/* ============================================
   BCGAME 导航站 · 亮色现代 UI
   完全重构样式（PC / H5 响应式）
   ============================================ */

:root {
  --page-bg: #f4f4fb;
  --page-bg-soft: #ebedf6;

  --surface: #ffffff;
  --surface-soft: #f9fafb;
  --surface-elevated: rgba(255, 255, 255, 0.96);

  --border-subtle: rgba(15, 23, 42, 0.06);
  --border-strong: rgba(15, 23, 42, 0.14);

  --text-main: #111827;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;

  /* BCGAME 近似绿色作为主色 */
  --accent: #16a34a;
  --accent-soft: rgba(22, 163, 74, 0.1);
  --accent-strong: #15803d;

  --danger: #ef4444;
  --danger-soft: rgba(239, 68, 68, 0.08);

  --warning: #f59e0b;
  --warning-soft: rgba(245, 158, 11, 0.12);

  --shadow-soft: 0 22px 48px rgba(15, 23, 42, 0.16);
  --shadow-subtle: 0 10px 24px rgba(148, 163, 184, 0.22);

  --radius-xl: 26px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-pill: 999px;

  --transition-fast: 0.18s ease-out;
  --transition-normal: 0.24s ease-out;
}

/* ============================================
   Reset & Base
   ============================================ */

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

html,
body {
  height: 100%;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #ffffff 0, var(--page-bg) 52%, var(--page-bg-soft) 100%);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

button {
  font: inherit;
  border: none;
  background: none;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ============================================
   背景层（柔和几何感，避免“AI 炫技”）
   ============================================ */

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

.bg-layer {
  position: absolute;
  inset: 0;
}

.bg-layer-base {
  background:
    radial-gradient(circle at 0% 0%, #ffffff 0, #ffffff 36%, transparent 70%),
    radial-gradient(circle at 100% 0%, #e0fbe6 0, transparent 60%),
    linear-gradient(180deg, #f5f5fb 0, #e9edf7 40%, #eef3fb 100%);
}

.bg-layer-noise {
  opacity: 0.18;
  background-image: linear-gradient(90deg, rgba(15, 23, 42, 0.02) 1px, transparent 0),
    linear-gradient(rgba(15, 23, 42, 0.015) 1px, transparent 0);
  background-size: 80px 1px, 1px 80px;
  mix-blend-mode: soft-light;
}

.bg-layer-accent {
  filter: blur(60px);
  opacity: 0.7;
  background:
    radial-gradient(circle at 12% 35%, rgba(22, 163, 74, 0.22) 0, transparent 56%),
    radial-gradient(circle at 88% 10%, rgba(59, 130, 246, 0.18) 0, transparent 52%);
}

/* ============================================
   页面主容器
   ============================================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 18px 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

@media (min-width: 1024px) {
  .container {
    padding: 24px 28px 40px;
    gap: 22px;
  }
}

/* ============================================
   顶部导航
   ============================================ */

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.nav-logo {
  flex-shrink: 0;
}

.logo-img {
  height: 52px;
  width: auto;
  border-radius: 0;
  box-shadow: none;
}

.nav-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.nav-title-cn {
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav-title-en {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.nav-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.nav-stats {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 10px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: 0 10px 22px rgba(148, 163, 184, 0.3);
  backdrop-filter: blur(18px);
}

.nav-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.stat-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}

.stat-num {
  font-family: "Space Grotesk", monospace;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
}

.nav-service-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, #16a34a, #22c55e);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 10px 26px rgba(22, 163, 74, 0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), filter var(--transition-fast);
  white-space: nowrap;
}

.nav-service-btn svg {
  width: 18px;
  height: 18px;
}

.nav-service-btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.03);
  box-shadow: 0 14px 32px rgba(22, 163, 74, 0.5);
}

.nav-service-btn:active {
  transform: translateY(0);
  box-shadow: 0 6px 18px rgba(22, 163, 74, 0.45);
}

@media (max-width: 768px) {
  .top-nav {
    gap: 8px;
  }

  .nav-right {
    width: auto;
  }

  .logo-img {
    height: 40px;
  }
}

/* ============================================
   Banner / Hero 区
   ============================================ */

.hero-section {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--surface-elevated);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(148, 163, 184, 0.4);
}

.hero-banner {
  width: 100%;
  height: auto;
  display: block;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  align-items: flex-end;
}

.hero-text {
  pointer-events: auto;
  padding: 18px 18px 18px;
  max-width: 72%;
  background: linear-gradient(90deg, rgba(248, 250, 252, 0.92) 0%, rgba(248, 250, 252, 0.82) 38%, transparent 80%);
  border-radius: 0 999px 0 0;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  background: rgba(22, 163, 74, 0.08);
  color: var(--accent-strong);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.hero-title {
  font-size: 1.7rem;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.hero-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

@media (min-width: 1024px) {
  .hero-text {
    padding: 22px 22px 22px;
    max-width: 55%;
  }

  .hero-title {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  .hero-overlay {
    align-items: flex-end;
    background: linear-gradient(to top, rgba(248, 250, 252, 0.95) 0, rgba(248, 250, 252, 0.88) 40%, transparent 80%);
  }

  .hero-text {
    max-width: 100%;
    padding: 14px 14px 16px;
    border-radius: 20px 20px 0 0;
    background: transparent;
  }

  .hero-title {
    font-size: 1.42rem;
  }

  .hero-subtitle {
    font-size: 0.82rem;
  }
}

/* ============================================
   主内容 & 测速区
   ============================================ */

.main-wrapper {
  margin-top: 4px;
}

.speed-section {
  margin-top: 10px;
  padding: 18px 18px 20px;
  border-radius: var(--radius-xl);
  background: radial-gradient(circle at top left, rgba(22, 163, 74, 0.06) 0, transparent 40%),
    radial-gradient(circle at top right, rgba(59, 130, 246, 0.07) 0, transparent 45%), var(--surface-elevated);
  border: 1px solid rgba(148, 163, 184, 0.36);
  box-shadow: var(--shadow-subtle);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: nowrap;
}

.section-heading {
  display: flex;
  flex-direction: row;
  gap: 6px;
  min-width: 0;
}

.section-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.refresh-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.7);
  background: rgba(255, 255, 255, 0.9);
  color: var(--text-main);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast),
    box-shadow var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
}

.refresh-btn svg {
  width: 16px;
  height: 16px;
}

.refresh-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-strong);
  box-shadow: 0 8px 20px rgba(22, 163, 74, 0.24);
  transform: translateY(-1px);
}

.refresh-btn.spinning svg {
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 768px) {
  .speed-section {
    padding: 14px 12px 18px;
    border-radius: 22px;
  }

  .section-title {
    font-size: 0.95rem;
  }
}

/* ============================================
   导航卡片栅格
   ============================================ */

.domains-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

@media (max-width: 768px) {
  .domains-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }
}

@media (max-width: 420px) {
  .domains-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ============================================
   导航卡片（测速卡）设计
   ============================================ */

.domain-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  box-shadow: 0 14px 30px rgba(148, 163, 184, 0.3);
  display: flex;
  flex-direction: column;
  cursor: pointer;
  /* PC 端卡片 1:1 正方形 */
  aspect-ratio: 1 / 1;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.domain-card:hover {
  transform: translateY(-6px);
  border-color: rgba(22, 163, 74, 0.5);
  box-shadow: 0 20px 40px rgba(148, 163, 184, 0.45);
}

.card-bg-wrapper {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(135deg, #ecfdf3, #eff6ff);
}

.card-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.92;
  transform: scale(1.02);
  transition: transform 0.7s ease-out, opacity 0.3s ease-out;
}

.domain-card:hover .card-bg-img {
  transform: scale(1.08);
  opacity: 1;
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.35) 0, rgba(255, 255, 255, 0.85) 52%, rgba(255, 255, 255, 0.98) 100%);
  mix-blend-mode: lighten;
}

.card-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 12px 12px 10px;
  height: 100%;
}

.card-main-info {
  margin-bottom: 6px;
}

.domain-name {
  font-family: "Space Grotesk", monospace;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.domain-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px dashed rgba(148, 163, 184, 0.7);
}

.card-stats {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--text-muted);
  box-shadow: 0 0 0 1px rgba(148, 163, 184, 0.35);
}

.status-dot.testing {
  background: #f97316;
  box-shadow: 0 0 0 1px rgba(249, 115, 22, 0.3);
}

.status-dot.online {
  background: var(--accent);
  box-shadow: 0 0 0 1px rgba(22, 163, 74, 0.35);
}

.status-dot.offline {
  background: var(--danger);
  box-shadow: 0 0 0 1px rgba(239, 68, 68, 0.35);
}

.speed-tag {
  font-family: "Space Grotesk", monospace;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-strong);
  padding: 2px 6px;
  border-radius: 999px;
  background: rgba(22, 163, 74, 0.08);
  box-shadow: 0 0 0 1px rgba(22, 163, 74, 0.16);
}

.enter-btn {
  flex-shrink: 0;
  padding: 0.3rem 0.9rem;
  border-radius: var(--radius-pill);
  background: rgba(15, 23, 42, 0.9);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.55);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), filter var(--transition-fast);
}

.enter-btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.03);
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.6);
}

.enter-btn:active {
  transform: translateY(0);
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.5);
}

@media (max-width: 768px) {
  .domain-card {
    border-radius: 16px;
    /* 移动端也保持近似 1:1，统一视觉 */
    aspect-ratio: 1 / 1;
  }

  .card-content {
    padding: 9px 9px 8px;
  }

  .domain-name {
    font-size: 0.98rem;
  }

  .domain-desc {
    display: none;
  }

  .card-footer {
    padding-top: 6px;
  }

  .card-stats {
    gap: 6px;
  }

  .speed-tag {
    font-size: 0.78rem;
  }

  .enter-btn {
    padding-inline: 0.7rem;
    font-size: 0.72rem;
  }
}

/* ============================================
   页脚
   ============================================ */

.site-footer {
  margin-top: 18px;
  border-radius: 18px;
  border: 1px solid rgba(209, 213, 219, 0.8);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 10px 24px rgba(148, 163, 184, 0.32);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 16px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.footer-nav {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.footer-nav a {
  color: var(--text-muted);
  position: relative;
  padding-bottom: 2px;
}

.footer-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: rgba(15, 23, 42, 0.5);
  transition: width 0.18s ease-out;
}

.footer-nav a:hover::after {
  width: 100%;
}

@media (max-width: 768px) {
  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ============================================
   加载层（轻量进度条）
   ============================================ */

.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.1);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  transition: opacity 0.4s ease-out;
}

.loading-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-panel {
  background: rgba(255, 255, 255, 0.96);
  border-radius: 24px;
  padding: 18px 20px 16px;
  border: 1px solid rgba(209, 213, 219, 0.9);
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.32);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  min-width: 260px;
}

.loading-logo img {
  height: 52px;
  width: auto;
  border-radius: 14px;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.45);
}

.loading-meter {
  margin-top: 6px;
  width: 100%;
  height: 4px;
  border-radius: 999px;
  background: rgba(209, 213, 219, 0.9);
  overflow: hidden;
  position: relative;
}

.loading-bar {
  position: absolute;
  inset: 0;
  width: 40%;
  border-radius: inherit;
  background: linear-gradient(90deg, rgba(22, 163, 74, 0.15), rgba(22, 163, 74, 0.9));
  animation: loading-slide 1.2s ease-in-out infinite;
}

@keyframes loading-slide {
  0% {
    transform: translateX(-100%);
  }

  50% {
    transform: translateX(10%);
  }

  100% {
    transform: translateX(140%);
  }
}

.loading-text {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

@media (max-width: 768px) {
  .loading-panel {
    min-width: 220px;
    padding-inline: 16px;
  }

  .loading-logo img {
    height: 44px;
  }
}