*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:#0f1020;color:#e8e8f0;line-height:1.6}
.nav{display:flex;justify-content:space-between;align-items:center;padding:14px 28px;border-bottom:1px solid rgba(255,255,255,.08);background:rgba(21,22,43,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);position:sticky;top:0;z-index:50}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;color:#fff;font-size:18px;text-decoration:none}
.brand .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,#7c5cff,#36d1dc);box-shadow:0 0 14px rgba(124,92,255,.9)}
.links a{color:#cfcfff;text-decoration:none;margin-left:18px;font-size:14px}
.links a:hover{color:#7c5cff}
.container{max-width:1040px;margin:0 auto;padding:28px 20px}
h1{font-size:26px;margin-bottom:8px}
h2{font-size:19px;margin:18px 0 10px;color:#fff}
a.btn{display:inline-block;background:#7c5cff;color:#fff;padding:9px 18px;border-radius:8px;text-decoration:none;font-size:14px}
.btn.s{background:#2a2c44;padding:6px 12px;font-size:13px}
.btn.danger{background:#b3424a}
.card{background:#1a1c33;border:1px solid #2a2c44;border-radius:12px;padding:18px;margin:12px 0}
.row{display:flex;justify-content:space-between;align-items:center;border-bottom:1px dashed #2a2c44;padding:12px 0}
.row:last-child{border-bottom:none}
.tag{font-size:12px;padding:3px 9px;border-radius:6px}
.tag.live{background:#0f3d2e;color:#36d1dc}
.tag.off{background:#3d2020;color:#ffb454}
form.inline{display:inline}
input,select,button{background:#1a1c33;color:#e8e8f0;border:1px solid #2a2c44;border-radius:8px;padding:9px 12px;font-size:14px}
button{cursor:pointer;background:#7c5cff;border:none;color:#fff}
.hero{text-align:center;padding:60px 20px}
.hero h1{font-size:38px;background:linear-gradient(90deg,#7c5cff,#36d1dc);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}
.plan{background:#1a1c33;border:1px solid #2a2c44;border-radius:14px;padding:24px;text-align:center}
.plan.best{border-color:#7c5cff}
.price{font-size:30px;font-weight:800;margin:10px 0}
.price small{font-size:13px;color:#a6a6c8;font-weight:400}
table{width:100%;border-collapse:collapse;margin-top:10px}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid #2a2c44;font-size:14px}
th{color:#a6a6c8;font-weight:600}
.err{color:#ff8a8a;margin:10px 0;font-size:14px}
.muted{color:#a6a6c8;font-size:13px}
.acts form{display:inline-block;margin:0 4px 0 0}
.card.ok{border-color:#36d1dc}
pre.key{background:#0f1020;padding:10px 12px;border-radius:8px;color:#36d1dc;font-size:13px;word-break:break-all;margin-top:8px}

/* ===== 通用按钮增强 ===== */
.btn{display:inline-block;border-radius:10px;font-weight:600;transition:transform .15s ease,box-shadow .2s ease,opacity .2s;border:none;cursor:pointer}
.btn:hover{transform:translateY(-1px)}
.btn.tiny{background:linear-gradient(90deg,#7c5cff,#36d1dc);color:#fff;padding:6px 14px;border-radius:8px;font-size:13px;margin-left:14px}
.btn.big{padding:13px 30px;font-size:16px;border-radius:12px}
.btn.wide{display:block;width:100%;margin-top:18px;text-align:center}
.btn.grad-bg{background:linear-gradient(90deg,#7c5cff,#5b8cff 55%,#36d1dc);color:#fff;box-shadow:0 10px 28px -10px rgba(124,92,255,.9)}
.btn.grad-bg:hover{box-shadow:0 16px 34px -10px rgba(124,92,255,1)}
.btn.ghost{background:rgba(255,255,255,.06);color:#e8e8f0;border:1px solid rgba(255,255,255,.16)}
.btn.ghost:hover{background:rgba(255,255,255,.12)}

/* ===== 落地页 (body.lp) ===== */
html{scroll-behavior:smooth}
section[id]{scroll-margin-top:84px}
body.lp{background:radial-gradient(1100px 600px at 12% -8%,rgba(124,92,255,.20),transparent 60%),radial-gradient(900px 560px at 88% 4%,rgba(54,209,220,.14),transparent 60%),#0d0e1a}
body.lp::before{content:"";position:fixed;inset:0;pointer-events:none;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:26px 26px;mask-image:linear-gradient(to bottom,#000,transparent 70%);-webkit-mask-image:linear-gradient(to bottom,#000,transparent 70%);opacity:.5;z-index:0}
body.lp .container{position:relative;z-index:1;max-width:1140px;padding:0 24px}

.lp-hero{text-align:center;padding:104px 8px 72px}
.lp-badge{display:inline-block;font-size:13px;color:#c9c4ff;background:rgba(124,92,255,.12);border:1px solid rgba(124,92,255,.35);padding:6px 16px;border-radius:999px;margin-bottom:26px}
.lp-title{font-size:56px;line-height:1.15;font-weight:800;letter-spacing:-.5px;margin:0 0 18px}
.grad{background:linear-gradient(90deg,#7c5cff,#36d1dc);-webkit-background-clip:text;background-clip:text;color:transparent}
.lp-sub{color:#a6a6c8;font-size:17px;line-height:1.8;max-width:760px;margin:0 auto 34px}
.lp-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.lp-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:760px;margin:64px auto 0}
.lp-metrics div{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:18px 10px}
.lp-metrics b{display:block;font-size:26px;font-weight:800;color:#fff}
.lp-metrics span{font-size:13px;color:#a6a6c8}

.lp-section{padding:64px 0}
.lp-h2{font-size:34px;text-align:center;margin:0 0 10px;font-weight:800;letter-spacing:-.3px}
.lp-h2sub{text-align:center;color:#a6a6c8;margin:0 0 40px;font-size:15px}

.lp-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.lp-step{position:relative;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:24px 20px;transition:transform .2s,border-color .2s}
.lp-step:hover{transform:translateY(-4px);border-color:rgba(124,92,255,.5)}
.lp-step .n{display:inline-flex;width:32px;height:32px;align-items:center;justify-content:center;border-radius:9px;background:linear-gradient(90deg,#7c5cff,#36d1dc);color:#fff;font-weight:800;margin-bottom:12px}
.lp-step h3{margin:0 0 6px;font-size:17px}
.lp-step p{margin:0;color:#a6a6c8;font-size:14px;line-height:1.7}
.lp-step::after{content:"→";position:absolute;right:-15px;top:50%;transform:translateY(-50%);color:#4a4c6e;font-size:20px}
.lp-step:last-child::after{content:none}

.lp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.lp-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:26px 22px;transition:transform .2s,border-color .2s,box-shadow .2s}
.lp-card:hover{transform:translateY(-4px);border-color:rgba(124,92,255,.5);box-shadow:0 20px 40px -20px rgba(124,92,255,.6)}
.lp-card .ic{font-size:26px}
.lp-card h3{margin:12px 0 8px;font-size:18px}
.lp-card p{margin:0;color:#a6a6c8;font-size:14px;line-height:1.7}

.lp-compliance{display:flex;justify-content:center}
.lp-comp-box{max-width:760px;width:100%;background:linear-gradient(180deg,rgba(124,92,255,.10),rgba(255,255,255,.02));border:1px solid rgba(124,92,255,.35);border-radius:20px;padding:40px;text-align:center}
.lp-checks{list-style:none;padding:0;margin:26px auto 18px;max-width:520px;text-align:left}
.lp-checks li{position:relative;padding:10px 0 10px 32px;border-bottom:1px dashed rgba(255,255,255,.1);color:#dcdcec}
.lp-checks li:last-child{border-bottom:none}
.lp-checks li::before{content:"✓";position:absolute;left:0;top:10px;width:20px;height:20px;border-radius:50%;background:rgba(54,209,220,.16);color:#36d1dc;text-align:center;line-height:20px;font-size:12px;font-weight:700}
.lp-checks b{color:#fff}

.lp-plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start}
.lp-plan{position:relative;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:30px 24px;text-align:center;transition:transform .2s,border-color .2s}
.lp-plan:hover{transform:translateY(-4px)}
.lp-plan.best{border-color:#7c5cff;background:linear-gradient(180deg,rgba(124,92,255,.14),rgba(255,255,255,.02));box-shadow:0 24px 50px -24px rgba(124,92,255,.8)}
.lp-ribbon{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:linear-gradient(90deg,#7c5cff,#36d1dc);color:#fff;font-size:12px;font-weight:700;padding:4px 14px;border-radius:999px;white-space:nowrap}
.lp-plan h3{margin:0;font-size:20px}
.lp-price{font-size:40px;font-weight:800;margin:12px 0 2px}
.lp-price small{font-size:14px;color:#a6a6c8;font-weight:400}
.lp-plan ul{list-style:none;padding:0;margin:18px 0 0;text-align:left}
.lp-plan li{position:relative;padding:7px 0 7px 24px;color:#c9c9e0;font-size:14px}
.lp-plan li::before{content:"";position:absolute;left:4px;top:15px;width:6px;height:6px;border-radius:50%;background:#7c5cff}

.lp-faq{max-width:760px;margin:0 auto}
.lp-faq details{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:0 20px;margin-bottom:12px}
.lp-faq summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:600;font-size:16px;position:relative}
.lp-faq summary::-webkit-details-marker{display:none}
.lp-faq summary::after{content:"+";position:absolute;right:0;top:12px;color:#7c5cff;font-size:22px;font-weight:400;transition:transform .2s}
.lp-faq details[open] summary::after{transform:rotate(45deg)}
.lp-faq details p{margin:0;padding:0 0 18px;color:#a6a6c8;font-size:14px;line-height:1.8}

.lp-cta-band{text-align:center;margin:20px 0 80px;padding:60px 24px;border-radius:24px;background:linear-gradient(120deg,#7c5cff,#5b8cff 50%,#36d1dc);box-shadow:0 30px 60px -30px rgba(124,92,255,.9)}
.lp-cta-band h2{margin:0 0 10px;font-size:30px;color:#fff}
.lp-cta-band p{margin:0 0 26px;color:rgba(255,255,255,.9)}
.lp-cta-band .btn{background:#fff;color:#4b32c3}

/* ===== 响应式 ===== */
@media (max-width:980px){
  .lp-flow,.lp-grid,.lp-plans{grid-template-columns:repeat(2,1fr)}
  .lp-step::after{content:none}
  .lp-title{font-size:44px}
}
@media (max-width:640px){
  .lp-flow,.lp-grid,.lp-plans,.lp-metrics{grid-template-columns:1fr}
  .lp-hero{padding:72px 4px 52px}
  .lp-title{font-size:34px}
  .lp-h2{font-size:26px}
  .lp-comp-box{padding:28px 20px}
}


/* ===== 登录/认证页 (body.auth) ===== */
body.auth{background:radial-gradient(900px 600px at 18% -10%,rgba(124,92,255,.22),transparent 60%),radial-gradient(800px 560px at 85% 110%,rgba(54,209,220,.16),transparent 60%),#0d0e1a}
body.auth::before{content:"";position:fixed;inset:0;pointer-events:none;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:26px 26px;mask-image:linear-gradient(to bottom,#000,transparent 80%);-webkit-mask-image:linear-gradient(to bottom,#000,transparent 80%);opacity:.5;z-index:0}
body.auth .container{display:flex;align-items:center;justify-content:center;min-height:calc(100vh - 63px);padding:24px 20px;position:relative;z-index:1}
.auth-card{width:100%;max-width:420px;background:linear-gradient(170deg,rgba(26,28,51,.92),rgba(19,21,40,.96));border:1px solid rgba(124,92,255,.35);border-radius:22px;padding:42px 38px;box-shadow:0 30px 80px rgba(0,0,0,.5),0 0 60px rgba(124,92,255,.14);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);animation:authIn .55s cubic-bezier(.22,1,.36,1)}
@keyframes authIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
.auth-ico{width:64px;height:64px;margin:0 auto 20px;border-radius:18px;background:linear-gradient(135deg,#7c5cff,#36d1dc);display:flex;align-items:center;justify-content:center;font-size:30px;box-shadow:0 12px 30px rgba(124,92,255,.45)}
.auth-card h1{text-align:center;font-size:24px;margin-bottom:4px;letter-spacing:1px}
.auth-sub{text-align:center;color:#9aa0c3;font-size:13.5px;margin:0 0 28px}
.auth-err{background:rgba(255,90,90,.1);border:1px solid rgba(255,120,120,.35);color:#ff9a9a;font-size:13px;border-radius:10px;padding:10px 14px;margin-bottom:18px;text-align:center}
.auth-field{margin-bottom:18px}
.auth-field label{display:block;font-size:12.5px;color:#9aa0c3;margin-bottom:8px;font-weight:600;letter-spacing:.5px}
.inpwrap{position:relative}
.inpwrap .ic{position:absolute;left:14px;top:50%;transform:translateY(-50%);font-size:15px;opacity:.6;pointer-events:none}
.auth-field input{width:100%;padding:12px 14px 12px 42px;background:rgba(255,255,255,.04);border:1px solid #2a2c44;border-radius:12px;font-size:14.5px;color:#e8e8f0;outline:none;transition:.25s}
.auth-field input::placeholder{color:#5a5f85}
.auth-field input:focus{border-color:#7c5cff;box-shadow:0 0 0 3px rgba(124,92,255,.18);background:rgba(124,92,255,.06)}
.auth-btn{width:100%;padding:13px;border:none;border-radius:12px;background:linear-gradient(120deg,#7c5cff,#36d1dc);color:#fff;font-weight:800;font-size:15px;cursor:pointer;transition:.25s;box-shadow:0 8px 24px rgba(124,92,255,.4);letter-spacing:6px;margin-top:6px}
.auth-btn:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(124,92,255,.55)}
.auth-btn:active{transform:translateY(0)}
.auth-foot{text-align:center;color:#8b90b5;font-size:12.5px;margin-top:24px}
.auth-foot a{color:#36d1dc;text-decoration:none}
.auth-foot a:hover{text-decoration:underline}

.lp-cta-band .btn{margin:8px 10px 0}