/* ============================================================
   Huanie 欢页 — 响应式内容站样式
   设计：移动优先 / 浅色主题 / 高对比度 / 无障碍友好
   ============================================================ */

:root {
  /* 颜色 */
  --c-bg: #ffffff;
  --c-surface: #f6f8fb;
  --c-surface-2: #eef2f7;
  --c-text: #1a2233;
  --c-text-soft: #51607a;
  --c-primary: #2563eb;       /* 主色：蓝 */
  --c-primary-dark: #1d4ed8;
  --c-accent: #f97316;        /* 强调：橙 */
  --c-border: #e2e8f0;
  --c-focus: #2563eb;

  /* 间距与圆角 */
  --space: 1rem;
  --radius: 14px;
  --radius-sm: 10px;
  --maxw: 1120px;

  /* 字体 */
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;

  --shadow: 0 6px 24px rgba(20, 35, 70, 0.08);
  --shadow-hover: 0 12px 32px rgba(20, 35, 70, 0.14);
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.7;
  font-size: 16px;
}

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

a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { line-height: 1.25; color: var(--c-text); margin: 0 0 .6em; }

p { margin: 0 0 1em; }

/* 焦点可见（无障碍） */
:focus-visible {
  outline: 3px solid var(--c-focus);
  outline-offset: 2px;
  border-radius: 4px;
}

/* 跳转到主内容（屏幕阅读器 / 键盘用户） */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--c-primary);
  color: #fff;
  padding: .6em 1em;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- 容器 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--c-border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 1rem;
}
.brand {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--c-text);
  display: flex;
  align-items: center;
  gap: .5rem;
}
.brand .dot { color: var(--c-accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--c-text-soft);
  font-weight: 600;
  padding: .4em .2em;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] { color: var(--c-primary); text-decoration: none; }

/* 汉堡按钮（移动端） */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: .5rem;
  cursor: pointer;
  color: var(--c-text);
}
.nav-toggle svg { width: 22px; height: 22px; display: block; }

/* ---------- Hero ---------- */
.hero {
  padding: clamp(3rem, 8vw, 6rem) 0 clamp(2rem, 5vw, 3.5rem);
  background: linear-gradient(180deg, var(--c-surface) 0%, #fff 100%);
}
.hero h1 {
  font-size: clamp(1.9rem, 5vw, 3.2rem);
  letter-spacing: -.02em;
}
.hero .lead {
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  color: var(--c-text-soft);
  max-width: 38ch;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.5rem; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4em;
  padding: .75em 1.4em;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn-primary { background: var(--c-primary); color: #fff; }
.btn-primary:hover { background: var(--c-primary-dark); text-decoration: none; transform: translateY(-1px); }
.btn-ghost { background: #fff; color: var(--c-primary); border-color: var(--c-border); }
.btn-ghost:hover { text-decoration: none; border-color: var(--c-primary); }

/* ---------- 区块 ---------- */
.section { padding: clamp(2.5rem, 6vw, 4.5rem) 0; }
.section-title { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
.section-sub { color: var(--c-text-soft); margin-top: -.2em; margin-bottom: 2rem; }

/* ---------- 文章卡片网格 ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.card {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.card .thumb {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--c-surface-2), var(--c-surface));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-soft);
  font-size: .9rem;
}
.card .body { padding: 1.1rem 1.2rem 1.3rem; display: flex; flex-direction: column; gap: .5rem; flex: 1; }
.card .tag {
  align-self: flex-start;
  font-size: .75rem;
  font-weight: 700;
  color: var(--c-primary);
  background: var(--c-surface-2);
  padding: .2em .7em;
  border-radius: 999px;
}
.card h3 { font-size: 1.15rem; margin: 0; }
.card p { color: var(--c-text-soft); font-size: .95rem; margin: 0; flex: 1; }
.card .more { font-weight: 700; font-size: .92rem; }

/* ---------- 广告位 ---------- */
.ad-slot {
  margin: 2rem 0;
  border: 1px dashed var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface);
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-soft);
  font-size: .85rem;
  text-align: center;
  padding: 1rem;
}
.ad-slot.leaderboard { min-height: 120px; }
.ad-slot.inline { min-height: 280px; }
.ad-slot small { display: block; opacity: .8; }

/* ---------- 特性列表 ---------- */
.features { display: grid; gap: 1.2rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.feature {
  background: var(--c-surface);
  border-radius: var(--radius);
  padding: 1.4rem;
}
.feature h3 { font-size: 1.1rem; }
.feature p { color: var(--c-text-soft); margin: 0; font-size: .95rem; }
.feature .ico { font-size: 1.6rem; }

/* ---------- CTA ---------- */
.cta {
  background: var(--c-primary);
  color: #fff;
  border-radius: calc(var(--radius) * 1.2);
  padding: clamp(2rem, 5vw, 3.5rem);
  text-align: center;
}
.cta h2 { color: #fff; }
.cta p { color: rgba(255,255,255,.85); max-width: 46ch; margin-inline: auto; }
.cta .btn-primary { background: #fff; color: var(--c-primary); }
.cta .btn-primary:hover { background: #eef2ff; }

/* ---------- 文章详情页 ---------- */
.article { max-width: 760px; margin-inline: auto; }
.article .meta { color: var(--c-text-soft); font-size: .9rem; margin-bottom: 1.5rem; }
.article h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.article h2 { margin-top: 2rem; }
.article p, .article li { color: #2a3346; }
.article blockquote {
  margin: 1.5rem 0;
  padding: .8rem 1.2rem;
  border-left: 4px solid var(--c-primary);
  background: var(--c-surface);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--c-text-soft);
}

/* ---------- 表单 ---------- */
.form-grid { display: grid; gap: 1rem; max-width: 520px; }
.field label { display: block; font-weight: 600; margin-bottom: .35rem; }
.field input, .field textarea {
  width: 100%;
  padding: .7em .9em;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  font: inherit;
  background: #fff;
}
.field input:focus, .field textarea:focus { border-color: var(--c-primary); outline: none; }
.form-note { color: var(--c-text-soft); font-size: .9rem; }

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--c-surface);
  border-top: 1px solid var(--c-border);
  padding: 2.5rem 0 1.5rem;
  margin-top: 3rem;
}
.footer-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1.5fr 1fr 1fr;
}
.footer-grid h4 { font-size: 1rem; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem; }
.footer-grid a { color: var(--c-text-soft); font-weight: 500; }
.footer-bottom {
  margin-top: 2rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--c-border);
  color: var(--c-text-soft);
  font-size: .88rem;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  justify-content: space-between;
}

/* ---------- 响应式：移动端导航 ---------- */
@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--c-border);
    padding: .5rem clamp(1rem, 4vw, 2rem) 1rem;
    box-shadow: var(--shadow);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { border-bottom: 1px solid var(--c-surface-2); }
  .nav-links a { display: block; padding: .9em 0; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* 减少动画（无障碍） */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ---------- 评测专属样式（review-specific） ---------- */
.rating {
  display: inline-block;
  font-weight: 800;
  color: var(--c-accent);
  margin: .2rem 0 .6rem;
}
.rating em { color: var(--c-text-soft); font-style: normal; font-weight: 600; margin-left: .3em; }

.rating-box {
  display: flex;
  gap: 1rem;
  align-items: center;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 1.1rem 1.3rem;
  margin: 1.2rem 0 1.6rem;
}
.rating-box .score {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--c-primary);
  line-height: 1;
  white-space: nowrap;
}
.rating-box .score span { font-size: 1rem; color: var(--c-text-soft); font-weight: 600; }
.rating-box strong { display: block; margin-bottom: .2rem; }
.rating-box p { margin: 0; color: var(--c-text-soft); font-size: .95rem; }

.proscons { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 1.5rem 0; }
.proscons .pros, .proscons .cons {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.2rem;
  background: var(--c-surface);
}
.proscons h3 { font-size: 1.05rem; margin-top: 0; }
.proscons ul { margin: 0; padding-left: 1.1rem; }
.proscons li { margin-bottom: .4rem; color: var(--c-text-soft); }

.table-wrap { overflow-x: auto; margin: 1.5rem 0; }
.compare-table { width: 100%; border-collapse: collapse; min-width: 520px; font-size: .95rem; }
.compare-table th, .compare-table td { border: 1px solid var(--c-border); padding: .7rem .9rem; text-align: left; }
.compare-table thead th { background: var(--c-primary); color: #fff; }
.compare-table tbody tr:nth-child(even) { background: var(--c-surface); }

.disclaimer-note {
  margin-top: 2rem;
  padding: .9rem 1.1rem;
  border: 1px dashed var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface);
  color: var(--c-text-soft);
  font-size: .9rem;
}

@media (max-width: 620px) {
  .proscons { grid-template-columns: 1fr; }
  .rating-box { flex-direction: column; align-items: flex-start; }
}