:root {
  --u-bg: #0b101f;
  --u-surface: #131a31;
  --u-surface-2: #10162b;
  --u-border: #293453;
  --u-text: #ebefff;
  --u-muted: #93a2c7;
  --u-accent: #33d4ff;
  --u-accent-2: #ffb347;
  --u-accent-hover: #1ec5f2;
}

body {
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  background:
    radial-gradient(900px 500px at -10% -10%, rgba(49, 184, 255, 0.2), transparent 60%),
    radial-gradient(700px 360px at 120% 8%, rgba(255, 179, 71, 0.2), transparent 60%),
    var(--u-bg);
  color: var(--u-text);
}

.user-shell {
  max-width: 980px;
  margin: 28px auto 48px;
  padding: 0 16px;
}

.user-header {
  background: linear-gradient(150deg, rgba(18, 29, 58, 0.96), rgba(10, 15, 30, 0.94));
  border: 1px solid var(--u-border);
  border-radius: 18px;
  padding: 22px 20px 20px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.26);
}

.brand-top {
  margin: 0;
  font-size: 28px;
  font-weight: 900;
  letter-spacing: 1px;
}

.brand-sub {
  margin: 6px 0 16px;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--u-muted);
}

.top-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.top-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 110px;
  border-radius: 999px;
  border: 1px solid var(--u-border);
  color: var(--u-muted);
  text-decoration: none;
  font-size: 14px;
  padding: 8px 14px;
  background: rgba(18, 26, 51, 0.95);
}

.top-tab.active {
  color: #062136;
  border-color: transparent;
  background: linear-gradient(135deg, var(--u-accent), #b2f5ff);
  font-weight: 700;
}

.top-tab.inactive {
  cursor: default;
}

.steps-panel {
  margin-top: 14px;
  background: linear-gradient(180deg, rgba(15, 23, 45, 0.95), rgba(12, 18, 36, 0.95));
  border: 1px solid var(--u-border);
  border-radius: 16px;
  padding: 14px;
  display: grid;
  gap: 10px;
}

.steps-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.step-chip {
  border: 1px solid #33446e;
  border-radius: 10px;
  padding: 8px 8px 10px;
  text-align: center;
  background: rgba(17, 25, 49, 0.92);
}

.step-no {
  font-size: 12px;
  opacity: 0.85;
}

.step-name {
  margin-top: 4px;
  font-size: 13px;
}

.step-chip.current {
  border-color: #45defd;
  box-shadow: inset 0 0 0 1px rgba(69, 222, 253, 0.5);
}

.step-chip.done {
  border-color: #64d19d;
  background: rgba(24, 56, 49, 0.82);
}

.user-card {
  margin-top: 14px;
  border-radius: 16px;
  border: 1px solid var(--u-border);
  background: linear-gradient(180deg, rgba(18, 27, 52, 0.95), rgba(13, 19, 38, 0.95));
  padding: 16px;
}

.user-card h3 {
  margin: 0;
  font-size: 20px;
}

.hint {
  margin: 8px 0 14px;
  color: var(--u-muted);
  font-size: 13px;
}

.input-label {
  display: block;
  margin: 0 0 6px;
  font-size: 13px;
  color: #cfd9f3;
}

.dark-input {
  width: 100%;
  border: 1px solid #33446f;
  border-radius: 10px;
  background: rgba(13, 19, 36, 0.95);
  color: var(--u-text);
  min-height: 46px;
  padding: 10px 12px;
  outline: none;
  font-size: 14px;
}

.dark-input:focus {
  border-color: #45defd;
  box-shadow: 0 0 0 3px rgba(69, 222, 253, 0.15);
}

.dark-input::placeholder {
  color: #7284ae;
}

.dark-textarea {
  min-height: 116px;
  resize: vertical;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.btn-main {
  border: none;
  border-radius: 10px;
  height: 42px;
  padding: 0 18px;
  color: #062136;
  font-weight: 800;
  background: linear-gradient(135deg, var(--u-accent), #b2f5ff);
  cursor: pointer;
}

.btn-main:hover {
  background: linear-gradient(135deg, var(--u-accent-hover), #9beeff);
}

.btn-ghost {
  border: 1px solid #344873;
  border-radius: 10px;
  height: 42px;
  padding: 0 16px;
  color: #c9d6f7;
  background: rgba(12, 20, 39, 0.9);
  cursor: pointer;
}

.btn-main:disabled,
.btn-ghost:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.status {
  margin-top: 12px;
}

.status.ok {
  background: rgba(37, 94, 71, 0.58);
  color: #96ebc1;
}

.status.err {
  background: rgba(95, 36, 31, 0.62);
  color: #ffc5bc;
}

.howto {
  margin: 12px 0 0;
  padding: 12px;
  border-radius: 12px;
  border: 1px dashed #39528a;
  background: rgba(12, 20, 40, 0.92);
}

.howto h4 {
  margin: 0 0 8px;
  font-size: 14px;
  color: #cfe8ff;
}

.howto ol {
  margin: 0;
  padding-left: 20px;
  color: #afc2e8;
  font-size: 13px;
}

.howto a {
  color: #79deff;
}

.confirm-panel {
  border: 1px solid #33466f;
  border-radius: 12px;
  padding: 12px;
  background: rgba(9, 15, 30, 0.9);
}

.confirm-line {
  display: flex;
  gap: 8px;
  align-items: baseline;
  margin: 6px 0;
}

.confirm-label {
  color: #9eb0d7;
  font-size: 13px;
  min-width: 88px;
}

.confirm-value {
  word-break: break-all;
  font-size: 14px;
}

.warn-note {
  margin-top: 10px;
  color: #ffc995;
  font-size: 13px;
}

.result-title {
  margin: 0;
  font-size: 22px;
}

.result-sub {
  margin-top: 8px;
  color: #b2c2e6;
}

.raw-box {
  margin-top: 12px;
  background: #0a1020;
  border: 1px solid #2a3d67;
  border-radius: 10px;
  padding: 10px;
  overflow: auto;
}

.mono {
  margin: 0;
  color: #c8e7ff;
  white-space: pre-wrap;
}

.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(3, 5, 11, 0.64);
  display: grid;
  place-items: center;
  padding: 16px;
}

.modal-card {
  width: 100%;
  max-width: 420px;
  border-radius: 14px;
  border: 1px solid #395083;
  background: linear-gradient(180deg, #162348, #101935);
  padding: 16px;
}

.modal-card h4 {
  margin: 0;
  font-size: 18px;
}

.modal-card p {
  margin: 10px 0 0;
  color: #b0c0e4;
  font-size: 14px;
}

@media (max-width: 760px) {
  .steps-track {
    grid-template-columns: 1fr 1fr;
  }

  .brand-top {
    font-size: 24px;
  }
}