* { margin: 0; padding: 0; box-sizing: border-box; }

[hidden] { display: none !important; }

:root {
  --bg-1: #060a13;
  --bg-2: #0d1424;
  --panel: rgba(18, 27, 50, 0.72);
  --panel-border: rgba(90, 140, 255, 0.25);
  --accent: #4fd1ff;
  --accent-2: #8a6cff;
  --text: #e8eefb;
  --text-dim: #93a4c4;
  --danger: #ff5c6c;
  --success: #2ee6a8;
  --input-bg: rgba(8, 14, 28, 0.75);
  --input-border: rgba(120, 160, 255, 0.22);
}

html, body { min-height: 100vh; }

body {
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 20% -10%, rgba(70, 120, 255, 0.16), transparent 60%),
    radial-gradient(1000px 500px at 90% 110%, rgba(138, 108, 255, 0.14), transparent 60%),
    linear-gradient(160deg, var(--bg-1), var(--bg-2));
  background-attachment: fixed;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

/* ---------- 背景装饰 ---------- */

.bg-decor {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.4;
}

.blob-1 {
  width: 480px;
  height: 480px;
  background: #2b5cff;
  top: -140px;
  left: -120px;
  animation: drift1 16s ease-in-out infinite alternate;
}

.blob-2 {
  width: 420px;
  height: 420px;
  background: #7c3aed;
  bottom: -160px;
  right: -100px;
  animation: drift2 20s ease-in-out infinite alternate;
}

.blob-3 {
  width: 300px;
  height: 300px;
  background: #0fb7c9;
  top: 55%;
  left: 62%;
  opacity: 0.22;
  animation: drift1 24s ease-in-out infinite alternate-reverse;
}

@keyframes drift1 {
  to { transform: translate(70px, 50px) scale(1.15); }
}

@keyframes drift2 {
  to { transform: translate(-60px, -40px) scale(1.1); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(120, 160, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 160, 255, 0.06) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

/* ---------- 页面骨架 ---------- */

.page {
  width: 100%;
  max-width: 460px;
  text-align: center;
}

.page.wide {
  max-width: 980px;
}

.header { margin-bottom: 26px; animation: fade-up 0.7s ease; }

.badge {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--accent);
  border: 1px solid rgba(79, 209, 255, 0.4);
  border-radius: 999px;
  padding: 4px 14px 4px 16px;
  margin-bottom: 14px;
  background: rgba(79, 209, 255, 0.08);
  text-transform: uppercase;
}

.title {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: 1px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 18px rgba(79, 209, 255, 0.35));
  margin-bottom: 8px;
}

.subtitle {
  color: var(--text-dim);
  font-size: 15px;
  letter-spacing: 6px;
  margin-bottom: 10px;
}

.stats-line {
  font-size: 12.5px;
  color: rgba(147, 164, 196, 0.85);
  letter-spacing: 1px;
}

.stats-line span {
  color: var(--success);
  font-weight: 700;
  font-family: Consolas, "Courier New", monospace;
}

/* ---------- 主面板 ---------- */

.panel {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 18px;
  padding: 32px 28px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  animation: fade-up 0.7s ease 0.1s backwards;
}

.panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(79, 209, 255, 0.7), rgba(138, 108, 255, 0.7), transparent);
  border-radius: 2px;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 表单 ---------- */

.field {
  text-align: left;
  margin-bottom: 18px;
}

.field label {
  display: block;
  font-size: 12.5px;
  color: var(--text-dim);
  margin-bottom: 7px;
  letter-spacing: 2px;
}

.field input {
  width: 100%;
  padding: 12px 14px;
  font-size: 15px;
  color: var(--text);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 10px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 209, 255, 0.15);
}

.field input::placeholder { color: rgba(147, 164, 196, 0.5); }

/* ---------- 按钮 ---------- */

.submit-btn {
  position: relative;
  overflow: hidden;
  width: 100%;
  margin-top: 6px;
  padding: 13px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 4px;
  color: #06101f;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.15s, filter 0.2s, opacity 0.2s;
}

.submit-btn::after {
  content: "";
  position: absolute;
  top: 0;
  left: -80%;
  width: 50%;
  height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transform: skewX(-20deg);
  transition: left 0.55s ease;
}

.submit-btn:hover { filter: brightness(1.1); }
.submit-btn:hover::after { left: 130%; }
.submit-btn:active { transform: scale(0.98); }
.submit-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn {
  margin-top: 10px;
  padding: 10px 26px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #06101f;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: filter 0.2s, transform 0.15s;
}

.btn:hover { filter: brightness(1.1); }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-sm {
  padding: 5px 12px;
  font-size: 12.5px;
  border-radius: 8px;
  cursor: pointer;
  color: #ff8b96;
  background: rgba(255, 92, 108, 0.12);
  border: 1px solid rgba(255, 92, 108, 0.4);
  transition: background 0.2s;
}

.btn-sm:hover { background: rgba(255, 92, 108, 0.28); }

.btn-sm:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ---------- 提示信息 ---------- */

.form-msg {
  margin-top: 14px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--danger);
  background: rgba(255, 92, 108, 0.1);
  border: 1px solid rgba(255, 92, 108, 0.35);
  border-radius: 8px;
  padding: 10px 12px;
  text-align: left;
}

/* ---------- 结果区 ---------- */

.fading {
  animation: fade-out 0.6s ease forwards;
}

@keyframes fade-out {
  to { opacity: 0; transform: translateY(-14px); }
}

.result {
  animation: fade-in 0.6s ease 0.1s backwards;
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.check-circle {
  width: 64px;
  height: 64px;
  margin: 0 auto 14px;
}

.check-ring,
.check-mark {
  fill: none;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.check-ring {
  stroke: rgba(46, 230, 168, 0.55);
  stroke-dasharray: 160;
  stroke-dashoffset: 160;
  animation: ring-draw 0.8s ease forwards;
}

.check-mark {
  stroke: var(--success);
  stroke-dasharray: 42;
  stroke-dashoffset: 42;
  animation: mark-draw 0.4s ease 0.55s forwards;
}

@keyframes ring-draw { to { stroke-dashoffset: 0; } }
@keyframes mark-draw { to { stroke-dashoffset: 0; } }

.card-box {
  background: rgba(46, 230, 168, 0.08);
  border: 1px solid rgba(46, 230, 168, 0.4);
  border-radius: 12px;
  padding: 18px 14px;
  margin-bottom: 16px;
}

.card-label {
  font-size: 13px;
  color: var(--text-dim);
  letter-spacing: 2px;
  margin-bottom: 10px;
}

.card-key {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 3px;
  color: var(--success);
  font-family: Consolas, "Courier New", monospace;
  word-break: break-all;
  user-select: all;
  text-shadow: 0 0 16px rgba(46, 230, 168, 0.4);
}

.card-warning {
  font-size: 13px;
  line-height: 1.8;
  color: var(--danger);
  text-align: left;
  background: rgba(255, 92, 108, 0.08);
  border: 1px dashed rgba(255, 92, 108, 0.45);
  border-radius: 8px;
  padding: 10px 12px;
}

/* ---------- 底部 ---------- */

.footer {
  margin-top: 22px;
  font-size: 12px;
  color: rgba(147, 164, 196, 0.6);
  letter-spacing: 1px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px 16px;
  animation: fade-up 0.7s ease 0.2s backwards;
}

.footer a:not(.admin-link) {
  color: rgba(147, 164, 196, 0.85);
  text-decoration: none;
  transition: color 0.2s;
}

.footer a:not(.admin-link):hover {
  color: var(--accent);
  text-decoration: underline;
}

.admin-link {
  color: rgba(147, 164, 196, 0.85);
  text-decoration: none;
  border: 1px solid rgba(120, 160, 255, 0.25);
  border-radius: 999px;
  padding: 3px 14px;
  transition: color 0.2s, border-color 0.2s;
}

.admin-link:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ---------- Toast ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%);
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 13px;
  z-index: 100;
  background: rgba(12, 20, 38, 0.92);
  border: 1px solid rgba(46, 230, 168, 0.4);
  color: #7cf7c0;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(-4px);
}

/* ---------- 弹窗（确认 / 提示，同一图层） ---------- */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 20px;
}

.modal-box {
  width: 100%;
  max-width: 400px;
  text-align: center;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 26px 24px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  animation: fade-up 0.35s ease;
}

.modal-title {
  font-size: 18px;
  letter-spacing: 2px;
  margin-bottom: 12px;
  color: var(--text);
}

.modal-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
  word-break: break-all;
  margin-bottom: 20px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.btn-ghost {
  padding: 10px 22px;
  font-size: 14px;
  border-radius: 10px;
  cursor: pointer;
  color: var(--text-dim);
  background: rgba(20, 30, 55, 0.6);
  border: 1px solid var(--panel-border);
  transition: all 0.2s;
}

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--accent);
}

.btn-danger {
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 700;
  border-radius: 10px;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(90deg, #ff5c6c, #ff8b5c);
  border: none;
  transition: filter 0.2s;
}

.btn-danger:hover { filter: brightness(1.1); }

/* ---------- 导出 ---------- */

.export-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

/* ---------- 后台：标签页 ---------- */

.admin-header { margin-bottom: 18px; }
.admin-title { font-size: 24px; }

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 16px;
}

.tab-btn {
  padding: 9px 18px;
  font-size: 14px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--text-dim);
  background: rgba(20, 30, 55, 0.6);
  border: 1px solid var(--panel-border);
  transition: all 0.2s;
  text-decoration: none;
}

.tab-btn:hover {
  color: var(--text);
  border-color: var(--accent);
}

.tab-btn.active {
  color: #06101f;
  font-weight: 700;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-color: transparent;
}

.admin-panel {
  padding: 26px 24px;
  text-align: left;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fade-in 0.35s ease; }

/* ---------- 后台：数据概览 ---------- */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
}

.stat-card {
  background: rgba(8, 14, 28, 0.6);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 18px 12px;
  text-align: center;
  transition: border-color 0.2s, transform 0.2s;
}

.stat-card:hover {
  border-color: rgba(79, 209, 255, 0.5);
  transform: translateY(-2px);
}

.stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  font-family: Consolas, "Courier New", monospace;
}

.stat-label {
  font-size: 12.5px;
  color: var(--text-dim);
  margin-top: 6px;
  letter-spacing: 1px;
}

/* ---------- 后台：入库 ---------- */

.section-title {
  font-size: 14px;
  color: var(--text-dim);
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.add-card-box {
  margin-bottom: 20px;
}

.manual-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 10px;
}

.manual-grid .btn {
  margin-top: 0;
}

.admin-input {
  width: 100%;
  padding: 12px 14px;
  font-size: 14px;
  color: var(--text);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 10px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.admin-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 209, 255, 0.15);
}

.admin-input::placeholder { color: rgba(147, 164, 196, 0.5); }

/* ---------- 后台：筛选 ---------- */

.filter-bar {
  display: flex;
  gap: 8px;
  margin: 4px 0 14px;
}

.filter-btn {
  padding: 6px 14px;
  font-size: 12.5px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--text-dim);
  background: rgba(20, 30, 55, 0.6);
  border: 1px solid var(--panel-border);
  transition: all 0.2s;
}

.filter-btn:hover { color: var(--text); }
.filter-btn.active {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(79, 209, 255, 0.1);
}

/* ---------- 后台：表格 ---------- */

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

th, td {
  padding: 10px 12px;
  text-align: left;
  white-space: nowrap;
}

thead th {
  color: var(--text-dim);
  font-weight: 600;
  letter-spacing: 1px;
  border-bottom: 1px solid var(--panel-border);
}

tbody tr {
  border-bottom: 1px solid rgba(120, 160, 255, 0.08);
  transition: background 0.15s;
}

tbody tr:hover { background: rgba(120, 160, 255, 0.06); }

td .mono {
  font-family: Consolas, "Courier New", monospace;
}

.empty-row td {
  text-align: center;
  color: rgba(147, 164, 196, 0.6);
  padding: 28px 0;
}

/* ---------- 状态徽章 ---------- */

.pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
}

.pill-green {
  color: #7cf7c0;
  background: rgba(46, 230, 168, 0.12);
  border: 1px solid rgba(46, 230, 168, 0.35);
}

.pill-gray {
  color: #aeb8cf;
  background: rgba(150, 160, 190, 0.12);
  border: 1px solid rgba(150, 160, 190, 0.3);
}

.pill-red {
  color: #ff8b96;
  background: rgba(255, 92, 108, 0.12);
  border: 1px solid rgba(255, 92, 108, 0.35);
}

/* ---------- 响应式 ---------- */

@media (max-width: 720px) {
  body { padding: 12px; }
  .panel { padding: 22px 16px; border-radius: 14px; }
  .admin-panel { padding: 18px 14px; }
  .stat-grid { grid-template-columns: repeat(auto-fit, minmax(96px, 1fr)); gap: 8px; }
  .stat-num { font-size: 22px; }
  .table-wrap table { font-size: 12.5px; }
  th, td { padding: 8px 8px; }
  .manual-grid { grid-template-columns: 1fr; }
  .tabs { gap: 6px; }
  .tab-btn { padding: 7px 14px; font-size: 13px; }
  .footer { font-size: 11.5px; }
}

@media (max-width: 520px) {
  .title { font-size: 24px; }
  .subtitle { letter-spacing: 4px; font-size: 13px; }
  .panel { padding: 24px 18px; }
  .card-key { font-size: 19px; letter-spacing: 2px; }
  .field input,
  .admin-input,
  .add-card-box textarea,
  .login-card input { font-size: 16px; }
}