lg{height:34px;width:auto;margin-bottom:18px}
.ftr h5{color:#fff;font-size:16px;margin-bottom:14px}
.ftr h5 i{display:inline-block;width:10px;height:10px;border-radius:2px;background:var(--orange);margin-right:8px}
.ftr p{font-size:14.5px;line-height:1.9}
.ftr a:hover{color:#fff}
.qr{background:#fff;padding:8px;border-radius:14px;width:128px}
.ftr-bottom{margin-top:56px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:#7D828A}
.totop{position:fixed;right:20px;bottom:20px;z-index:40;width:48px;height:48px;border-radius:14px;background:var(--ink);color:#fff;border:0;font-size:20px;cursor:pointer;opacity:0;visibility:hidden;transition:.3s;box-shadow:0 8px 20px rgba(0,0,0,.2)}
.totop.on{opacity:1;visibility:visible}
.m-cta{display:none}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .nav{display:none}.hdr-cta{display:none}.burger{display:block}
  .why-grid{grid-template-columns:repeat(3,1fr)}
  .mods{grid-template-columns:repeat(2,1fr)}
  .info-grid{grid-template-columns:repeat(2,1fr)}
  .passes{grid-template-columns:repeat(2,1fr)}
  .outs{grid-template-columns:repeat(2,1fr)}
  .partners{grid-template-columns:repeat(4,1fr)}
  .ftr-grid{grid-template-columns:1fr 1fr}
  .form-card{grid-template-columns:1fr;gap:28px}
}
@media (max-width:860px){
  .sec{padding:80px 0}
  .hero{padding:104px 0 56px;min-height:auto}
  .hero .wrap{grid-template-columns:1fr}
  .hero-art{order:-1;max-width:210px;margin:0 auto -6px}
  .hero-art img{max-width:210px;margin:0 auto}
  .about-grid,.forum.on,.split,.ican,.plan{grid-template-columns:1fr;gap:32px}
  .split .media{order:-1}
  .stats{grid-template-columns:repeat(2,1fr)}
  .zones,.venue{grid-template-columns:1fr}
  .booth-row,.pkgs,.traffic{grid-template-columns:1fr}
  .tiers{grid-template-columns:1fr}
  .tier:nth-child(n){min-height:0}
  .slot{grid-template-columns:1fr;gap:12px}
  .band{padding:36px 28px}
}
@media (max-width:560px){
  .wrap{padding:0 18px}
  .brand span{display:none}
  .hero-logos img{height:24px}
  .chips .chip{font-size:14px;padding:8px 13px}
  .cd{min-width:0;flex:1;padding:10px 4px}
  .cd strong{font-size:28px}
  .cta-row .btn{flex:1;justify-content:center}
  .why-grid,.mods{grid-template-columns:1fr}
  .info-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stat{padding:26px 18px}
  .stat h3{font-size:17px}.stat p{font-size:13.5px}
  .ican-stats{grid-template-columns:1fr 1fr}
  .passes{grid-template-columns:1fr}
  .outs{grid-template-columns:1fr}
  .partners{grid-template-columns:repeat(2,1fr)}
  .ftr-grid{grid-template-columns:1fr}
  form{grid-template-columns:1fr}
  .form-card{padding:26px 20px;border-radius:22px}
  .tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
  .tab{min-width:0;padding:10px 12px}
  .tab b{font-size:21px}
  .tab span{font-size:11.5px;display:block}
  .opc-word b{font-size:32px}.opc-word span{font-size:13px}.opc-word{padding:16px 12px}
  .legend{grid-template-columns:1fr 1fr;gap:6px 14px;font-size:13px}
  .spk{grid-template-columns:1fr 1fr}
  .sp{flex-direction:column;align-items:flex-start;gap:8px}
  .qa button{font-size:17px}
  .m-cta{display:flex;position:fixed;left:12px;right:12px;bottom:12px;z-index:45;justify-content:center;opacity:0;visibility:hidden;transform:translateY(20px);transition:.3s}
  .m-cta.on{opacity:1;visibility:visible;transform:none}
  .m-cta .btn{width:100%;justify-content:center}
  .totop{bottom:80px}
}
/* registration (external link) */
a.pass{color:inherit;text-decoration:none}
.pass .go{margin-top:14px;font-weight:800;color:var(--c);text-decoration:none}
.pass .price a{color:inherit}
.reg-card{grid-template-columns:1.2fr .8fr;align-items:center}
.reg-qr{text-align:center}
.reg-qr img{width:220px;height:220px;margin:0 auto 14px;border-radius:18px;border:1px solid var(--line);padding:10px;background:#fff}
.reg-qr p{color:var(--muted);font-size:14px}
.reg-qr b{color:var(--ink);font-size:17px}
.note a{color:var(--blue)}
.ans a{color:var(--blue);font-weight:600}
@media (max-width:860px){.reg-card{grid-template-columns:1fr}.reg-qr img{width:180px;height:180px}}
.pass .price a,.note a{white-space:nowrap}