:root{
  --bg:#070b12;
  --panel:#0d1624;
  --panel-2:#101c2d;
  --line:rgba(148,163,184,.16);
  --line-strong:rgba(148,163,184,.32);
  --text:#e8eefb;
  --muted:#8fa1b8;
  --amber:#f6b73c;
  --amber-2:#ffd98a;
  --cyan:#3dd6d0;
  --bad:#f87171;
  --ok:#4ade80;
  --radius:18px;
  --mono:"SFMono-Regular",ui-monospace,Consolas,"Liberation Mono",Menlo,monospace;
  --sans:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
/* 必须放在组件样式之前：.field{display:flex} 会盖掉 UA 的 [hidden] */
[hidden]{display:none !important}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;min-height:100vh;background:var(--bg);color:var(--text);
  font-family:var(--sans);line-height:1.6;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

/* ---------- 背景 ---------- */
.bg-grid{
  position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(148,163,184,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(148,163,184,.05) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%);
}
.glow{position:fixed;border-radius:50%;filter:blur(90px);pointer-events:none;z-index:0}
.glow-a{width:520px;height:520px;left:-170px;top:-230px;background:radial-gradient(circle,rgba(246,183,60,.28),transparent 65%)}
.glow-b{width:520px;height:520px;right:-190px;top:200px;background:radial-gradient(circle,rgba(61,214,208,.16),transparent 65%)}

/* ---------- 布局 ---------- */
.shell{position:relative;z-index:1;max-width:760px;margin:0 auto;padding:56px 20px 64px}

.hero{animation:rise .55s ease both}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;margin:0;font-size:12px;letter-spacing:.18em;
  color:var(--amber);text-transform:uppercase;font-weight:600;
}
.dot{width:7px;height:7px;border-radius:50%;background:var(--amber);box-shadow:0 0 12px var(--amber);animation:pulse 2.4s infinite}

.callsign{
  font-family:var(--mono);font-size:clamp(2.4rem,7.5vw,3.7rem);line-height:1.1;
  letter-spacing:.06em;margin:.12em 0 .28em;color:var(--amber);
  text-shadow:0 0 30px rgba(246,183,60,.35);
}
.lede{margin:0;max-width:60ch;color:#b9c6d9;font-size:15.5px}

.hero-top{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.lang-btn{
  padding:6px 14px;border-radius:999px;border:1px solid var(--line-strong);
  background:rgba(148,163,184,.06);color:var(--text);font:inherit;font-size:13px;font-weight:600;
  cursor:pointer;transition:.16s;
}
.lang-btn:hover{background:rgba(148,163,184,.14);border-color:rgba(148,163,184,.55)}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;list-style:none;padding:0;margin:34px 0 20px}
.steps li{
  display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-radius:14px;
  background:rgba(13,22,36,.5);border:1px solid var(--line);
}
.steps i{font-family:var(--mono);font-style:normal;font-size:11.5px;color:var(--amber);padding-top:3px}
.steps b{display:block;font-size:14px;line-height:1.35}
.steps span{font-size:12.5px;color:var(--muted)}

/* ---------- 卡片面板 ---------- */
.panel{
  background:linear-gradient(180deg,rgba(16,28,45,.94),rgba(9,15,25,.94));
  border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  box-shadow:0 30px 80px -50px #000;
  animation:rise .6s .05s ease both;
}

.field{margin-bottom:18px;display:flex;flex-direction:column;gap:7px}
label{font-size:13px;color:#cfd9ea;font-weight:600;letter-spacing:.01em}
label em{font-style:normal;font-size:11px;color:var(--muted);font-weight:500;margin-left:6px}

input[type=text],input[type=email],textarea{
  width:100%;background:rgba(7,11,18,.65);border:1px solid var(--line);border-radius:12px;
  padding:12px 14px;color:var(--text);font:inherit;font-size:15px;
  transition:border-color .18s,box-shadow .18s,background .18s;
}
input[type=text]:focus,input[type=email]:focus,textarea:focus{
  outline:none;border-color:rgba(246,183,60,.7);
  box-shadow:0 0 0 3px rgba(246,183,60,.14);background:rgba(7,11,18,.9);
}
input.is-invalid,textarea.is-invalid{border-color:rgba(248,113,113,.75);box-shadow:0 0 0 3px rgba(248,113,113,.12)}
::placeholder{color:#5f7189}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}

.call-input{
  font-family:var(--mono);font-size:19px !important;letter-spacing:.12em;
  text-transform:uppercase;font-weight:600;
}
.input-group{display:flex;gap:8px}
.input-group .call-input{flex:1;min-width:0}

/* ---------- 按钮 ---------- */
.btn-ghost{
  padding:11px 16px;border-radius:12px;border:1px solid var(--line-strong);
  background:rgba(148,163,184,.06);color:var(--text);font:inherit;font-size:14px;font-weight:600;
  cursor:pointer;white-space:nowrap;transition:.16s;
}
.btn-ghost:hover{background:rgba(148,163,184,.14);border-color:rgba(148,163,184,.5)}
.btn-ghost:disabled{opacity:.5;cursor:progress}

.btn-primary{
  width:100%;display:flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 20px;border:0;border-radius:14px;
  background:linear-gradient(135deg,var(--amber),#ffcf6b);color:#141a24;
  font:inherit;font-weight:800;font-size:16px;letter-spacing:.02em;cursor:pointer;
  box-shadow:0 14px 30px -14px rgba(246,183,60,.75);
  transition:transform .16s,box-shadow .16s,filter .16s;
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.04)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:disabled{opacity:.55;cursor:progress;transform:none}

/* ---------- 勾选 ---------- */
.check{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:13.5px;color:#c3cfe1;margin-bottom:14px;cursor:pointer}
.check input{width:18px;height:18px;margin:2px 0 0;accent-color:var(--amber);flex:none}
.check small{color:var(--muted)}

.hp{position:absolute !important;left:-9999px !important;width:1px;height:1px;opacity:0}

/* ---------- 提示 ---------- */
.hint{font-size:12.5px;color:var(--muted);min-height:18px;margin:0}
.hint.ok{color:var(--ok)}
.hint.warn{color:#f0b46b}
.hint.loading::before{
  content:"";display:inline-block;width:8px;height:8px;border-radius:50%;
  background:var(--amber);margin-right:7px;animation:pulse 1s infinite;
}
.status{font-size:13.5px;margin:12px 0 0;min-height:18px;color:var(--bad)}

/* ---------- 成功面板 ---------- */
.done{text-align:center;padding:38px 26px}
.done-mark{
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;margin:0 auto 16px;
  background:rgba(74,222,128,.12);color:var(--ok);font-size:26px;border:1px solid rgba(74,222,128,.3);
}
.done h2{margin:0 0 6px;font-size:22px}
.done p{color:var(--muted);margin:4px 0}
.done b#refId{font-family:var(--mono);color:var(--amber);letter-spacing:.06em}
.done-note{max-width:44ch;margin:10px auto 20px !important}

footer{margin-top:30px;font-size:12.5px;color:#6b7c93;text-align:center}
footer p{margin:2px 0}
footer .fine{font-size:11.5px;opacity:.7}

/* ---------- 动画 ---------- */
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes pulse{0%,100%{opacity:.25}50%{opacity:1}}

@media (max-width:640px){
  .shell{padding:36px 16px 48px}
  .steps{grid-template-columns:1fr;gap:8px}
  .grid-2{grid-template-columns:1fr}
  .panel{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}

/* ---------- 后台管理页 ---------- */
.admin-shell{max-width:1080px;margin:0 auto;padding:40px 20px 60px;position:relative;z-index:1}
.admin-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:20px}
.admin-head h1{font-size:20px;margin:0}
.admin-tools{display:flex;gap:8px;flex-wrap:wrap}
.admin-tools input{max-width:260px}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{color:var(--muted);font-weight:600;font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;white-space:nowrap}
td.mono{font-family:var(--mono);white-space:nowrap}
tr:hover td{background:rgba(148,163,184,.04)}
.tag{display:inline-block;padding:1px 8px;border-radius:999px;font-size:11px;border:1px solid var(--line-strong)}
.tag.ok{color:var(--ok);border-color:rgba(74,222,128,.4)}
.tag.wait{color:#f0b46b;border-color:rgba(240,180,107,.4)}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px}