/* 简谱K歌官网：单页，红粉色调，跟 App 图标一致 */
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.7 -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; color: #33262a; background: #fff; }
a { color: #c81e4f; }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }

.nav { position: sticky; top: 0; background: rgba(255,255,255,.92); border-bottom: 1px solid #f3d9e0; z-index: 1; }
.nav-in { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 18px; color: #33262a; text-decoration: none; }
.brand img { border-radius: 8px; }
.nav nav a { margin-left: 20px; color: #5c4a50; text-decoration: none; }
.nav nav a:hover, .nav nav a:focus-visible { color: #c81e4f; }

.hero { background: linear-gradient(135deg, #ff6a88, #e8265a); color: #fff; text-align: center; padding: 64px 0 56px; }
.hero-icon { border-radius: 28px; box-shadow: 0 10px 30px rgba(120,0,40,.3); }
.hero h1 { font-size: 40px; margin: 18px 0 6px; }
.lead { font-size: 18px; margin: 0 auto; max-width: 560px; }
.tags span { display: inline-block; margin: 14px 4px 0; padding: 2px 12px; border: 1px solid rgba(255,255,255,.7); border-radius: 999px; font-size: 14px; }

h2 { font-size: 26px; margin: 48px 0 18px; text-align: center; }
.grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.grid li { background: #fff5f7; border: 1px solid #f7d6df; border-radius: 14px; padding: 18px; }
.grid h3 { margin: 0 0 6px; font-size: 18px; color: #b3173f; }
.grid p { margin: 0; color: #5c4a50; }

.about { text-align: center; padding-bottom: 40px; }
.about p { max-width: 640px; margin: 8px auto; color: #5c4a50; }

.foot { margin-top: 40px; padding: 24px 0; background: #2b1e22; color: #d9c6cc; text-align: center; font-size: 14px; }
.foot p { margin: 4px 0; }
.foot a { color: #d9c6cc; }