:root{
  --bg-0:#06060b;
  --bg-1:#0d0d18;
  --bg-2:#15152a;
  --line:#23234a;
  --text-0:#e8e6ff;
  --text-1:#a8a4cc;
  --text-2:#6f6c94;
  --neon-p:#d946ef;
  --neon-r:#f43f5e;
  --neon-c:#22d3ee;
  --neon-grad:linear-gradient(90deg,#d946ef 0%,#f43f5e 50%,#fb923c 100%);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg-0);color:var(--text-0);font-family:'Segoe UI',-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
body{min-height:100vh;overflow-x:hidden}
a{color:inherit;text-decoration:none}
kbd{display:inline-block;padding:1px 6px;border:1px solid var(--line);border-radius:4px;background:#1a1a30;font-family:monospace;font-size:12px;color:var(--text-0)}

.page__bookmark-bar{position:sticky;top:0;z-index:50;background:linear-gradient(90deg,rgba(217,70,239,.18),rgba(244,63,94,.18));border-bottom:1px solid var(--line);padding:10px 16px;display:flex;align-items:center;justify-content:center;gap:14px;font-size:14px;color:var(--text-0);backdrop-filter:blur(8px)}
.page__bookmark-text{text-align:center}
.page__bookmark-close{background:transparent;border:1px solid var(--line);color:var(--text-1);width:24px;height:24px;border-radius:50%;cursor:pointer;font-size:12px;line-height:22px}
.page__bookmark-close:hover{color:var(--text-0);border-color:var(--neon-p)}

.hero{position:relative;padding:64px 20px 56px;background:
  radial-gradient(1200px 600px at 50% -10%,rgba(217,70,239,.25),transparent 60%),
  radial-gradient(800px 400px at 80% 30%,rgba(244,63,94,.18),transparent 60%),
  radial-gradient(800px 400px at 20% 30%,rgba(34,211,238,.16),transparent 60%),
  var(--bg-0);overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,rgba(255,255,255,.02) 0 1px,transparent 1px 4px);pointer-events:none}
.hero__inner{position:relative;max-width:980px;margin:0 auto;text-align:center;z-index:1}
.hero__brand{display:inline-flex;align-items:center;gap:10px;padding:6px 14px;border:1px solid var(--line);border-radius:999px;background:rgba(13,13,24,.6);margin-bottom:22px}
.hero__brand-mark{font-size:18px}
.hero__brand-name{font-size:14px;letter-spacing:2px;color:var(--text-1)}
.hero__title{font-size:clamp(34px,5vw,56px);font-weight:800;line-height:1.15;background:var(--neon-grad);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:1px;margin-bottom:14px}
.hero__sub{color:var(--text-1);max-width:640px;margin:0 auto 36px;font-size:15px}

.hero__main-domain{display:inline-block;background:linear-gradient(180deg,rgba(217,70,239,.08),rgba(217,70,239,.02));border:1px solid rgba(217,70,239,.35);border-radius:18px;padding:24px 28px;min-width:min(560px,92vw);box-shadow:0 0 60px rgba(217,70,239,.18)}
.hero__main-domain-label{font-size:12px;letter-spacing:4px;color:var(--neon-c);text-transform:uppercase;margin-bottom:14px}
.hero__main-domain-box{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px;margin-bottom:10px}
.hero__main-domain-link{font-size:clamp(20px,3vw,30px);font-weight:700;color:var(--text-0);letter-spacing:.5px;text-shadow:0 0 12px rgba(217,70,239,.5);word-break:break-all}
.hero__main-domain-link:hover{color:var(--neon-p)}
.hero__main-domain-copy{cursor:pointer;background:var(--neon-grad);color:#fff;border:0;border-radius:10px;padding:10px 18px;font-weight:700;letter-spacing:1px;box-shadow:0 6px 24px rgba(244,63,94,.35);transition:transform .15s ease}
.hero__main-domain-copy:hover{transform:translateY(-1px)}
.hero__main-domain-copy:active{transform:translateY(1px)}
.hero__main-domain-tip{color:var(--text-2);font-size:13px}

.content{max-width:980px;margin:0 auto;padding:48px 20px 24px}

.backup{margin-bottom:48px}
.backup__title,.notice__title,.contact__title{font-size:20px;font-weight:700;color:var(--text-0);margin-bottom:18px;display:flex;align-items:center;gap:10px}
.backup__title::before,.notice__title::before,.contact__title::before{content:"";display:inline-block;width:6px;height:18px;background:var(--neon-grad);border-radius:3px}
.backup__grid{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.backup__item{display:flex;align-items:center;gap:12px;background:var(--bg-1);border:1px solid var(--line);border-radius:14px;padding:14px 16px;transition:border-color .2s,box-shadow .2s}
.backup__item:hover{border-color:var(--neon-p);box-shadow:0 0 20px rgba(217,70,239,.18)}
.backup__tag{flex:0 0 auto;font-size:11px;letter-spacing:1px;padding:3px 8px;border-radius:999px;color:#fff}
.backup__tag--1{background:#d946ef}
.backup__tag--2{background:#f43f5e}
.backup__tag--3{background:#fb923c}
.backup__tag--4{background:#22d3ee}
.backup__tag--5{background:#10b981}
.backup__link{flex:1 1 auto;font-family:'Consolas','Cascadia Code',monospace;color:var(--text-0);font-size:14px;word-break:break-all}
.backup__link:hover{color:var(--neon-c)}
.backup__copy{cursor:pointer;background:transparent;border:1px solid var(--line);color:var(--text-1);padding:5px 10px;border-radius:8px;font-size:12px;transition:all .15s}
.backup__copy:hover{border-color:var(--neon-c);color:var(--neon-c)}

.notice{background:var(--bg-1);border:1px solid var(--line);border-left:4px solid var(--neon-r);border-radius:14px;padding:20px 22px;margin-bottom:48px}
.notice__body{color:var(--text-1);font-size:14px}
.notice__line{margin:6px 0}
.notice__strong{color:var(--neon-p)}

.contact{margin-bottom:48px}
.contact__list{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.contact__item{background:var(--bg-1);border:1px solid var(--line);border-radius:12px;padding:14px 16px;display:flex;flex-direction:column;gap:4px}
.contact__label{color:var(--text-2);font-size:12px;letter-spacing:2px;text-transform:uppercase}
.contact__value{color:var(--text-0);font-family:'Consolas','Cascadia Code',monospace;font-size:15px;word-break:break-all}

.backup__title-sub{font-size:13px;font-weight:400;color:var(--text-2);letter-spacing:0}

address.contact__list{font-style:normal}

.footer{border-top:1px solid var(--line);padding:24px 20px;text-align:center;color:var(--text-2);font-size:12px;background:var(--bg-0)}
.footer__copy{margin-bottom:6px}
.footer__meta{color:var(--text-2);font-size:11px;letter-spacing:1px;opacity:.8}
.footer__meta time{color:var(--text-1)}

.toast{position:fixed;bottom:32px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--bg-2);border:1px solid var(--neon-p);color:var(--text-0);padding:10px 20px;border-radius:999px;font-size:14px;opacity:0;pointer-events:none;transition:all .25s ease;z-index:60;box-shadow:0 8px 32px rgba(217,70,239,.3)}
.toast.is-show{opacity:1;transform:translateX(-50%) translateY(0)}

@media (max-width:640px){
  .hero{padding:40px 16px 36px}
  .content{padding:32px 16px 16px}
  .page__bookmark-bar{font-size:12px;flex-wrap:wrap}
}