/* QQ音乐网站样式 */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC",-apple-system,sans-serif;background:#f5f5f5;color:#333;line-height:1.6}
a{text-decoration:none;color:inherit}

/* 导航 */
.nav{background:linear-gradient(135deg,#1a1a2e,#16213e);padding:0 40px;display:flex;align-items:center;height:60px;position:sticky;top:0;z-index:100;box-shadow:0 2px 10px rgba(0,0,0,.3)}
.nav-logo{display:flex;align-items:center}
.nav-logo span{color:#fff;font-weight:300;margin-left:4px}
.nav-links{display:flex;gap:0;margin-left:50px;list-style:none}
.nav-links a{color:#ccc;padding:0 20px;height:60px;display:flex;align-items:center;font-size:15px;transition:.2s;border-bottom:3px solid transparent}
.nav-links a:hover,.nav-links a.active{color:#31c27c;border-bottom-color:#31c27c}
.nav-cta{margin-left:auto}
.btn{display:inline-block;padding:10px 28px;border-radius:25px;font-size:14px;font-weight:600;cursor:pointer;transition:.3s;border:none}
.btn-primary{background:#31c27c;color:#fff}
.btn-primary:hover{background:#2aad6d;transform:translateY(-1px);box-shadow:0 4px 15px rgba(49,194,124,.4)}
.btn-outline{background:transparent;border:2px solid #31c27c;color:#31c27c}
.btn-outline:hover{background:#31c27c;color:#fff}
.btn-light{background:#fff;color:#31c27c}
.btn-light:hover{background:#e8f8f0}

/* Hero */
.hero{background:linear-gradient(135deg,#0f0f23 0%,#1a1a3e 40%,#0a2a1a 100%);padding:80px 40px;display:flex;align-items:center;justify-content:center;gap:60px;min-height:450px;overflow:hidden;position:relative}
.hero::before{content:'';position:absolute;top:-100px;right:-100px;width:400px;height:400px;border-radius:50%;background:radial-gradient(circle,rgba(49,194,124,.15),transparent 70%)}
.hero::after{content:'';position:absolute;bottom:-80px;left:10%;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(49,194,124,.1),transparent 70%)}
.hero-text{flex:none;z-index:1;max-width:500px}
.hero-text h1{font-size:44px;color:#fff;line-height:1.2;margin-bottom:16px}
.hero-text h1 span{color:#31c27c}
.hero-text p{font-size:17px;color:#aaa;margin-bottom:30px;line-height:1.7}
.hero-btns{display:flex;gap:16px}
.hero-visual{flex:none;display:flex;justify-content:center;align-items:center;z-index:1}
.hero-card{width:300px;height:340px;background:linear-gradient(145deg,#1e1e3a,#252550);border-radius:20px;padding:30px;border:1px solid rgba(49,194,124,.2);position:relative}
.hero-card .note{width:60px;height:60px;border-radius:50%;background:linear-gradient(135deg,#31c27c,#1db954);margin:0 auto 20px;display:flex;align-items:center;justify-content:center;font-size:28px;color:#fff;box-shadow:0 8px 25px rgba(49,194,124,.3)}
.hero-card .bars{display:flex;align-items:flex-end;gap:6px;height:80px;justify-content:center;margin:20px 0}
.hero-card .bar{width:14px;border-radius:7px;background:linear-gradient(180deg,#31c27c,#1a8a4a);animation:barAnim 1.2s ease-in-out infinite alternate}
.hero-card .bar:nth-child(1){height:40px;animation-delay:0s}
.hero-card .bar:nth-child(2){height:60px;animation-delay:.15s}
.hero-card .bar:nth-child(3){height:35px;animation-delay:.3s}
.hero-card .bar:nth-child(4){height:70px;animation-delay:.45s}
.hero-card .bar:nth-child(5){height:50px;animation-delay:.6s}
.hero-card .bar:nth-child(6){height:45px;animation-delay:.75s}
.hero-card .bar:nth-child(7){height:65px;animation-delay:.9s}
@keyframes barAnim{0%{transform:scaleY(.6)}100%{transform:scaleY(1)}}
.hero-card .card-title{color:#fff;font-size:16px;text-align:center;margin-top:10px}
.hero-card .card-sub{color:#888;font-size:12px;text-align:center;margin-top:4px}

/* 统计条 */
.stats-bar{display:flex;justify-content:center;gap:60px;padding:30px 40px;background:#fff;border-bottom:1px solid #eee}
.stat-item{text-align:center}
.stat-num{font-size:32px;font-weight:700;color:#31c27c}
.stat-label{font-size:13px;color:#999;margin-top:4px}

/* 区块通用 */
.section{padding:60px 40px;max-width:1200px;margin:0 auto}
.section h2{font-size:28px;text-align:center;margin-bottom:8px;color:#1a1a2e}
.section .subtitle{text-align:center;color:#999;font-size:15px;margin-bottom:40px}

/* 功能卡片 */
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature-card{background:#fff;border-radius:12px;padding:30px 24px;text-align:center;transition:.3s;border:1px solid #eee;cursor:pointer}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(0,0,0,.1);border-color:#31c27c}
.feature-icon{width:60px;height:60px;border-radius:50%;margin:0 auto 16px;display:flex;align-items:center;justify-content:center;font-size:26px}
.feature-icon.green{background:linear-gradient(135deg,#31c27c,#1db954);color:#fff}
.feature-icon.blue{background:linear-gradient(135deg,#4facfe,#00f2fe);color:#fff}
.feature-icon.purple{background:linear-gradient(135deg,#a18cd1,#fbc2eb);color:#fff}
.feature-icon.orange{background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff}
.feature-card h3{font-size:17px;margin-bottom:8px;color:#222}
.feature-card p{font-size:13px;color:#888;line-height:1.6}

/* 热门推荐 */
.hot-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.hot-item{background:#fff;border-radius:10px;overflow:hidden;transition:.3s;border:1px solid #eee;cursor:pointer}
.hot-item:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,.1)}
.hot-cover{height:140px;position:relative;display:flex;align-items:center;justify-content:center;font-size:40px;color:#fff}
.hot-cover.c1{background:linear-gradient(135deg,#667eea,#764ba2)}
.hot-cover.c2{background:linear-gradient(135deg,#f093fb,#f5576c)}
.hot-cover.c3{background:linear-gradient(135deg,#4facfe,#00f2fe)}
.hot-cover.c4{background:linear-gradient(135deg,#43e97b,#38f9d7)}
.hot-cover.c5{background:linear-gradient(135deg,#fa709a,#fee140)}
.hot-cover .play-icon{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.3);display:flex;align-items:center;justify-content:center;font-size:16px}
.hot-info{padding:12px}
.hot-info .title{font-size:14px;font-weight:600;color:#222;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hot-info .artist{font-size:12px;color:#999;margin-top:4px}

/* VIP区块 */
.vip-banner{background:linear-gradient(135deg,#1a1a2e,#0a1628);border-radius:16px;padding:50px 60px;display:flex;align-items:center;justify-content:space-between;margin-top:20px}
.vip-text h2{color:#fff;font-size:28px;text-align:left;margin-bottom:8px}
.vip-text p{color:#aaa;font-size:15px}
.vip-badge{font-size:14px;color:#d4a843;background:rgba(212,168,67,.15);padding:6px 16px;border-radius:20px;display:inline-block;margin-bottom:12px}

/* 页脚 */
.footer{background:#1a1a2e;color:#888;padding:40px 40px 20px;text-align:center}
.footer-links{display:flex;justify-content:center;gap:30px;margin-bottom:16px;flex-wrap:wrap}
.footer-links a{font-size:13px;transition:.2s}
.footer-links a:hover{color:#31c27c}
.footer p{font-size:12px;margin-top:8px}

/* 子页面通用 */
.page-header{background:linear-gradient(135deg,#1a1a2e,#16213e);padding:50px 40px;text-align:center;color:#fff}
.page-header h1{font-size:36px;margin-bottom:8px}
.page-header h1 span{color:#31c27c}
.page-header p{color:#aaa;font-size:16px}
.page-content{padding:50px 40px;max-width:1000px;margin:0 auto}

/* 下载页 */
.dl-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:20px;max-width:760px;margin-left:auto;margin-right:auto;align-items:stretch}
.dl-card{background:#fff;border-radius:14px;padding:36px 28px;text-align:center;border:1px solid #eee;transition:.3s;display:flex;flex-direction:column}
.dl-card:hover{transform:translateY(-4px);box-shadow:0 12px 35px rgba(0,0,0,.1)}
.dl-card.featured{border:2px solid #31c27c;position:relative}
.dl-card.featured::after{content:'推荐';position:absolute;top:12px;right:12px;background:#31c27c;color:#fff;font-size:11px;padding:3px 10px;border-radius:12px}
.dl-icon{font-size:48px;margin-bottom:16px}
.dl-card h3{font-size:20px;margin-bottom:6px;color:#222}
.dl-card .ver{font-size:13px;color:#999;margin-bottom:16px}
.dl-card .info{font-size:13px;color:#666;margin-bottom:20px;line-height:1.6}
.dl-btns{display:flex;gap:10px;justify-content:center}
.dl-btns .btn{flex:1;max-width:140px;padding:10px 16px;font-size:13px}
.btn-xs{padding:6px 10px;font-size:11px;border-radius:16px}
.dl-variants{display:flex;gap:12px;margin-top:auto;padding-top:8px}
.dl-variant-col{flex:1}
.dl-variant-label{display:block;font-size:11px;color:#999;margin-bottom:6px;font-weight:600;letter-spacing:.5px}
.dl-variant-col .btn{display:block;width:100%;margin-top:4px}
.dl-variant-col .btn+.btn{margin-top:5px}
.dl-requirements{background:#fff;border-radius:14px;padding:30px;margin-top:30px;border:1px solid #eee}
.dl-requirements h3{margin-bottom:12px;color:#222}
.dl-requirements ul{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.dl-requirements li{font-size:13px;color:#666;padding:6px 0;border-bottom:1px solid #f5f5f5}
.dl-requirements li::before{content:'✓ ';color:#31c27c;font-weight:700}

/* 关于页 */
.about-intro{font-size:16px;color:#555;line-height:1.9;margin-bottom:30px}
.about-features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
.about-feat{background:#fff;border-radius:12px;padding:24px;text-align:center;border:1px solid #eee}
.about-feat .num{font-size:36px;font-weight:700;color:#31c27c;margin-bottom:6px}
.about-feat .lbl{font-size:13px;color:#888}

/* 功能页 */
.func-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.func-item{background:#fff;border-radius:12px;padding:28px;border:1px solid #eee;display:flex;gap:16px;transition:.3s}
.func-item:hover{box-shadow:0 8px 25px rgba(0,0,0,.08);border-color:#31c27c}
.func-icon{width:50px;height:50px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}
.func-icon.g1{background:#e8f8f0;color:#31c27c}
.func-icon.g2{background:#e8f0ff;color:#4facfe}
.func-icon.g3{background:#f5e8ff;color:#a18cd1}
.func-icon.g4{background:#fff0e8;color:#f093fb}
.func-info h3{font-size:16px;color:#222;margin-bottom:4px}
.func-info p{font-size:13px;color:#888;line-height:1.5}

/* 面包屑 */
.breadcrumb{display:flex;gap:8px;align-items:center;font-size:13px;color:#999;margin-bottom:30px}
.breadcrumb a{color:#31c27c}
.breadcrumb span{color:#666}

/* 二维码弹窗 */
.qr-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.6);z-index:9999;justify-content:center;align-items:center}
.qr-modal{background:#fff;border-radius:16px;padding:40px;max-width:560px;width:90%;position:relative;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.qr-close{position:absolute;top:12px;right:16px;background:none;border:none;font-size:28px;color:#999;cursor:pointer;line-height:1}
.qr-close:hover{color:#333}
.qr-body{display:flex;gap:30px;align-items:center}
.qr-img-wrap{text-align:center;flex-shrink:0}
.qr-scan-tip{margin-top:12px;font-size:13px;color:#666}
.qr-info{flex:1}
.qr-info-text{font-size:15px;color:#333;margin-bottom:16px;line-height:1.7}
.qr-feature-list{list-style:none;margin-bottom:16px}
.qr-feature-list li{font-size:13px;color:#888;padding:4px 0;padding-left:18px;position:relative}
.qr-feature-list li::before{content:'\2713';position:absolute;left:0;color:#31c27c;font-weight:700}

/* 二维码呼吸发光边框 */
.qr-code-glow{border:4px solid transparent;border-radius:14px;padding:4px;background:linear-gradient(#fff,#fff) padding-box,linear-gradient(135deg,rgba(49,194,124,.4),rgba(31,199,124,.2),rgba(49,194,124,.4)) border-box;animation:qrGlow 3s ease-in-out infinite}
@keyframes qrGlow{0%,100%{box-shadow:0 0 8px rgba(49,194,124,.25),0 0 20px rgba(49,194,124,.1);border-color:rgba(49,194,124,.35)}50%{box-shadow:0 0 16px rgba(49,194,124,.45),0 0 32px rgba(49,194,124,.18);border-color:rgba(49,194,124,.6)}}

/* 卡片内嵌二维码 */
.dl-qr-inline{text-align:center;margin-top:auto;padding-top:12px}
.dl-qr-inline img{display:inline-block;width:120px;height:120px}
.dl-qr-inline span{display:block;font-size:11px;color:#999;margin-top:4px}

/* 响应式 */
@media(max-width:768px){
  .nav{padding:0 20px}.nav-links{display:none}
  .hero{flex-direction:column;padding:50px 20px;text-align:center}
  .hero-text h1{font-size:30px}.hero-btns{justify-content:center}
  .hero-visual{margin-top:30px}.hero-card{width:240px;height:280px}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .hot-grid{grid-template-columns:repeat(2,1fr)}
  .stats-bar{gap:20px;flex-wrap:wrap}
  .vip-banner{flex-direction:column;text-align:center;padding:30px 20px}
  .vip-text h2{text-align:center}.section{padding:40px 20px}
  .dl-cards{grid-template-columns:1fr}
  .about-features{grid-template-columns:1fr}
  .func-list{grid-template-columns:1fr}
}