:root {
  --bg: #0a0b10;
  --bg-elevated: #12141c;
  --surface: #181b26;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8eaef;
  --muted: #9aa3b2;
  --accent: #6ee7ff;
  --accent-dim: rgba(var(--accent-rgb), 0.15);
  --accent-strong: #22d3ee;
  --accent-rgb: 34, 211, 238;
  --btn-grad-end: #3b82f6;
  --btn-primary-fg: #041018;
  --btn-shadow: 0 8px 28px rgba(34, 211, 238, 0.35);
  --btn-shadow-hover: 0 12px 36px rgba(34, 211, 238, 0.45);
  --hero-glow: radial-gradient(
    ellipse at center,
    rgba(34, 211, 238, 0.22) 0%,
    transparent 65%
  );
  --header-scrim: rgba(10, 11, 16, 0.85);
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --max: 1120px;
  --font-body: "Outfit", system-ui, sans-serif;
  --font-heading: "Outfit", system-ui, sans-serif;
  --btn-radius: 999px;
  --filter-radius: 999px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}

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

a:hover {
  text-decoration: underline;
}

.container {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--header-scrim);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  flex-wrap: wrap;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--text);
  text-decoration: none;
}

.logo:hover {
  color: var(--accent);
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.nav a {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
}

.nav a:hover {
  color: var(--text);
  text-decoration: none;
}

.hero {
  position: relative;
  padding: clamp(3.5rem, 10vw, 6rem) 0 clamp(4rem, 12vw, 7rem);
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
}

.hero-glow {
  position: absolute;
  inset: -20% 20% auto;
  height: 60%;
  background: var(--hero-glow);
  pointer-events: none;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-strong);
  margin: 0 0 1rem;
}

.hero h1 {
  font-family: var(--font-heading);
  margin: 0 0 1rem;
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero-lead {
  margin: 0 0 2rem;
  font-size: 1.125rem;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--btn-radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-strong), var(--btn-grad-end));
  color: var(--btn-primary-fg);
  box-shadow: var(--btn-shadow);
}

.btn-primary:hover {
  box-shadow: var(--btn-shadow-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover {
  border-color: rgba(var(--accent-rgb), 0.35);
  background: var(--accent-dim);
}

.band {
  padding: clamp(2.5rem, 6vw, 4rem) 0;
  border-block: 1px solid var(--border);
}

.band-alt {
  background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg) 100%);
}

.split {
  display: grid;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 768px) {
  .split {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.split h2 {
  font-family: var(--font-heading);
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.split p {
  margin: 0 0 1.25rem;
  color: var(--muted);
}

.split .btn {
  margin-top: 0.25rem;
}

.tagline {
  margin: 0;
  padding: 1.25rem 1.5rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.65;
}

.section {
  padding: clamp(3rem, 8vw, 5rem) 0;
}

.section-games {
  background: var(--bg-elevated);
}

.section-title {
  font-family: var(--font-heading);
  margin: 0 0 2rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  text-align: center;
}

.category-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.category-card {
  padding: 1.75rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.category-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-strong);
  margin-bottom: 0.5rem;
}

.category-card h3 {
  font-family: var(--font-heading);
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
}

.category-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.notice {
  margin: 2rem 0 0;
  text-align: center;
  font-size: 0.9rem;
  color: var(--muted);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.filter-btn {
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--filter-radius);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--muted);
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.filter-btn:hover {
  color: var(--text);
  border-color: rgba(var(--accent-rgb), 0.25);
}

.filter-btn.is-active {
  background: var(--accent-dim);
  border-color: rgba(var(--accent-rgb), 0.45);
  color: var(--accent-strong);
}

.game-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
}

@media (min-width: 640px) {
  .game-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .game-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.game-card {
  display: block;
  background: var(--surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform 0.15s ease, border-color 0.15s ease;
  text-decoration: none;
  color: inherit;
}

.game-card:hover {
  transform: translateY(-2px);
  border-color: rgba(var(--accent-rgb), 0.2);
}

.game-card.is-hidden {
  display: none;
}

.game-empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--muted);
  padding: 2rem;
}

.game-thumb {
  aspect-ratio: 16 / 10;
  background: linear-gradient(145deg, #2a2d3a, #1a1d28);
  overflow: hidden;
}

.game-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.game-card h3 {
  font-family: var(--font-heading);
  margin: 0;
  padding: 1rem 1rem 0.25rem;
  font-size: 1rem;
}

.game-meta {
  margin: 0;
  padding: 0 1rem 1rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.about {
  border-top: 1px solid var(--border);
}

.about-inner {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
}

.about-inner p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.about-inner .contact {
  margin-top: 1.5rem;
  color: var(--text);
}

.site-footer {
  padding: 1.5rem 0 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.875rem;
  color: var(--muted);
}

.site-footer p {
  margin: 0;
}

.boot-error {
  margin: 2rem auto;
  max-width: 36rem;
  padding: 1.25rem 1.5rem;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  border-radius: var(--radius-sm);
  color: #fecaca;
  text-align: center;
  line-height: 1.5;
}

/* ----- 根路径 /：不展示企业列表（仅背景） ----- */
.portal-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
}

.portal-page--private .portal-sheen {
  opacity: 0.35;
}

.portal-sheen {
  position: fixed;
  inset: -30% 0 auto;
  height: 55%;
  background: radial-gradient(
    ellipse 80% 60% at 50% 0%,
    rgba(34, 211, 238, 0.12) 0%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
}

.portal-private {
  flex: 1;
  position: relative;
  z-index: 1;
}

.portal-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 0;
}

.portal-sep {
  margin: 0 0.5rem;
  opacity: 0.5;
}

.inline-code {
  font-family: ui-monospace, monospace;
  font-size: 0.88em;
  background: var(--surface);
  padding: 0.15em 0.4em;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.admin-wrap {
  max-width: 44rem;
  width: 100%;
}

.admin-card {
  margin-bottom: 1.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.admin-h2 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
}

.admin-label {
  display: block;
  margin: 0.75rem 0 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.admin-input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
}

.admin-input:focus {
  outline: none;
  border-color: rgba(var(--accent-rgb), 0.45);
}

.admin-btn {
  margin-top: 0.75rem;
}

.admin-msg {
  margin: 0.75rem 0 0;
  font-size: 0.9rem;
  color: var(--muted);
  min-height: 1.25em;
}

.muted.small {
  font-size: 0.85rem;
  margin: 0 0 1rem;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: 0.9rem;
}

.admin-table th,
.admin-table td {
  text-align: left;
  padding: 0.5rem 0.65rem;
  border-bottom: 1px solid var(--border);
}

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

.btn-del {
  font-family: inherit;
  font-size: 0.8rem;
  padding: 0.35rem 0.65rem;
  border-radius: 8px;
  border: 1px solid rgba(239, 68, 68, 0.45);
  background: transparent;
  color: #fecaca;
  cursor: pointer;
}

.btn-del:hover {
  background: rgba(239, 68, 68, 0.12);
}

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

.admin-table .row-theme-select {
  max-width: 14rem;
  width: 100%;
  padding: 0.4rem 0.5rem;
  font-size: 0.8rem;
  margin-bottom: 0.35rem;
  display: block;
}

.admin-table .btn-row {
  font-family: inherit;
  font-size: 0.78rem;
  padding: 0.35rem 0.55rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  margin-right: 0.35rem;
  margin-top: 0.15rem;
}

.admin-table .btn-row:hover {
  border-color: rgba(var(--accent-rgb), 0.35);
}

.admin-table .btn-row-primary {
  border-color: rgba(var(--accent-rgb), 0.45);
  color: var(--accent-strong);
}

.admin-table .btn-row-danger {
  border-color: rgba(239, 68, 68, 0.45);
  color: #fecaca;
}

.admin-table .admin-op-cell {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
  max-width: 20rem;
}

.admin-table .admin-op-cell .btn-row {
  margin-right: 0;
  margin-top: 0;
}

.admin-table .btn-row-open {
  border-color: rgba(var(--accent-rgb), 0.5);
  color: var(--accent-strong);
}

.admin-table .btn-row-copy {
  border-color: rgba(148, 163, 184, 0.4);
  color: #cbd5e1;
}