:root{--brand:rgb(213,5,5);--brand-dark:rgb(180,4,4);--text:#1f1f1f;--muted:#666;--light:#f6f6f6;--line:#e9e9e9;--card:#fff;--radius:18px;--shadow:0 10px 28px rgba(0,0,0,.07)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:#fff;color:var(--text);line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1120px,calc(100% - 32px));margin:0 auto}.site-header{position:relative;z-index:20;background:#fff;box-shadow:0 4px 18px rgba(0,0,0,.06)}.desktop-topbar,.desktop-nav{display:none}.mobile-header{height:62px;display:flex;align-items:center;justify-content:space-between;padding:0 14px;background:#fff;border-bottom:3px solid var(--brand-dark);position:relative}.menu-toggle{display:none}.menu-btn{width:42px;height:42px;border:1px solid var(--line);border-radius:12px;display:flex;flex-direction:column;gap:5px;align-items:center;justify-content:center;background:#fff;cursor:pointer}.menu-btn span{display:block;width:20px;height:2px;background:var(--brand-dark);border-radius:2px}.mobile-logo{position:absolute;left:50%;transform:translateX(-50%);display:flex;align-items:center;justify-content:center}.mobile-logo img{height:36px;max-width:130px;object-fit:contain}.top-action{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:#fff;border-radius:999px;padding:8px 18px;font-weight:700;border:1px solid rgba(213,5,5,.2);box-shadow:0 8px 18px rgba(213,5,5,.18);white-space:nowrap}.top-action:hover,.main-btn:hover{background:#b70404}.mobile-nav{position:absolute;left:0;right:0;top:62px;background:#fff;border-bottom:3px solid var(--brand-dark);box-shadow:0 16px 24px rgba(0,0,0,.08);display:none;padding:10px 16px 16px}.mobile-nav a{display:block;padding:13px 8px;border-bottom:1px solid var(--line);font-weight:700;color:#333}.mobile-nav a.active{color:var(--brand)}.menu-toggle:checked~.mobile-nav{display:block}.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 26px;border-radius:999px;background:var(--brand);color:#fff;font-weight:800;box-shadow:0 12px 24px rgba(213,5,5,.2);border:0}.section{padding:52px 0}.section.alt{background:var(--light)}.section-title{font-size:26px;line-height:1.25;margin:0 0 14px}.section-lead{margin:0 0 26px;color:var(--muted);font-size:16px}.official-hero{background:linear-gradient(180deg,#fff 0%,#f9f9f9 100%);padding:38px 0 48px}.hero-grid{display:grid;gap:28px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:800;background:#fff4f4;border:1px solid #ffd6d6;border-radius:999px;padding:4px 12px;margin-bottom:14px}.hero-title{font-size:34px;line-height:1.18;margin:0 0 16px;letter-spacing:-.5px}.hero-text{font-size:17px;color:#4b4b4b;margin:0 0 22px}.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.hero-tags span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 12px;color:#555;font-weight:700}.hero-visual{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);background:#fff;border:1px solid var(--line)}.hero-visual img{width:100%;height:100%;object-fit:cover}.category-main-grid{display:grid;gap:18px}.category-sub-grid{display:grid;gap:14px;margin-top:14px}.category-main-card,.category-sub-card,.focus-card,.info-item,.data-card,.security-card,.faq-item,.content-card,.notice-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.category-main-card{padding:24px;min-height:220px;display:flex;flex-direction:column;justify-content:space-between}.category-sub-card{padding:20px}.card-kicker{display:inline-flex;color:#fff;background:var(--brand);border-radius:999px;padding:3px 10px;font-size:13px;font-weight:800;margin-bottom:12px}.card-link{color:var(--brand);font-weight:800;margin-top:10px;display:inline-flex}.focus-grid{display:grid;gap:16px}.focus-card{padding:22px;position:relative;overflow:hidden}.focus-card:before{content:"";position:absolute;top:0;left:0;width:5px;height:100%;background:var(--brand)}.split-grid,.showcase-grid,.score-grid,.app-grid{display:grid;gap:24px;align-items:center}.split-panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:var(--shadow)}.info-item{padding:16px;margin-top:14px;box-shadow:none}.info-visual{border-radius:22px;overflow:hidden;margin-top:18px;border:1px solid var(--line)}.showcase-image,.app-image,.score-image{border-radius:24px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:#fff}.point-list{padding:0;margin:18px 0 0;list-style:none;display:grid;gap:10px}.point-list li{padding-left:26px;position:relative;color:#444}.point-list li:before{content:"";position:absolute;left:0;top:.65em;width:10px;height:10px;border-radius:50%;background:var(--brand)}.score-cards{display:grid;gap:14px;margin-top:18px}.data-card{padding:18px;box-shadow:none}.data-card strong{display:block;color:var(--brand);font-size:18px;margin-bottom:6px}.app-panel{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:var(--shadow)}.security-grid{display:grid;gap:16px}.security-card{padding:20px;box-shadow:none}.responsible-play{background:#f8f8f8;border-left:6px solid var(--brand);border-radius:18px;padding:24px;border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.faq-grid{display:grid;gap:14px}.faq-item{padding:20px;box-shadow:none}.faq-item h3{margin:0 0 8px;font-size:18px}.page-hero{background:linear-gradient(180deg,#fff 0%,#f7f7f7 100%);padding:42px 0 34px;border-bottom:1px solid var(--line)}.page-hero h1{font-size:32px;line-height:1.25;margin:0 0 14px}.page-hero p{color:#555;font-size:17px;margin:0;max-width:860px}.content-layout{display:grid;gap:20px}.content-card{padding:24px}.content-card h2,.content-card h3{margin-top:0}.mini-grid{display:grid;gap:14px;margin-top:16px}.mini-box{border:1px solid var(--line);border-radius:16px;background:#fff;padding:18px}.related-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.related-links a{border:1px solid #ffd1d1;color:var(--brand);background:#fff7f7;border-radius:999px;padding:8px 14px;font-weight:700}.download-steps{counter-reset:step;display:grid;gap:14px;margin-top:18px}.download-steps div{counter-increment:step;border:1px solid var(--line);border-radius:16px;padding:18px;background:#fff}.download-steps div:before{content:counter(step);display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--brand);color:#fff;margin-right:10px;font-weight:800}.cta-panel{text-align:center;background:#fff4f4;border:1px solid #ffd6d6;border-radius:24px;padding:30px;box-shadow:var(--shadow)}.site-footer{background:#202020;color:#eee;margin-top:0}.footer-grid{display:grid;gap:24px;padding:40px 0}.footer-logo{height:42px;margin-bottom:14px}.site-footer h3{margin:0 0 12px}.site-footer a{display:block;color:#fff;margin:8px 0}.site-footer p{color:#cfcfcf;margin:0}.footer-bottom{text-align:center;border-top:1px solid rgba(255,255,255,.12);padding:16px;color:#cfcfcf;font-size:14px}.search-icon{display:none}.search-icon:before{content:"";display:block;width:18px;height:18px;border:2px solid var(--brand-dark);border-radius:50%}.search-icon:after{content:"";display:block;width:9px;height:2px;background:var(--brand-dark);transform:rotate(45deg);margin-left:15px;margin-top:-3px;border-radius:2px}.table-like{display:grid;gap:10px}.table-row{display:grid;grid-template-columns:1fr;gap:8px;padding:14px;border:1px solid var(--line);border-radius:14px;background:#fff}.badge{display:inline-flex;background:#fff4f4;color:var(--brand);border:1px solid #ffd1d1;border-radius:999px;padding:2px 10px;font-weight:800;font-size:13px}.two-col{display:grid;gap:18px}@media (min-width:640px){.category-sub-grid,.security-grid,.mini-grid,.score-cards{grid-template-columns:repeat(2,1fr)}.focus-grid,.faq-grid{grid-template-columns:repeat(2,1fr)}.table-row{grid-template-columns:160px 1fr}}@media (min-width:900px){.mobile-header{display:none}.desktop-topbar{display:block;background:var(--brand-dark);color:#fff;font-size:14px}.topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between;gap:18px}.desktop-nav{display:block;background:#fff}.nav-inner{height:78px;display:flex;align-items:center;gap:22px}.brand img{height:48px;width:auto;object-fit:contain}.main-nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}.main-nav a{font-weight:800;color:#333;padding:12px 11px;border-radius:999px}.main-nav a.active,.main-nav a:hover{color:var(--brand);background:#fff3f3}.search-icon{display:inline-block;width:28px;height:28px;position:relative}.hero-grid,.split-grid,.showcase-grid,.score-grid,.app-grid{grid-template-columns:1.05fr .95fr}.official-hero{padding:64px 0}.hero-title{font-size:52px}.section{padding:72px 0}.section-title{font-size:34px}.category-main-grid{grid-template-columns:repeat(4,1fr)}.category-main-card:nth-child(1),.category-main-card:nth-child(4){transform:translateY(18px)}.category-sub-grid{grid-template-columns:repeat(4,1fr);margin-top:34px}.focus-grid{grid-template-columns:repeat(4,1fr)}.security-grid{grid-template-columns:repeat(3,1fr)}.faq-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}.page-hero{padding:70px 0 50px}.page-hero h1{font-size:46px}.content-layout{grid-template-columns:1.25fr .75fr}.two-col{grid-template-columns:repeat(2,1fr)}.mini-grid.three{grid-template-columns:repeat(3,1fr)}}@media (min-width:1120px){.main-nav a{padding:12px 15px}.category-main-card{min-height:250px}}@media (max-width:380px){.top-action{padding:7px 13px}.hero-title{font-size:30px}.mobile-logo img{height:32px;max-width:110px}.container{width:min(100% - 24px,1120px)}}