/* === Reset & Base === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;background:#fefafb;color:#3a3a3a;line-height:1.75;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}

/* === 顶栏 === */
.utility-bar{background:#fff;border-bottom:1px solid #fce8ef;font-size:13px;color:#9e9e9e}
.utility-in{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:36px}
.utility-left{display:flex;gap:20px}
.utility-left a{color:#8d8d8d}
.utility-left a:hover{color:#AD1457}
.utility-right{display:flex;gap:12px;align-items:center}
.utility-right a{color:#666}
.utility-right a:first-child{color:#AD1457;font-weight:600}

/* === 主导航 === */
.global-nav{background:#fff;border-bottom:2px solid #AD1457;position:sticky;top:0;z-index:100}
.global-in{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;height:60px}
.site-brand{display:flex;align-items:center;gap:8px;font-size:22px;font-weight:700;color:#2c2c2c;margin-right:40px}
.brand-badge{width:34px;height:34px;background:linear-gradient(135deg,#E91E63,#AD1457);border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff}
.primary-nav{display:flex;flex:1}
.primary-nav a{padding:0 22px;height:60px;line-height:60px;font-size:15px;color:#444;font-weight:500;border-bottom:2px solid transparent;margin-bottom:-2px;transition:color .15s,border-color .15s;display:inline-block}
.primary-nav a:hover,.primary-nav a.cur{color:#AD1457;border-bottom-color:#AD1457}
.nav-cta{padding:8px 24px;background:linear-gradient(135deg,#E91E63,#AD1457);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap;display:inline-block}
.nav-cta:hover{opacity:.9}

/* === 面包屑 === */
.page-path{max-width:1200px;margin:0 auto;padding:12px 24px;font-size:13px;color:#9e9e9e}
.page-path a{color:#666}
.page-path a:hover{color:#AD1457}

/* === 主布局 === */
.content-grid{max-width:1200px;margin:0 auto 40px;padding:0 24px;display:flex;gap:20px}
.grid-left{flex:1;min-width:0}
.grid-right{width:300px;flex-shrink:0}

/* === 产品头部 === */
.hero-section{background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);padding:28px 32px;margin-bottom:20px;display:flex;gap:28px;align-items:center}
.hero-avatar{width:100px;height:100px;flex-shrink:0;background:linear-gradient(135deg,#E91E63,#AD1457);border-radius:16px;display:flex;align-items:center;justify-content:center}
.hero-avatar img{display:block;width:100%;height:100%;object-fit:contain;border-radius:16px}
.hero-body{flex:1;min-width:0}
.hero-body h1{font-size:24px;font-weight:700;color:#2c2c2c;margin-bottom:4px}
.hero-stats{font-size:13px;color:#9e9e9e;margin-bottom:12px}
.hero-stats span{margin-right:16px}

/* 邀请码 */
.code-group{display:flex;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.code-label{font-size:14px;font-weight:600;color:#444;white-space:nowrap}
.code-display{display:inline-flex;align-items:center;background:#FCE4EC;border:1px solid #F48FB1;border-radius:4px;padding:6px 16px}
.code-text{font-size:22px;font-weight:800;letter-spacing:1px;color:#AD1457;font-family:"Courier New",monospace}
.code-copy{margin-left:10px;padding:4px 14px;background:#fff;border:1px solid #F48FB1;border-radius:3px;color:#AD1457;font-size:12px;cursor:pointer;transition:all .15s}
.code-copy:hover{background:#FCE4EC}
.code-copy.copied{background:#10b981;border-color:#10b981;color:#fff}

.hero-ctas{display:flex;gap:10px}
.cta-primary{display:inline-flex;align-items:center;gap:6px;padding:9px 24px;background:linear-gradient(135deg,#E91E63,#AD1457);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer}
.cta-primary:hover{opacity:.9}
.cta-secondary{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;background:#fff;color:#AD1457;border:1px solid #F48FB1;border-radius:4px;font-size:14px;font-weight:500;cursor:pointer}
.cta-secondary:hover{background:#FCE4EC}

/* 专区 */
.badge-panel{background:linear-gradient(135deg,#FCE4EC,#f8bbd0);border:1px solid #F48FB1;border-radius:8px;padding:20px 18px;text-align:center;flex-shrink:0;min-width:140px;display:block;transition:border-color .2s,box-shadow .2s}
a.badge-panel:hover{border-color:#AD1457;box-shadow:0 2px 8px rgba(173,20,87,.15)}
.badge-panel h4{font-size:14px;color:#AD1457;margin-bottom:6px}
.badge-panel .stats-num{font-size:28px;font-weight:800;color:#AD1457}
.badge-panel .stats-desc{font-size:12px;color:#9e9e9e}

/* === 通用板块 === */
.content-card{background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);padding:24px;margin-bottom:20px}
.card-heading{font-size:18px;font-weight:700;color:#2c2c2c;display:flex;align-items:center;gap:8px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #fdf2f7}
.card-heading::before{content:'';width:3px;height:18px;background:#AD1457;border-radius:2px}
.tab-panel{scroll-margin-top:80px}
.heading-icon{font-size:24px;margin-right:6px;vertical-align:middle}

/* === 三列网格 === */
.three-col{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.three-item{padding:20px 16px;background:#fffcfd;border:1px solid #fdf2f7;border-radius:6px;text-align:center}
.three-item .three-icon{font-size:32px;margin-bottom:8px}
.three-item h5{font-size:14px;color:#3a3a3a;margin-bottom:4px}
.three-item p{font-size:12px;color:#888}

/* === 注册步骤 === */
.step-row{display:flex;gap:20px}
.step-cell{flex:1;text-align:center;position:relative;padding:20px 12px;background:#fffcfd;border:1px solid #fdf2f7;border-radius:6px}
.step-cell+.step-cell::after{content:'\2192';position:absolute;left:-16px;top:50%;transform:translateY(-50%);font-size:18px;color:#AD1457}
.step-num{width:36px;height:36px;margin:0 auto 10px;background:linear-gradient(135deg,#E91E63,#AD1457);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700}
.step-cell h5{font-size:14px;color:#3a3a3a;margin-bottom:4px}
.step-cell small{font-size:12px;color:#9e9e9e}

/* === 两列网格 === */
.two-col{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.two-item{display:flex;gap:12px;padding:16px;background:#fffcfd;border:1px solid #fdf2f7;border-radius:6px;align-items:flex-start}
.two-item .two-icon{font-size:24px;flex-shrink:0}
.two-item h5{font-size:14px;color:#3a3a3a;margin-bottom:4px}
.two-item p{font-size:12px;color:#888;line-height:1.6}

/* === 推广任务卡片 === */
.task-list{display:flex;flex-direction:column;gap:12px}
.task-card{padding:16px 18px;background:#fffcfd;border:1px solid #fdf2f7;border-radius:6px;display:flex;gap:14px;align-items:flex-start}
.task-card .task-tag{flex-shrink:0;padding:4px 12px;background:linear-gradient(135deg,#E91E63,#AD1457);color:#fff;border-radius:3px;font-size:13px;font-weight:600;white-space:nowrap}
.task-card .task-desc h5{font-size:15px;color:#3a3a3a;margin-bottom:4px}
.task-card .task-desc p{font-size:13px;color:#666;line-height:1.7}

/* === FAQ === */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-card{padding:14px 16px;background:#fffcfd;border:1px solid #fdf2f7;border-radius:6px}
.faq-card .faq-q{font-size:14px;font-weight:600;color:#3a3a3a;margin-bottom:6px}
.faq-card .faq-a{font-size:13px;color:#666;line-height:1.7}

/* === 介绍文 === */
.article-text{font-size:14px;color:#666;margin-bottom:18px;line-height:1.9}
.guide-text{font-size:14px;color:#666;margin-bottom:16px}
.callout{margin-top:16px;padding:12px 16px;background:#FCE4EC;border:1px solid #F48FB1;border-radius:4px;font-size:13px;color:#888}

/* === 下载区 === */
.dl-grid{display:flex;gap:16px}
.dl-cell{flex:1;text-align:center;padding:24px 16px;background:#fffcfd;border:1px solid #fdf2f7;border-radius:8px}
.dl-cell .dl-icon{font-size:36px;margin-bottom:10px}
.dl-cell h5{font-size:15px;color:#3a3a3a;margin-bottom:4px}
.dl-cell .dl-version{font-size:12px;color:#9e9e9e;margin-bottom:12px}
.dl-button{display:inline-block;padding:8px 24px;background:linear-gradient(135deg,#E91E63,#AD1457);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer}
.dl-button:hover{opacity:.9}
.qr-grid{display:flex;align-items:center;justify-content:center;gap:24px;padding:20px;margin-top:16px}
.qr-cell{width:120px;height:120px;background:#fdf2f7;border:1px solid #fce8ef;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:12px;color:#9e9e9e}
.dl-remark{font-size:12px;color:#9e9e9e;margin-top:12px;text-align:center}

/* === 侧栏 === */
.side-card{background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);padding:20px;margin-bottom:20px}
.side-invite{background:linear-gradient(135deg,#FCE4EC,#f8bbd0);border:1px solid #F48FB1;text-align:center}
.side-invite .invite-head{font-size:15px;color:#AD1457;margin-bottom:10px}
.side-invite .invite-code{font-size:24px;font-weight:800;color:#AD1457;letter-spacing:1px;font-family:"Courier New",monospace;margin:8px 0}
.side-invite .invite-btn{width:100%;padding:10px;background:linear-gradient(135deg,#E91E63,#AD1457);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer}
.side-invite .invite-foot{font-size:11px;color:#aaa;margin-top:8px}
.side-heading{font-size:16px;font-weight:700;color:#2c2c2c;display:flex;align-items:center;gap:6px;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid #fdf2f7}
.side-heading::before{content:'';width:3px;height:16px;background:#AD1457;border-radius:2px}
.trend-list{display:flex;flex-direction:column;gap:10px}
.trend-item{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid #f5f5f5;font-size:13px}
.trend-item:last-child{border-bottom:none}
.trend-tag{padding:1px 8px;border-radius:3px;font-size:11px;flex-shrink:0;margin-left:8px}
.tag-fire{background:#ffeaea;color:#c62828;border:1px solid #ef9a9a}
.tag-fresh{background:#e8f5e9;color:#2e7d32;border:1px solid #a5d6a7}
.tag-star{background:#e3f2fd;color:#1565c0;border:1px solid #90caf9}

/* === 侧栏列表 === */
.attr-list{display:flex;flex-direction:column;gap:10px}
.attr-item{display:flex;align-items:center;gap:8px;font-size:13px;color:#666}
.attr-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}

/* === 友链 === */
.link-row{max-width:1200px;margin:0 auto;padding:20px 24px;display:flex;align-items:center;gap:16px;font-size:13px;color:#9e9e9e;flex-wrap:wrap}
.link-row b{color:#666;white-space:nowrap}
.link-row a{color:#888}
.link-row a:hover{color:#AD1457}

/* === 底部 === */
.global-foot{background:#2c2c2c;color:#9e9e9e;padding:24px;text-align:center;font-size:13px}
.global-foot a{color:#bbb}
.global-foot a:hover{color:#AD1457}
.global-foot .foot-nav{margin-bottom:10px}
.global-foot .foot-text{font-size:12px;color:#777;line-height:2}

/* === 响应式 === */
@media(max-width:900px){
  .content-grid{flex-direction:column}
  .grid-right{width:100%}
  .hero-section{flex-direction:column;text-align:center}
  .badge-panel{width:100%}
  .code-group{justify-content:center}
  .hero-ctas{justify-content:center}
  .three-col{grid-template-columns:repeat(2,1fr)}
  .step-row{flex-wrap:wrap}
  .step-cell+.step-cell::after{display:none}
  .two-col{grid-template-columns:1fr}
  .dl-grid{flex-direction:column}
  .primary-nav{display:none}
}
@media(max-width:480px){
  .three-col{grid-template-columns:1fr}
  .utility-bar{display:none}
  .page-path{display:none}
}