/* ============================================
   火患逆转·隐患突破 — 共享样式表
   暗色主题 · 毛玻璃卡片 · 微动效
   ============================================ */

/* --- CSS 自定义属性（主题色） --- */
:root {
  --color-bg-start: #0b1120;
  --color-bg-end: #141e33;
  --color-card-bg: rgba(255, 255, 255, 0.06);
  --color-card-border: rgba(255, 255, 255, 0.1);
  --color-card-hover-border: rgba(249, 115, 22, 0.5);
  --color-primary: #f97316;
  --color-danger: #ef4444;
  --color-safe: #22c55e;
  --color-warning: #eab308;
  --color-text: #e2e8f0;
  --color-text-dim: #94a3b8;
  --color-text-bright: #ffffff;
  --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --radius-card: 16px;
  --radius-btn: 10px;
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- 全局重置 --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  background: linear-gradient(135deg, var(--color-bg-start), var(--color-bg-end));
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
  padding: 0 20px 40px;
}

/* --- 导航栏 --- */
.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 10px;
}

.top-nav .logo {
  font-size: 1.25rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-primary), var(--color-danger));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.5px;
}

.top-nav .nav-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.top-nav .nav-links a {
  color: var(--color-text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 6px 14px;
  border-radius: var(--radius-btn);
  transition: var(--transition-fast);
  border: 1px solid transparent;
}

.top-nav .nav-links a:hover {
  color: var(--color-text-bright);
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.1);
}

.top-nav .nav-links a.active {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* --- 标题渐变文字 --- */
.gradient-title {
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-danger), var(--color-warning));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
  margin-bottom: 8px;
}

.subtitle {
  color: var(--color-text-dim);
  font-size: 1rem;
  margin-bottom: 28px;
}

/* --- 卡片（毛玻璃） --- */
.card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-card);
  padding: 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition-smooth);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--color-card-hover-border);
  box-shadow: 0 8px 32px rgba(249, 115, 22, 0.15);
}

.card h3 {
  font-size: 1.15rem;
  color: var(--color-text-bright);
  margin-bottom: 8px;
}

.card p {
  color: var(--color-text-dim);
  font-size: 0.9rem;
}

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 22px;
  border-radius: var(--radius-btn);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-stack);
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #ea580c);
  color: #fff;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(249, 115, 22, 0.35);
}

.btn-danger {
  background: linear-gradient(135deg, var(--color-danger), #dc2626);
  color: #fff;
}

.btn-danger:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(239, 68, 68, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.btn:active {
  transform: scale(0.96);
}

/* --- 网格布局 --- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

/* --- 状态徽章 --- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.badge-safe {
  background: rgba(34, 197, 94, 0.15);
  color: var(--color-safe);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--color-danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-locked {
  background: rgba(148, 163, 184, 0.12);
  color: var(--color-text-dim);
  border: 1px solid rgba(148, 163, 184, 0.2);
}

/* --- 进度条 --- */
.progress-bar {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 99px;
  overflow: hidden;
  margin: 12px 0;
}

.progress-bar .fill {
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-danger));
  transition: width var(--transition-smooth);
}

/* --- 动画区（微动画容器） --- */
.animation-stage {
  width: 100%;
  max-width: 480px;
  aspect-ratio: 16 / 9;
  background: rgba(0, 0, 0, 0.4);
  border-radius: var(--radius-card);
  border: 1px solid rgba(255, 255, 255, 0.08);
  margin: 20px auto;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* --- 安全报告卡片 --- */
.report-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-card);
  padding: 20px;
  margin-bottom: 16px;
}

.report-card .label {
  color: var(--color-text-dim);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.report-card .value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text-bright);
}

/* --- 响应式 --- */
@media (max-width: 600px) {
  body {
    padding: 0 12px 32px;
  }

  .gradient-title {
    font-size: 1.6rem;
  }

  .top-nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 18px;
  }
}