/* 品杰工具站 - 云上工具服务站 */
/* 移动端优先响应式样式 */

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #0f172a;
  --text-2: #64748b;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 4px 12px rgba(0,0,0,.04);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ===== Header ===== */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1100px; margin: 0 auto; padding: 0 16px;
  height: 60px; display: flex; align-items: center; justify-content: space-between;
}
.logo { font-weight: 700; font-size: 18px; color: var(--text); display: flex; align-items: center; gap: 8px; }
.logo .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--primary); display: inline-block; }
.nav { display: flex; gap: 20px; align-items: center; }
.nav a { color: var(--text-2); font-size: 14px; }
.nav a:hover { color: var(--primary); }
.nav .btn-primary { font-size: 14px; }

/* 移动端菜单 */
.nav-toggle { display: none; background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text); }

/* ===== Buttons ===== */
.btn {
  display: inline-block; padding: 10px 20px; border-radius: 8px;
  font-size: 15px; font-weight: 500; cursor: pointer; border: none;
  transition: all .15s ease; text-align: center;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-lg { padding: 14px 28px; font-size: 16px; }

/* ===== Hero ===== */
.hero {
  text-align: center; padding: 72px 16px 56px;
  background: linear-gradient(180deg, #eff6ff 0%, var(--bg) 100%);
}
.hero h1 { font-size: clamp(28px, 6vw, 48px); font-weight: 800; letter-spacing: -.5px; }
.hero h1 span { color: var(--primary); }
.hero p { color: var(--text-2); font-size: clamp(15px, 3vw, 18px); margin: 16px auto 32px; max-width: 560px; }
.hero .cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ===== Section ===== */
.section { max-width: 1100px; margin: 0 auto; padding: 48px 16px; }
.section-title { font-size: 24px; font-weight: 700; text-align: center; margin-bottom: 8px; }
.section-sub { text-align: center; color: var(--text-2); margin-bottom: 32px; }

/* ===== Feature / Card grid ===== */
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow); transition: transform .15s ease;
}
.card:hover { transform: translateY(-2px); }
.card .icon { font-size: 26px; margin-bottom: 12px; }
.card h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.card p { font-size: 13px; color: var(--text-2); }
.card .tag {
  display: inline-block; font-size: 12px; padding: 2px 10px; border-radius: 999px;
  background: #eff6ff; color: var(--primary); margin-top: 10px;
}
.card .tag.free { background: #f0fdf4; color: #16a34a; }
.card .tag.sub { background: #fdf4ff; color: #a21caf; }

/* ===== Steps ===== */
.steps { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.step { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.step .num { font-size: 20px; font-weight: 800; color: var(--primary); }
.step h3 { font-size: 15px; margin: 8px 0 4px; }
.step p { font-size: 13px; color: var(--text-2); }

/* ===== Pricing ===== */
.price-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.price-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; }
.price-card.hot { border-color: var(--primary); box-shadow: 0 4px 16px rgba(37,99,235,.12); }
.price-card .name { font-size: 16px; font-weight: 600; }
.price-card .price { font-size: 28px; font-weight: 800; margin: 12px 0; }
.price-card .price small { font-size: 13px; color: var(--text-2); font-weight: 400; }
.price-card ul { list-style: none; flex: 1; margin: 8px 0 16px; }
.price-card li { font-size: 13px; color: var(--text-2); padding: 4px 0; }
.price-card li::before { content: "✓ "; color: var(--primary); }

/* ===== Tool list ===== */
.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 24px; justify-content: center; }
.filter-btn { padding: 8px 16px; border-radius: 999px; border: 1px solid var(--border); background: var(--card); font-size: 13px; cursor: pointer; color: var(--text-2); }
.filter-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ===== Docs / code ===== */
.code-block {
  background: #0f172a; color: #e2e8f0; border-radius: 10px;
  padding: 16px; font-family: "SF Mono", Consolas, monospace; font-size: 13px;
  overflow-x: auto; margin: 12px 0;
}
.doc-section { margin-bottom: 32px; }
.doc-section h2 { font-size: 20px; margin-bottom: 12px; }
.doc-section h3 { font-size: 16px; margin: 16px 0 8px; }
.doc-section p, .doc-section li { font-size: 14px; color: var(--text-2); }
.doc-section table { width: 100%; border-collapse: collapse; font-size: 13px; margin: 12px 0; }
.doc-section th, .doc-section td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.doc-section th { background: #f1f5f9; }

/* ===== Console / form ===== */
.console-wrap { max-width: 480px; margin: 0 auto; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; margin-bottom: 6px; }
.form-group input {
  width: 100%; padding: 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 15px;
}
.form-group input:focus { outline: none; border-color: var(--primary); }

/* ===== Footer ===== */
.footer { border-top: 1px solid var(--border); padding: 32px 16px; text-align: center; color: var(--text-2); font-size: 13px; }
.footer a { color: var(--text-2); margin: 0 8px; }
.footer a:hover { color: var(--primary); }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav { display: none; position: absolute; top: 60px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px; gap: 16px; border-bottom: 1px solid var(--border); }
  .nav.open { display: flex; }
  .nav-toggle { display: block; }
  .hero { padding: 48px 16px 40px; }
  .section { padding: 32px 16px; }
  .grid, .steps, .price-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .grid, .steps, .price-grid { grid-template-columns: 1fr; }
  .btn-lg { width: 100%; }
  .hero .cta { flex-direction: column; width: 100%; }
  .hero .cta .btn { width: 100%; }
}

/* ===== Utility ===== */
.text-center { text-align: center; }
.mt-24 { margin-top: 24px; }
.muted { color: var(--text-2); }
.hidden { display: none !important; }