/* === 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:#f5faf9;color:#3a3a3a;line-height:1.75;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}

/* === 顶栏 === */
.topnav{background:#fff;border-bottom:1px solid #e0f0eb;font-size:13px;color:#9e9e9e}
.topnav-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:36px}
.topnav-links{display:flex;gap:20px}
.topnav-links a{color:#8d8d8d}
.topnav-links a:hover{color:#00897B}
.topnav-login{display:flex;gap:12px;align-items:center}
.topnav-login a{color:#666}
.topnav-login a:first-child{color:#00897B;font-weight:600}

/* === 主导航 === */
.header{background:#fff;border-bottom:2px solid #00897B;position:sticky;top:0;z-index:100}
.header-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;height:60px}
.logo{display:flex;align-items:center;gap:8px;font-size:22px;font-weight:700;color:#2c2c2c;margin-right:40px}
.logo-img{width:34px;height:34px;background:linear-gradient(135deg,#00BFA5,#00897B);border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff}
.nav{display:flex;flex:1}
.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}
.nav a:hover,.nav a.cur{color:#00897B;border-bottom-color:#00897B}
.nav-btn{padding:8px 24px;background:linear-gradient(135deg,#00BFA5,#00897B);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap;display:inline-block}
.nav-btn:hover{opacity:.9}

/* === 面包屑 === */
.crumb{max-width:1200px;margin:0 auto;padding:12px 24px;font-size:13px;color:#9e9e9e}
.crumb a{color:#666}
.crumb a:hover{color:#00897B}

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

/* === 产品头部 === */
.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}
.hero-img{width:100px;height:100px;flex-shrink:0;background:linear-gradient(135deg,#00BFA5,#00897B);border-radius:16px;display:flex;align-items:center;justify-content:center}
.hero-img img{display:block;width:100%;height:100%;object-fit:contain;border-radius:16px}
.hero-info{flex:1;min-width:0}
.hero-info h1{font-size:24px;font-weight:700;color:#2c2c2c;margin-bottom:4px}
.hero-tags{font-size:13px;color:#9e9e9e;margin-bottom:12px}
.hero-tags span{margin-right:16px}

/* 邀请码 */
.code-area{display:flex;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.code-title{font-size:14px;font-weight:600;color:#444;white-space:nowrap}
.code-box{display:inline-flex;align-items:center;background:#E0F2F1;border:1px solid #80CBC4;border-radius:4px;padding:6px 16px}
.code-val{font-size:22px;font-weight:800;letter-spacing:1px;color:#00897B;font-family:"Courier New",monospace}
.btn-copy{margin-left:10px;padding:4px 14px;background:#fff;border:1px solid #80CBC4;border-radius:3px;color:#00897B;font-size:12px;cursor:pointer;transition:all .15s}
.btn-copy:hover{background:#E0F2F1}
.btn-copy.copied{background:#10b981;border-color:#10b981;color:#fff}

.hero-acts{display:flex;gap:10px}
.btn-solid{display:inline-flex;align-items:center;gap:6px;padding:9px 24px;background:linear-gradient(135deg,#00BFA5,#00897B);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer}
.btn-solid:hover{opacity:.9}
.btn-hollow{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;background:#fff;color:#00897B;border:1px solid #80CBC4;border-radius:4px;font-size:14px;font-weight:500;cursor:pointer}
.btn-hollow:hover{background:#E0F2F1}

/* 专区 */
.zone{background:linear-gradient(135deg,#E0F2F1,#c8e6df);border:1px solid #80CBC4;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.zone:hover{border-color:#00897B;box-shadow:0 2px 8px rgba(0,137,123,.15)}
.zone h4{font-size:14px;color:#00897B;margin-bottom:6px}
.zone .zone-val{font-size:28px;font-weight:800;color:#00897B}
.zone .zone-sub{font-size:12px;color:#9e9e9e}

/* === 通用板块 === */
.panel{background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);padding:24px;margin-bottom:20px}
.panel-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 #edf7f4}
.panel-hd::before{content:'';width:3px;height:18px;background:#00897B;border-radius:2px}
.jump{scroll-margin-top:80px}
.hd-icon{font-size:24px;margin-right:6px;vertical-align:middle}

/* === 三列网格 === */
.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cell{padding:20px 16px;background:#f8fcfa;border:1px solid #edf7f4;border-radius:6px;text-align:center}
.cell .cell-icon{font-size:32px;margin-bottom:8px}
.cell h5{font-size:14px;color:#3a3a3a;margin-bottom:4px}
.cell p{font-size:12px;color:#888}

/* === 注册步骤 === */
.flow{display:flex;gap:20px}
.flow-item{flex:1;text-align:center;position:relative;padding:20px 12px;background:#f8fcfa;border:1px solid #edf7f4;border-radius:6px}
.flow-item+.flow-item::after{content:'\2192';position:absolute;left:-16px;top:50%;transform:translateY(-50%);font-size:18px;color:#00897B}
.flow-no{width:36px;height:36px;margin:0 auto 10px;background:linear-gradient(135deg,#00BFA5,#00897B);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700}
.flow-item h5{font-size:14px;color:#3a3a3a;margin-bottom:4px}
.flow-item small{font-size:12px;color:#9e9e9e}

/* === 两列网格 === */
.cols2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.point{display:flex;gap:12px;padding:16px;background:#f8fcfa;border:1px solid #edf7f4;border-radius:6px;align-items:flex-start}
.point .point-icon{font-size:24px;flex-shrink:0}
.point h5{font-size:14px;color:#3a3a3a;margin-bottom:4px}
.point p{font-size:12px;color:#888;line-height:1.6}

/* === 推广任务卡片 === */
.ta{display:flex;flex-direction:column;gap:12px}
.ta-item{padding:16px 18px;background:#f8fcfa;border:1px solid #edf7f4;border-radius:6px;display:flex;gap:14px;align-items:flex-start}
.ta-item .ta-badge{flex-shrink:0;padding:4px 12px;background:linear-gradient(135deg,#00BFA5,#00897B);color:#fff;border-radius:3px;font-size:13px;font-weight:600;white-space:nowrap}
.ta-item .ta-body h5{font-size:15px;color:#3a3a3a;margin-bottom:4px}
.ta-item .ta-body p{font-size:13px;color:#666;line-height:1.7}

/* === FAQ === */
.qa{display:flex;flex-direction:column;gap:12px}
.qa-item{padding:14px 16px;background:#f8fcfa;border:1px solid #edf7f4;border-radius:6px}
.qa-item .qa-q{font-size:14px;font-weight:600;color:#3a3a3a;margin-bottom:6px}
.qa-item .qa-a{font-size:13px;color:#666;line-height:1.7}

/* === 介绍文 === */
.article{font-size:14px;color:#666;margin-bottom:18px;line-height:1.9}
.howto{font-size:14px;color:#666;margin-bottom:16px}
.notice{margin-top:16px;padding:12px 16px;background:#E0F2F1;border:1px solid #80CBC4;border-radius:4px;font-size:13px;color:#888}

/* === 下载区 === */
.down{display:flex;gap:16px}
.down-card{flex:1;text-align:center;padding:24px 16px;background:#f8fcfa;border:1px solid #edf7f4;border-radius:8px}
.down-card .down-icon{font-size:36px;margin-bottom:10px}
.down-card h5{font-size:15px;color:#3a3a3a;margin-bottom:4px}
.down-card .down-ver{font-size:12px;color:#9e9e9e;margin-bottom:12px}
.down-btn{display:inline-block;padding:8px 24px;background:linear-gradient(135deg,#00BFA5,#00897B);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer}
.down-btn:hover{opacity:.9}
.qrcode{display:flex;align-items:center;justify-content:center;gap:24px;padding:20px;margin-top:16px}
.qrcode-img{width:120px;height:120px;background:#edf7f4;border:1px solid #e0f0eb;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:12px;color:#9e9e9e}
.down-tip{font-size:12px;color:#9e9e9e;margin-top:12px;text-align:center}

/* === 侧栏 === */
.widget{background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);padding:20px;margin-bottom:20px}
.w-code{background:linear-gradient(135deg,#E0F2F1,#c8e6df);border:1px solid #80CBC4;text-align:center}
.w-code .wc-hd{font-size:15px;color:#00897B;margin-bottom:10px}
.w-code .wc-val{font-size:24px;font-weight:800;color:#00897B;letter-spacing:1px;font-family:"Courier New",monospace;margin:8px 0}
.w-code .wc-btn{width:100%;padding:10px;background:linear-gradient(135deg,#00BFA5,#00897B);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer}
.w-code .wc-tip{font-size:11px;color:#aaa;margin-top:8px}
.wg-hd{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 #edf7f4}
.wg-hd::before{content:'';width:3px;height:16px;background:#00897B;border-radius:2px}
.rank{display:flex;flex-direction:column;gap:10px}
.rank-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid #f5f5f5;font-size:13px}
.rank-row:last-child{border-bottom:none}
.rank-tag{padding:1px 8px;border-radius:3px;font-size:11px;flex-shrink:0;margin-left:8px}
.t-red{background:#ffeaea;color:#c62828;border:1px solid #ef9a9a}
.t-green{background:#e8f5e9;color:#2e7d32;border:1px solid #a5d6a7}
.t-blue{background:#e3f2fd;color:#1565c0;border:1px solid #90caf9}

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

/* === 友链 === */
.links{max-width:1200px;margin:0 auto;padding:20px 24px;display:flex;align-items:center;gap:16px;font-size:13px;color:#9e9e9e;flex-wrap:wrap}
.links b{color:#666;white-space:nowrap}
.links a{color:#888}
.links a:hover{color:#00897B}

/* === 底部 === */
.footer{background:#2c2c2c;color:#9e9e9e;padding:24px;text-align:center;font-size:13px}
.footer a{color:#bbb}
.footer a:hover{color:#00897B}
.footer .footer-links{margin-bottom:10px}
.footer .footer-note{font-size:12px;color:#777;line-height:2}

/* === 响应式 === */
@media(max-width:900px){
  .wrap{flex-direction:column}
  .aside{width:100%}
  .hero{flex-direction:column;text-align:center}
  .zone{width:100%}
  .code-area{justify-content:center}
  .hero-acts{justify-content:center}
  .cols3{grid-template-columns:repeat(2,1fr)}
  .flow{flex-wrap:wrap}
  .flow-item+.flow-item::after{display:none}
  .cols2{grid-template-columns:1fr}
  .down{flex-direction:column}
  .nav{display:none}
}
@media(max-width:480px){
  .cols3{grid-template-columns:1fr}
  .topnav{display:none}
  .crumb{display:none}
}