/* ===================================================================
   fuyezhifu.cn — 副业致富 · 普通人搞钱实战基地
   设计系统：专业、严谨、移动优先、零依赖
   =================================================================== */

:root {
  --bg: #ffffff;
  --surface: #f7f8fa;
  --surface-2: #eef1f5;
  --text: #16202c;
  --muted: #5b6470;
  --faint: #8a93a0;
  --border: #e4e8ed;
  --primary: #16335b;      /* 深蓝 主色：信任、专业 */
  --primary-soft: #eaf0f7;
  --accent: #e8590c;       /* 橙 强调：行动、搞钱 */
  --accent-soft: #fdeee3;
  --ok: #2f9e44;
  --maxw: 880px;
  --readw: 760px;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(16,24,40,.05), 0 6px 20px rgba(16,24,40,.05);
  --shadow-sm: 0 1px 2px rgba(16,24,40,.06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.read { max-width: var(--readw); margin: 0 auto; padding: 0 20px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.86);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header .bar {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.brand { font-weight: 800; letter-spacing: -.3px; color: var(--primary); font-size: 19px; }
.brand span { color: var(--accent); }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
  color: var(--muted); font-size: 14.5px; font-weight: 600;
  padding: 7px 11px; border-radius: 8px;
}
.nav a:hover { background: var(--surface); color: var(--primary); text-decoration: none; }
.nav a.active { color: var(--primary); background: var(--primary-soft); }
.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero { padding: 64px 0 40px; background: linear-gradient(180deg,#fbfcfe 0%, #fff 100%); }
.hero .tag {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .4px;
  color: var(--accent); background: var(--accent-soft);
  padding: 5px 12px; border-radius: 100px; margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(28px, 5vw, 44px); line-height: 1.18; margin: 0 0 16px;
  letter-spacing: -.6px; font-weight: 850;
}
.hero p.lead { font-size: clamp(16px,2.2vw,19px); color: var(--muted); margin: 0 0 26px; max-width: 640px; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 15px; padding: 12px 20px;
  border-radius: 10px; border: 1px solid transparent; cursor: pointer;
  transition: transform .06s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: #0f2747; color: #fff; }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #cf4f08; color: #fff; }
.btn-ghost { background: #fff; color: var(--primary); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface); }

/* ---------- 栏目卡片 ---------- */
.section { padding: 44px 0; }
.section h2 { font-size: 24px; letter-spacing: -.3px; margin: 0 0 6px; }
.section .sub { color: var(--muted); margin: 0 0 26px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.card {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow-sm); transition: border-color .2s, box-shadow .2s, transform .06s;
}
.card:hover { border-color: #c9d4e2; box-shadow: var(--shadow); }
.card .kicker { font-size: 12.5px; font-weight: 700; color: var(--accent); letter-spacing: .4px; }
.card h3 { margin: 8px 0 8px; font-size: 19px; }
.card h3 a { color: var(--text); }
.card p { margin: 0; color: var(--muted); font-size: 14.5px; }
.card .meta { margin-top: 14px; font-size: 13px; color: var(--faint); }

/* ---------- 文章列表 ---------- */
.post-list { display: flex; flex-direction: column; gap: 14px; }
.post-item {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 18px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); transition: border-color .2s, box-shadow .2s;
}
.post-item:hover { border-color: #c9d4e2; box-shadow: var(--shadow); }
.post-item .num {
  flex: 0 0 42px; height: 42px; border-radius: 10px; background: var(--primary-soft);
  color: var(--primary); font-weight: 800; display: grid; place-items: center; font-size: 16px;
}
.post-item .body h3 { margin: 0 0 5px; font-size: 17.5px; }
.post-item .body h3 a { color: var(--text); }
.post-item .body p { margin: 0; color: var(--muted); font-size: 14px; }
.post-item .body .meta { margin-top: 8px; font-size: 12.5px; color: var(--faint); }

/* ---------- 精选条 ---------- */
.feature { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* ---------- 订阅模块 ---------- */
.subscribe {
  background: var(--primary); color: #fff; border-radius: var(--radius);
  padding: 34px 30px; margin: 8px 0 0;
}
.subscribe h3 { margin: 0 0 6px; font-size: 22px; color: #fff; }
.subscribe p { margin: 0 0 18px; color: #c7d3e2; font-size: 15px; }
.sub-form { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.sub-form input[type=email] {
  flex: 1 1 240px; min-width: 0; padding: 12px 14px; border-radius: 10px;
  border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.08);
  color: #fff; font-size: 15px;
}
.sub-form input::placeholder { color: #aebccd; }
.sub-form .btn-accent { border: none; }
.sub-note { margin-top: 12px; font-size: 12.5px; color: #9fb0c6; }
.cf-turnstile { transform: scale(.9); transform-origin: left; margin: 4px 0; }

/* ---------- 文章正文 ---------- */
.article { padding: 40px 0 10px; }
.article .kicker { font-size: 13px; font-weight: 700; color: var(--accent); letter-spacing: .4px; }
.article h1 { font-size: clamp(26px,4vw,36px); line-height: 1.2; margin: 10px 0 14px; letter-spacing: -.4px; }
.article .byline { color: var(--faint); font-size: 14px; margin-bottom: 28px; border-bottom: 1px solid var(--border); padding-bottom: 18px; }
.article h2 { font-size: 22px; margin: 34px 0 12px; letter-spacing: -.2px; }
.article h3 { font-size: 18px; margin: 26px 0 8px; }
.article p { margin: 14px 0; }
.article ul, .article ol { margin: 14px 0; padding-left: 22px; }
.article li { margin: 7px 0; }
.article blockquote {
  margin: 20px 0; padding: 14px 18px; border-left: 4px solid var(--accent);
  background: var(--accent-soft); border-radius: 0 10px 10px 0; color: #7a3a12; font-size: 15.5px;
}
.article table {
  width: 100%; border-collapse: collapse; margin: 22px 0; font-size: 14.5px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 10px; overflow: hidden;
}
.article th, .article td { padding: 11px 13px; text-align: left; border-bottom: 1px solid var(--border); }
.article th { background: var(--surface); font-weight: 700; color: var(--primary); }
.article tr:last-child td { border-bottom: none; }
.article code { font-family: var(--mono); background: var(--surface-2); padding: 2px 6px; border-radius: 5px; font-size: 13.5px; }
.article pre { background: #0f1b2d; color: #e6edf6; padding: 16px; border-radius: 10px; overflow-x: auto; font-size: 13.5px; }
.article pre code { background: none; color: inherit; padding: 0; }
.callout {
  background: var(--primary-soft); border: 1px solid #cdddF0; border-radius: 10px;
  padding: 16px 18px; margin: 22px 0; font-size: 15px;
}
.callout b { color: var(--primary); }

/* ---------- 工具箱 / 资源 ---------- */
.resource {
  display: flex; gap: 16px; align-items: center; padding: 20px;
  border: 1px solid var(--border); border-radius: var(--radius); margin: 14px 0; background: var(--bg);
}
.resource .ic { flex: 0 0 48px; height: 48px; border-radius: 12px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; font-size: 22px; font-weight: 800; }
.resource .body h3 { margin: 0 0 4px; font-size: 17px; }
.resource .body p { margin: 0; color: var(--muted); font-size: 14px; }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 30px 0 44px; margin-top: 40px; color: var(--muted); font-size: 13.5px; }
.site-footer .cols { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); }
.site-footer .copy { margin-top: 18px; color: var(--faint); }

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
  .nav { display: none; }
  .nav.open { display: flex; position: absolute; top: 60px; left: 0; right: 0;
    background: #fff; flex-direction: column; padding: 10px 20px; border-bottom: 1px solid var(--border); }
  .nav-toggle { display: inline-grid; place-items: center; width: 40px; height: 40px;
    background: none; border: 1px solid var(--border); border-radius: 9px; cursor: pointer; }
  .hero { padding: 44px 0 30px; }
}

/* 站内搜索框 */
.search-box { width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; font-size: 15px; margin-bottom: 20px; }
#search-results { display: none; }
#search-results.active { display: block; }
.pager { margin: 30px 0; text-align: center; color: var(--faint); font-size: 14px; }

/* ---------- 关键词库查询工具 ---------- */
.kw-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.kw-stat {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 12px; text-align: center;
}
.kw-stat b { display: block; font-size: 26px; color: var(--primary); letter-spacing: -.5px; line-height: 1.3; }
.kw-stat span { font-size: 13px; color: var(--muted); }

.kw-search { display: flex; gap: 10px; margin-bottom: 18px; }
.kw-input {
  flex: 1; padding: 14px 16px; font-size: 16px; font-family: var(--font);
  border: 1px solid var(--border); border-radius: 10px; background: var(--bg); color: var(--text);
}
.kw-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.kw-btn { border: none; }

.kw-filters { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 16px; }
.kw-filters label { display: flex; flex-direction: column; gap: 6px; font-size: 12.5px; font-weight: 700; color: var(--muted); }
.kw-filters select {
  padding: 9px 12px; border: 1px solid var(--border); border-radius: 9px;
  background: var(--bg); color: var(--text); font-size: 14.5px; min-width: 118px; font-family: var(--font);
}

.kw-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 20px; }
.kw-chips button {
  padding: 8px 14px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--bg); color: var(--muted); font-size: 13.5px; cursor: pointer; font-family: var(--font);
}
.kw-chips button.on { background: var(--primary); border-color: var(--primary); color: #fff; }

.kw-count { font-size: 14px; color: var(--muted); margin-bottom: 14px; }

.kw-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.kw-item {
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 14px 16px; background: var(--bg); transition: border-color .2s, box-shadow .2s;
}
.kw-item:hover { border-color: #c9d4e2; box-shadow: var(--shadow-sm); }
.kw-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px; }
.kw-term { font-size: 16px; font-weight: 700; color: var(--text); word-break: break-word; }
.kw-zh { font-size: 13px; color: var(--muted); }
.kw-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.pill {
  display: inline-block; font-size: 11.5px; padding: 2px 9px; border-radius: 999px;
  background: var(--surface-2); color: var(--muted); font-weight: 600;
}
.pill.p-up { background: #e6f4ea; color: #1e7e34; }
.pill.p-down { background: #fdeaea; color: #c0392b; }
.pill.p-flat { background: var(--surface-2); color: var(--muted); }
.pill.c-good { background: #e7f0ff; color: #1b4f9c; }
.pill.c-bad { background: #fdeaea; color: #c0392b; }
.pill.c-mid { background: var(--surface-2); color: var(--muted); }
.pill.p-plat { background: var(--primary-soft); color: var(--primary); }
.pill.p-cat { background: var(--accent-soft); color: #a34b06; }

.kw-heat { display: flex; align-items: center; gap: 10px; margin-top: 10px; }
.kw-bar { flex: 1; height: 6px; background: var(--surface-2); border-radius: 999px; overflow: hidden; }
.kw-bar i { display: block; height: 100%; background: linear-gradient(90deg, #e8590c, #f59f00); }
.kw-heat b { font-size: 13px; color: var(--accent); }

.kw-empty { padding: 28px; text-align: center; color: var(--muted); border: 1px dashed var(--border); border-radius: var(--radius); }
.kw-more-wrap { text-align: center; margin-top: 22px; }

@media (max-width: 720px) {
  .kw-stats { grid-template-columns: repeat(2, 1fr); }
  .kw-list { grid-template-columns: 1fr; }
  .kw-search { flex-direction: column; }
}