/* int64.io 共享样式 — 表单、卡片、动效、设计令牌 */
:root {
  --primary-bg: #030712;
  --glass-bg: rgba(17, 24, 39, 0.55);
  --glass-border: rgba(255, 255, 255, 0.1);
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --danger: #ef4444;
  --radius-lg: 24px;
  --radius-pill: 100px;
  --font-sans: "AlibabaSans", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "MiSans", var(--font-sans);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.page-body {
  margin: 0;
  min-height: 100vh;
  background: var(--primary-bg);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.5;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
}

.page-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 24px 48px;
}

.page-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 8px;
}

.page-sub {
  color: var(--text-muted);
  margin-bottom: 32px;
}

.card {
  padding: 32px;
  max-width: 480px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.input,
select,
textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.35);
  color: var(--text-main);
  font-size: 16px;
  font-family: inherit;
}

textarea {
  min-height: 140px;
  resize: vertical;
}

.input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: none;
  font-family: inherit;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  color: #fff;
  box-shadow: 0 0 24px rgba(59, 130, 246, 0.35);
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--glass-border);
}

.btn-outline:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.06);
}

.btn-block {
  width: 100%;
}

.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}

.tab {
  flex: 1;
  padding: 10px;
  text-align: center;
  border-radius: 12px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
}

.tab.active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border-color: var(--glass-border);
}

.err-msg {
  color: var(--danger);
  font-size: 14px;
  margin-top: 12px;
}

.success-msg {
  color: #22c55e;
  font-size: 14px;
  margin-top: 12px;
}

.back-link {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--text-muted);
  font-size: 14px;
}

.back-link:hover {
  color: var(--text-main);
}

/* 首页入场动效 */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th,
.data-table td {
  padding: 12px 10px;
  text-align: left;
  border-bottom: 1px solid var(--glass-border);
}

.data-table th {
  color: var(--text-muted);
  font-weight: 600;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent);
}