/* ============================================================
   酷越 AI 导航 · 新版设计系统 v1  (design-system.css)
   风格：清爽编辑媒体风 / flat 无阴影 / 靛蓝主色
   命名前缀：cy- （避免与旧样式冲突，新页面/新组件统一使用）
   设计依据：docs/redesign-design.md
   ============================================================ */

:root {
  /* 背景 */
  --cy-bg: #F7F8FA;
  --cy-surface: #FFFFFF;
  --cy-surface-alt: #F2F4F7;

  /* 品牌主色 · 靛蓝 */
  --cy-primary: #185FA5;
  --cy-primary-dark: #134B83;
  --cy-primary-darker: #0F3D6B;
  --cy-primary-light: #E8F1F9;
  --cy-primary-tint: #F3F8FD;

  /* 辅助色 */
  --cy-teal: #1D9E75;          /* 免费 / 推荐 / 通过 */
  --cy-teal-light: #E6F5EF;
  --cy-amber: #BA7517;         /* 付费 / Freemium / 警告 */
  --cy-amber-light: #FBF3E6;
  --cy-coral: #D85A30;         /* 热门 / 精品 徽章 */
  --cy-coral-light: #FBEDE7;
  --cy-danger: #D14343;        /* 错误 */

  /* 文字 */
  --cy-text: #2C2C2A;
  --cy-text-2: #5F5E5A;
  --cy-text-3: #888780;
  --cy-text-invert: #FFFFFF;

  /* 边框 */
  --cy-border: rgba(0, 0, 0, 0.08);
  --cy-border-strong: rgba(0, 0, 0, 0.14);

  /* 圆角 */
  --cy-radius-lg: 12px;
  --cy-radius: 8px;
  --cy-radius-sm: 6px;
  --cy-radius-pill: 999px;

  /* 间距 */
  --cy-gap: 16px;
  --cy-gap-lg: 24px;
  --cy-gap-sm: 10px;

  /* 字体 */
  --cy-font: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* 容器 */
  --cy-container: 1200px;
  --cy-container-narrow: 960px;
}

/* ===== 基础排版辅助 ===== */
.cy-font { font-family: var(--cy-font); }
.cy-muted { color: var(--cy-text-2); }
.cy-muted-3 { color: var(--cy-text-3); }

/* ===== 顶部导航 ===== */
.cy-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--cy-border);
}
.cy-nav-inner {
  max-width: var(--cy-container); margin: 0 auto; height: 60px;
  display: flex; align-items: center; gap: 20px; padding: 0 20px;
}
.cy-brand { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 17px; color: var(--cy-text); text-decoration: none; white-space: nowrap; }
.cy-brand-logo {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--cy-primary), var(--cy-teal));
  color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px;
}
.cy-nav-links { display: flex; gap: 4px; margin-left: 8px; }
.cy-nav-link {
  padding: 8px 12px; border-radius: var(--cy-radius); color: var(--cy-text-2);
  text-decoration: none; font-size: 14px; transition: background .15s, color .15s; white-space: nowrap;
}
.cy-nav-link:hover { background: var(--cy-surface-alt); color: var(--cy-primary); }
.cy-nav-link.active { color: var(--cy-primary); background: var(--cy-primary-light); font-weight: 600; }
.cy-nav-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.cy-logo { font-weight: 700; font-size: 18px; color: var(--cy-text); text-decoration: none; white-space: nowrap; }
.cy-logo span { color: var(--cy-primary); }
.cy-nav-links a { padding: 8px 12px; border-radius: var(--cy-radius); color: var(--cy-text-2); text-decoration: none; font-size: 14px; transition: background .15s, color .15s; white-space: nowrap; }
.cy-nav-links a:hover { background: var(--cy-surface-alt); color: var(--cy-primary); }
.cy-nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }

/* ===== 按钮 ===== */
.cy-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 38px; padding: 0 16px; border-radius: var(--cy-radius); font-size: 14px; font-weight: 500;
  border: 1px solid transparent; cursor: pointer; text-decoration: none; transition: all .15s; font-family: inherit; white-space: nowrap;
}
.cy-btn-primary { background: var(--cy-primary); color: #fff; }
.cy-btn-primary:hover { background: var(--cy-primary-dark); }
.cy-btn-ghost { background: #fff; color: var(--cy-text); border-color: var(--cy-border-strong); }
.cy-btn-ghost:hover { border-color: var(--cy-primary); color: var(--cy-primary); }
.cy-btn-sm { height: 32px; padding: 0 12px; font-size: 13px; }
.cy-btn-block { width: 100%; }

/* ===== 徽章 ===== */
.cy-badge {
  display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px;
  border-radius: var(--cy-radius-sm); font-size: 12px; font-weight: 600; line-height: 1.6; white-space: nowrap;
}
.cy-badge-premium { background: var(--cy-coral-light); color: var(--cy-coral); }
.cy-badge-free { background: var(--cy-teal-light); color: var(--cy-teal); }
.cy-badge-freemium { background: var(--cy-amber-light); color: var(--cy-amber); }
.cy-badge-paid { background: var(--cy-surface-alt); color: var(--cy-text-2); }
.cy-badge-new { background: var(--cy-primary-light); color: var(--cy-primary); }

/* ===== 评分 ===== */
.cy-score { display: inline-flex; align-items: center; gap: 4px; font-weight: 700; font-size: 14px; }
.cy-score .num { font-variant-numeric: tabular-nums; }
.cy-score-high { color: var(--cy-primary); }
.cy-score-mid { color: var(--cy-teal); }
.cy-score-low { color: var(--cy-text-3); }
.cy-score-ring {
  width: 46px; height: 46px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px; color: #fff;
}
.cy-score-bars { display: flex; flex-direction: column; gap: 7px; }
.cy-score-row { display: grid; grid-template-columns: 58px 1fr 36px; align-items: center; gap: 8px; font-size: 12px; color: var(--cy-text-2); }
.cy-score-track { height: 6px; border-radius: 999px; background: var(--cy-surface-alt); overflow: hidden; }
.cy-score-fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--cy-primary), var(--cy-teal)); }
.cy-score-val { text-align: right; font-weight: 700; color: var(--cy-text); font-variant-numeric: tabular-nums; }

/* ===== 卡片 ===== */
.cy-card { background: var(--cy-surface); border: 1px solid var(--cy-border); border-radius: var(--cy-radius-lg); padding: 16px; transition: border-color .15s, transform .15s; }
.cy-card:hover { border-color: var(--cy-border-strong); }
.cy-card-link { text-decoration: none; color: inherit; display: block; }

/* ===== 标签 ===== */
.cy-tag {
  display: inline-block; padding: 2px 9px; border-radius: var(--cy-radius-pill);
  font-size: 12px; background: var(--cy-surface-alt); color: var(--cy-text-2);
  border: 1px solid var(--cy-border); text-decoration: none; transition: all .15s; cursor: pointer;
}
.cy-tag:hover { color: var(--cy-primary); border-color: var(--cy-primary); }

/* ===== Hero / 搜索 ===== */
.cy-hero {
  background: linear-gradient(180deg, var(--cy-primary-tint), #fff);
  padding: 52px 20px 40px; text-align: center; border-bottom: 1px solid var(--cy-border);
}
.cy-hero-title { font-size: 30px; font-weight: 700; color: var(--cy-text); margin: 0 0 10px; letter-spacing: -0.5px; }
.cy-hero-sub { font-size: 15px; color: var(--cy-text-2); margin: 0 0 24px; }
.cy-search {
  max-width: 560px; margin: 0 auto; display: flex; align-items: center;
  background: #fff; border: 1px solid var(--cy-border-strong); border-radius: var(--cy-radius); padding: 6px 6px 6px 14px;
}
.cy-search input { flex: 1; border: 0; outline: 0; font-size: 15px; background: transparent; font-family: inherit; min-width: 0; }
.cy-quick-tags { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }

/* ===== Section ===== */
.cy-section { max-width: var(--cy-container); margin: 0 auto; padding: 36px 20px; }
.cy-section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 18px; gap: 12px; }
.cy-section-title { font-size: 20px; font-weight: 700; color: var(--cy-text); margin: 0; display: flex; align-items: center; gap: 8px; }
.cy-section-title::before { content: ""; width: 4px; height: 18px; border-radius: 2px; background: var(--cy-primary); }
.cy-section-more { color: var(--cy-primary); font-size: 13px; text-decoration: none; white-space: nowrap; }
.cy-section-more:hover { text-decoration: underline; }

/* ===== 栅格 ===== */
.cy-grid { display: grid; gap: var(--cy-gap); }
.cy-grid-4 { grid-template-columns: repeat(4, 1fr); }
.cy-grid-3 { grid-template-columns: repeat(3, 1fr); }
.cy-grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 1023px) { .cy-grid-4 { grid-template-columns: repeat(2, 1fr); } .cy-grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .cy-grid-4, .cy-grid-3, .cy-grid-2 { grid-template-columns: 1fr; } }

/* ===== 工具卡（推荐 / 首页） ===== */
.cy-tool-card { display: flex; flex-direction: column; gap: 8px; height: 100%; }
.cy-tool-card .top { display: flex; align-items: center; gap: 10px; }
.cy-tool-logo { width: 40px; height: 40px; border-radius: 10px; object-fit: cover; background: var(--cy-surface-alt); flex-shrink: 0; }
.cy-tool-name { font-weight: 600; font-size: 15px; color: var(--cy-text); }
.cy-tool-company { font-size: 12px; color: var(--cy-text-3); }
.cy-tool-desc {
  font-size: 13px; color: var(--cy-text-2); line-height: 1.5; margin: 0;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.cy-tool-meta { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-top: auto; padding-top: 4px; }

/* ===== 内容卡（测评 / 对比 / 教程） ===== */
.cy-post-card { display: flex; flex-direction: column; height: 100%; }
.cy-post-cover { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--cy-radius); background: var(--cy-surface-alt); margin-bottom: 10px; }
.cy-post-title { font-size: 15px; font-weight: 600; color: var(--cy-text); margin: 0 0 6px; line-height: 1.4; }
.cy-post-excerpt {
  font-size: 13px; color: var(--cy-text-2); line-height: 1.5; margin: 0;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.cy-post-meta { font-size: 12px; color: var(--cy-text-3); margin-top: 8px; }

/* ===== 对比卡 ===== */
.cy-compare-card { display: flex; align-items: center; gap: 12px; }
.cy-compare-name { font-weight: 600; font-size: 14px; color: var(--cy-text); }
.cy-vs { font-weight: 700; color: var(--cy-coral); font-size: 14px; flex-shrink: 0; }

/* ===== 用户信息条（登录态） ===== */
.cy-user-pill { display: inline-flex; align-items: center; gap: 8px; padding: 4px 4px 4px 12px; border: 1px solid var(--cy-border); border-radius: var(--cy-radius-pill); font-size: 13px; color: var(--cy-text-2); }
.cy-user-avatar { width: 26px; height: 26px; border-radius: 50%; background: var(--cy-primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; }

/* ===== 通用容器 ===== */
.cy-container { max-width: var(--cy-container); margin: 0 auto; padding: 0 20px; }
.cy-divider { height: 1px; background: var(--cy-border); margin: 0; border: 0; }

/* 首页导航登录入口定位 */
.header-login { margin-left: auto; }
@media (max-width: 768px) {
  .header-login { margin-left: 0; }
}

/* ===== 移动端导航兜底 ===== */
@media (max-width: 768px) {
  .cy-nav-links { display: none; }
  .cy-hero-title { font-size: 24px; }
  .cy-section { padding: 28px 16px; }
}

/* ===== 工具详情页布局（SSG 生成页共用） ===== */
.cy-detail-wrap { max-width: 1180px; margin: 0 auto; padding: 22px 20px 60px; }
.cy-detail-grid { display: grid; grid-template-columns: 1fr 320px; gap: 28px; align-items: start; }
.cy-hero-card { display: flex; gap: 22px; padding: 26px; background: var(--cy-surface); border: 1px solid var(--cy-border); border-radius: 16px; }
.cy-hero-logo { width: 92px; height: 92px; flex: 0 0 92px; border-radius: 18px; display: flex; align-items: center; justify-content: center; font-size: 38px; font-weight: 700; color: #fff; background: var(--cy-primary); background-size: cover; background-position: center; overflow: hidden; position: relative; }
.tool-logo-favicon { position: absolute; inset: 0; border-radius: inherit; background-size: cover; background-position: center; background-repeat: no-repeat; }
.tool-logo-fallback { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; border-radius: inherit; }
.cy-hero-main { flex: 1; min-width: 0; }
.cy-hero-titlerow { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.cy-hero-name { font-size: 26px; font-weight: 700; color: var(--cy-text); margin: 0; }
.cy-hero-sub { margin: 8px 0 4px; color: #5b6472; font-size: 15px; line-height: 1.6; }
.cy-hero-meta { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 10px; color: #6b7280; font-size: 13px; }
.cy-hero-meta b { color: var(--cy-text); font-weight: 600; }
.cy-hero-actions { display: flex; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.cy-heat-pill { display: inline-flex; align-items: center; gap: 5px; background: var(--cy-surface-alt); border-radius: 20px; padding: 5px 12px; font-size: 13px; color: #6b7280; }
.cy-tabs { display: flex; gap: 6px; margin: 26px 0 18px; border-bottom: 1px solid var(--cy-border); flex-wrap: wrap; }
.cy-tab { padding: 11px 18px; font-size: 15px; color: #6b7280; cursor: pointer; border: none; background: none; position: relative; font-weight: 500; }
.cy-tab.active { color: var(--cy-primary); font-weight: 700; }
.cy-tab.active::after { content: ''; position: absolute; left: 12px; right: 12px; bottom: -1px; height: 3px; background: var(--cy-primary); border-radius: 3px; }
.cy-panel { display: none; animation: cyfade .25s ease; }
.cy-panel.active { display: block; }
@keyframes cyfade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.cy-info-block { background: var(--cy-surface); border: 1px solid var(--cy-border); border-radius: 14px; padding: 22px 24px; margin-bottom: 18px; }
.cy-info-block h3 { font-size: 17px; margin: 0 0 14px; color: var(--cy-text); display: flex; align-items: center; gap: 8px; }
.cy-info-block p { margin: 0; color: #4b5563; line-height: 1.8; font-size: 15px; }
.cy-ul { margin: 0; padding-left: 20px; color: #4b5563; line-height: 1.9; font-size: 15px; }
.cy-ul li { margin-bottom: 4px; }
.cy-kv { display: grid; grid-template-columns: 120px 1fr; gap: 10px 16px; font-size: 15px; }
.cy-kv dt { color: #9aa3af; }
.cy-kv dd { margin: 0; color: #4b5563; }
.cy-shots { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.cy-shot { border: 1px solid var(--cy-border); border-radius: 12px; overflow: hidden; background: var(--cy-surface-alt); aspect-ratio: 16 / 10; display: flex; align-items: center; justify-content: center; color: #b6bcc6; font-size: 13px; }
.cy-shot img { width: 100%; height: 100%; object-fit: cover; }
.cy-side { display: flex; flex-direction: column; gap: 18px; position: sticky; top: 18px; }
.cy-side-card { background: var(--cy-surface); border: 1px solid var(--cy-border); border-radius: 14px; padding: 20px; }
.cy-side-card h4 { margin: 0 0 14px; font-size: 15px; color: var(--cy-text); }
.cy-rel-item { display: flex; gap: 10px; padding: 10px 0; border-bottom: 1px dashed var(--cy-border); align-items: center; }
.cy-rel-item:last-child { border-bottom: none; }
.cy-rel-thumb { width: 40px; height: 40px; border-radius: 9px; background: var(--cy-primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; flex: 0 0 40px; font-size: 15px; overflow: hidden; }
.cy-rel-thumb img { width: 100%; height: 100%; object-fit: cover; }
.cy-rel-item a { color: var(--cy-text); text-decoration: none; font-size: 14px; font-weight: 500; }
.cy-rel-item a:hover { color: var(--cy-primary); }
.cy-rel-sub { font-size: 12px; color: #9aa3af; }
.cy-score-top { display: flex; align-items: center; gap: 16px; margin-bottom: 16px; }
.cy-score-num { font-size: 34px; font-weight: 800; color: var(--cy-primary); line-height: 1; }
.cy-score-num small { font-size: 13px; color: #9aa3af; font-weight: 500; }
.cy-bars { display: flex; flex-direction: column; gap: 9px; }
.cy-bar-row { font-size: 13px; }
.cy-bar-label { display: flex; justify-content: space-between; color: #6b7280; margin-bottom: 4px; }
.cy-bar-track { height: 7px; background: var(--cy-surface-alt); border-radius: 6px; overflow: hidden; }
.cy-bar-fill { height: 100%; background: var(--cy-primary); border-radius: 6px; }
.cy-tagrow { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 6px; }
.cy-tag { font-size: 12px; background: var(--cy-surface-alt); color: #5b6472; padding: 4px 10px; border-radius: 20px; }
.cy-review-card { border: 1px solid var(--cy-border); border-radius: 12px; padding: 16px; margin-bottom: 12px; }
.cy-review-card h4 { margin: 0 0 6px; font-size: 15px; color: var(--cy-text); }
.cy-review-meta { font-size: 12px; color: #9aa3af; margin-bottom: 8px; }
.cy-review-score { font-weight: 700; color: var(--cy-primary); }
.cy-review-content { font-size: 14px; color: #4b5563; line-height: 1.7; margin: 0 0 8px; }
.cy-pros-cons .pros { color: var(--cy-teal); font-size: 13px; }
.cy-pros-cons .cons { color: var(--cy-coral); font-size: 13px; }
.cy-tutorial-item { display: flex; gap: 12px; padding: 14px; border: 1px solid var(--cy-border); border-radius: 12px; margin-bottom: 10px; align-items: center; }
.cy-tutorial-icon { width: 42px; height: 42px; border-radius: 10px; background: var(--cy-primary-light); color: var(--cy-primary); display: flex; align-items: center; justify-content: center; font-size: 20px; flex: 0 0 42px; }
.cy-tutorial-item a { color: var(--cy-text); text-decoration: none; font-weight: 500; }
.cy-tutorial-item a:hover { color: var(--cy-primary); }
.cy-tutorial-sub { font-size: 12px; color: #9aa3af; }
@media (max-width: 900px) {
  .cy-detail-grid { grid-template-columns: 1fr; }
  .cy-side { position: static; }
  .cy-hero-card { flex-direction: column; }
  .cy-hero-logo { width: 72px; height: 72px; flex-basis: 72px; font-size: 30px; }
}