:root{--ink:#111827;--blue:#58bff4;--deep:#147bc2;--orange:#ff8058;--yellow:#ffd95a;--mint:#55d6b2;--paper:#f8fbff;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;background:var(--paper);overflow-x:hidden}.noise{position:fixed;inset:0;pointer-events:none;z-index:20;opacity:.035;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}.hero{min-height:100svh;position:relative;padding:28px clamp(24px,6vw,96px);background:linear-gradient(90deg,rgba(255,255,255,.82) 0%,rgba(255,255,255,.3) 48%,rgba(255,255,255,0) 72%),url('assets/summer-journey-hero.png') center/cover;isolation:isolate}.hero:after{content:"";position:absolute;inset:auto 0 0;height:20%;background:linear-gradient(transparent,var(--paper));z-index:-1}nav{display:flex;justify-content:space-between;align-items:center}.mark{font-weight:900;letter-spacing:.18em}.sound{border:1px solid rgba(17,24,39,.2);background:rgba(255,255,255,.6);backdrop-filter:blur(12px);border-radius:999px;padding:10px 16px;cursor:pointer}.hero-copy{margin-top:clamp(110px,18vh,190px);max-width:720px}.eyebrow{font-size:12px;font-weight:800;letter-spacing:.22em;color:var(--deep)}h1{font-size:clamp(58px,9vw,132px);line-height:.94;margin:18px 0 26px;letter-spacing:-.06em}h1 em{font-style:normal;color:transparent;-webkit-text-stroke:2px var(--ink)}.lead{font-size:clamp(18px,2vw,25px);font-weight:600}.primary{border:0;border-radius:999px;padding:17px 25px;background:var(--ink);color:#fff;font-weight:800;font-size:15px;cursor:pointer;box-shadow:0 10px 30px rgba(17,24,39,.18);transition:.25s}.primary:hover{transform:translateY(-3px);background:var(--deep)}.primary span{margin-left:30px}.age-seal{position:absolute;right:clamp(24px,7vw,110px);bottom:9vh;width:170px;height:170px;border-radius:50%;background:var(--orange);color:#fff;display:grid;place-content:center;text-align:center;transform:rotate(7deg);box-shadow:0 20px 60px rgba(255,128,88,.35)}.age-seal b{font-size:72px;line-height:.8}.age-seal span{font-size:10px;letter-spacing:.2em;margin-top:12px}.section{padding:110px clamp(24px,7vw,110px)}.section-title{display:grid;grid-template-columns:80px auto 1fr;gap:24px;align-items:end;margin-bottom:50px}.section-title span{font-size:12px;font-weight:900;color:var(--deep)}.section-title h2{font-size:clamp(38px,5vw,72px);margin:0;letter-spacing:-.05em}.section-title p{justify-self:end;max-width:360px;margin:0;color:#64748b}.profile-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:16px}.card{min-height:260px;border-radius:28px;padding:28px;box-shadow:0 20px 60px rgba(32,76,111,.09)}.identity{background:#fff;display:flex;gap:20px;align-items:center}.avatar{width:100px;height:100px;border-radius:50%;display:grid;place-items:center;font-size:30px;font-weight:900;background:var(--ink);color:#fff}.identity small,.stat small{font-weight:900;letter-spacing:.14em}.identity h3{font-size:38px;margin:5px 0}.identity p,.stat p{color:#536170}.stat{display:flex;flex-direction:column}.stat strong{font-size:30px;margin-top:auto}.blue{background:#dff3ff}.orange{background:#ffe2d6}.mint{background:#d9f8ef}.stories{background:var(--ink);color:#fff}.stories .section-title p{color:#a9b6c8}.story-track{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.story{min-height:390px;border-radius:32px;padding:32px;display:flex;flex-direction:column;overflow:hidden;position:relative}.story:after{content:"";position:absolute;width:240px;height:240px;border:2px solid rgba(255,255,255,.25);border-radius:44% 56% 60% 40%;right:-80px;bottom:-100px;animation:spin 12s linear infinite}.story b{font-size:12px}.story h3{margin-top:auto;font-size:36px;margin-bottom:12px}.story p{line-height:1.8;max-width:360px}.dragon{background:linear-gradient(145deg,#278cd3,#57c8f1)}.fox{background:linear-gradient(145deg,#ff7356,#ffac65)}.realm{background:linear-gradient(145deg,#31b69a,#8ed7a8)}.game-section{display:grid;grid-template-columns:.65fr 1.35fr;gap:6vw;align-items:center;background:#eef8ff}.game-copy h2{font-size:clamp(42px,6vw,80px);line-height:1.05;margin:20px 0}.game-copy p{line-height:1.9;color:#586779}.pill{display:inline-block;background:var(--yellow);padding:8px 14px;border-radius:999px;font-weight:900}.controls{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}.controls span{background:#fff;padding:9px 13px;border-radius:9px;font-size:12px}.game-shell{position:relative;border-radius:32px;background:#0e2038;padding:16px;box-shadow:0 30px 80px rgba(22,84,135,.25);overflow:hidden}.hud{height:44px;color:white;display:flex;justify-content:space-between;align-items:center;padding:0 12px;font-size:13px}canvas{display:block;width:100%;height:auto;border-radius:20px;background:linear-gradient(#3db9ed,#b6ecff 58%,#fff0b2)}.game-overlay{position:absolute;inset:60px 16px 16px;border-radius:20px;background:rgba(10,27,48,.65);backdrop-filter:blur(10px);color:#fff;display:grid;place-content:center;text-align:center;padding:20px}.game-overlay.hidden{display:none}.game-overlay h3{font-size:36px;margin:10px}.mini-orbit{width:54px;height:54px;border:4px solid var(--mint);border-right-color:var(--orange);border-radius:50%;margin:auto;animation:spin 2s linear infinite}.letter{margin:100px clamp(24px,7vw,110px);border-radius:40px;background:var(--yellow);min-height:430px;position:relative;overflow:hidden}.letter:after{content:"20";position:absolute;right:-20px;bottom:-90px;font-size:300px;font-weight:900;color:rgba(255,255,255,.35)}.letter-index{font-size:12px;font-weight:900;letter-spacing:.16em}.letter h2{font-size:clamp(42px,6vw,82px);margin:45px 0 20px;max-width:750px}.letter p{max-width:650px;line-height:1.8}.signature{margin-top:50px;font-weight:900}footer{padding:30px clamp(24px,7vw,110px);display:flex;justify-content:space-between;font-size:11px;font-weight:900;letter-spacing:.15em}.reveal{opacity:0;transform:translateY(28px);transition:.7s cubic-bezier(.2,.7,.2,1)}.reveal.in{opacity:1;transform:none}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:900px){.profile-grid{grid-template-columns:1fr 1fr}.identity{grid-column:1/-1}.story-track{grid-template-columns:1fr}.story{min-height:310px}.game-section{grid-template-columns:1fr}.section-title{grid-template-columns:44px 1fr}.section-title p{grid-column:2;justify-self:start}.age-seal{width:120px;height:120px;bottom:5vh}.age-seal b{font-size:52px}}@media(max-width:560px){.hero{background-position:62% center}.hero-copy{margin-top:18vh}h1{font-size:54px}h1 em{-webkit-text-stroke:1px var(--ink)}.age-seal{right:18px;bottom:3vh}.section{padding:78px 20px}.profile-grid{grid-template-columns:1fr}.identity{grid-column:auto}.card{min-height:210px}.avatar{width:76px;height:76px}.letter{margin:60px 14px;padding:70px 26px}.game-shell{padding:9px}.game-overlay{inset:53px 9px 9px}footer{padding:25px 18px}}