:root{
  --bg:#0b0d17; --bg2:#12152a; --card:rgba(255,255,255,.04);
  --line:rgba(255,255,255,.09);
  --txt:#eef1ff; --muted:#9aa3c7; --dim:#6d76a0;
  --gold:#f5c96b; --gold2:#e0a84e;
  --violet:#8b7bff; --violet2:#5b4bd6; --cyan:#4fd1e0;
  --ok:#3ddc97; --bad:#ff6b7a;
  --radius:18px; --shadow:0 20px 60px rgba(0,0,0,.45);
  --grad:linear-gradient(135deg,#8b7bff 0%,#5b4bd6 55%,#4fd1e0 130%);
  --grad-gold:linear-gradient(135deg,#f5c96b,#e0a84e);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,sans-serif;
  background:radial-gradient(1200px 700px at 80% -10%,#241b4d 0%,transparent 55%),
             radial-gradient(900px 600px at 0% 10%,#10344a 0%,transparent 50%),
             var(--bg);
  color:var(--txt); line-height:1.6; -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
a{color:inherit;text-decoration:none}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;border:none;cursor:pointer;
  font-size:15px;font-weight:600;color:#12102b;background:var(--grad-gold);
  transition:transform .15s ease,box-shadow .2s ease;box-shadow:0 8px 24px rgba(245,201,107,.28);
}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(245,201,107,.4)}
.btn:active{transform:translateY(0)}
.btn.ghost{background:transparent;color:var(--txt);border:1px solid var(--line);box-shadow:none}
.btn.ghost:hover{border-color:var(--violet);background:rgba(139,123,255,.08)}
.btn.violet{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(91,75,214,.35)}
.btn.block{width:100%}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  background:rgba(139,123,255,.12);border:1px solid rgba(139,123,255,.25);color:#c3bcff;font-size:13px}

/* ---------- 顶部导航 ---------- */
header.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
  background:rgba(11,13,23,.72);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.5px}
.logo .orb{width:30px;height:30px;border-radius:50%;background:var(--grad);
  box-shadow:0 0 18px rgba(139,123,255,.7);display:grid;place-items:center;font-size:15px}
.nav-links{display:flex;align-items:center;gap:22px}
.nav-links a{color:var(--muted);font-size:14px}
.nav-links a:hover{color:var(--txt)}
@media(max-width:720px){.nav-links a.hide-m{display:none}}

/* ---------- Hero ---------- */
.hero{text-align:center;padding:70px 0 40px}
.hero h1{font-size:clamp(32px,6vw,58px);font-weight:800;line-height:1.15;letter-spacing:-.5px}
.hero h1 .g{background:var(--grad-gold);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.sub{color:var(--muted);font-size:clamp(15px,2.4vw,19px);max-width:640px;margin:18px auto 0}
.hero .cta{display:flex;gap:14px;justify-content:center;margin-top:30px;flex-wrap:wrap}
.trust{display:flex;gap:26px;justify-content:center;flex-wrap:wrap;margin-top:34px;color:var(--dim);font-size:13px}
.trust b{color:var(--gold);font-size:20px;display:block}
.trust div{text-align:center}

/* ---------- 通用卡片 ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;backdrop-filter:blur(8px)}
.section{padding:56px 0}
.section h2{font-size:clamp(24px,4vw,34px);text-align:center;font-weight:800}
.section .lead{text-align:center;color:var(--muted);margin:10px auto 34px;max-width:560px}

/* 测算类型网格 */
.grid{display:grid;gap:16px}
.grid.k3{grid-template-columns:repeat(3,1fr)}
.grid.k4{grid-template-columns:repeat(4,1fr)}
@media(max-width:820px){.grid.k3,.grid.k4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.grid.k3,.grid.k4{grid-template-columns:1fr}}
.kind{cursor:pointer;transition:transform .18s,border-color .18s,background .18s;position:relative;overflow:hidden}
.kind:hover{transform:translateY(-4px);border-color:rgba(139,123,255,.5);background:rgba(139,123,255,.06)}
.kind .ico{font-size:30px}
.kind h3{margin:12px 0 6px;font-size:18px}
.kind p{color:var(--muted);font-size:13px}
.kind.sel{border-color:var(--gold);background:rgba(245,201,107,.08)}

/* 评价 */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:820px){.reviews{grid-template-columns:1fr}}
.review .stars{color:var(--gold)}
.review p{margin:10px 0;font-size:14px}
.review .who{color:var(--dim);font-size:13px}

/* 价格 */
.price-box{max-width:420px;margin:0 auto;text-align:center;border:1px solid rgba(245,201,107,.35);
  background:linear-gradient(180deg,rgba(245,201,107,.08),rgba(245,201,107,.02))}
.price-box .num{font-size:56px;font-weight:800;background:var(--grad-gold);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.price-box ul{list-style:none;text-align:left;margin:18px auto;max-width:260px}
.price-box li{padding:7px 0;color:var(--muted);font-size:14px}
.price-box li::before{content:"✓";color:var(--ok);margin-right:10px;font-weight:700}

/* footer */
footer{border-top:1px solid var(--line);padding:30px 0;color:var(--dim);font-size:13px;text-align:center;margin-top:40px}

/* ---------- 弹窗 ---------- */
.modal{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;
  background:rgba(5,6,14,.7);backdrop-filter:blur(6px);padding:20px}
.modal.show{display:flex}
.modal .box{width:100%;max-width:400px;animation:pop .25s ease}
@keyframes pop{from{transform:translateY(14px) scale(.98);opacity:0}to{transform:none;opacity:1}}
.field{margin-top:14px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--txt);font-size:15px;outline:none;font-family:inherit}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--violet);background:rgba(139,123,255,.06)}
.tabs{display:flex;gap:8px;margin-bottom:6px}
.tabs button{flex:1;padding:10px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer;font-weight:600}
.tabs button.on{background:var(--grad);color:#fff;border-color:transparent}
.err{color:var(--bad);font-size:13px;margin-top:10px;min-height:18px}
.mut{color:var(--muted);font-size:13px}
.close{position:absolute;top:16px;right:18px;cursor:pointer;color:var(--muted);font-size:22px}

/* ---------- App 页面 ---------- */
.app-head{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;margin:26px 0}
.bal{display:flex;align-items:center;gap:14px}
.bal .amt{font-size:26px;font-weight:800;color:var(--gold)}
.result{white-space:normal;line-height:1.8}
.result h2,.result h3{margin:16px 0 8px;color:var(--gold)}
.result ul,.result ol{margin:8px 0 8px 22px}
.result blockquote{border-left:3px solid var(--gold);padding:8px 14px;background:rgba(245,201,107,.06);border-radius:8px;color:var(--muted);margin:10px 0}
.result strong{color:#fff}
.spinner{width:44px;height:44px;border-radius:50%;border:3px solid rgba(255,255,255,.15);border-top-color:var(--gold);animation:spin 1s linear infinite;margin:30px auto}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-txt{text-align:center;color:var(--muted)}
.hist-item{border:1px solid var(--line);border-radius:12px;padding:14px;margin-top:10px;cursor:pointer}
.hist-item:hover{border-color:var(--violet)}
.hist-item .meta{display:flex;justify-content:space-between;color:var(--dim);font-size:13px}
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);background:#1a1e38;border:1px solid var(--line);
  padding:12px 20px;border-radius:12px;z-index:200;box-shadow:var(--shadow);opacity:0;transition:opacity .2s,transform .2s}
.toast.show{opacity:1;transform:translateX(-50%) translateY(-4px)}

/* 表格（后台） */
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:9px 10px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
th{color:var(--muted);font-weight:600;position:sticky;top:0;background:var(--bg2)}
.table-wrap{overflow:auto;max-height:70vh;border:1px solid var(--line);border-radius:12px}
.badge{padding:2px 9px;border-radius:999px;font-size:12px}
.badge.ok{background:rgba(61,220,151,.15);color:var(--ok)}
.badge.bad{background:rgba(255,107,122,.15);color:var(--bad)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:20px 0}
@media(max-width:720px){.stat-grid{grid-template-columns:repeat(2,1fr)}}
.stat{padding:18px}.stat .v{font-size:28px;font-weight:800;color:var(--gold)}.stat .l{color:var(--muted);font-size:13px}
.admin-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}
.admin-tabs button{padding:9px 16px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer}
.admin-tabs button.on{background:var(--grad);color:#fff;border-color:transparent}

/* 首页标语行 + 付费公告 */
.tagline-row{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:22px}
.notice{max-width:680px;margin:26px auto 0;padding:14px 18px;border-radius:14px;font-size:14px;line-height:1.7;
  color:#e7d9b8;background:linear-gradient(180deg,rgba(245,201,107,.10),rgba(245,201,107,.03));
  border:1px solid rgba(245,201,107,.28);text-align:left}
.notice b{color:#fff}
/* App 顶部公告条 */
.announce{background:linear-gradient(90deg,rgba(139,123,255,.16),rgba(79,209,224,.12));
  border-bottom:1px solid var(--line);color:#d7d2ff;font-size:13px;padding:9px 0;text-align:center}
.announce b{color:var(--gold)}
.free-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  background:rgba(61,220,151,.14);border:1px solid rgba(61,220,151,.3);color:var(--ok);font-size:13px;font-weight:600}

/* 加大的登录框 */
.auth-box{max-width:440px !important;padding:34px 32px}
.auth-brand{display:flex;align-items:center;justify-content:center;gap:10px;font-size:20px;margin-bottom:20px}
.auth-brand .orb{width:32px;height:32px;border-radius:50%;background:var(--grad);display:grid;place-items:center;box-shadow:0 0 18px rgba(139,123,255,.7)}
.auth-box .tabs button{padding:13px;font-size:16px}
.auth-box .field input{padding:14px 16px;font-size:16px}
.auth-box .btn{padding:15px;font-size:17px}

/* 模型选择卡片 */
.model-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:8px 0 4px}
@media(max-width:720px){.model-grid{grid-template-columns:1fr}}
.model-card{cursor:pointer;border:1.5px solid var(--line);border-radius:16px;padding:18px;transition:all .18s;position:relative;background:var(--card)}
.model-card:hover{transform:translateY(-3px);border-color:rgba(139,123,255,.5)}
.model-card.sel{border-color:var(--gold);background:rgba(245,201,107,.08)}
.model-card .mname{font-size:17px;font-weight:700}
.model-card .mdesc{color:var(--muted);font-size:13px;margin:6px 0 10px}
.model-card .mprice{font-size:22px;font-weight:800;color:var(--gold)}
.model-card .mtag{display:inline-block;margin-left:6px;font-size:12px;color:var(--ok);background:rgba(61,220,151,.14);padding:2px 8px;border-radius:999px;vertical-align:middle}
.model-card .mfree{position:absolute;top:12px;right:12px;font-size:11px;color:var(--ok)}
.zodiac-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}
@media(max-width:520px){.zodiac-grid{grid-template-columns:repeat(3,1fr)}}
.zodiac-grid button{padding:10px 4px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer;font-size:14px}
.zodiac-grid button.on{background:var(--grad);color:#fff;border-color:transparent}

/* ---- 移动端修复 ---- */
@media(max-width:640px){
  .container{padding:0 14px}
  .nav-in{height:56px}
  .logo{font-size:16px}.logo .orb{width:26px;height:26px}
  .nav-links{gap:12px}.nav-links a{font-size:13px}
  .bal .amt{font-size:20px}
  .hero{padding:40px 0 24px}
  .cta{flex-direction:column}.cta .btn{width:100%}
  .btn{padding:12px 18px;font-size:14px}
  .app-head{margin:18px 0}.app-head h1{font-size:21px}
  .stat-grid{gap:10px}.stat{padding:14px}.stat .v{font-size:22px}
  .modal{padding:12px}.modal .box{max-width:100%}
  .section{padding:38px 0}
  .result{font-size:15px}
  th,td{padding:7px 8px;font-size:12px}
  .notice{font-size:13px;padding:12px 14px}
}