/* === 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:#faf8fc;color:#3a3a3a;line-height:1.75;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}

/* === 顶栏 === */
.aux-nav{background:#fff;border-bottom:1px solid #f3e5f5;font-size:13px;color:#9e9e9e}
.an-in{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:36px}
.an-l{display:flex;gap:20px}
.an-l a{color:#8d8d8d}
.an-l a:hover{color:#4A148C}
.an-r{display:flex;gap:12px;align-items:center}
.an-r a{color:#666}
.an-r a:first-child{color:#4A148C;font-weight:600}

/* === 主导航 === */
.masthead{background:#fff;border-bottom:2px solid #4A148C;position:sticky;top:0;z-index:100}
.mh-in{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;height:60px}
.mh-brand{display:flex;align-items:center;gap:8px;font-size:22px;font-weight:700;color:#2c2c2c;margin-right:40px}
.mh-icon{width:34px;height:34px;background:linear-gradient(135deg,#7B1FA2,#4A148C);border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff}
.mh-nav{display:flex;flex:1}
.mh-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}
.mh-nav a:hover,.mh-nav a.cur{color:#4A148C;border-bottom-color:#4A148C}
.mh-btn{padding:8px 24px;background:linear-gradient(135deg,#7B1FA2,#4A148C);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap;display:inline-block}
.mh-btn:hover{opacity:.9}

/* === 面包屑 === */
.bread{max-width:1200px;margin:0 auto;padding:12px 24px;font-size:13px;color:#9e9e9e}
.bread a{color:#666}
.bread a:hover{color:#4A148C}

/* === 主布局 === */
.wrapper{max-width:1200px;margin:0 auto 40px;padding:0 24px;display:flex;gap:20px}
.wr-main{flex:1;min-width:0}
.wr-side{width:300px;flex-shrink:0}

/* === 产品头部 === */
.product-hero{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}
.ph-logo{width:100px;height:100px;flex-shrink:0;background:linear-gradient(135deg,#7B1FA2,#4A148C);border-radius:16px;display:flex;align-items:center;justify-content:center}
.ph-logo img{display:block;width:100%;height:100%;object-fit:contain;border-radius:16px}
.ph-info{flex:1;min-width:0}
.ph-info h1{font-size:24px;font-weight:700;color:#2c2c2c;margin-bottom:4px}
.ph-meta{font-size:13px;color:#9e9e9e;margin-bottom:12px}
.ph-meta span{margin-right:16px}

/* 邀请码 */
.invite-row{display:flex;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.ir-lbl{font-size:14px;font-weight:600;color:#444;white-space:nowrap}
.ir-box{display:inline-flex;align-items:center;background:#F3E5F5;border:1px solid #CE93D8;border-radius:4px;padding:6px 16px}
.ir-val{font-size:22px;font-weight:800;letter-spacing:1px;color:#4A148C;font-family:"Courier New",monospace}
.ir-btn{margin-left:10px;padding:4px 14px;background:#fff;border:1px solid #CE93D8;border-radius:3px;color:#4A148C;font-size:12px;cursor:pointer;transition:all .15s}
.ir-btn:hover{background:#F3E5F5}
.ir-btn.copied{background:#10b981;border-color:#10b981;color:#fff}

.ph-acts{display:flex;gap:10px}
.btn-fill{display:inline-flex;align-items:center;gap:6px;padding:9px 24px;background:linear-gradient(135deg,#7B1FA2,#4A148C);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer}
.btn-fill:hover{opacity:.9}
.btn-outline{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;background:#fff;color:#4A148C;border:1px solid #CE93D8;border-radius:4px;font-size:14px;font-weight:500;cursor:pointer}
.btn-outline:hover{background:#F3E5F5}

/* 专区 */
.stat-badge{background:linear-gradient(135deg,#F3E5F5,#E1BEE7);border:1px solid #CE93D8;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.stat-badge:hover{border-color:#4A148C;box-shadow:0 2px 8px rgba(74,20,140,.15)}
.stat-badge h4{font-size:14px;color:#4A148C;margin-bottom:6px}
.stat-badge .stats-num{font-size:28px;font-weight:800;color:#4A148C}
.stat-badge .stats-desc{font-size:12px;color:#9e9e9e}

/* === 通用板块 === */
.block{background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);padding:24px;margin-bottom:20px}
.block-hd{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 #f5eef8}
.block-hd::before{content:'';width:3px;height:18px;background:#4A148C;border-radius:2px}
.anchor-pt{scroll-margin-top:80px}
.bhd-ico{font-size:24px;margin-right:6px;vertical-align:middle}

/* === 三列网格 === */
.triple-col{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.t3-cell{padding:20px 16px;background:#fdfbfe;border:1px solid #f5eef8;border-radius:6px;text-align:center}
.t3-cell .t3-ico{font-size:32px;margin-bottom:8px}
.t3-cell h5{font-size:14px;color:#3a3a3a;margin-bottom:4px}
.t3-cell p{font-size:12px;color:#888}

/* === 注册步骤 === */
.step-guide{display:flex;gap:20px}
.sg-item{flex:1;text-align:center;position:relative;padding:20px 12px;background:#fdfbfe;border:1px solid #f5eef8;border-radius:6px}
.sg-item+.sg-item::after{content:'\2192';position:absolute;left:-16px;top:50%;transform:translateY(-50%);font-size:18px;color:#4A148C}
.sg-num{width:36px;height:36px;margin:0 auto 10px;background:linear-gradient(135deg,#7B1FA2,#4A148C);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700}
.sg-item h5{font-size:14px;color:#3a3a3a;margin-bottom:4px}
.sg-item small{font-size:12px;color:#9e9e9e}

/* === 两列网格 === */
.dual-col{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.d2-cell{display:flex;gap:12px;padding:16px;background:#fdfbfe;border:1px solid #f5eef8;border-radius:6px;align-items:flex-start}
.d2-cell .d2-ico{font-size:24px;flex-shrink:0}
.d2-cell h5{font-size:14px;color:#3a3a3a;margin-bottom:4px}
.d2-cell p{font-size:12px;color:#888;line-height:1.6}

/* === 推广任务卡片 === */
.missions{display:flex;flex-direction:column;gap:12px}
.ms-item{padding:16px 18px;background:#fdfbfe;border:1px solid #f5eef8;border-radius:6px;display:flex;gap:14px;align-items:flex-start}
.ms-item .ms-badge{flex-shrink:0;padding:4px 12px;background:linear-gradient(135deg,#7B1FA2,#4A148C);color:#fff;border-radius:3px;font-size:13px;font-weight:600;white-space:nowrap}
.ms-item .ms-body h5{font-size:15px;color:#3a3a3a;margin-bottom:4px}
.ms-item .ms-body p{font-size:13px;color:#666;line-height:1.7}

/* === FAQ === */
.faq-wrap{display:flex;flex-direction:column;gap:12px}
.fw-item{padding:14px 16px;background:#fdfbfe;border:1px solid #f5eef8;border-radius:6px}
.fw-item .faq-q{font-size:14px;font-weight:600;color:#3a3a3a;margin-bottom:6px}
.fw-item .faq-a{font-size:13px;color:#666;line-height:1.7}

/* === 介绍文 === */
.desc-text{font-size:14px;color:#666;margin-bottom:18px;line-height:1.9}
.guide-text{font-size:14px;color:#666;margin-bottom:16px}
.alert-box{margin-top:16px;padding:12px 16px;background:#F3E5F5;border:1px solid #E1BEE7;border-radius:4px;font-size:13px;color:#888}

/* === 下载区 === */
.app-row{display:flex;gap:16px}
.ar-cell{flex:1;text-align:center;padding:24px 16px;background:#fdfbfe;border:1px solid #f5eef8;border-radius:8px}
.ar-cell .arc-ico{font-size:36px;margin-bottom:10px}
.ar-cell h5{font-size:15px;color:#3a3a3a;margin-bottom:4px}
.ar-cell .arc-ver{font-size:12px;color:#9e9e9e;margin-bottom:12px}
.arc-btn{display:inline-block;padding:8px 24px;background:linear-gradient(135deg,#7B1FA2,#4A148C);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer}
.arc-btn:hover{opacity:.9}
.qr-pair{display:flex;align-items:center;justify-content:center;gap:24px;padding:20px;margin-top:16px}
.qp-box{width:120px;height:120px;background:#f5eef8;border:1px solid #f3e5f5;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:12px;color:#9e9e9e}
.app-tip{font-size:12px;color:#9e9e9e;margin-top:12px;text-align:center}

/* === 侧栏 === */
.sidebar-card{background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);padding:20px;margin-bottom:20px}
.sbc-box{background:linear-gradient(135deg,#F3E5F5,#E1BEE7);border:1px solid #CE93D8;text-align:center}
.sbc-box .sbc-tt{font-size:15px;color:#4A148C;margin-bottom:10px}
.sbc-box .sbc-val{font-size:24px;font-weight:800;color:#4A148C;letter-spacing:1px;font-family:"Courier New",monospace;margin:8px 0}
.sbc-box .sbc-btn{width:100%;padding:10px;background:linear-gradient(135deg,#7B1FA2,#4A148C);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer}
.sbc-box .sbc-ft{font-size:11px;color:#aaa;margin-top:8px}
.sbc-title{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 #f5eef8}
.sbc-title::before{content:'';width:3px;height:16px;background:#4A148C;border-radius:2px}
.sbc-list{display:flex;flex-direction:column;gap:10px}
.sbl-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid #f5f5f5;font-size:13px}
.sbl-row:last-child{border-bottom:none}
.sbl-tag{padding:1px 8px;border-radius:3px;font-size:11px;flex-shrink:0;margin-left:8px}
.tag-hot{background:#ffeaea;color:#c62828;border:1px solid #ef9a9a}
.tag-daily{background:#e8f5e9;color:#2e7d32;border:1px solid #a5d6a7}
.tag-rec{background:#e3f2fd;color:#1565c0;border:1px solid #90caf9}

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

/* === 友链 === */
.linkbar{max-width:1200px;margin:0 auto;padding:20px 24px;display:flex;align-items:center;gap:16px;font-size:13px;color:#9e9e9e;flex-wrap:wrap}
.linkbar b{color:#666;white-space:nowrap}
.linkbar a{color:#888}
.linkbar a:hover{color:#4A148C}

/* === 底部 === */
.colophon{background:#2c2c2c;color:#9e9e9e;padding:24px;text-align:center;font-size:13px}
.colophon a{color:#bbb}
.colophon a:hover{color:#4A148C}
.colophon .cp-nav{margin-bottom:10px}
.colophon .cp-txt{font-size:12px;color:#777;line-height:2}

/* === 响应式 === */
@media(max-width:900px){
  .wrapper{flex-direction:column}
  .wr-side{width:100%}
  .product-hero{flex-direction:column;text-align:center}
  .stat-badge{width:100%}
  .invite-row{justify-content:center}
  .ph-acts{justify-content:center}
  .triple-col{grid-template-columns:repeat(2,1fr)}
  .step-guide{flex-wrap:wrap}
  .sg-item+.sg-item::after{display:none}
  .dual-col{grid-template-columns:1fr}
  .app-row{flex-direction:column}
  .mh-nav{display:none}
}
@media(max-width:480px){
  .triple-col{grid-template-columns:1fr}
  .aux-nav{display:none}
  .bread{display:none}
}