(function smsBowerFloatingTool() {
  if (window.__smsBowerFloatingToolInstalled) {
    return;
  }
  window.__smsBowerFloatingToolInstalled = true;

  const PANEL_ID = 'smsbower-floating-phone-tool';
  const FALLBACK_COUNTRIES = [
    { id: 0, label: 'Russia' }, { id: 1, label: 'Ukraine' }, { id: 2, label: 'Kazakhstan' },
    { id: 3, label: 'China' }, { id: 4, label: 'Philippines' }, { id: 5, label: 'Myanmar' },
    { id: 6, label: 'Indonesia' }, { id: 7, label: 'Malaysia' }, { id: 10, label: 'Vietnam' },
    { id: 12, label: 'USA virtual' }, { id: 16, label: 'United Kingdom' }, { id: 22, label: 'India' },
    { id: 32, label: 'Romania' }, { id: 36, label: 'Canada' }, { id: 43, label: 'Germany' },
    { id: 52, label: 'Thailand' }, { id: 73, label: 'France' }, { id: 78, label: 'Turkey' },
    { id: 151, label: 'Japan' }, { id: 187, label: 'USA' }
  ];
  const COUNTRY_ALIASES = {
    0: '俄罗斯 俄国 Russia RU', 1: '乌克兰 Ukraine UA', 2: '哈萨克斯坦 Kazakhstan KZ',
    3: '中国 China CN', 4: '菲律宾 Philippines PH', 5: '缅甸 Myanmar Burma MM',
    6: '印度尼西亚 印尼 Indonesia ID', 7: '马来西亚 Malaysia MY', 10: '越南 Vietnam VN',
    12: '美国虚拟 USA virtual United States US', 16: '英国 United Kingdom Britain GB UK',
    22: '印度 India IN', 32: '罗马尼亚 Romania RO', 36: '加拿大 Canada CA',
    43: '德国 Germany DE', 52: '泰国 Thailand TH', 73: '法国 France FR',
    78: '土耳其 Turkey TR', 151: '日本 Japan JP', 187: '美国 USA United States US'
  };
  let allCountries = FALLBACK_COUNTRIES.slice();
  let selectedCountries = [{ id: 6, label: 'Indonesia' }];
  let latestSettings = null;
  let panel = null;
  let dragState = null;
  let codePollToken = 0;
  let autoRotateObserver = null;
  let autoRotateTimer = null;
  let autoRotateInFlight = false;
  let autoRotateEnabled = true;
  let lastErroredPhoneNumber = '';
  const AUTO_ROTATE_DEBOUNCE_MS = 800;

  function stopCodePolling() {
    codePollToken += 1;
  }

  function isVisible(el) {
    if (!el) return false;
    const style = window.getComputedStyle(el);
    const rect = el.getBoundingClientRect();
    return style.visibility !== 'hidden' && style.display !== 'none' && rect.width > 0 && rect.height > 0;
  }

  function scoreInput(el) {
    const text = [el.type, el.name, el.id, el.placeholder, el.autocomplete, el.getAttribute('aria-label')].join(' ').toLowerCase();
    let score = 0;
    if (el === document.activeElement) score += 100;
    if (/phone|mobile|tel|手机号|電話|电话|号码|number/.test(text)) score += 50;
    if (el.type === 'tel') score += 40;
    if (el.type === 'text' || !el.type) score += 5;
    if (el.readOnly || el.disabled) score -= 1000;
    if (!isVisible(el)) score -= 1000;
    return score;
  }

  function findBestInput() {
    const inputs = Array.from(document.querySelectorAll('input, textarea'))
      .filter((el) => !panel || !panel.contains(el));
    const ranked = inputs.map((el) => ({ el, score: scoreInput(el) })).sort((a, b) => b.score - a.score);
    return ranked[0]?.score > -100 ? ranked[0].el : null;
  }

  function setValue(el, value) {
    el.focus();
    const proto = el instanceof HTMLTextAreaElement ? HTMLTextAreaElement.prototype : HTMLInputElement.prototype;
    const desc = Object.getOwnPropertyDescriptor(proto, 'value');
    if (desc?.set) desc.set.call(el, value); else el.value = value;
    el.dispatchEvent(new Event('input', { bubbles: true }));
    el.dispatchEvent(new Event('change', { bubbles: true }));
  }

  function fillPhone(phoneNumber) {
    const input = findBestInput();
    if (!input) throw new Error('当前页面没有找到可填写的输入框。请先点一下目标输入框再获取。');
    setValue(input, phoneNumber);
    return { phoneNumber, input, tag: input.tagName, name: input.name || '', id: input.id || '' };
  }

  function scoreSubmitButton(button, input) {
    if (!button || panel?.contains(button)) return -1000;
    const style = window.getComputedStyle(button);
    const rect = button.getBoundingClientRect();
    if (button.disabled || style.visibility === 'hidden' || style.display === 'none' || rect.width <= 0 || rect.height <= 0) return -1000;
    const text = [
      button.innerText, button.textContent, button.value, button.name, button.id,
      button.getAttribute('aria-label'), button.getAttribute('title')
    ].join(' ').toLowerCase();
    let score = 0;
    if (/下一步|继续|发送验证码|获取验证码|发送代码|发送短信|验证|提交|next|continue|send\s*(code|sms)?|verify|submit/.test(text)) score += 100;
    if (/取消|返回|back|cancel|关闭|close|skip|跳过|resend|重发/.test(text)) score -= 140;
    if (button.type === 'submit') score += 35;
    if (input) {
      const inputRect = input.getBoundingClientRect();
      const dy = rect.top - inputRect.bottom;
      const dx = Math.abs((rect.left + rect.right) / 2 - (inputRect.left + inputRect.right) / 2);
      if (dy >= -20 && dy < 260) score += Math.max(0, 60 - dy / 5);
      if (dx < 360) score += Math.max(0, 30 - dx / 20);
    }
    return score;
  }

  function findSubmitButton(input) {
    const formButton = input?.form?.querySelector('button[type="submit"], input[type="submit"]');
    const candidates = Array.from(document.querySelectorAll('button, input[type="button"], input[type="submit"], [role="button"]'))
      .filter((el) => !panel || !panel.contains(el));
    if (formButton && !candidates.includes(formButton)) candidates.unshift(formButton);
    const ranked = candidates.map((el) => ({ el, score: scoreSubmitButton(el, input) })).sort((a, b) => b.score - a.score);
    return ranked[0]?.score > 30 ? ranked[0].el : null;
  }

  async function autoSubmitPhone(input) {
    await sleep(250);
    const button = findSubmitButton(input);
    if (button) {
      button.scrollIntoView?.({ block: 'center', inline: 'center' });
      button.click();
      return { method: 'button', text: String(button.innerText || button.textContent || button.value || button.getAttribute('aria-label') || '').trim().slice(0, 40) };
    }
    const form = input?.form;
    if (form) {
      if (typeof form.requestSubmit === 'function') form.requestSubmit();
      else form.dispatchEvent(new Event('submit', { bubbles: true, cancelable: true }));
      return { method: 'form' };
    }
    input?.dispatchEvent(new KeyboardEvent('keydown', { key: 'Enter', code: 'Enter', bubbles: true }));
    input?.dispatchEvent(new KeyboardEvent('keyup', { key: 'Enter', code: 'Enter', bubbles: true }));
    return { method: 'enter' };
  }

  function send(type, payload = {}) {
    return chrome.runtime.sendMessage({ type, payload }).then((res) => {
      if (!res?.ok) throw new Error(res?.error || '操作失败');
      return res;
    });
  }

  function normalizeCountry(country) {
    const id = Math.floor(Number(country?.id));
    return { id, label: String(country?.label || `Country #${id}`).trim() };
  }

  function sameCountry(a, b) {
    return Number(a?.id) === Number(b?.id);
  }

  function getCountrySearchText(country = {}) {
    const id = Math.floor(Number(country?.id));
    return [country?.label, id, COUNTRY_ALIASES[id] || ''].join(' ').toLowerCase();
  }

  function sleep(ms) {
    return new Promise((resolve) => setTimeout(resolve, ms));
  }

  function $(selector) {
    return panel?.querySelector(selector) || null;
  }

  function setStatus(text, isError = false) {
    const node = $('.sb-status');
    if (!node) return;
    node.textContent = text;
    node.style.color = isError ? '#fecaca' : '#bbf7d0';
  }

  async function copyText(text) {
    try {
      await navigator.clipboard.writeText(text);
    } catch {}
  }

  function collectSettings() {
    return {
      provider: $('.sb-provider')?.value || 'sms-bower',
      apiKey: $('.sb-api-key')?.value.trim() || '',
      baseUrl: $('.sb-base-url')?.value.trim() || '',
      lubanBaseUrl: $('.sb-luban-base-url')?.value.trim() || '',
      fiveSimBaseUrl: $('.sb-five-sim-base-url')?.value.trim() || '',
      serviceCode: $('.sb-service-code')?.value.trim() || 'dr',
      lubanServiceId: $('.sb-luban-service-id')?.value.trim() || '',
      fiveSimCountry: $('.sb-five-sim-country')?.value.trim() || 'vietnam',
      fiveSimOperator: $('.sb-five-sim-operator')?.value.trim() || 'any',
      fiveSimProduct: $('.sb-five-sim-product')?.value.trim() || 'openai',
      minPrice: $('.sb-min-price')?.value.trim() || '',
      maxPrice: $('.sb-max-price')?.value.trim() || '',
      countries: selectedCountries,
    };
  }

  async function saveSettings() {
    stopCodePolling();
    const res = await send('SAVE_SETTINGS', collectSettings());
    latestSettings = res.settings;
    selectedCountries = (res.settings.countries || []).map(normalizeCountry);
    renderCountries();
    setStatus('设置已保存');
  }

  async function refreshCountries() {
    stopCodePolling();
    await saveSettings();
    setStatus('正在刷新国家列表...');
    const res = await send('FETCH_COUNTRIES');
    allCountries = (res.countries || []).map(normalizeCountry).filter((c) => c.id >= 0);
    renderCountries();
    setStatus('国家列表已刷新');
  }

  async function fetchAndFill(options = {}) {
    stopCodePolling();
    const btn = $('.sb-fetch');
    if (btn) btn.disabled = true;
    try {
      if (!options.skipSave) await saveSettings();
      const reason = options.reason || 'manual_replace';
      const releaseAction = options.releaseAction || (reason === 'phone_number_used' ? 'ban' : 'cancel');
      setStatus(releaseAction === 'ban' ? '正在释放被拒号码并获取新号...' : '正在取消上一个激活并获取新号...');
      const res = await send('FETCH_NEXT_PHONE', { reason, releaseAction });
      const phone = res.activation.phoneNumber;
      await copyText(phone);
      const filled = fillPhone(phone);
      $('.sb-current-phone').textContent = phone;
      lastErroredPhoneNumber = '';
      $('.sb-current-id').textContent = res.activation.activationId;
      const codeNode = $('.sb-current-code');
      if (codeNode) codeNode.textContent = '无';
      const submit = await autoSubmitPhone(filled.input);
      setStatus(`已切换、填入、复制并自动提交：${phone}${submit.text ? `（${submit.text}）` : ''}`);
    } catch (error) {
      setStatus(error.message || String(error), true);
    } finally {
      if (btn) btn.disabled = false;
    }
  }

  function getPageTextForPhoneError() {
    const clone = document.body?.cloneNode(true);
    if (!clone) return '';
    clone.querySelector(`#${PANEL_ID}`)?.remove();
    return String(clone.innerText || clone.textContent || '').slice(-12000);
  }

  function updateAutoRotateToggle() {
    const btn = $('.sb-auto-toggle');
    if (!btn) return;
    btn.textContent = autoRotateEnabled ? '自动切号：开' : '自动切号：关';
    btn.classList.toggle('sb-auto-on', autoRotateEnabled);
  }

  function updateProviderFields() {
    const provider = $('.sb-provider')?.value || 'sms-bower';
    const isLuban = provider === 'luban-sms';
    panel?.querySelectorAll('.sb-smsbower-only').forEach((el) => { el.style.display = isLuban ? 'none' : ''; });
    panel?.querySelectorAll('.sb-luban-only').forEach((el) => { el.style.display = isLuban ? '' : 'none'; });
  }

  function getCurrentPhoneNumber() {
    const phone = $('.sb-current-phone')?.textContent || latestSettings?.activeActivation?.phoneNumber || '';
    return String(phone).trim();
  }

  async function rotateFromClassifiedError(classified, source = 'manual') {
    const currentPhone = getCurrentPhoneNumber();
    if (autoRotateInFlight) return false;
    if (source === 'auto' && (!currentPhone || currentPhone === '无')) return false;
    if (source === 'auto' && currentPhone === lastErroredPhoneNumber) return false;
    autoRotateInFlight = true;
    try {
      lastErroredPhoneNumber = currentPhone;
      setStatus(source === 'auto'
        ? `当前号码 ${currentPhone} 触发${classified.reason === 'phone_number_used' ? '已使用' : '验证码发送失败'}，正在自动切下一个号...`
        : '检测到手机号错误，正在切号...');
      await fetchAndFill({ reason: classified.reason, releaseAction: classified.releaseAction, skipSave: true });
      return true;
    } finally {
      autoRotateInFlight = false;
    }
  }

  async function detectAndRotate(source = 'manual') {
    const text = getPageTextForPhoneError();
    const classified = await send('CLASSIFY_PHONE_ERROR', { text });
    if (!classified.matched) {
      if (source !== 'auto') setStatus('未检测到明确的手机号错误。', true);
      return false;
    }
    return rotateFromClassifiedError(classified, source);
  }

  function scheduleAutoRotateCheck() {
    if (!autoRotateEnabled || autoRotateInFlight) return;
    if (autoRotateTimer) clearTimeout(autoRotateTimer);
    autoRotateTimer = setTimeout(() => {
      autoRotateTimer = null;
      detectAndRotate('auto').catch((error) => setStatus(error.message || String(error), true));
    }, AUTO_ROTATE_DEBOUNCE_MS);
  }

  function startAutoRotateObserver() {
    if (autoRotateObserver) return;
    autoRotateObserver = new MutationObserver((mutations) => {
      if (!autoRotateEnabled) return;
      if (mutations.some((m) => m.target && panel && panel.contains(m.target))) return;
      scheduleAutoRotateCheck();
    });
    if (document.body) {
      autoRotateObserver.observe(document.body, { childList: true, subtree: true, characterData: true });
    }
    window.addEventListener('focus', scheduleAutoRotateCheck);
  }

  async function cancelActive() {
    stopCodePolling();
    try {
      setStatus('正在取消当前激活...');
      await send('CANCEL_ACTIVE');
      $('.sb-current-phone').textContent = '无';
      $('.sb-current-id').textContent = '无';
      const codeNode = $('.sb-current-code');
      if (codeNode) codeNode.textContent = '无';
      setStatus('当前激活已取消');
    } catch (error) {
      setStatus(error.message || String(error), true);
    }
  }

  async function fetchAndCopyCode() {
    stopCodePolling();
    const token = codePollToken;
    const btn = $('.sb-code');
    if (btn) {
      btn.disabled = true;
      btn.textContent = '获取中...';
    }
    try {
      let round = 0;
      while (token === codePollToken) {
        round += 1;
        setStatus(`正在查询验证码，第 ${round} 次...`);
        try {
          const res = await send('FETCH_ACTIVE_CODE');
          if (token !== codePollToken) return;
          const codeNode = $('.sb-current-code');
          if (codeNode) codeNode.textContent = res.code || '无';
          setStatus(`已获取验证码：${res.code}`);
          return;
        } catch (error) {
          if (token !== codePollToken) return;
          const message = error.message || String(error);
          if (/未知消息\s*[:：]\s*FETCH_ACTIVE_CODE/i.test(message)) {
            throw new Error('后台脚本还是旧版，没加载验证码接口。请到扩展管理页点“重新加载”，然后刷新当前网页并重新打开悬浮窗。');
          }
          if (/验证码还没到|STATUS_WAIT_CODE|NO_CODE|WAIT/i.test(message)) {
            setStatus(`验证码还没到，1 秒后继续查询...（第 ${round} 次）`);
            await sleep(1000);
            continue;
          }
          throw error;
        }
      }
    } catch (error) {
      if (token === codePollToken) setStatus(error.message || String(error), true);
    } finally {
      if (token === codePollToken && btn) {
        btn.disabled = false;
        btn.textContent = '获取验证码';
      }
    }
  }

  function updateProviderFields() {
    const provider = $('.sb-provider')?.value || 'sms-bower';
    panel?.querySelectorAll('.sb-smsbower-only').forEach((el) => { el.style.display = provider === 'sms-bower' ? '' : 'none'; });
    panel?.querySelectorAll('.sb-luban-only').forEach((el) => { el.style.display = provider === 'luban-sms' ? '' : 'none'; });
    panel?.querySelectorAll('.sb-five-sim-only').forEach((el) => { el.style.display = provider === '5sim' ? '' : 'none'; });
    const minPrice = $('.sb-min-price');
    if (minPrice) {
      minPrice.closest('label').style.display = provider === '5sim' ? 'none' : '';
      if (provider === '5sim') minPrice.value = '';
    }
    const apiKey = $('.sb-api-key');
    if (apiKey) apiKey.placeholder = provider === '5sim' ? '5SIM Bearer Token' : 'API Key / apikey';
  }

  function renderCountries() {
    const selectedBox = $('.sb-selected-countries');
    const list = $('.sb-country-list');
    const keyword = ($('.sb-country-search')?.value || '').trim().toLowerCase();
    if (!selectedBox || !list) return;
    selectedBox.innerHTML = '';
    selectedCountries.forEach((country, index) => {
      const chip = document.createElement('span');
      chip.className = 'sb-chip';
      chip.textContent = `${index + 1}. ${country.label} #${country.id}`;
      const close = document.createElement('button');
      close.type = 'button';
      close.textContent = '×';
      close.addEventListener('click', () => {
        selectedCountries = selectedCountries.filter((x) => !sameCountry(x, country));
        renderCountries();
      });
      chip.appendChild(close);
      selectedBox.appendChild(chip);
    });
    list.innerHTML = '';
    allCountries
      .filter((c) => !keyword || getCountrySearchText(c).includes(keyword))
      .slice(0, 120)
      .forEach((country) => {
        const btn = document.createElement('button');
        btn.type = 'button';
        btn.className = 'sb-country-item' + (selectedCountries.some((x) => sameCountry(x, country)) ? ' selected' : '');
        btn.innerHTML = `<span>${escapeHtml(country.label)}</span><span>#${country.id}</span>`;
        btn.addEventListener('click', () => {
          if (selectedCountries.some((x) => sameCountry(x, country))) {
            selectedCountries = selectedCountries.filter((x) => !sameCountry(x, country));
          } else {
            selectedCountries.push(country);
          }
          renderCountries();
        });
        list.appendChild(btn);
      });
  }

  function escapeHtml(value) {
    return String(value || '').replace(/[&<>'"]/g, (ch) => ({ '&': '&amp;', '<': '&lt;', '>': '&gt;', "'": '&#39;', '"': '&quot;' }[ch]));
  }

  function injectStyles() {
    if (document.getElementById('smsbower-floating-phone-tool-style')) return;
    const style = document.createElement('style');
    style.id = 'smsbower-floating-phone-tool-style';
    style.textContent = `
      #${PANEL_ID} { position: fixed; z-index: 2147483647; right: 18px; top: 80px; width: 390px; max-height: calc(100vh - 110px); overflow: auto; box-sizing: border-box; padding: 12px; border: 1px solid #334155; border-radius: 14px; background: #0f172a; color: #e5e7eb; box-shadow: 0 18px 60px rgba(0,0,0,.45); font: 13px/1.45 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; }
      #${PANEL_ID} * { box-sizing: border-box; }
      #${PANEL_ID} .sb-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 10px; cursor: move; user-select: none; }
      #${PANEL_ID} .sb-title { font-size: 16px; font-weight: 700; }
      #${PANEL_ID} .sb-close { width: 28px; height: 28px; padding: 0; border: 1px solid #334155; border-radius: 8px; color: #e5e7eb; background: #1f2937; cursor: pointer; }
      #${PANEL_ID} label { display: grid; gap: 4px; margin: 7px 0; color: #cbd5e1; }
      #${PANEL_ID} input, #${PANEL_ID} select { width: 100%; padding: 7px 9px; border: 1px solid #334155; border-radius: 8px; color: #e5e7eb; background: #111827; outline: none; }
      #${PANEL_ID} input:focus { border-color: #38bdf8; box-shadow: 0 0 0 2px rgba(56,189,248,.18); }
      #${PANEL_ID} .sb-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
      #${PANEL_ID} .sb-country-box { margin-top: 9px; padding: 9px; border: 1px solid #253244; border-radius: 10px; background: #111827; }
      #${PANEL_ID} .sb-country-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 7px; }
      #${PANEL_ID} button { padding: 7px 10px; border: 1px solid #334155; border-radius: 8px; color: #e5e7eb; background: #1f2937; cursor: pointer; font: inherit; }
      #${PANEL_ID} button:hover { background: #273449; }
      #${PANEL_ID} button:disabled { opacity: .55; cursor: not-allowed; }
      #${PANEL_ID} .sb-primary { background: #2563eb; border-color: #3b82f6; }
      #${PANEL_ID} .sb-primary:hover { background: #1d4ed8; }
      #${PANEL_ID} .sb-selected-countries { display: flex; flex-wrap: wrap; gap: 6px; min-height: 24px; margin: 7px 0; }
      #${PANEL_ID} .sb-chip { display: inline-flex; gap: 5px; align-items: center; padding: 4px 7px; border-radius: 999px; background: #0e7490; color: #ecfeff; }
      #${PANEL_ID} .sb-chip button { padding: 0 3px; border: 0; background: transparent; }
      #${PANEL_ID} .sb-country-list { max-height: 150px; overflow: auto; border: 1px solid #253244; border-radius: 8px; }
      #${PANEL_ID} .sb-country-item { display: flex; justify-content: space-between; gap: 8px; width: 100%; padding: 7px 9px; border: 0; border-bottom: 1px solid #1f2937; border-radius: 0; background: #0b1220; text-align: left; }
      #${PANEL_ID} .sb-country-item.selected { background: #123044; color: #bae6fd; }
      #${PANEL_ID} .sb-top-fetch { width: 100%; margin: 2px 0 10px; font-weight: 700; }
      #${PANEL_ID} .sb-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 11px; }
      #${PANEL_ID} .sb-code-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 8px; }
      #${PANEL_ID} .sb-current { margin-top: 10px; padding: 9px; border-radius: 10px; background: #020617; color: #cbd5e1; }
      #${PANEL_ID} code { color: #67e8f9; user-select: all; }
      #${PANEL_ID} .sb-hint { margin: 7px 0 0; color: #94a3b8; font-size: 12px; }
      #${PANEL_ID} .sb-status { color: #bbf7d0; }
      #${PANEL_ID} .sb-auto-on { border-color: #22c55e; color: #bbf7d0; }
    `;
    document.documentElement.appendChild(style);
  }

  async function createPanel() {
    injectStyles();
    panel = document.createElement('div');
    panel.id = PANEL_ID;
    panel.innerHTML = `
      <div class="sb-head">
        <span class="sb-title">接码填号</span>
        <button class="sb-close" type="button" title="隐藏">×</button>
      </div>
      <button class="sb-fetch sb-primary sb-top-fetch" type="button">获取并填入</button>
      <button class="sb-auto-toggle sb-auto-on" type="button">自动切号：开</button>
      <label>接码平台 <select class="sb-provider"><option value="sms-bower">SMSBower</option><option value="luban-sms">Luban SMS</option><option value="5sim">5SIM</option></select></label>
      <label>API Key <input class="sb-api-key" type="password" placeholder="API Key / apikey" /></label>
      <label class="sb-smsbower-only">SMSBower API 地址 <input class="sb-base-url" type="url" /></label>
      <label class="sb-luban-only">Luban API 地址 <input class="sb-luban-base-url" type="url" /></label>
      <label class="sb-five-sim-only">5SIM API 地址 <input class="sb-five-sim-base-url" type="url" /></label>
      <div class="sb-row">
        <label class="sb-smsbower-only">SMSBower 项目 <input class="sb-service-code" type="text" value="dr" /></label>
        <label class="sb-luban-only">Luban service_id <input class="sb-luban-service-id" type="text" placeholder="如 121949" /></label>
        <label class="sb-five-sim-only">5SIM 国家 <input class="sb-five-sim-country" type="text" placeholder="vietnam / any" /></label>
        <label class="sb-five-sim-only">5SIM 运营商 <input class="sb-five-sim-operator" type="text" placeholder="any" /></label>
        <label class="sb-five-sim-only">5SIM 产品 <input class="sb-five-sim-product" type="text" placeholder="openai" /></label>
        <label>最低价 <input class="sb-min-price" type="number" min="0" step="0.0001" placeholder="5SIM 不支持" /></label>
        <label>最高价 <input class="sb-max-price" type="number" min="0" step="0.0001" placeholder="可空" /></label>
      </div>
      <section class="sb-country-box sb-smsbower-only">
        <div class="sb-country-head"><strong>国家顺序</strong><button class="sb-refresh" type="button">刷新国家</button></div>
        <input class="sb-country-search" type="search" placeholder="搜索国家 / ID" />
        <div class="sb-selected-countries"></div>
        <div class="sb-country-list"></div>
        <p class="sb-hint">优先级：价低优先；同价按国家选择顺序。</p>
      </section>
      <div class="sb-actions">
        <button class="sb-save" type="button">保存</button>
        <button class="sb-rotate-detect" type="button">检测报错换号</button>
        <button class="sb-rotate-used" type="button">已使用换号</button>
        <button class="sb-cancel" type="button">取消当前</button>
      </div>
      <div class="sb-code-row">
        <button class="sb-code sb-primary" type="button">获取验证码</button>
        <button class="sb-copy-code" type="button">复制验证码</button>
      </div>
      <section class="sb-current">
        <div>当前号码：<code class="sb-current-phone">无</code></div>
        <div>激活ID：<code class="sb-current-id">无</code></div>
        <div>验证码：<code class="sb-current-code">无</code></div>
        <div>状态：<span class="sb-status">就绪</span></div>
      </section>
    `;
    document.documentElement.appendChild(panel);
    bindPanelEvents();
    await loadSettingsIntoPanel();
    updateAutoRotateToggle();
    startAutoRotateObserver();
    scheduleAutoRotateCheck();
  }

  function bindPanelEvents() {
    $('.sb-close').addEventListener('click', () => { panel.style.display = 'none'; });
    $('.sb-save').addEventListener('click', saveSettings);
    $('.sb-provider').addEventListener('change', updateProviderFields);
    $('.sb-fetch').addEventListener('click', () => fetchAndFill({ reason: 'manual_replace', releaseAction: 'cancel' }));
    $('.sb-auto-toggle').addEventListener('click', () => {
      autoRotateEnabled = !autoRotateEnabled;
      updateAutoRotateToggle();
      setStatus(autoRotateEnabled ? '自动切号已开启' : '自动切号已关闭');
      if (autoRotateEnabled) scheduleAutoRotateCheck();
    });
    $('.sb-rotate-detect').addEventListener('click', () => detectAndRotate('manual'));
    $('.sb-rotate-used').addEventListener('click', () => fetchAndFill({ reason: 'phone_number_used', releaseAction: 'ban' }));
    $('.sb-cancel').addEventListener('click', cancelActive);
    $('.sb-code').addEventListener('click', fetchAndCopyCode);
    $('.sb-copy-code').addEventListener('click', async () => {
      const code = $('.sb-current-code')?.textContent || '';
      if (code && code !== '无') {
        await copyText(code);
        setStatus(`验证码已复制：${code}`);
      } else {
        setStatus('当前没有验证码可复制，请先点“获取验证码”。', true);
      }
    });
    $('.sb-refresh').addEventListener('click', refreshCountries);
    $('.sb-country-search').addEventListener('input', renderCountries);
    const head = $('.sb-head');
    head.addEventListener('mousedown', (event) => {
      if (event.target.closest('button')) return;
      const rect = panel.getBoundingClientRect();
      dragState = { x: event.clientX, y: event.clientY, left: rect.left, top: rect.top };
      event.preventDefault();
    });
    window.addEventListener('mousemove', (event) => {
      if (!dragState) return;
      panel.style.left = `${Math.max(0, dragState.left + event.clientX - dragState.x)}px`;
      panel.style.top = `${Math.max(0, dragState.top + event.clientY - dragState.y)}px`;
      panel.style.right = 'auto';
    });
    window.addEventListener('mouseup', () => { dragState = null; });
  }

  async function loadSettingsIntoPanel() {
    const res = await send('GET_SETTINGS');
    latestSettings = res.settings;
    allCountries = (res.fallbackCountries || FALLBACK_COUNTRIES).map(normalizeCountry);
    selectedCountries = (latestSettings.countries || []).map(normalizeCountry);
    $('.sb-provider').value = latestSettings.provider || 'sms-bower';
    $('.sb-api-key').value = latestSettings.apiKey || '';
    $('.sb-base-url').value = latestSettings.baseUrl || '';
    $('.sb-luban-base-url').value = latestSettings.lubanBaseUrl || 'https://lubansms.com/v2/api';
    $('.sb-five-sim-base-url').value = latestSettings.fiveSimBaseUrl || 'https://5sim.net';
    $('.sb-service-code').value = latestSettings.serviceCode || 'dr';
    $('.sb-luban-service-id').value = latestSettings.lubanServiceId || '';
    $('.sb-five-sim-country').value = latestSettings.fiveSimCountry || 'vietnam';
    $('.sb-five-sim-operator').value = latestSettings.fiveSimOperator || 'any';
    $('.sb-five-sim-product').value = latestSettings.fiveSimProduct || 'openai';
    $('.sb-min-price').value = latestSettings.minPrice || '';
    $('.sb-max-price').value = latestSettings.maxPrice || '';
    if (latestSettings.activeActivation) {
      $('.sb-current-phone').textContent = latestSettings.activeActivation.phoneNumber || '无';
      $('.sb-current-id').textContent = latestSettings.activeActivation.activationId || '无';
      const codeNode = $('.sb-current-code');
      if (codeNode) codeNode.textContent = latestSettings.activeActivation.lastCode || '无';
    }
    updateProviderFields();
    renderCountries();
  }

  async function togglePanel() {
    try {
      if (!panel || !document.documentElement.contains(panel)) {
        await createPanel();
      } else {
        panel.style.display = panel.style.display === 'none' ? 'block' : 'none';
        if (panel.style.display !== 'none') await loadSettingsIntoPanel();
      }
    } catch (error) {
      alert(`SMSBower 悬浮窗打开失败：${error.message || error}`);
    }
  }

  chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
    (async () => {
      if (message?.type === 'FILL_PHONE') {
        const phoneNumber = String(message.phoneNumber || '').trim();
        if (!phoneNumber) throw new Error('缺少手机号。');
        return { ok: true, ...fillPhone(phoneNumber) };
      }
      if (message?.type === 'TOGGLE_FLOAT_PANEL') {
        await togglePanel();
        return { ok: true };
      }
      return undefined;
    })().then((result) => {
      if (result !== undefined) sendResponse(result);
    }).catch((error) => sendResponse({ ok: false, error: error.message || String(error) }));
    return true;
  });
})();