/* 呼噜专注官网 —— 瑞士现代极简风格 */
:root {
  --ink: #1a1a1a;
  --paper: #faf9f6;
  --accent: #e05b3a;
  --accent-dark: #c44a2c;
  --muted: #6b6b6b;
  --line: #e3e0da;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.8;
}
a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--accent); }

/* 布局 */
.container { max-width: 960px; margin: 0 auto; padding: 0 24px; }
header.site-header {
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
}
header.site-header .container {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}
.logo { font-size: 20px; font-weight: 700; letter-spacing: 0.05em; }
nav a { margin-left: 20px; font-size: 14px; color: var(--muted); }
nav a:hover { color: var(--accent); }

/* Hero */
.hero { padding: 80px 0 56px; }
.hero h1 { font-size: 46px; font-weight: 800; letter-spacing: 0.02em; }
.hero .slogan { margin-top: 16px; font-size: 20px; color: var(--muted); }
.hero .meta { margin-top: 10px; font-size: 14px; color: var(--muted); }
.hero .meta strong { color: var(--accent); font-weight: 600; }
.hero-cta { margin-top: 32px; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  background: var(--accent); color: #fff;
  padding: 14px 36px; border-radius: 999px;
  font-size: 17px; font-weight: 600;
  transition: background 0.2s;
}
.btn:hover { background: var(--accent-dark); color: #fff; }
.btn-note { font-size: 13px; color: var(--muted); }

/* 截图墙 */
section.screenshots { padding: 24px 0 64px; }
.shot-strip {
  display: flex; gap: 20px;
  overflow-x: auto; padding: 8px 4px 20px;
  scroll-snap-type: x mandatory;
}
.shot {
  flex: 0 0 auto; scroll-snap-align: center;
  text-align: center;
}
.shot img {
  height: 480px; width: auto;
  border-radius: 20px;
  border: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(26, 26, 26, 0.08);
}
.shot figcaption { margin-top: 12px; font-size: 13px; color: var(--muted); }

/* 功能区块 */
section.features { padding: 32px 0 72px; }
section.features > h2, section.screenshots > h2, section.dl > h2 {
  font-size: 26px; font-weight: 800;
}
.feature-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px; margin-top: 32px;
}
.feature h3 {
  font-size: 18px; font-weight: 700;
  border-left: 3px solid var(--accent); padding-left: 12px;
}
.feature p { margin-top: 10px; font-size: 14px; color: var(--muted); }

/* 下载区块 */
section.dl { padding: 32px 0 88px; }
.dl-panel {
  margin-top: 32px; padding: 40px;
  border: 1px solid var(--line); border-radius: 24px;
  background: #fff;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.dl-panel .dl-info h3 { font-size: 20px; font-weight: 700; }
.dl-panel .dl-info p { font-size: 14px; color: var(--muted); margin-top: 6px; }
.dl-steps { margin-top: 20px; font-size: 14px; color: var(--muted); }
.dl-steps li { margin: 4px 0; }

/* 协议/正文页 */
.doc { padding: 56px 0 96px; }
.doc h1 { font-size: 32px; font-weight: 800; margin-bottom: 8px; }
.doc .updated { font-size: 13px; color: var(--muted); margin-bottom: 40px; }
.doc h2 { font-size: 20px; font-weight: 700; margin: 36px 0 12px; }
.doc p, .doc li { font-size: 15px; color: #333; }
.doc ul, .doc ol { padding-left: 24px; margin: 8px 0; }
.doc li { margin: 4px 0; }

/* 页脚 */
footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 32px 0 48px;
  font-size: 13px; color: var(--muted);
}
footer.site-footer .container { text-align: center; }
footer.site-footer a { color: var(--muted); }
footer.site-footer a:hover { color: var(--accent); }

@media (max-width: 640px) {
  .hero h1 { font-size: 34px; }
  .shot img { height: 380px; }
  .dl-panel { padding: 28px; }
}