/* JOHN SMS sign-in pages.
   /login  (中控 / 客服): form on the left, a violet product panel on the right.
   /admin  (platform):    one centered card on a dark grid. */
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body.jn-auth{
  --jn-accent:#7c3aed;--jn-accent-2:#4f46e5;--jn-accent-ink:#6d28d9;--jn-accent-soft:#f1ecfe;
  --jn-text:#19152b;--jn-muted:#6b6584;--jn-line:#e4e0ef;--jn-field:#f8f7fc;
  min-height:100vh;color:var(--jn-text);
  font:14px/1.55 "Inter","PingFang SC","Microsoft YaHei","Segoe UI",system-ui,sans-serif;
}
.jn-auth svg{fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.jn-auth-top{display:flex;align-items:center;justify-content:space-between;gap:16px}
.jn-auth-brand{display:inline-flex;align-items:center;gap:10px;color:inherit;text-decoration:none}
.jn-auth-brand img{width:34px;height:34px;border-radius:9px}
.jn-auth-brand b{display:block;font-size:16px;font-weight:800;letter-spacing:.04em;line-height:1.15}
.jn-auth-brand small{display:block;font-size:11.5px;opacity:.7}
.jn-lang{display:inline-flex;padding:3px;border-radius:9px;background:rgba(124,58,237,.08)}
.jn-lang button{height:28px;padding:0 12px;border:0;border-radius:7px;background:transparent;color:var(--jn-muted);font:inherit;font-size:12.5px;cursor:pointer}
html[lang="zh-CN"] .jn-lang [data-admin-language="zh-CN"],html[lang="en-US"] .jn-lang [data-admin-language="en-US"]{background:#fff;color:var(--jn-accent-ink);font-weight:600;box-shadow:0 1px 3px rgba(25,21,43,.12)}
.jn-auth h1{margin:0;font-size:28px;font-weight:800;letter-spacing:-.01em}
.jn-lead{margin:6px 0 26px;color:var(--jn-muted)}
.jn-error{display:flex;align-items:center;gap:8px;margin:0 0 18px;padding:10px 12px;border-radius:10px;background:#fff1f1;color:#b4232a;font-size:13px}
.jn-error svg{flex:0 0 18px;width:18px;height:18px}
.jn-form{display:grid;gap:16px}
.jn-form label{display:grid;gap:7px}
.jn-form label>span{font-size:13px;font-weight:600}
.jn-form input:not([type=checkbox]){height:46px;padding:0 14px;border:1px solid var(--jn-line);border-radius:10px;background:var(--jn-field);color:var(--jn-text);font:inherit;outline:0;transition:border-color .15s,box-shadow .15s,background .15s}
.jn-form input:not([type=checkbox]):focus{border-color:var(--jn-accent);background:#fff;box-shadow:0 0 0 4px rgba(124,58,237,.14)}
.jn-form input::placeholder{color:#a9a3bf}
.jn-remember{display:flex!important;grid-auto-flow:column;align-items:center;gap:8px!important;justify-content:start;color:var(--jn-muted);font-size:13px}
.jn-remember span{font-weight:400!important}
.jn-remember input{width:16px;height:16px;margin:0;accent-color:var(--jn-accent)}
.jn-form button{height:48px;margin-top:6px;border:0;border-radius:10px;background:var(--jn-accent);color:#fff;font:inherit;font-size:15px;font-weight:700;letter-spacing:.2em;cursor:pointer;transition:background .15s,transform .15s}
.jn-form button:hover{background:var(--jn-accent-ink)}
.jn-form button:active{transform:translateY(1px)}
.jn-auth-foot{color:var(--jn-muted);font-size:12px}

/* ── /login: form | product panel ── */
.jn-auth-user{display:grid;grid-template-columns:minmax(380px,1fr) minmax(0,1.15fr);background:#fff}
.jn-auth-main{display:flex;flex-direction:column;min-height:100vh;padding:28px clamp(24px,5vw,72px)}
.jn-auth-form{width:100%;max-width:380px;margin:auto 0;padding:40px 0}
.jn-auth-visual{position:relative;display:flex;flex-direction:column;justify-content:space-between;margin:14px;padding:clamp(32px,4vw,56px);border-radius:24px;overflow:hidden;color:#fff;
  background:radial-gradient(70% 60% at 85% 10%,rgba(255,255,255,.18),rgba(255,255,255,0) 60%),linear-gradient(150deg,#4f46e5 0%,#7c3aed 55%,#5b21b6 100%)}
.jn-auth-visual:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(180deg,#000 0%,transparent 75%)}
.jn-visual-copy{position:relative;max-width:420px}
.jn-visual-copy h2{margin:0;font-size:clamp(26px,2.6vw,36px);font-weight:800;line-height:1.25}
.jn-visual-copy p{margin:12px 0 0;color:rgba(255,255,255,.8);font-size:15px}
.jn-visual-points{position:relative;display:grid;gap:12px;max-width:440px;margin:0;padding:0;list-style:none}
.jn-visual-points li{display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:14px;background:rgba(255,255,255,.1);box-shadow:inset 0 0 0 1px rgba(255,255,255,.16)}
.jn-visual-points i{display:grid;place-items:center;flex:0 0 40px;height:40px;border-radius:11px;background:rgba(255,255,255,.95);color:#6d28d9}
.jn-visual-points i svg{width:20px;height:20px}
.jn-visual-points b{display:block;font-size:15px}
.jn-visual-points small{display:block;margin-top:2px;color:rgba(255,255,255,.78);font-size:13px}

/* ── /admin: centered card on a dark grid ── */
body.jn-auth-admin{display:flex;flex-direction:column;align-items:center;padding:24px clamp(18px,4vw,48px);color:#ece9f7;
  background:radial-gradient(50% 45% at 50% 40%,rgba(124,58,237,.32),rgba(124,58,237,0) 70%),#100d1c}
.jn-auth-admin:before{content:"";position:fixed;inset:0;background-image:radial-gradient(rgba(196,181,253,.16) 1px,transparent 1px);background-size:26px 26px;pointer-events:none}
.jn-auth-admin .jn-auth-top{position:relative;align-self:stretch}
.jn-auth-admin .jn-lang{background:rgba(255,255,255,.08)}
.jn-auth-admin .jn-lang button{color:#b9b2d6}
.jn-auth-card{position:relative;width:100%;max-width:420px;margin:auto;padding:36px 36px 30px;border-radius:18px;background:#fff;color:var(--jn-text);text-align:left;box-shadow:0 30px 80px -30px rgba(0,0,0,.7)}
.jn-card-mark{display:block;width:48px;height:48px;margin-bottom:18px;border-radius:12px}
.jn-secure{display:flex;align-items:center;gap:6px;margin:20px 0 0;color:var(--jn-muted);font-size:12px}
.jn-secure svg{width:15px;height:15px}
.jn-auth-admin .jn-auth-foot{position:relative;color:#8f88ad}

@media (max-width:900px){
  .jn-auth-user{grid-template-columns:1fr}
  .jn-auth-visual{display:none}
  .jn-auth-form{margin:auto}
}
@media (max-width:480px){.jn-auth-card{padding:28px 22px}}