:root{
  --bg:#061426; --bg2:#0a2744; --card:#0d2240; --line:#1d4470;
  --txt:#dfe9f3; --dim:#8fa9c4; --acc:#4cc3ff; --gold:#ffb84d; --ok:#5ad48a; --bad:#ff7a7a;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:system-ui,"Microsoft YaHei","PingFang SC",sans-serif;background:linear-gradient(180deg,var(--bg) 0%,var(--bg2) 100%);color:var(--txt);line-height:1.6}
img{max-width:100%;display:block}
a{color:var(--acc);text-decoration:none}
h1,h2,h3{font-weight:800}
.hidden{display:none!important}

/* nav */
#nav{position:sticky;top:0;z-index:50;background:rgba(6,20,38,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-in{max-width:1080px;margin:0 auto;display:flex;align-items:center;gap:18px;padding:10px 20px}
.brand{display:flex;align-items:baseline;gap:8px}
.brand-name{font-size:20px;font-weight:900;background:linear-gradient(90deg,#7fd8ff,#4cc3ff,#ffb84d);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:2px}
.brand-sub{font-size:11px;color:var(--dim);border:1px solid var(--line);padding:1px 8px;border-radius:10px}
.nav-links{display:flex;gap:16px;margin-left:auto;font-size:14px}
.nav-links a{color:var(--dim);transition:.2s}
.nav-links a:hover{color:var(--acc)}
.nav-user{font-size:13px;color:var(--gold)}

/* hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-in{max-width:1080px;margin:0 auto;display:grid;grid-template-columns:1.25fr .75fr;gap:32px;align-items:center;padding:56px 20px 48px}
.hero-copy h1{font-size:52px;letter-spacing:6px;background:linear-gradient(120deg,#9fe6ff 20%,#4cc3ff 55%,#ffb84d 90%);-webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:0 8px 40px rgba(76,195,255,.25)}
.slogan{font-size:18px;color:var(--acc);letter-spacing:3px;margin:6px 0 14px}
.pitch{color:var(--dim);max-width:520px}
.hero-btns{display:flex;gap:14px;margin:26px 0 18px;flex-wrap:wrap}
.hero-stats{display:flex;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--dim)}
.hero-art{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:0 24px 60px rgba(0,0,0,.5);transform:rotate(1.2deg)}
.hero-art img{height:460px;object-fit:cover;object-position:top}
.hero-art-badge{position:absolute;left:0;right:0;bottom:0;padding:8px;text-align:center;background:linear-gradient(180deg,transparent,rgba(4,14,28,.9));font-size:14px;color:var(--gold);letter-spacing:2px}

/* buttons */
.btn{border:0;border-radius:10px;cursor:pointer;font-size:14px;padding:8px 16px;background:#1b3a5f;color:var(--txt);transition:.2s;font-family:inherit}
.btn:hover{filter:brightness(1.15)}
.btn.primary{background:linear-gradient(120deg,#2d9be0,#4cc3ff)}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--dim)}
.btn.big{display:flex;flex-direction:column;align-items:center;gap:2px;padding:14px 26px;text-align:center}
.btn.big b{font-size:16px}
.btn.big small{font-size:11px;opacity:.75;font-weight:400}
.btn.wide{width:100%;margin-top:12px;padding:11px}
.btn.sm{padding:4px 12px;font-size:12px}
.btn:disabled{opacity:.55;cursor:not-allowed}

/* sections */
.sec{border-bottom:1px solid var(--line)}
.sec.alt{background:rgba(10,32,58,.5)}
.sec-in{max-width:1080px;margin:0 auto;padding:48px 20px}
.sec h2{font-size:28px;letter-spacing:2px;margin-bottom:8px}
.sec h2::after{content:"";display:block;width:56px;height:3px;margin-top:8px;background:linear-gradient(90deg,var(--acc),transparent);border-radius:2px}
.lead{color:var(--dim);max-width:760px;margin-bottom:24px}
.sub{margin:26px 0 12px;font-size:16px;color:var(--acc)}
.ratio{color:var(--gold);font-size:16px}

/* features */
.features{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px}
.feat:hover{border-color:var(--acc)}
.feat-ico{font-size:30px;margin-bottom:8px}
.feat h3{font-size:16px;margin-bottom:6px}
.feat p{font-size:13.5px;color:var(--dim)}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;margin-top:28px}
.gallery figure{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--card)}
.gallery img{height:320px;width:100%;object-fit:cover;object-position:top}
.gallery figcaption{padding:10px 14px;font-size:13px;color:var(--dim)}

/* cdk */
.cdk-box{display:flex;gap:10px;max-width:520px}
.cdk-box input{flex:1;background:#081b33;border:1px solid var(--line);border-radius:10px;color:var(--txt);padding:12px 14px;font-size:15px;letter-spacing:1px}
.cdk-result{margin-top:14px;font-size:14px;min-height:24px}
.cdk-result .ok{color:var(--ok)}
.cdk-result .bad{color:var(--bad)}
.code-table{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:10px}
.code-row{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 14px;font-size:13.5px}
.code-row code{font-family:Consolas,monospace;color:var(--gold);font-size:15px;font-weight:700}
.code-row span{color:var(--dim)}

/* account */
.account-box{max-width:440px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}
.tabs{display:flex;gap:6px;margin-bottom:16px}
.tab{flex:1;background:#081b33;border:1px solid var(--line);color:var(--dim);border-radius:8px;padding:8px;cursor:pointer;font-size:14px}
.tab.active{background:linear-gradient(120deg,#2d9be0,#4cc3ff);color:#04101f;font-weight:700}
label{display:block;font-size:12.5px;color:var(--dim);margin:10px 0 4px}
input{width:100%;background:#081b33;border:1px solid var(--line);border-radius:8px;color:var(--txt);padding:10px 12px;font-size:14px}
.hint{font-size:12px;color:var(--gold);margin-top:12px}
.msg{margin-top:12px;font-size:13.5px;min-height:20px}
.msg.ok{color:var(--ok)} .msg.bad{color:var(--bad)}
.recover-code{background:#123156;border:1px dashed var(--gold);border-radius:10px;padding:12px 16px;margin-top:12px;text-align:center}
.recover-code b{font-size:24px;letter-spacing:6px;color:var(--gold);font-family:Consolas,monospace}
/* 注册验证码(与充值中心同款一次性 SVG; 2026-09-29 防批量注册) */
.cap-row{display:flex;gap:8px;align-items:stretch}
.cap-row input{flex:1;min-width:0}
.cap-img{width:132px;height:42px;flex:none;border-radius:8px;overflow:hidden;cursor:pointer;background:#f2efe6;border:1px solid var(--line)}
.cap-img svg{width:100%;height:100%;display:block}
.account-user .user-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;font-size:18px;font-weight:700}
.char-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px 18px;font-size:13.5px}
.char-card .k{color:var(--dim)}
.char-card .v{font-weight:700;color:var(--acc)}
.char-card.public{margin-top:16px}
.history{display:grid;gap:8px;font-size:13px;color:var(--dim)}
.history .h-row{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:8px 12px;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
.pwd-change{margin-top:20px;font-size:13.5px;color:var(--dim)}
.pwd-change summary{cursor:pointer;color:var(--acc)}
.pwd-change input{margin:6px 0}

/* recharge */
.voucher-bar{background:linear-gradient(120deg,#123156,#0d2240);border:1px solid var(--line);border-radius:12px;padding:14px 18px;font-size:15px;margin-bottom:20px}
.voucher-bar b{color:var(--gold);font-size:22px;font-family:Consolas,monospace}
.hint-inline{font-size:12px;color:var(--dim)}
.packs{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.pack{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:10px}
.pack:hover{border-color:var(--acc)}
.pack .p-name{font-weight:700;font-size:15px}
.pack .p-rewards{font-size:12.5px;color:var(--dim);flex:1;line-height:1.8}
.pack .p-foot{display:flex;align-items:center;justify-content:space-between}
.pack .p-cost{color:var(--gold);font-weight:800;font-size:17px}
.pack .p-cost small{font-size:11px;color:var(--dim);font-weight:400}

/* servers */
.servers{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px;margin-bottom:8px}
.server{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px;display:flex;align-items:center;gap:14px}
.server .dot{width:10px;height:10px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px var(--ok)}
.server .s-name{font-weight:700}
.server .s-status{margin-left:auto;color:var(--ok);font-size:13px}

/* footer */
footer{padding:26px 20px;text-align:center;font-size:12.5px;color:var(--dim)}
.foot-in{max-width:1080px;margin:0 auto;display:flex;flex-direction:column;gap:8px}
.foot-dl{display:flex;align-items:center;justify-content:center;gap:10px}

/* toast */
#toast{position:fixed;left:50%;bottom:36px;transform:translateX(-50%) translateY(80px);background:#123d2a;border:1px solid var(--ok);color:#c9f0d4;padding:10px 22px;border-radius:10px;font-size:14px;transition:.3s;z-index:99;max-width:80vw}
#toast.show{transform:translateX(-50%) translateY(0)}
#toast.bad{background:#3d1a1a;border-color:var(--bad);color:#ffd6d6}

@media (max-width:820px){
  .hero-in{grid-template-columns:1fr;padding-top:36px}
  .hero-copy h1{font-size:38px}
  .hero-art img{height:340px}
  .nav-links{display:none}
  .cdk-box{flex-direction:column}
}