:root{
  --bg:#0d1017; --bg2:#141a24; --card:#181f2b; --line:#26303f;
  --txt:#e8edf5; --mut:#93a1b5; --acc:#f5c518; --acc2:#4f8cff; --ok:#2ecc71; --warn:#ffb020;
  --radius:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:radial-gradient(1200px 600px at 50% -10%,#1b2740 0%,var(--bg) 55%) fixed;
  color:var(--txt); font:16px/1.65 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:860px;margin:0 auto;padding:0 18px}
a{color:var(--acc2)}

/* hero */
.hero{padding:44px 0 8px;text-align:center}
.brand{font-size:21px;color:var(--acc);letter-spacing:.5px;font-weight:700;margin-bottom:18px}
.brand .logo{margin-right:5px;font-size:23px}
.brand .sub{color:var(--mut);font-weight:400;border-left:1px solid var(--line);padding-left:8px;margin-left:6px}
.hero h1{font-size:32px;line-height:1.4;margin:0 0 12px;font-weight:800;letter-spacing:.3px}
.lead{color:var(--mut);margin:0 0 20px;font-size:15px}
.badges{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:6px}
.pill{font-size:12.5px;color:var(--mut);background:var(--card);border:1px solid var(--line);padding:5px 11px;border-radius:999px}
.pill.ok{color:#bff3d3;border-color:#255740;background:#12251b}
.pill.warn{color:#ffd98a;background:#241d0e;border-color:#4a3a12}

/* card */
.card{background:linear-gradient(180deg,var(--card),var(--bg2));border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin:18px 0;box-shadow:0 10px 40px -20px #000}
.card h3{margin:0 0 10px;font-size:16px}
.note ul{margin:0;padding-left:20px;color:var(--mut)}
.note li{margin:6px 0}
.note b{color:var(--txt)}

/* step + capital */
.step{font-size:14px;font-weight:700;color:var(--txt);margin:6px 0 12px}
.step .req{font-size:11px;color:#1a1600;background:var(--acc);padding:2px 7px;border-radius:6px;margin-left:6px;font-weight:800}
.capital-block{display:flex;gap:18px;align-items:center;background:#101724;border:1px solid #2f4a72;border-radius:13px;padding:14px 16px}
.cap-input{display:flex;align-items:center;gap:6px;flex:0 0 auto;background:#0b111b;border:1px solid var(--line);border-radius:10px;padding:8px 12px}
.cap-input .yuan{color:var(--acc);font-size:20px;font-weight:800}
.cap-input input{border:0;background:transparent;color:var(--txt);font-size:22px;font-weight:800;width:170px;outline:none}
.cap-hint{color:var(--mut);font-size:12.5px;line-height:1.5}
.cap-hint b{color:var(--acc)}
#capital:invalid{box-shadow:none}

/* result buttons */
.mini.primary{background:linear-gradient(180deg,#ffd94a,#eab308);color:#1a1600;border:0;font-weight:800}
.mini.primary:hover{filter:brightness(1.06);color:#1a1600}
.share-out{margin:-2px 0 12px;background:#101724;border:1px solid #2f4a72;border-radius:10px;padding:10px 12px;font-size:13px;color:var(--txt);display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.share-out code{background:#0b111b;padding:6px 10px;border-radius:8px;word-break:break-all;flex:1;min-width:200px;font-size:12.5px;color:#bfe1ff}

/* drop */
.drop{border:2px dashed #33415a;border-radius:14px;padding:34px 18px;text-align:center;cursor:pointer;transition:.18s;background:#121824}
.drop:hover,.drop.hot{border-color:var(--acc);background:#16202e}
.drop-ico{font-size:38px;line-height:1;margin-bottom:8px}
.drop-main{font-size:16px;font-weight:600}
.drop-main u{color:var(--acc);text-decoration:none;border-bottom:1px solid var(--acc)}
.drop-hint{color:var(--mut);font-size:12.5px;margin-top:8px}
.file-name{margin-top:12px;color:var(--ok);font-size:13.5px;font-weight:600;word-break:break-all}

/* adv */
.adv{margin:16px 0 4px}
.adv summary{cursor:pointer;color:var(--mut);font-size:14px;padding:6px 0}
.adv summary:hover{color:var(--txt)}
.row{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:9px 0;border-top:1px solid var(--line);font-size:14px}
.row span{color:var(--mut);flex:0 0 auto}
.row input,.row select{background:#0f151f;border:1px solid var(--line);color:var(--txt);border-radius:9px;padding:8px 10px;font-size:13.5px;max-width:62%}
.row input[type=checkbox]{width:20px;height:20px;accent-color:var(--acc);}
.row select{width:62%}

/* button */
.go{width:100%;margin-top:18px;padding:15px;border:0;border-radius:12px;background:linear-gradient(180deg,#ffd94a,#eab308);color:#1a1600;font-size:17px;font-weight:800;cursor:pointer;transition:.15s;letter-spacing:.5px}
.go:hover:not(:disabled){filter:brightness(1.06);transform:translateY(-1px)}
.go:disabled{opacity:.45;cursor:not-allowed;filter:grayscale(.4)}

/* status */
.status{margin-top:14px;font-size:14px;color:var(--mut);min-height:0;white-space:pre-wrap;text-align:center}
.status .err{color:#ff8a8a}
.bar{height:6px;background:#0f151f;border-radius:99px;overflow:hidden;margin-top:12px;display:none}
.bar.on{display:block}
.bar i{display:block;height:100%;width:30%;background:linear-gradient(90deg,var(--acc2),var(--acc));animation:sl 1.1s ease-in-out infinite}
@keyframes sl{0%{margin-left:-30%}100%{margin-left:100%}}

/* result */
.result{padding:14px}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.tb-title{font-weight:700}
.tb-actions{display:flex;gap:8px;flex-wrap:wrap}
.mini{background:#0f151f;border:1px solid var(--line);color:var(--txt);padding:8px 13px;border-radius:9px;font-size:13.5px;cursor:pointer}
.mini:hover{border-color:var(--acc);color:var(--acc)}
iframe{width:100%;height:80vh;border:1px solid var(--line);border-radius:12px;background:#fff}

/* foot */
.foot{color:#6b7888;font-size:12.5px;text-align:center;padding:22px 18px 44px}
.foot b{color:#93a1b5}

/* account page */
.tabs{display:flex;gap:8px;margin-bottom:14px}
.tab{flex:1;padding:10px;border-radius:10px;border:1px solid var(--line);background:#0f151f;color:var(--mut);cursor:pointer;font-size:15px;font-weight:600}
.tab.on{background:#16202e;color:var(--acc);border-color:var(--acc)}
.fld{display:block;margin:12px 0}
.fld>span{display:block;color:var(--mut);font-size:13px;margin-bottom:6px}
.fld input{width:100%;background:#0f151f;border:1px solid var(--line);color:var(--txt);border-radius:10px;padding:12px;font-size:16px}
.code-row{display:flex;gap:8px}.code-row input{flex:1}
.seg{display:flex;gap:16px;color:var(--mut);font-size:14px;margin:8px 0}
.seg label{display:flex;align-items:center;gap:6px;cursor:pointer}
.hint{color:var(--mut);font-size:12.5px;margin-top:10px}
.acct-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.acct-phone{font-size:22px;font-weight:800}
.acct-sub{color:var(--mut);font-size:14px;margin-top:4px}.acct-sub b{color:var(--acc)}
.acct-actions{display:flex;gap:8px}
.grow{width:100%;border-collapse:collapse;margin-top:10px;font-size:14px}
.grow th,.grow td{padding:9px 8px;border-bottom:1px solid var(--line);text-align:left}
.grow th{color:var(--mut);font-weight:600;font-size:13px}
.up{color:#2ecc71;font-weight:700}.down{color:#ff7a7a;font-weight:700}.flat{color:var(--mut)}
.growth-sum{color:var(--mut);font-size:14px;margin-bottom:4px}
.muted{color:var(--mut);font-size:14px}
.navline{text-align:center;margin-top:10px;font-size:14px}

@media (max-width:600px){
  .hero{padding:30px 0 4px}
  .hero h1{font-size:26px}
  .brand{font-size:18px}
  .card{padding:16px}
  .capital-block{flex-direction:column;align-items:stretch;gap:10px}
  .cap-input input{width:100%}
  .row{flex-direction:column;align-items:stretch;gap:6px}
  .row input,.row select{max-width:100%;width:100%}
  iframe{height:74vh}
}

/* 购买 */
.plans{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.plan{border:1px solid var(--line);border-radius:12px;padding:16px;text-align:center;background:#101724}
.plan.hl{border-color:var(--acc);box-shadow:0 0 0 1px var(--acc) inset}
.plan .pn{font-weight:700}
.plan .pp{font-size:26px;font-weight:900;color:var(--acc);margin:6px 0}
.plan .pd{color:var(--mut);font-size:13px;margin-bottom:12px}
.qr-wrap{display:flex;justify-content:center;margin:16px auto;background:#fff;border-radius:12px;padding:14px;width:fit-content}
.pay-status{text-align:center;color:var(--mut);font-size:14px}
.pay-status.err{color:#ff8a8a}.pay-status b{color:var(--txt)}
@media (max-width:600px){.plans{grid-template-columns:1fr}}

/* 首页登录入口 */
.topbar-login{position:fixed;top:14px;right:16px;z-index:50;background:linear-gradient(180deg,#ffd94a,#eab308);
  color:#1a1600;font-weight:800;font-size:14px;padding:9px 18px;border-radius:999px;text-decoration:none;
  box-shadow:0 6px 18px -6px rgba(234,179,8,.7)}
.topbar-login:hover{filter:brightness(1.06)}
.cta-login{display:inline-block;margin-top:4px;background:linear-gradient(180deg,#ffd94a,#eab308);color:#1a1600;
  font-weight:800;font-size:15px;padding:11px 24px;border-radius:10px;text-decoration:none}
.cta-login:hover{filter:brightness(1.06)}

/* 账户页 */
.card.auth{max-width:470px;margin-left:auto;margin-right:auto}
.status{text-align:center;font-size:14px;min-height:20px;margin-top:12px}
.status-err{color:#ff8a8a}
.status-ok{color:#2ecc71}

/* 解锁支付弹窗 */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.62);z-index:100;align-items:center;justify-content:center;padding:18px}
.modal-box{position:relative;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;max-width:360px;width:100%;text-align:center}
.modal-x{position:absolute;top:10px;right:12px;background:none;border:0;color:var(--mut);font-size:18px;cursor:pointer}
.modal-sub{color:var(--mut);font-size:13px;margin-bottom:6px}
.modal-sub b{color:var(--acc)}
.modal-hint{color:var(--mut);font-size:12.5px;margin-top:12px}

/* 反馈 */
.fb-q{color:var(--mut);font-size:14px;margin-bottom:8px}
.fb-rate{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.rate{border:1px solid var(--line);background:#0f151f;color:var(--txt);padding:9px 16px;border-radius:10px;cursor:pointer;font-size:14px}
.rate.sel{border-color:var(--acc);color:var(--acc);background:#16202e}
textarea#fb-text{width:100%;background:#0f151f;border:1px solid var(--line);color:var(--txt);border-radius:10px;padding:10px;font-size:14px;font-family:inherit;margin-bottom:12px}
.rate-bar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:10px;font-size:13.5px;color:var(--mut)}

/* 页脚备案 */
.beian{color:#6b7888;font-size:12px;margin-top:8px;line-height:1.7}
.beian a{color:#7f93a8}

/* 退款提示 */
.refund{background:#241d0e;border:1px solid #4a3a12;color:#ffd98a;font-size:12.5px;border-radius:10px;padding:10px 12px;margin-top:12px;text-align:center;line-height:1.6}

/* 对抗赛 */
.fight-sub{color:var(--mut);font-size:13.5px;line-height:1.7;margin-bottom:14px}
.fight-sub b{color:var(--acc)}
.fight-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px}
.fs{background:#101724;border:1px solid var(--line);border-radius:12px;padding:12px;text-align:center}
.fs b{display:block;font-size:24px;color:var(--acc)}
.fs span{color:var(--mut);font-size:12px}

/* 首页小黑背景 + 钩子 */
.hero{position:relative;overflow:hidden}
.hero .wrap{position:relative;z-index:1}
.xh-bg{position:absolute;top:-4px;left:50%;transform:translateX(-50%);width:440px;height:470px;
  background:url(/img/xiaohei-grin.svg) no-repeat center/contain;
  opacity:.18;filter:saturate(1.12);pointer-events:none;z-index:0}
.hook{font-size:17.5px;font-weight:800;color:#ffd94a;margin:16px 0 8px;line-height:1.65;
  text-shadow:0 2px 14px rgba(0,0,0,.45)}
@media (max-width:600px){.xh-bg{width:260px;height:280px;top:-6px;right:-50px;opacity:.2}.hook{font-size:15.5px}}

/* 报告底部下载区 */
.report-foot{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);text-align:center}
.report-foot .rf-tip{color:var(--mut);font-size:13px;margin-bottom:10px}
.report-foot .mini{font-size:14px;padding:9px 18px}