/* B70：照设计稿 Main.dc.html（刚打开）/ QR.dc.html（出码后）。不连外部字体。 */
:root{
  --base:#0E1517;--panel:#162024;--card:#141E21;--line:#22313A;--chip:#2A3A3F;--ink:#E7EDEB;--soft:#D3DFDD;--sub:#A3B3B4;--mute:#8FA1A2;--amber:#F0B547;--ok:#5BC08A;--dark:#1A1205;
  --num:"Bahnschrift","DIN Alternate","Roboto Condensed","Arial Narrow",sans-serif;
  --cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;background:#0A1012;color:var(--ink);font-family:var(--cn);-webkit-font-smoothing:antialiased}
[hidden]{display:none!important}
a{color:var(--amber)}a:hover{color:#FFD27A}
.page{max-width:420px;margin:0 auto;padding:0 0 28px;background:var(--base);min-height:100vh;display:flex;flex-direction:column}
.brand{display:flex;align-items:center;gap:10px;padding:22px 24px 0;font-size:15px;font-weight:700;letter-spacing:1px}
.brand i{display:inline-block;width:9px;height:9px;border:2px solid var(--amber);transform:rotate(45deg)}
.brand a{color:inherit;text-decoration:none}
.scan-page:not([data-state="idle"]) .idle-only{display:none!important}
.scan-page[data-state="idle"] .run-only{display:none!important}

/* 刚打开：大字 + 三个小标签 */
.scan-hero{padding:40px 24px 0;display:flex;flex-direction:column;gap:14px}
.scan-kicker{margin:0;font-size:13px;font-weight:500;letter-spacing:3px;color:var(--amber)}
.scan-hero h1{margin:0;font-size:36px;line-height:1.25;font-weight:900;letter-spacing:-.5px}
.scan-hero h1 span{display:block}
.scan-hero h1 em{font-style:normal;color:var(--amber)}
.scan-lede{margin:0;font-size:15px;line-height:1.7;color:var(--sub)}
.scan-tags{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 0;padding:0;list-style:none}
.scan-tags li{display:flex;align-items:center;gap:6px;padding:7px 12px;border:1px solid var(--chip);border-radius:999px;background:var(--card);font-size:13px;color:var(--soft)}

/* 面板本身不再是盒子，里面各块自己排；顺序按状态用 order 调 */
.scan-panel{display:flex;flex-direction:column;background:none;border:0;padding:0;text-align:left}
.scan-page[data-state="idle"] #scan-group-note{order:1}
.scan-page[data-state="idle"] #scan-logout{order:2}
.scan-page:not([data-state="idle"]) .scan-launch{order:1}
.scan-page:not([data-state="idle"]) #scan-group-note{order:2}
.scan-page:not([data-state="idle"]) .scan-faq{order:3}
.scan-page:not([data-state="idle"]) #scan-logout{order:4}

/* 卡片：QQ/微信 + 生成按钮 */
.scan-launch{margin:28px 16px 0;padding:18px;background:var(--panel);border:1px solid var(--line);border-radius:22px;display:flex;flex-direction:column;gap:14px}
.scan-page:not([data-state="idle"]) .scan-launch{margin:20px 16px 0;padding:0;background:none;border:0}
.scan-login{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;padding:4px;background:#0F181B;border-radius:13px}
.scan-login button{height:48px;border:0;border-radius:10px;background:transparent;color:var(--sub);font:inherit;font-size:15px;font-weight:700;cursor:pointer}
.scan-login button[aria-pressed="true"]{background:var(--amber);color:var(--dark)}
.scan-login button:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.scan-login button:disabled{opacity:.65;cursor:wait}
.btn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;font:inherit;text-align:center;text-decoration:none;cursor:pointer;border:0;border-radius:16px;background:var(--amber);color:var(--dark)}
.btn:hover,.btn:visited{color:var(--dark)}
.btn:disabled{opacity:.65;cursor:wait}
.btn:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
#scan-start{height:58px;font-size:18px;font-weight:900;letter-spacing:2px}
.launch-note{margin:0;text-align:center;font-size:13px;color:var(--mute)}

/* 刚打开：扫完会怎样 */
.scan-how{padding:38px 24px 0;display:flex;flex-direction:column;gap:16px}
.scan-how h2,.scan-faq h2{margin:0;font-size:18px;font-weight:700;color:var(--ink)}
.scan-how ol{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:0;padding:0;list-style:none}
.scan-how li{display:flex;flex-direction:column;align-items:center;gap:10px;padding:18px 8px 16px;background:var(--card);border:1px solid var(--line);border-radius:18px;text-align:center}
.scan-how li.how-key{border-color:#3A3320}
.how-icon{display:flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:50%;background:rgba(240,181,71,.12)}
.how-no{font-size:11px;font-weight:700;letter-spacing:1px;color:var(--mute)}
.how-text{font-size:14px;font-weight:700;line-height:1.4}

/* 出码后：三段进度条 + 第几步 + 大标题 */
.scan-progress{padding:28px 24px 0;display:flex;flex-direction:column;gap:12px}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;margin:0}
.steps .bar{display:none}
.st{height:4px;border-radius:4px;background:#263439;font-size:0;line-height:0;color:transparent;overflow:hidden}
.st i{display:none}
.st.done,.st.now{background:var(--amber)}
.step-count{margin:0;font-size:13px;color:var(--mute)}
#scan-veil{padding:12px 24px 0}
.scan-page[data-state="idle"] #scan-veil{padding:0}
.scan-page[data-state="idle"] #scan-status{display:none}
.status{margin:0;font-size:20px;line-height:1.35;font-weight:700}
.scan-panel[data-state="waiting"] .status,.scan-panel[data-state="scanned"] .status{font-size:28px;line-height:1.25;font-weight:900}
.sub{font-size:13px;color:var(--mute);line-height:1.6}
#scan-state-note:empty{display:none}
#scan-state-note{margin-top:6px}
.spin{width:44px;height:44px;margin:18px 0 6px;border-radius:50%;border:4px solid #34474C;border-top-color:var(--amber);animation:r 1s linear infinite}
@keyframes r{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spin{animation:none}}

/* 白卡片里的二维码，倒计时贴卡片下沿 */
.scope{margin:20px 24px 0;padding:22px;background:#F6F3EC;border-radius:24px;display:flex;flex-direction:column;align-items:center;gap:14px}
.scope>span{display:none}
.qr{width:min(216px,100%);aspect-ratio:1;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden}
.qr img{display:block;width:100%;height:100%;object-fit:contain}
.timer{display:block;text-align:center;margin:0;font-size:13px;line-height:1.4;color:#4F5E60}
.timer::before{content:"";display:inline-block;vertical-align:-2px;margin-right:6px;width:14px;height:14px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%234F5E60' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='9'/%3E%3Cpath d='M12 7v5l3 2'/%3E%3C/svg%3E") center/contain no-repeat}
.timer:empty{display:none}
.timer b{font-family:var(--num);font-weight:400}

/* 保存按钮（只在手机上） + 小字提示 */
#scan-save{height:54px;margin:16px 24px 0;width:auto;font-size:17px;font-weight:900;letter-spacing:1px}
.scan-page:not([data-device="mobile"]) #scan-save{display:none!important}
#scan-save-help{margin:8px 24px 0;text-align:center}
.scan-guide{margin:10px 24px 0;text-align:center;font-size:13px;line-height:1.6;color:var(--mute)}
.scan-guide p{margin:0}
.scan-page[data-device="mobile"] .guide-pc,.scan-page:not([data-device="mobile"]) .guide-phone{display:none}
.btn.ghost{height:44px;margin:12px 24px 0;width:auto;background:transparent;border:1px solid var(--chip);border-radius:14px;color:var(--soft);font-size:15px;font-weight:500}
.scan-app-note{margin:14px 16px 0;padding:8px 12px;border-radius:12px;background:#0F181B;font-size:12px;line-height:1.6;color:var(--sub)}
.scan-app-note b{color:var(--soft);font-weight:600}

/* 扫完 QQ 会弹出这个 */
.scan-confirm{margin:26px 16px 0;padding:18px;background:var(--card);border:1px solid var(--line);border-radius:22px;display:flex;gap:16px;align-items:flex-start}
.confirm-shot:empty{display:none}
.confirm-shot img{flex-shrink:0;display:block;width:112px;height:200px;object-fit:cover;object-position:top;border-radius:14px;border:1px solid var(--chip)}
.confirm-body{display:flex;flex-direction:column;gap:12px;min-width:0;flex:1}
.confirm-title{margin:0;font-size:16px;font-weight:700;line-height:1.4}
.confirm-checks{display:flex;flex-direction:column;gap:9px;margin:0;padding:0;list-style:none}
.confirm-checks li{display:flex;gap:8px;align-items:flex-start;font-size:14px;line-height:1.5;color:var(--soft)}
.confirm-checks svg{flex-shrink:0;margin-top:3px}
.confirm-tip{margin:0;padding:10px 12px;border-radius:12px;background:#0F181B;font-size:12.5px;line-height:1.6;color:var(--sub)}

/* 加群那行 */
.scan-group-note{margin:0;padding:28px 24px 0;text-align:center;font-size:13px;color:var(--mute)}
.scan-page:not([data-state="idle"]) .scan-group-note{padding-top:26px}

/* 常见问题：折叠，默认第 1 问展开 */
.scan-faq{padding:40px 24px 0;display:flex;flex-direction:column}
.scan-faq h2{margin-bottom:8px}
.scan-faq .faq-item{border-top:1px solid var(--line)}
.scan-faq .faq-item:last-child{border-bottom:1px solid var(--line)}
.scan-faq .faq-question{min-height:52px;padding:14px 0;color:var(--ink);font-size:15px;font-weight:500;display:flex;align-items:center;justify-content:space-between;gap:12px;cursor:pointer;list-style:none}
.scan-faq .faq-question::-webkit-details-marker{display:none}
.scan-faq .faq-question svg{flex-shrink:0;transition:transform .2s}
.scan-faq .faq-item[open] .faq-question svg{transform:rotate(180deg)}
.scan-faq .faq-question:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.scan-faq .faq-answer{margin:0;padding:0 0 16px;font-size:14px;line-height:1.75;color:var(--sub)}
@media (prefers-reduced-motion:reduce){.scan-faq .faq-question svg{transition:none}}

/* 退出提示（保留原样式） */
.safe{font-size:13px;line-height:1.7;color:#CFE6D8;background:rgba(79,178,122,.08);border:1px solid #2C4A3A;border-radius:10px;padding:10px 12px}
#scan-logout{margin:16px 16px 0}

/* 页脚免责声明 + 用户协议/隐私说明 */
.legal-footer{margin-top:auto;padding:22px 24px 0;text-align:center;font-size:12px;line-height:1.7;color:#849798}
.legal-footer a{color:#849798}

/* B44: reuse the group control styles and wait.js copy handler. */
#scan-group-note a{color:var(--amber);text-decoration:none}
.qq-number{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;padding:0;border:0;border-radius:2px;background:none;color:inherit;font:inherit;text-decoration:underline;text-underline-offset:3px;cursor:pointer;overflow-wrap:anywhere}
.qq-number:focus-visible{outline:2px solid currentColor;outline-offset:3px}
.qq-copy-status{display:block;margin-top:6px;font-size:12px;line-height:1.6;overflow-wrap:anywhere}
.qq-help{margin:8px 0 14px;padding:12px;border:1px solid #284659;border-radius:10px;background:#102331;color:#c6dbe7;font-size:12px;line-height:1.9;overflow-wrap:anywhere}
.qq-help a{color:#69dcef;white-space:nowrap}

@media(max-width:350px){.scan-hero h1{font-size:30px}.scan-launch{padding:14px}.scan-how ol{gap:6px}.scan-how li{padding:14px 4px 12px}.scope{padding:16px}}