/* ==========================================================================
   浮力社 (fulishe.uk) 官方永久发布页样式表
   极简、纯净、安全高防设计：
   - 彻底去除任何诱惑性图片与文字
   - 适配深色与浅色双模现代简约风
   - 高清排版，高对比度，秒开高并发
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计变量系统 (Design Tokens)
   -------------------------------------------------------------------------- */

:root, html[data-theme="dark"] {
  --bg-color: #0b0813;
  --bg-gradient: radial-gradient(circle at 50% 0%, #170d24 0%, #0b0813 60%, #07050c 100%);
  
  --surface-card: rgba(22, 16, 32, 0.75);
  --surface-card-hover: rgba(30, 22, 44, 0.88);
  --surface-inner: rgba(0, 0, 0, 0.35);
  
  --hero-bg: radial-gradient(circle at 50% 20%, rgba(255, 45, 112, 0.12) 0%, rgba(20, 14, 30, 0.95) 100%);
  --hero-border: rgba(255, 45, 112, 0.28);
  --hero-glow: 0 16px 50px rgba(0, 0, 0, 0.6), 0 0 35px rgba(255, 45, 112, 0.12);
  
  --accent-primary: #ff2d70;
  --accent-primary-hover: #ff5588;
  --accent-glow: rgba(255, 45, 112, 0.32);
  --accent-secondary: #f59e0b; /* 琥珀金警告 */
  
  --btn-primary-bg: linear-gradient(135deg, #ff2d70 0%, #c026d3 100%);
  --btn-primary-text: #ffffff;
  --btn-primary-shadow: 0 4px 18px rgba(255, 45, 112, 0.4);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-active: rgba(255, 45, 112, 0.4);
  
  --orb-1-color: rgba(255, 45, 112, 0.15);
  --orb-2-color: rgba(168, 85, 247, 0.12);
  --orb-3-color: rgba(59, 130, 246, 0.10);
  
  --alert-browser-bg: rgba(245, 158, 11, 0.08);
  --alert-browser-border: rgba(245, 158, 11, 0.28);
  --alert-browser-text: #fde68a;
  
  --alert-net-bg: rgba(59, 130, 246, 0.08);
  --alert-net-border: rgba(59, 130, 246, 0.28);
  --alert-net-text: #bfdbfe;
  
  --speed-fast: #10b981;
  --speed-medium: #f59e0b;
  --speed-slow: #ef4444;
  
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

html[data-theme="light"] {
  --bg-color: #f8fafc;
  --bg-gradient: radial-gradient(circle at 50% 0%, #f1f5f9 0%, #f8fafc 60%, #ffffff 100%);
  
  --surface-card: rgba(255, 255, 255, 0.92);
  --surface-card-hover: rgba(255, 255, 255, 1);
  --surface-inner: rgba(0, 0, 0, 0.03);
  
  --hero-bg: radial-gradient(circle at 50% 20%, rgba(217, 119, 6, 0.08) 0%, rgba(255, 255, 255, 0.98) 100%);
  --hero-border: rgba(217, 119, 6, 0.25);
  --hero-glow: 0 12px 35px rgba(0, 0, 0, 0.05);
  
  --accent-primary: #d97706;
  --accent-primary-hover: #b45309;
  --accent-glow: rgba(217, 119, 6, 0.25);
  --accent-secondary: #ea580c;
  
  --btn-primary-bg: linear-gradient(135deg, #d97706 0%, #ea580c 100%);
  --btn-primary-text: #ffffff;
  --btn-primary-shadow: 0 4px 16px rgba(217, 119, 6, 0.28);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --border-color: rgba(0, 0, 0, 0.08);
  --border-active: rgba(217, 119, 6, 0.35);
  
  --orb-1-color: rgba(217, 119, 6, 0.08);
  --orb-2-color: rgba(234, 88, 12, 0.06);
  --orb-3-color: rgba(59, 130, 246, 0.06);
  
  --alert-browser-bg: rgba(245, 158, 11, 0.06);
  --alert-browser-border: rgba(245, 158, 11, 0.35);
  --alert-browser-text: #92400e;
  
  --alert-net-bg: rgba(59, 130, 246, 0.06);
  --alert-net-border: rgba(59, 130, 246, 0.35);
  --alert-net-text: #1e40af;
}

/* --------------------------------------------------------------------------
   2. 基础重置
   -------------------------------------------------------------------------- */

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
  -webkit-font-smoothing: antialiased;
}

/* --------------------------------------------------------------------------
   3. 弥散光晕 (纯CSS轻量化)
   -------------------------------------------------------------------------- */

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

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  transform: translateZ(0);
}

.ambient-orb-1 {
  width: 480px;
  height: 480px;
  top: -120px;
  left: 20%;
  background: radial-gradient(circle, var(--orb-1-color) 0%, transparent 70%);
}

.ambient-orb-2 {
  width: 420px;
  height: 420px;
  top: 35%;
  right: -80px;
  background: radial-gradient(circle, var(--orb-2-color) 0%, transparent 70%);
}

.ambient-orb-3 {
  width: 500px;
  height: 500px;
  bottom: -150px;
  left: -100px;
  background: radial-gradient(circle, var(--orb-3-color) 0%, transparent 70%);
}

/* --------------------------------------------------------------------------
   4. 容器布局
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
  position: relative;
  z-index: 10;
}

/* --------------------------------------------------------------------------
   5. 导航栏
   -------------------------------------------------------------------------- */

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--surface-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  margin-bottom: 1.5rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.15rem;
}

.nav-logo {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}

.nav-right-tools {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-update-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--text-secondary);
  background: var(--surface-inner);
  padding: 0.25rem 0.65rem;
  border-radius: 20px;
  border: 1px solid var(--border-color);
}

.nav-update-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--speed-fast);
  box-shadow: 0 0 8px var(--speed-fast);
}

.theme-toggle-btn {
  background: var(--surface-inner);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s ease;
}

.theme-toggle-btn:hover {
  border-color: var(--accent-primary);
  transform: translateY(-1px);
}

.lang-toggle-btn {
  background: var(--surface-inner);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0 0.65rem;
  height: 34px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 700;
  font-family: var(--font-mono);
  transition: all 0.2s ease;
}

.lang-toggle-btn:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-1px);
}

.lang-icon {
  font-size: 0.85rem;
}

@media (max-width: 480px) {
  .nav-update-pill {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   6. 顶部核心展示卡片
   -------------------------------------------------------------------------- */

.hero-clean-card {
  text-align: center;
  padding: 2.5rem 1.5rem;
  background: var(--hero-bg);
  border: 1px solid var(--hero-border);
  box-shadow: var(--hero-glow);
  border-radius: 20px;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.hero-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-primary);
  background: color-mix(in srgb, var(--accent-primary) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent-primary) 30%, transparent);
  padding: 0.3rem 0.85rem;
  border-radius: 20px;
  margin-bottom: 1rem;
  letter-spacing: 0.5px;
}

.hero-title {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.hero-domain-box {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 1.4rem;
  background: var(--surface-inner);
  border: 1px dashed var(--accent-primary);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 1.1rem;
}

.hero-domain-box:hover {
  background: color-mix(in srgb, var(--accent-primary) 12%, transparent);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px var(--accent-glow);
}

.hero-domain-text {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.hero-copy-hint {
  font-size: 0.75rem;
  color: var(--text-secondary);
  background: var(--surface-card);
  padding: 0.15rem 0.45rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.hero-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   7. 警示与加速指引卡片
   -------------------------------------------------------------------------- */

.alerts-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.alert-card {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  padding: 1.1rem 1.25rem;
  border-radius: 14px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.alert-browser {
  background: var(--alert-browser-bg);
  border: 1px solid var(--alert-browser-border);
}

.alert-network {
  background: var(--alert-net-bg);
  border: 1px solid var(--alert-net-border);
}

.alert-icon {
  font-size: 1.4rem;
  line-height: 1.2;
}

.alert-body {
  flex: 1;
}

.alert-title {
  font-size: 0.98rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.alert-browser .alert-title {
  color: var(--alert-browser-text);
}

.alert-network .alert-title {
  color: var(--alert-net-text);
}

.alert-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.alert-link {
  display: inline-block;
  color: #3b82f6;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
  margin-left: 0.25rem;
  transition: color 0.2s ease;
}

.alert-link:hover {
  color: #60a5fa;
}

/* --------------------------------------------------------------------------
   8. 站点入口网格 (带括号“需海外加速”提醒)
   -------------------------------------------------------------------------- */

.section-block {
  margin-bottom: 2.2rem;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.section-title-wrap h2 {
  font-size: 1.22rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.section-subtitle {
  font-size: 0.84rem;
  color: var(--text-secondary);
}

.btn-retest {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--surface-inner);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.78rem;
  padding: 0.35rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.btn-retest.spinning svg {
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

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

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

.site-card {
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 0.25s ease;
}

.site-card:hover {
  background: var(--surface-card-hover);
  border-color: var(--border-active);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.site-card-primary {
  border-color: color-mix(in srgb, var(--accent-primary) 40%, transparent);
}

.site-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.site-title-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.site-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.site-tag {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  background: color-mix(in srgb, var(--accent-primary) 15%, transparent);
  color: var(--accent-primary);
  border: 1px solid color-mix(in srgb, var(--accent-primary) 35%, transparent);
}

.site-latency {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.74rem;
  color: var(--text-secondary);
}

.latency-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.latency-fast {
  background: var(--speed-fast);
  box-shadow: 0 0 6px var(--speed-fast);
}

.latency-medium {
  background: var(--speed-medium);
  box-shadow: 0 0 6px var(--speed-medium);
}

.latency-slow {
  background: var(--speed-slow);
}

.latency-checking {
  background: var(--text-muted);
}

.site-url {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.site-desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin-bottom: 1.1rem;
  flex: 1;
}

.site-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.btn-enter {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.6rem 1rem;
  border-radius: 8px;
  background: var(--surface-inner);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.btn-enter:hover {
  background: color-mix(in srgb, var(--accent-primary) 15%, transparent);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.btn-enter-primary {
  background: var(--btn-primary-bg);
  border: none;
  color: var(--btn-primary-text);
  box-shadow: var(--btn-primary-shadow);
}

.btn-enter-primary:hover {
  filter: brightness(1.1);
  color: var(--btn-primary-text);
  transform: translateY(-1px);
}

.btn-copy {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.6rem 0.85rem;
  border-radius: 8px;
  background: var(--surface-inner);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.84rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

/* --------------------------------------------------------------------------
   9. 应急联络卡片
   -------------------------------------------------------------------------- */

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

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

.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  padding: 1.15rem;
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
}

.contact-icon {
  font-size: 1.4rem;
  line-height: 1;
}

.contact-info {
  flex: 1;
}

.contact-title {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.contact-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 0.65rem;
  line-height: 1.4;
}

.contact-val-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.contact-value {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--accent-primary);
  background: var(--surface-inner);
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.btn-copy-sm, .btn-bookmark-action {
  background: var(--surface-inner);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.78rem;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-copy-sm:hover, .btn-bookmark-action:hover {
  color: var(--text-primary);
  border-color: var(--accent-primary);
}

/* --------------------------------------------------------------------------
   10. 安全须知列表
   -------------------------------------------------------------------------- */

.notice-card {
  padding: 1.25rem 1.5rem;
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  margin-bottom: 2rem;
}

.notice-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.notice-list {
  padding-left: 1.2rem;
  color: var(--text-secondary);
  font-size: 0.86rem;
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   11. 页脚
   -------------------------------------------------------------------------- */

.footer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
}

/* --------------------------------------------------------------------------
   12. Toast 提示
   -------------------------------------------------------------------------- */

.toast-container {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(30px);
  background: var(--text-primary);
  color: var(--bg-color);
  padding: 0.65rem 1.2rem;
  border-radius: 20px;
  font-size: 0.88rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 9999;
}

.toast-container.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* --------------------------------------------------------------------------
   13. 模态弹窗
   -------------------------------------------------------------------------- */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  z-index: 10000;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  max-width: 440px;
  width: 100%;
  padding: 1.5rem;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1.2rem;
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--text-muted);
  cursor: pointer;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.modal-step {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 0.9rem;
}