:root{--bg:#06101a;--panel:#0c1926;--panel2:#111f30;--line:#203247;--text:#eef7ff;--muted:#8fa3b8;--cyan:#28d7c7;--gold:#ffc95a;--purple:#6c3de0;--radius:16px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 50% -10%,#17324a 0,#081521 35%,#050c14 75%);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}.topbar{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;background:rgba(5,13,22,.93);border-bottom:1px solid rgba(255,255,255,.06);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}.brand{display:flex;align-items:center;gap:10px}.brand-mark{width:38px;height:38px;border:1px solid #2fe1c9;border-radius:10px;display:grid;place-items:center;font-weight:900;color:#2fe1c9;background:linear-gradient(135deg,#0d2531,#123b42)}.brand strong{display:block;font-size:16px;letter-spacing:.5px}.brand small{display:block;color:#7690a7;font-size:10px;margin-top:2px}.top-cta{background:linear-gradient(135deg,#ffca5b,#ff9d2f);color:#1b1204;border-radius:999px;padding:9px 14px;font-size:12px;font-weight:800}.top-actions{display:flex;align-items:center;gap:7px;flex-wrap:nowrap}.top-mini{border:1px solid #244158;background:#0a1824;color:#a8c0d2;border-radius:999px;padding:8px 10px;font-size:10px;font-weight:700;white-space:nowrap}.top-mini:hover{border-color:#35d8c3;color:#dffef8}.favorite-btn{font-family:inherit;cursor:pointer}.favorite-btn:focus{outline:1px solid #35d8c3;outline-offset:2px}.notice{max-width:760px;margin:8px auto 0;padding:9px 14px;border:1px solid #26384c;background:#0b1824;border-radius:10px;color:#a9bfd1;font-size:12px;display:flex;gap:8px}.hero,.section,.seo-panel,footer{max-width:760px;margin-left:auto;margin-right:auto}.hero{padding:36px 18px 18px}.eyebrow{font-size:10px;color:#31ddc8;letter-spacing:2.5px;font-weight:800}.hero h1{font-size:34px;margin:7px 0 8px;letter-spacing:1px}.hero p{margin:0;color:#9eb2c4;line-height:1.8;font-size:14px;max-width:610px}.hero-tags{display:flex;gap:8px;margin-top:16px;flex-wrap:wrap}.hero-tags span{font-size:11px;padding:6px 10px;border-radius:999px;border:1px solid #274157;background:#0b1c2a;color:#b9cfdf}.section,.seo-panel{padding:18px}.section-title{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:12px}.section-title small{font-size:9px;letter-spacing:2px;color:#36d8c2}.section-title h2{font-size:20px;margin:2px 0 0}.section-note{font-size:10px;color:#66849a}.platform-list{display:grid;gap:10px}.platform-card{min-height:86px;display:flex;align-items:center;gap:12px;padding:12px;background:linear-gradient(135deg,#14233a,#28144e 90%);border:1px solid rgba(128,97,244,.24);border-radius:14px;box-shadow:0 8px 24px rgba(0,0,0,.18);transition:.18s transform,.18s border-color}.platform-card:hover{transform:translateY(-1px);border-color:rgba(87,223,202,.5)}.logo-wrap{width:50px;height:50px;flex:0 0 50px;background:#0a1320;border:1px solid #26384b;border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.logo-wrap img{width:80%;height:80%;object-fit:contain;transform:scale(var(--logo-scale,1))}.logo-wrap span{font-size:20px;font-weight:900;color:#42ddc7}.platform-copy{min-width:0;flex:1}.platform-name{font-weight:800;font-size:15px;display:flex;align-items:center;gap:7px}.platform-name em{font-style:normal;font-size:8px;padding:3px 6px;border-radius:999px;background:#ff5367;color:white}.platform-copy p{margin:6px 0 0;color:#b2b8cf;font-size:11px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.arrow{font-size:28px;color:#8e78d7;padding:0 4px}.empty{padding:24px;border:1px dashed #34506b;border-radius:14px;color:#8ea7bb;text-align:center}.friend-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.friend-card{position:relative;min-height:132px;padding:16px;border-radius:16px;background:linear-gradient(145deg,#0c2630,#123f3a);border:1px solid rgba(46,221,195,.2);overflow:hidden}.friend-card:nth-child(2){background:linear-gradient(145deg,#241431,#3a193d);border-color:rgba(209,88,226,.22)}.friend-card strong{display:block;font-size:16px;margin-top:18px}.friend-card p{font-size:11px;line-height:1.55;color:#a9bdc9;margin:7px 0 10px}.friend-tag{position:absolute;top:12px;right:12px;font-size:9px;padding:4px 7px;border-radius:999px;background:rgba(255,255,255,.08);color:#c7d7e0}.friend-go{font-size:11px;color:#4ee0c9;font-weight:700}.seo-panel{margin-top:6px}.seo-intro{color:#9cafc0;font-size:13px;line-height:1.8;margin:0 0 12px}.seo-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.seo-grid article{background:#0b1723;border:1px solid #1d3043;border-radius:14px;padding:14px}.seo-grid h3{font-size:14px;margin:0 0 7px;color:#f2f7fb}.seo-grid p{font-size:11px;line-height:1.65;color:#8298ab;margin:0}.faq details{border-bottom:1px solid #1c2e40;background:#0a1621;padding:0 14px}.faq details:first-of-type{border-radius:14px 14px 0 0}.faq details:last-of-type{border-radius:0 0 14px 14px;border-bottom:0}.faq summary{cursor:pointer;padding:15px 0;font-weight:700;font-size:13px}.faq details p{margin:0;padding:0 0 15px;color:#8da3b5;font-size:12px;line-height:1.7}.about p{background:#0a1621;border:1px solid #1d3043;border-radius:14px;padding:16px;color:#8da3b5;font-size:12px;line-height:1.8;margin:0}footer{padding:26px 18px 42px;text-align:center;color:#667f94;font-size:11px}footer nav{display:flex;justify-content:center;flex-wrap:wrap;gap:16px;margin-bottom:16px;color:#859db0}footer small{display:block;margin-top:6px;color:#496174}.info-copy{display:grid;gap:10px}.info-copy p{margin:0;padding:14px 16px;background:#0a1621;border:1px solid #1d3043;border-radius:14px;color:#8da3b5;font-size:12px;line-height:1.85}.info-copy strong{color:#dbe8f2}.about strong{color:#dbe8f2}@media(max-width:520px){.topbar{height:auto;min-height:58px;padding-top:8px;padding-bottom:8px;gap:8px}.brand small{display:none}.top-actions{gap:5px}.top-mini{padding:7px 8px;font-size:9px}.top-cta{padding:8px 10px;font-size:10px}.notice{margin:7px 10px 0}.hero{padding-top:28px}.hero h1{font-size:30px}.friend-grid,.seo-grid{grid-template-columns:1fr}.section,.seo-panel{padding:14px 12px}.platform-card{border-radius:12px}.friend-card{min-height:112px}}
@media(min-width:900px){
  body{padding-bottom:40px}
  .topbar{height:70px;padding-left:max(24px,calc((100vw - 1180px)/2));padding-right:max(24px,calc((100vw - 1180px)/2))}
  .notice,.hero,.section,.seo-panel,footer{max-width:1180px}
  .notice{margin-top:10px;padding:10px 16px}
  .section,.seo-panel{padding:22px 18px}
  .section-title{margin-bottom:14px}
  .section-title h2{font-size:22px}
  .platform-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 16px}
  .platform-card{min-height:94px;padding:14px 15px;border-radius:15px}
  .logo-wrap{width:54px;height:54px;flex-basis:54px}
  .platform-name{font-size:16px}
  .platform-copy p{font-size:11.5px;white-space:nowrap;text-overflow:ellipsis;display:block;overflow:hidden}
  .friend-grid{gap:16px}
  .friend-card{min-height:124px;padding:18px}
  .hero{padding:24px 18px 18px;margin-top:4px;background:linear-gradient(135deg,rgba(12,25,38,.82),rgba(18,27,47,.7));border:1px solid #1d3043;border-radius:16px}
  .hero h1{font-size:36px}
  .hero p{max-width:920px}
  .seo-panel{margin-top:14px}
  .seo-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
  .seo-grid article{min-height:142px;padding:16px}
  .seo-grid h3{font-size:15px}
  .seo-grid p{font-size:11.5px}
  .faq details,.about p{font-size:13px}
  footer{padding-top:34px}
}
@media(min-width:1400px){
  .notice,.hero,.section,.seo-panel,footer{max-width:1240px}
  .topbar{padding-left:max(28px,calc((100vw - 1240px)/2));padding-right:max(28px,calc((100vw - 1240px)/2))}
}