:root{color-scheme:light;--navy:#112d64;--ink:#142c50;--blue:#235ad2;--muted:#52647e;--cyan:#99efff;--yellow:#ffe36a;--line:#dce5f1;--paper:#f5f8fd}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:2rem}body{margin:0;background:white;color:var(--ink);font-family:Inter,"Segoe UI",Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.7}a{color:var(--blue);text-underline-offset:.22em}a:hover{text-decoration-thickness:2px}a:focus-visible,summary:focus-visible{outline:3px solid #e49700;outline-offset:5px}img{display:block;max-width:100%;height:auto}p{margin:0 0 1.15rem}h1,h2{line-height:1.12;letter-spacing:-.035em;margin:0 0 1.2rem}h1{font-size:clamp(2.7rem,6vw,5.2rem);font-weight:800}h2{font-size:clamp(1.65rem,3vw,2.3rem)}.wrap{width:min(1160px,calc(100% - 80px));margin-inline:auto}.skip{position:absolute;left:20px;top:-100px;background:white;padding:10px;z-index:10}.skip:focus{top:10px}.site-header{background:var(--navy);color:white;border-bottom:1px solid #ffffff20}.header-inner{max-width:1240px;margin:auto;padding:20px 40px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px;color:white;text-decoration:none;font-size:23px;font-weight:800;line-height:1.1;letter-spacing:-.025em}.brand img{width:48px;height:48px;border-radius:11px}.brand small{display:block;font-size:10px;letter-spacing:.17em;margin-top:7px;font-weight:600}.site-header nav{display:flex;align-items:center;gap:28px}.site-header nav a{color:#e6edff;text-decoration:none;font-size:15px}.site-header nav a[aria-current]{color:var(--yellow)}.site-header nav a:hover{color:white;text-decoration:underline}.site-header nav .language{border:1px solid #6682b2;padding:5px 12px;border-radius:5px}.support-hero{background:var(--navy);color:white;padding:74px 0 82px}.hero-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:80px;align-items:center}.eyebrow{font-size:12px;letter-spacing:.15em;font-weight:750;margin-bottom:20px}.support-hero .eyebrow,.privacy-hero .eyebrow{color:var(--cyan)}h1 em{font-style:normal;color:var(--yellow)}.lead{font-size:19px;line-height:1.7;max-width:620px}.support-hero .lead{color:#d7e5ff;margin:26px 0}.text-link{font-weight:650}.support-hero .text-link{color:var(--cyan)}.contact-card{background:white;color:var(--ink);padding:34px;border-radius:16px;border-top:6px solid var(--cyan);box-shadow:0 12px 0 #061c4540}.card-label{font-size:12px;font-weight:750;letter-spacing:.14em;color:var(--blue)}.contact-card h2{margin-top:18px;font-size:30px}.contact-card p{color:var(--muted)}.button{display:flex;justify-content:center;background:var(--blue);color:white;text-decoration:none;font-size:16px;font-weight:700;padding:13px 20px;border-radius:7px;margin:24px 0 14px}.button:hover{background:#1748b2}.email{display:block;text-align:center;overflow-wrap:anywhere;font-size:15px}.contact-card .fine{font-size:13px;line-height:1.6;margin:20px 0 0;text-align:center}.help-layout{display:grid;grid-template-columns:280px 1fr;gap:80px;padding-block:80px}.section-intro .eyebrow{color:var(--blue)}.section-intro p{color:var(--muted)}.faq{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:0 0 0 2px}summary{cursor:pointer;font-size:18px;font-weight:650;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:25px;padding:23px 0}summary::-webkit-details-marker{display:none}summary::after{content:'+';font-size:24px;line-height:1;color:var(--blue);font-weight:400}details[open] summary::after{content:'−'}details p{color:var(--muted);padding:0 30px 12px 0}.game-note{display:grid;grid-template-columns:1.15fr 1fr;gap:42px;align-items:center;padding:30px;background:var(--paper);border:1px solid var(--line);border-radius:16px;margin-bottom:80px}.game-note img{border-radius:8px}.game-note h2{font-size:28px;line-height:1.2}.game-note p{color:var(--muted)}.game-note .eyebrow{font-size:11px;color:var(--blue)}.site-footer{border-top:1px solid var(--line);background:var(--paper);font-size:13px;color:var(--muted)}.site-footer>div{max-width:1240px;margin:auto;padding:28px 40px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.site-footer p{margin:0}.site-footer nav{display:flex;gap:22px;flex-wrap:wrap}.site-footer a{color:var(--muted);overflow-wrap:anywhere}.privacy-hero{background:var(--navy);color:white;padding:64px 0 48px}.privacy-hero h1{font-size:clamp(2.7rem,6vw,4.4rem)}.privacy-hero .lead{max-width:780px;color:#d7e5ff}.effective{color:#b8cae9;font-size:13px;margin:25px 0 0}.effective span{margin:0 9px}.policy-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:72px;padding-block:64px 90px;align-items:start}.contents{position:sticky;top:28px}.contents .eyebrow{color:var(--muted);margin-bottom:14px}.contents nav{display:flex;flex-direction:column;gap:12px}.contents a{font-size:14px;color:var(--muted);text-decoration:none;line-height:1.5}.contents a:hover{color:var(--blue);text-decoration:underline}.policy section{padding-bottom:34px;margin-bottom:34px;border-bottom:1px solid var(--line)}.policy section:last-child{margin-bottom:0;border:0;padding-bottom:0}.policy h2{font-size:26px;letter-spacing:-.02em;line-height:1.3;margin-bottom:20px}.section-number{color:var(--blue);font-size:13px;font-weight:750;margin-bottom:8px}.policy p{line-height:1.85}.policy a{overflow-wrap:anywhere}
@media(max-width:900px){.hero-grid{gap:35px;grid-template-columns:1.1fr 1fr}.help-layout{gap:35px;grid-template-columns:210px 1fr}.policy-layout{gap:35px;grid-template-columns:200px 1fr}.contact-card{padding:25px}.game-note{gap:25px}}
@media(max-width:680px){.wrap{width:calc(100% - 40px)}.header-inner{padding:18px 20px;align-items:flex-start;gap:18px;flex-wrap:wrap}.brand{font-size:21px}.brand img{width:43px;height:43px}.site-header nav{gap:23px;width:100%;justify-content:flex-start}.site-header nav a{font-size:14px}.site-header nav .language{margin-left:auto}.support-hero{padding:45px 0 48px}.hero-grid{grid-template-columns:1fr;gap:32px}h1{font-size:3.1rem}.lead{font-size:17px}.contact-card{padding:26px}.contact-card h2{font-size:28px}.help-layout{grid-template-columns:1fr;gap:28px;padding-block:48px}.section-intro h2 br{display:none}.section-intro h2{font-size:30px}.section-intro h2 br::after{content:' '}.section-intro .eyebrow{margin-bottom:12px}summary{font-size:16px;padding-block:21px}details p{font-size:16px;padding-right:0}.game-note{grid-template-columns:1fr;padding:18px;gap:24px;margin-bottom:48px}.game-note>div{padding:0 5px}.game-note h2{font-size:26px}.game-note p:last-child{margin-bottom:6px}.site-footer>div{padding:25px 20px;gap:12px}.site-footer nav{gap:10px 20px}.privacy-hero{padding:40px 0 35px}.policy-layout{grid-template-columns:1fr;padding-block:36px 52px;gap:38px}.contents{position:static;padding-bottom:26px;border-bottom:1px solid var(--line)}.contents nav{display:grid;grid-template-columns:1fr 1fr;gap:14px}.policy h2{font-size:24px}.policy section{margin-bottom:28px;padding-bottom:28px}.effective{line-height:1.8}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.mode-section{padding-block:64px 42px}.mode-section>.eyebrow{color:var(--blue)}.mode-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:28px}.mode-card{display:block;color:var(--ink);text-decoration:none;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:26px}.mode-card:hover{border-color:var(--blue)}.mode-number{display:block;color:var(--blue);font-size:13px;letter-spacing:.12em;font-weight:800}.mode-card h3{font-size:22px;margin:12px 0 8px;line-height:1.25}.mode-card p{font-size:15px;color:var(--muted);margin-bottom:18px}.card-link{color:var(--blue);font-size:14px;font-weight:700}.mode-card:nth-child(3),.mode-card:nth-child(4){background:#fff7d7;border-color:#eddda9}.connection-note{display:grid;grid-template-columns:1fr 1.3fr;gap:50px;background:#e9f9ff;padding:32px;border-radius:16px;margin-block:10px 4px}.connection-note h2{font-size:29px}.connection-note .eyebrow{color:#216777}.connection-note ol{margin:0;padding-left:24px}.connection-note li{padding:0 0 15px 8px}.connection-note li:last-child{padding-bottom:0}.connection-note strong,.connection-note span{display:block}.connection-note span{color:var(--muted);font-size:15px}details:target{background:#f0f7ff;border-radius:8px;outline:2px solid #acc8ed;padding-inline:14px}.policy ul{padding-left:22px}.policy li{padding-bottom:14px;line-height:1.85}.support-hero .effective{margin:24px 0 0}
@media(max-width:900px){.mode-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.connection-note{gap:28px;grid-template-columns:1fr 1.2fr}}
@media(max-width:680px){.mode-section{padding-block:40px 28px}.mode-grid{gap:12px}.mode-card{padding:18px}.mode-card h3{font-size:19px}.mode-card p{font-size:14px}.connection-note{grid-template-columns:1fr;gap:10px;padding:24px}.connection-note h2{font-size:25px}.contents nav{gap:16px}.brand{white-space:nowrap}.policy-layout{overflow-wrap:anywhere}}
@media(max-width:380px){.mode-grid{grid-template-columns:1fr}}

.home-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:48px;align-items:center}.home-hero{padding-block:84px}.home-hero h1{font-size:clamp(3.2rem,5.8vw,5.5rem)}.hero-art{border-radius:20px;border:1px solid #75c9ff55;box-shadow:0 22px 60px #03132a66}.home-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap}.home-actions .button{margin:0}.gold-button{background:var(--yellow);color:var(--navy);border-bottom:4px solid #d9ac31}.gold-button:hover{background:#ffed98}.section-lead{color:var(--muted);font-size:19px}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:32px}.feature-card{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--paper)}.feature-card>img{width:100%;max-height:440px;object-fit:contain;background:#0e2e55;padding:20px}.feature-card>div{padding:28px}.feature-card h3{font-size:24px;line-height:1.25;margin:14px 0}.feature-card p{color:var(--muted)}.feature-card .text-link{font-size:14px}.home-note{margin-block:28px 0}.developer-contact{display:grid;grid-template-columns:1.5fr 1fr;gap:90px;align-items:center;padding-block:78px}.developer-contact .eyebrow{color:var(--blue)}.developer-contact p{color:var(--muted)}.developer-contact .button{margin-top:0}.privacy-link{display:block;text-align:center;margin-top:20px;font-size:14px}.button{transition:transform .18s ease,background .18s ease}.button:active{transform:translateY(2px)}
@media(max-width:1000px){.home-grid{gap:30px}.feature-grid{gap:16px}.feature-card>div{padding:22px}.feature-card h3{font-size:22px}.developer-contact{gap:40px}}
@media(max-width:760px){.home-grid{grid-template-columns:1fr;gap:38px}.home-hero{padding-block:44px 50px}.home-hero h1{font-size:clamp(2.8rem,11vw,4.6rem)}.home-hero .hero-art{width:100%;max-width:580px}.feature-grid{grid-template-columns:1fr}.feature-card{display:grid;grid-template-columns:.85fr 1fr;align-items:center}.feature-card>img{height:100%;max-height:380px}.feature-card>div{padding:22px}.developer-contact{grid-template-columns:1fr;gap:22px;padding-block:50px}.home-actions{gap:20px}.home-note{margin-top:20px}}
@media(max-width:440px){.feature-card{grid-template-columns:1fr}.feature-card>img{max-height:440px;padding:18px}.home-actions .button{width:100%}.home-actions{justify-content:center}.home-hero .eyebrow{font-size:10px}}
@media(prefers-reduced-motion:reduce){.button{transition:none}}