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NGS


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <title>NGS · 登录</title>
  <link rel="stylesheet" href="/assets/bootstrap/css/bootstrap.min.css" />
  <link rel="stylesheet" href="/assets/bootstrap-icons/bootstrap-icons.css" />
  <link rel="stylesheet" href="/assets/app.css" />
  <style>
    .login-page {
      min-height: 100vh;
      display: grid;
      place-items: center;
      padding: 1.5rem;
      background:
        radial-gradient(1200px 600px at 10% -10%, rgba(13,148,136,.22), transparent 55%),
        radial-gradient(900px 500px at 100% 0%, rgba(30,41,59,.18), transparent 50%),
        #f1f5f9;
    }
    .login-card {
      width: min(400px, 100%);
      background: #fff;
      border: 1px solid #e2e8f0;
      border-radius: 14px;
      padding: 1.5rem 1.4rem 1.25rem;
      box-shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
    }
    .login-brand {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      margin-bottom: 1.15rem;
    }
    .login-err {
      display: none;
      font-size: 0.85rem;
      color: #b91c1c;
      background: #fef2f2;
      border: 1px solid #fecaca;
      border-radius: 8px;
      padding: 0.5rem 0.7rem;
      margin-bottom: 0.85rem;
    }
    .login-err.is-on { display: block; }
    .login-captcha {
      display: flex;
      gap: 0.6rem;
      align-items: stretch;
    }
    .login-captcha input { flex: 1; min-width: 0; }
    .login-captcha-img {
      width: 120px;
      height: 40px;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      background: #f8fafc;
      cursor: pointer;
      flex-shrink: 0;
      object-fit: fill;
    }
    .login-captcha-img:hover { border-color: #94a3b8; }
  </style>
</head>
<body>
  <div class="login-page">
    <form class="login-card" id="login-form" autocomplete="on">
      <div class="login-brand">
        <div class="brand-mark">N</div>
        <div>
          <div class="fw-bold lh-1">NGS</div>
          <div class="small text-secondary">管理面板登录</div>
        </div>
      </div>
      <div class="login-err" id="login-err"></div>
      <div class="mb-3">
        <label class="form-label">账号</label>
        <input class="form-control" name="username" id="login-user" required autofocus placeholder="admin" />
      </div>
      <div class="mb-3">
        <label class="form-label">密码</label>
        <input class="form-control" type="password" name="password" id="login-pass" required placeholder="密码" />
      </div>
      <div class="mb-3">
        <label class="form-label">验证码</label>
        <div class="login-captcha">
          <input class="form-control" name="captcha" id="login-captcha" required maxlength="8" autocomplete="off" placeholder="验证码" />
          <img class="login-captcha-img" id="login-captcha-img" src="/api/auth/captcha" alt="验证码" title="点击刷新" />
        </div>
      </div>
      <button type="submit" class="btn btn-primary w-100" id="login-btn">登录</button>
    </form>
  </div>
  <script>
    (async () => {
      try {
        const r = await fetch("/api/auth/me", { credentials: "same-origin" });
        const j = await r.json();
        if (j && j.code === 200) {
          location.replace("/");
          return;
        }
      } catch (_) {}

      const form = document.getElementById("login-form");
      const err = document.getElementById("login-err");
      const btn = document.getElementById("login-btn");
      const captchaImg = document.getElementById("login-captcha-img");
      const captchaInput = document.getElementById("login-captcha");

      function refreshCaptcha() {
        captchaImg.src = "/api/auth/captcha?t=" + Date.now();
        captchaInput.value = "";
        captchaInput.focus();
      }
      captchaImg.addEventListener("click", refreshCaptcha);

      form.addEventListener("submit", async (e) => {
        e.preventDefault();
        err.classList.remove("is-on");
        btn.disabled = true;
        try {
          const res = await fetch("/api/auth/login", {
            method: "POST",
            credentials: "same-origin",
            headers: { "Content-Type": "application/json", Accept: "application/json" },
            body: JSON.stringify({
              username: document.getElementById("login-user").value.trim(),
              password: document.getElementById("login-pass").value,
              captcha: captchaInput.value.trim(),
            }),
          });
          const json = await res.json();
          if (!json || json.code !== 200) {
            throw new Error((json && json.msg) || "登录失败");
          }
          location.replace("/");
        } catch (ex) {
          err.textContent = ex.message || String(ex);
          err.classList.add("is-on");
          refreshCaptcha();
        } finally {
          btn.disabled = false;
        }
      });
    })();
  </script>
</body>
</html>