:root{
  --bg:#0a0e17; --bg2:#0f141f; --card:#121829; --card2:#1a2236;
  --line:rgba(255,255,255,0.08); --gold:#d4a94a; --gold2:#f0ce6f;
  --blue:#3b82f6; --cyan:#22d3ee; --green:#34d399; --red:#f87171;
  --text:#e8edf5; --muted:#8b97ad;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit}
.container{max-width:1160px;margin:0 auto;padding:0 24px}
.t-bold{color:var(--gold);font-weight:700}

/* nav */
nav{position:fixed;top:0;left:0;right:0;z-index:100;backdrop-filter:blur(12px);background:rgba(10,14,23,0.85);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:.5px}
.logo .badge{background:linear-gradient(135deg,var(--gold),var(--gold2));color:#1a1300;font-size:12px;padding:2px 8px;border-radius:6px;font-weight:800}
.nav-links{display:flex;gap:26px;font-size:14px;color:var(--muted)}
.nav-links a{transition:.2s}.nav-links a:hover{color:var(--gold)}
.nav-cta{background:linear-gradient(135deg,var(--gold),var(--gold2));color:#1a1300;padding:9px 20px;border-radius:8px;font-weight:700;font-size:14px;transition:.2s}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(212,169,74,.35)}
@media(max-width:980px){.nav-links{display:none}}

/* hero */
.hero{padding:150px 0 100px;background:radial-gradient(circle at 20% 20%,rgba(59,130,246,.15),transparent 40%),radial-gradient(circle at 80% 60%,rgba(212,169,74,.12),transparent 45%),var(--bg);position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}}
.hero h1{font-size:46px;line-height:1.2;font-weight:900;letter-spacing:-.5px;margin-bottom:20px}
.hero h1 .hl{color:var(--gold);position:relative;display:inline-block}
.hero h1 .hl::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;background:rgba(212,169,74,.25);z-index:-1;border-radius:4px}
.hero .sub{font-size:18px;color:var(--muted);margin-bottom:32px;max-width:540px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px}
.btn{padding:14px 30px;border-radius:10px;font-weight:700;font-size:15px;cursor:pointer;border:none;transition:.2s;display:inline-flex;align-items:center;gap:8px}
.btn-primary{background:linear-gradient(135deg,var(--gold),var(--gold2));color:#1a1300}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(212,169,74,.4)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap}
.stat .num{font-size:32px;font-weight:900;color:var(--gold)}.stat .lbl{font-size:13px;color:var(--muted)}
.hero-visual{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:0 30px 60px rgba(0,0,0,.4)}
.flow-title{font-size:13px;color:var(--muted);margin-bottom:18px;text-transform:uppercase;letter-spacing:1px}
.flow{display:flex;flex-direction:column;gap:12px}
.flow-step{display:flex;align-items:center;gap:14px;padding:12px 14px;border-radius:10px;background:var(--card2);border:1px solid var(--line);font-size:14px}
.flow-step .idx{width:30px;height:30px;border-radius:8px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--gold),var(--gold2));color:#1a1300;font-weight:800;font-size:14px;flex-shrink:0}
.flow-step .desc{color:var(--muted);font-size:12px}
.flow-arrow{text-align:center;color:var(--gold);font-size:18px;line-height:1}
.flow-result{margin-top:6px;padding:14px;border-radius:10px;background:rgba(52,211,153,.1);border:1px solid rgba(52,211,153,.3);font-size:14px;color:var(--green);text-align:center;font-weight:700}

/* sections */
section{padding:90px 0}
.sec-head{text-align:center;margin-bottom:56px}
.sec-tag{color:var(--gold);font-size:13px;font-weight:700;letter-spacing:2px;text-transform:uppercase}
.sec-head h2{font-size:36px;font-weight:900;margin-top:10px}
.sec-head p{color:var(--muted);font-size:16px;max-width:640px;margin:14px auto 0}

/* pricing */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:860px){.price-grid{grid-template-columns:1fr}}
.price-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:32px;position:relative;transition:.25s;display:flex;flex-direction:column}
.price-card:hover{transform:translateY(-6px)}
.price-card.featured{border-color:var(--gold);box-shadow:0 0 0 1px var(--gold),0 20px 50px rgba(212,169,74,.15)}
.price-card .ribbon{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--gold),var(--gold2));color:#1a1300;padding:5px 18px;border-radius:20px;font-size:12px;font-weight:800;white-space:nowrap}
.price-card h3{font-size:20px;margin-bottom:8px}
.price-card .desc{color:var(--muted);font-size:13px;margin-bottom:18px}
.price-card .price{font-size:40px;font-weight:900;color:var(--gold);margin-bottom:4px}
.price-card .price small{font-size:15px;color:var(--muted);font-weight:400}
.price-card ul{list-style:none;margin:20px 0;flex:1}
.price-card li{padding:7px 0;font-size:13px;color:var(--muted);display:flex;gap:8px}
.price-card li .ok{color:var(--green);font-weight:800;flex-shrink:0}
.price-card li.off{opacity:.4}.price-card li.off .ok{color:var(--red)}
.price-btn{width:100%;padding:13px;border-radius:10px;font-weight:700;font-size:14px;cursor:pointer;border:1px solid var(--line);background:transparent;color:var(--text);transition:.2s;text-align:center;display:block}
.price-card.featured .price-btn{background:linear-gradient(135deg,var(--gold),var(--gold2));color:#1a1300;border:none}

/* cta/risk/footer */
.cta{padding:100px 0;background:radial-gradient(circle at 50% 50%,rgba(212,169,74,.12),transparent 60%),var(--bg2);text-align:center}
.cta h2{font-size:38px;font-weight:900;margin-bottom:16px}
.cta p{color:var(--muted);font-size:16px;max-width:560px;margin:0 auto 32px}
.cta .btn-primary{font-size:17px;padding:16px 40px}
.risk{background:rgba(248,113,113,.08);border:1px solid rgba(248,113,113,.25);border-radius:10px;padding:18px;margin-top:24px;font-size:12px;color:var(--muted);line-height:1.8;text-align:left}
footer{background:var(--bg);border-top:1px solid var(--line);padding:50px 0 30px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:36px}
@media(max-width:700px){.foot-grid{grid-template-columns:1fr 1fr}}
.foot-brand p{color:var(--muted);font-size:13px;margin-top:12px;max-width:280px}
.foot-col h5{font-size:14px;margin-bottom:14px;color:var(--gold)}
.foot-col a{display:block;color:var(--muted);font-size:13px;padding:5px 0;transition:.2s}.foot-col a:hover{color:var(--gold)}

/* 联系本人 / 支付未开放提示 */
.contact-note{background:rgba(212,169,74,.1);border:1px solid rgba(212,169,74,.35);border-radius:12px;padding:16px 20px;margin-bottom:28px;font-size:14px;color:var(--text);text-align:left}
.contact-note b{color:var(--gold)}
.foot-qq{display:block;color:var(--gold);font-size:14px;font-weight:700;padding:5px 0}
.foot-qq-note{display:block;color:var(--muted);font-size:12px;padding:2px 0 5px}
.foot-bottom{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;color:var(--muted);font-size:12px}

/* auth form */
.auth-wrap{max-width:420px;margin:140px auto 60px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:36px}
.auth-wrap h2{font-size:24px;font-weight:900;margin-bottom:6px}
.auth-wrap p{color:var(--muted);font-size:13px;margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.field input{width:100%;padding:12px 14px;border-radius:10px;background:var(--bg2);border:1px solid var(--line);color:var(--text);font-size:14px}
.field input:focus{outline:none;border-color:var(--gold)}
.form-msg{font-size:13px;margin:10px 0;min-height:18px}
.form-msg.err{color:var(--red)}.form-msg.ok{color:var(--green)}
.toggle{font-size:13px;color:var(--muted);margin-top:14px;text-align:center}
.toggle a{color:var(--gold)}

/* dashboard */
.dash{padding:120px 0 80px}
.dash-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media(max-width:860px){.dash-grid{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px}
.card h3{font-size:17px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.kv{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px dashed var(--line);font-size:13px}
.kv:last-child{border:none}
.kv .k{color:var(--muted)}.kv .v{font-weight:700}
.badge-tier{display:inline-block;padding:3px 12px;border-radius:20px;font-size:12px;font-weight:800;background:linear-gradient(135deg,var(--gold),var(--gold2));color:#1a1300}
.badge-status{display:inline-block;padding:3px 12px;border-radius:20px;font-size:12px;font-weight:700;background:rgba(52,211,153,.15);color:var(--green)}
.feat-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.chip{font-size:12px;padding:5px 11px;border-radius:8px;background:var(--card2);border:1px solid var(--line);color:var(--text)}
.chip.on{color:var(--gold);border-color:rgba(212,169,74,.4)}
.code-box{background:var(--bg2);border:1px solid var(--line);border-radius:10px;padding:12px;font-family:ui-monospace,Menlo,monospace;font-size:11px;word-break:break-all;color:var(--cyan);max-height:120px;overflow:auto}
.btn-sm{padding:8px 16px;border-radius:8px;font-weight:700;font-size:13px;cursor:pointer;border:1px solid var(--line);background:transparent;color:var(--text);transition:.2s}
.btn-sm:hover{border-color:var(--gold);color:var(--gold)}
.btn-sm.gold{background:linear-gradient(135deg,var(--gold),var(--gold2));color:#1a1300;border:none}

/* admin */
.admin-wrap{padding:120px 0 80px}
table.tbl{width:100%;border-collapse:collapse;font-size:13px;margin-top:10px}
table.tbl th,table.tbl td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left}
table.tbl th{color:var(--gold);background:var(--card2)}
table.tbl tr{background:var(--card)}
.btn-sm.danger{color:var(--red);border-color:rgba(248,113,113,.4)}