/* === 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:#f7faff;color:#3a3a3a;line-height:1.75;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}

/* === 顶栏 === */
.toolbar{background:#fff;border-bottom:1px solid #e8f0fa;font-size:13px;color:#9e9e9e}
.toolbar-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:36px}
.toolbar-links{display:flex;gap:20px}
.toolbar-links a{color:#8d8d8d}
.toolbar-links a:hover{color:#1565C0}
.toolbar-login{display:flex;gap:12px;align-items:center}
.toolbar-login a{color:#666}
.toolbar-login a:first-child{color:#1565C0;font-weight:600}

/* === 主导航 === */
.navbar{background:#fff;border-bottom:2px solid #1565C0;position:sticky;top:0;z-index:100}
.navbar-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;height:60px}
.logo-text{display:flex;align-items:center;gap:8px;font-size:22px;font-weight:700;color:#2c2c2c;margin-right:40px}
.logo-mark{width:34px;height:34px;background:linear-gradient(135deg,#1E88E5,#1565C0);border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff}
.nav-links{display:flex;flex:1}
.nav-links 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-links a:hover,.nav-links a.cur{color:#1565C0;border-bottom-color:#1565C0}
.nav-signup{padding:8px 24px;background:linear-gradient(135deg,#1E88E5,#1565C0);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap;display:inline-block}
.nav-signup:hover{opacity:.9}

/* === 面包屑 === */
.path{max-width:1200px;margin:0 auto;padding:12px 24px;font-size:13px;color:#9e9e9e}
.path a{color:#666}
.path a:hover{color:#1565C0}

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

/* === 产品头部 === */
.intro{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}
.intro-icon{width:100px;height:100px;flex-shrink:0;background:linear-gradient(135deg,#1E88E5,#1565C0);border-radius:16px;display:flex;align-items:center;justify-content:center}
.intro-icon img{display:block;width:100%;height:100%;object-fit:contain;border-radius:16px}
.intro-text{flex:1;min-width:0}
.intro-text h1{font-size:24px;font-weight:700;color:#2c2c2c;margin-bottom:4px}
.intro-meta{font-size:13px;color:#9e9e9e;margin-bottom:12px}
.intro-meta span{margin-right:16px}

/* 邀请码 */
.invite-area{display:flex;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.invite-hint{font-size:14px;font-weight:600;color:#444;white-space:nowrap}
.invite-block{display:inline-flex;align-items:center;background:#E3F2FD;border:1px solid #90CAF9;border-radius:4px;padding:6px 16px}
.invite-str{font-size:22px;font-weight:800;letter-spacing:1px;color:#1565C0;font-family:"Courier New",monospace}
.copy-action{margin-left:10px;padding:4px 14px;background:#fff;border:1px solid #90CAF9;border-radius:3px;color:#1565C0;font-size:12px;cursor:pointer;transition:all .15s}
.copy-action:hover{background:#E3F2FD}
.copy-action.copied{background:#10b981;border-color:#10b981;color:#fff}

.intro-actions{display:flex;gap:10px}
.action-primary{display:inline-flex;align-items:center;gap:6px;padding:9px 24px;background:linear-gradient(135deg,#1E88E5,#1565C0);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer}
.action-primary:hover{opacity:.9}
.action-secondary{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;background:#fff;color:#1565C0;border:1px solid #90CAF9;border-radius:4px;font-size:14px;font-weight:500;cursor:pointer}
.action-secondary:hover{background:#E3F2FD}

/* 专区 */
.stats-card{background:linear-gradient(135deg,#E3F2FD,#bbdefb);border:1px solid #90CAF9;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.stats-card:hover{border-color:#1565C0;box-shadow:0 2px 8px rgba(21,101,192,.15)}
.stats-card h4{font-size:14px;color:#1565C0;margin-bottom:6px}
.stats-card .stats-val{font-size:28px;font-weight:800;color:#1565C0}
.stats-card .stats-sub{font-size:12px;color:#9e9e9e}

/* === 通用板块 === */
.section{background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);padding:24px;margin-bottom:20px}
.section-title{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 #eef4fc}
.section-title::before{content:'';width:3px;height:18px;background:#1565C0;border-radius:2px}
.spot{scroll-margin-top:80px}
.title-badge{font-size:24px;margin-right:6px;vertical-align:middle}

/* === 三列网格 === */
.triple{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.triple-item{padding:20px 16px;background:#fafcff;border:1px solid #eef4fc;border-radius:6px;text-align:center}
.triple-item .triple-ico{font-size:32px;margin-bottom:8px}
.triple-item h5{font-size:14px;color:#3a3a3a;margin-bottom:4px}
.triple-item p{font-size:12px;color:#888}

/* === 注册步骤 === */
.howto{display:flex;gap:20px}
.howto-step{flex:1;text-align:center;position:relative;padding:20px 12px;background:#fafcff;border:1px solid #eef4fc;border-radius:6px}
.howto-step+.howto-step::after{content:'\2192';position:absolute;left:-16px;top:50%;transform:translateY(-50%);font-size:18px;color:#1565C0}
.howto-badge{width:36px;height:36px;margin:0 auto 10px;background:linear-gradient(135deg,#1E88E5,#1565C0);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700}
.howto-step h5{font-size:14px;color:#3a3a3a;margin-bottom:4px}
.howto-step small{font-size:12px;color:#9e9e9e}

/* === 两列网格 === */
.dual{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.dual-item{display:flex;gap:12px;padding:16px;background:#fafcff;border:1px solid #eef4fc;border-radius:6px;align-items:flex-start}
.dual-item .dual-ico{font-size:24px;flex-shrink:0}
.dual-item h5{font-size:14px;color:#3a3a3a;margin-bottom:4px}
.dual-item p{font-size:12px;color:#888;line-height:1.6}

/* === 推广任务卡片 === */
.mission-list{display:flex;flex-direction:column;gap:12px}
.mission{padding:16px 18px;background:#fafcff;border:1px solid #eef4fc;border-radius:6px;display:flex;gap:14px;align-items:flex-start}
.mission .mission-label{flex-shrink:0;padding:4px 12px;background:linear-gradient(135deg,#1E88E5,#1565C0);color:#fff;border-radius:3px;font-size:13px;font-weight:600;white-space:nowrap}
.mission .mission-body h5{font-size:15px;color:#3a3a3a;margin-bottom:4px}
.mission .mission-body p{font-size:13px;color:#666;line-height:1.7}

/* === FAQ === */
.faq-section{display:flex;flex-direction:column;gap:12px}
.faq-entry{padding:14px 16px;background:#fafcff;border:1px solid #eef4fc;border-radius:6px}
.faq-entry .faq-q{font-size:14px;font-weight:600;color:#3a3a3a;margin-bottom:6px}
.faq-entry .faq-a{font-size:13px;color:#666;line-height:1.7}

/* === 介绍文 === */
.rich-text{font-size:14px;color:#666;margin-bottom:18px;line-height:1.9}
.step-guide{font-size:14px;color:#666;margin-bottom:16px}
.note{margin-top:16px;padding:12px 16px;background:#E3F2FD;border:1px solid #90CAF9;border-radius:4px;font-size:13px;color:#888}

/* === 下载区 === */
.download-row{display:flex;gap:16px}
.download-box{flex:1;text-align:center;padding:24px 16px;background:#fafcff;border:1px solid #eef4fc;border-radius:8px}
.download-box .download-icon{font-size:36px;margin-bottom:10px}
.download-box h5{font-size:15px;color:#3a3a3a;margin-bottom:4px}
.download-box .download-meta{font-size:12px;color:#9e9e9e;margin-bottom:12px}
.download-link{display:inline-block;padding:8px 24px;background:linear-gradient(135deg,#1E88E5,#1565C0);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer}
.download-link:hover{opacity:.9}
.qrcode-row{display:flex;align-items:center;justify-content:center;gap:24px;padding:20px;margin-top:16px}
.qrcode-cell{width:120px;height:120px;background:#eef4fc;border:1px solid #e8f0fa;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:12px;color:#9e9e9e}
.download-remark{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}
.widget-invite{background:linear-gradient(135deg,#E3F2FD,#bbdefb);border:1px solid #90CAF9;text-align:center}
.widget-invite .widget-title{font-size:15px;color:#1565C0;margin-bottom:10px}
.widget-invite .widget-code{font-size:24px;font-weight:800;color:#1565C0;letter-spacing:1px;font-family:"Courier New",monospace;margin:8px 0}
.widget-invite .widget-action{width:100%;padding:10px;background:linear-gradient(135deg,#1E88E5,#1565C0);color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer}
.widget-invite .widget-remark{font-size:11px;color:#aaa;margin-top:8px}
.widget-head{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 #eef4fc}
.widget-head::before{content:'';width:3px;height:16px;background:#1565C0;border-radius:2px}
.rank-list{display:flex;flex-direction:column;gap:10px}
.rank-entry{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid #f5f5f5;font-size:13px}
.rank-entry:last-child{border-bottom:none}
.rank-label{padding:1px 8px;border-radius:3px;font-size:11px;flex-shrink:0;margin-left:8px}
.label-hot{background:#ffeaea;color:#c62828;border:1px solid #ef9a9a}
.label-new{background:#e8f5e9;color:#2e7d32;border:1px solid #a5d6a7}
.label-rec{background:#e3f2fd;color:#1565c0;border:1px solid #90caf9}

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

/* === 友链 === */
.partners{max-width:1200px;margin:0 auto;padding:20px 24px;display:flex;align-items:center;gap:16px;font-size:13px;color:#9e9e9e;flex-wrap:wrap}
.partners b{color:#666;white-space:nowrap}
.partners a{color:#888}
.partners a:hover{color:#1565C0}

/* === 底部 === */
.page-footer{background:#2c2c2c;color:#9e9e9e;padding:24px;text-align:center;font-size:13px}
.page-footer a{color:#bbb}
.page-footer a:hover{color:#1565C0}
.page-footer .footer-nav{margin-bottom:10px}
.page-footer .footer-info{font-size:12px;color:#777;line-height:2}

/* === 响应式 === */
@media(max-width:900px){
  .layout{flex-direction:column}
  .side-col{width:100%}
  .intro{flex-direction:column;text-align:center}
  .stats-card{width:100%}
  .invite-area{justify-content:center}
  .intro-actions{justify-content:center}
  .triple{grid-template-columns:repeat(2,1fr)}
  .howto{flex-wrap:wrap}
  .howto-step+.howto-step::after{display:none}
  .dual{grid-template-columns:1fr}
  .download-row{flex-direction:column}
  .nav-links{display:none}
}
@media(max-width:480px){
  .triple{grid-template-columns:1fr}
  .toolbar{display:none}
  .path{display:none}
}