/* === 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:#f5faf8;color:#3a3a3a;line-height:1.75;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}

/* === 顶栏 === */
.top-strip{background:#fff;border-bottom:1px solid #e0f2f1;font-size:13px;color:#9e9e9e}
.ts-in{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:36px}
.ts-l{display:flex;gap:20px}
.ts-l a{color:#8d8d8d}
.ts-l a:hover{color:#004D40}
.ts-r{display:flex;gap:12px;align-items:center}
.ts-r a{color:#666}
.ts-r a:first-child{color:#004D40;font-weight:600}

/* === 主导航 === */
.nav-bar{background:#fff;border-bottom:2px solid #004D40;position:sticky;top:0;z-index:100}
.nb-in{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;height:60px}
.nb-brand{display:flex;align-items:center;gap:8px;font-size:22px;font-weight:700;color:#2c2c2c;margin-right:40px}
.nb-icon{width:34px;height:34px;background:linear-gradient(135deg,#00897B,#004D40);border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff}
.nb-menu{display:flex;flex:1}
.nb-menu 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}
.nb-menu a:hover,.nb-menu a.cur{color:#004D40;border-bottom-color:#004D40}
.nb-act{padding:8px 24px;background:linear-gradient(135deg,#00897B,#004D40);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap;display:inline-block}
.nb-act:hover{opacity:.9}

/* === 面包屑 === */
.trail{max-width:1200px;margin:0 auto;padding:12px 24px;font-size:13px;color:#9e9e9e}
.trail a{color:#666}
.trail a:hover{color:#004D40}

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

/* === 产品头部 === */
.jumbo{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}
.jb-logo{width:100px;height:100px;flex-shrink:0;background:linear-gradient(135deg,#00897B,#004D40);border-radius:16px;display:flex;align-items:center;justify-content:center}
.jb-logo img{display:block;width:100%;height:100%;object-fit:contain;border-radius:16px}
.jb-info{flex:1;min-width:0}
.jb-info h1{font-size:24px;font-weight:700;color:#2c2c2c;margin-bottom:4px}
.jb-tags{font-size:13px;color:#9e9e9e;margin-bottom:12px}
.jb-tags span{margin-right:16px}

/* 邀请码 */
.code-line{display:flex;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.cl-lbl{font-size:14px;font-weight:600;color:#444;white-space:nowrap}
.cl-box{display:inline-flex;align-items:center;background:#E0F2F1;border:1px solid #80CBC4;border-radius:4px;padding:6px 16px}
.cl-val{font-size:22px;font-weight:800;letter-spacing:1px;color:#004D40;font-family:"Courier New",monospace}
.cl-btn{margin-left:10px;padding:4px 14px;background:#fff;border:1px solid #80CBC4;border-radius:3px;color:#004D40;font-size:12px;cursor:pointer;transition:all .15s}
.cl-btn:hover{background:#E0F2F1}
.cl-btn.copied{background:#10b981;border-color:#10b981;color:#fff}

.jb-acts{display:flex;gap:10px}
.btn-solid{display:inline-flex;align-items:center;gap:6px;padding:9px 24px;background:linear-gradient(135deg,#00897B,#004D40);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:#004D40;border:1px solid #80CBC4;border-radius:4px;font-size:14px;font-weight:500;cursor:pointer}
.btn-hollow:hover{background:#E0F2F1}

/* 专区 */
.hero-badge{background:linear-gradient(135deg,#E0F2F1,#B2DFDB);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.hero-badge:hover{border-color:#004D40;box-shadow:0 2px 8px rgba(0,77,64,.15)}
.hero-badge h4{font-size:14px;color:#004D40;margin-bottom:6px}
.hero-badge .stats-num{font-size:28px;font-weight:800;color:#004D40}
.hero-badge .stats-desc{font-size:12px;color:#9e9e9e}

/* === 通用板块 === */
.card{background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);padding:24px;margin-bottom:20px}
.card-tt{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 #e9f5f3}
.card-tt::before{content:'';width:3px;height:18px;background:#004D40;border-radius:2px}
.target{scroll-margin-top:80px}
.ct-icon{font-size:24px;margin-right:6px;vertical-align:middle}

/* === 三列网格 === */
.tcols{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tc-item{padding:20px 16px;background:#fafdfc;border:1px solid #e9f5f3;border-radius:6px;text-align:center}
.tc-item .tci-ico{font-size:32px;margin-bottom:8px}
.tc-item h5{font-size:14px;color:#3a3a3a;margin-bottom:4px}
.tc-item p{font-size:12px;color:#888}

/* === 注册步骤 === */
.flow{display:flex;gap:20px}
.flow-step{flex:1;text-align:center;position:relative;padding:20px 12px;background:#fafdfc;border:1px solid #e9f5f3;border-radius:6px}
.flow-step+.flow-step::after{content:'\2192';position:absolute;left:-16px;top:50%;transform:translateY(-50%);font-size:18px;color:#004D40}
.fs-num{width:36px;height:36px;margin:0 auto 10px;background:linear-gradient(135deg,#00897B,#004D40);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700}
.flow-step h5{font-size:14px;color:#3a3a3a;margin-bottom:4px}
.flow-step small{font-size:12px;color:#9e9e9e}

/* === 两列网格 === */
.dcols{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.dc-item{display:flex;gap:12px;padding:16px;background:#fafdfc;border:1px solid #e9f5f3;border-radius:6px;align-items:flex-start}
.dc-item .dci-ico{font-size:24px;flex-shrink:0}
.dc-item h5{font-size:14px;color:#3a3a3a;margin-bottom:4px}
.dc-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}
.tl-item{padding:16px 18px;background:#fafdfc;border:1px solid #e9f5f3;border-radius:6px;display:flex;gap:14px;align-items:flex-start}
.tl-item .tli-tag{flex-shrink:0;padding:4px 12px;background:linear-gradient(135deg,#00897B,#004D40);color:#fff;border-radius:3px;font-size:13px;font-weight:600;white-space:nowrap}
.tl-item .tli-body h5{font-size:15px;color:#3a3a3a;margin-bottom:4px}
.tl-item .tli-body p{font-size:13px;color:#666;line-height:1.7}

/* === FAQ === */
.faq-group{display:flex;flex-direction:column;gap:12px}
.fg-item{padding:14px 16px;background:#fafdfc;border:1px solid #e9f5f3;border-radius:6px}
.fg-item .faq-q{font-size:14px;font-weight:600;color:#3a3a3a;margin-bottom:6px}
.fg-item .faq-a{font-size:13px;color:#666;line-height:1.7}

/* === 介绍文 === */
.intro{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 #B2DFDB;border-radius:4px;font-size:13px;color:#888}

/* === 下载区 === */
.dload-row{display:flex;gap:16px}
.dl-item{flex:1;text-align:center;padding:24px 16px;background:#fafdfc;border:1px solid #e9f5f3;border-radius:8px}
.dl-item .dli-ico{font-size:36px;margin-bottom:10px}
.dl-item h5{font-size:15px;color:#3a3a3a;margin-bottom:4px}
.dl-item .dli-ver{font-size:12px;color:#9e9e9e;margin-bottom:12px}
.dli-btn{display:inline-block;padding:8px 24px;background:linear-gradient(135deg,#00897B,#004D40);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer}
.dli-btn:hover{opacity:.9}
.qr-row{display:flex;align-items:center;justify-content:center;gap:24px;padding:20px;margin-top:16px}
.qr-cell{width:120px;height:120px;background:#e9f5f3;border:1px solid #e0f2f1;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:12px;color:#9e9e9e}
.dl-foot{font-size:12px;color:#9e9e9e;margin-top:12px;text-align:center}

/* === 侧栏 === */
.aside-box{background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);padding:20px;margin-bottom:20px}
.ab-hero{background:linear-gradient(135deg,#E0F2F1,#B2DFDB);border:1px solid #80CBC4;text-align:center}
.ab-hero .abh-tt{font-size:15px;color:#004D40;margin-bottom:10px}
.ab-hero .abh-val{font-size:24px;font-weight:800;color:#004D40;letter-spacing:1px;font-family:"Courier New",monospace;margin:8px 0}
.ab-hero .abh-btn{width:100%;padding:10px;background:linear-gradient(135deg,#00897B,#004D40);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer}
.ab-hero .abh-ft{font-size:11px;color:#aaa;margin-top:8px}
.ab-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 #e9f5f3}
.ab-title::before{content:'';width:3px;height:16px;background:#004D40;border-radius:2px}
.ab-list{display:flex;flex-direction:column;gap:10px}
.abl-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid #f5f5f5;font-size:13px}
.abl-row:last-child{border-bottom:none}
.abl-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}

/* === 侧栏列表 === */
.ab-props{display:flex;flex-direction:column;gap:10px}
.abp-row{display:flex;align-items:center;gap:8px;font-size:13px;color:#666}
.abp-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:#004D40}

/* === 底部 === */
.page-foot{background:#2c2c2c;color:#9e9e9e;padding:24px;text-align:center;font-size:13px}
.page-foot a{color:#bbb}
.page-foot a:hover{color:#004D40}
.page-foot .pf-nav{margin-bottom:10px}
.page-foot .pf-txt{font-size:12px;color:#777;line-height:2}

/* === 响应式 === */
@media(max-width:900px){
  .sheet{flex-direction:column}
  .st-side{width:100%}
  .jumbo{flex-direction:column;text-align:center}
  .hero-badge{width:100%}
  .code-line{justify-content:center}
  .jb-acts{justify-content:center}
  .tcols{grid-template-columns:repeat(2,1fr)}
  .flow{flex-wrap:wrap}
  .flow-step+.flow-step::after{display:none}
  .dcols{grid-template-columns:1fr}
  .dload-row{flex-direction:column}
  .nb-menu{display:none}
}
@media(max-width:480px){
  .tcols{grid-template-columns:1fr}
  .top-strip{display:none}
  .trail{display:none}
}