:root{--navy-950:#061a2b;--navy-900:#0b2d49;--navy-800:#104565;--blue:#176ef5;--cyan:#1cc2cf;--ink:#102647;--muted:#6a7d94;--line:#d5e1ed}
*{box-sizing:border-box}html,body{min-height:100%}body{margin:0;color:var(--ink);background:#eaf2f8;font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;-webkit-font-smoothing:antialiased}button,input{font:inherit}button{cursor:pointer}
.login-page{min-height:100vh;display:grid;place-items:center;padding:28px;background:radial-gradient(circle at 13% 13%,rgba(255,255,255,.98),transparent 30%),linear-gradient(135deg,#edf5fa 0%,#dbe8f2 100%)}
.login-shell{width:min(1240px,96vw);height:min(790px,calc(100vh - 56px));display:grid;grid-template-columns:1.06fr .94fr;grid-template-rows:minmax(0,1fr);overflow:hidden;background:#fff;border:1px solid rgba(130,158,180,.28);border-radius:26px;box-shadow:0 30px 80px rgba(24,61,91,.2)}
.login-visual{position:relative;min-height:0;overflow:hidden;color:#fff;background:#02090f}
.login-visual img{width:100%;height:100%;display:block;object-fit:cover;object-position:center}
.login-visual-caption{position:absolute;left:0;right:0;bottom:0;padding:30px 34px;background:linear-gradient(180deg,rgba(4,20,36,0) 0%,rgba(4,20,36,.84) 72%)}
.login-visual-caption span{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border:1px solid rgba(255,255,255,.32);border-radius:999px;background:rgba(255,255,255,.1);font-size:13px;font-weight:700;letter-spacing:.05em}
.login-visual-caption h3{margin:15px 0 8px;font-size:27px;line-height:1.45}
.login-visual-caption p{margin:0;max-width:540px;color:#c6dbe7;line-height:1.8;font-size:14px}
.login-panel{display:flex;flex-direction:column;justify-content:center;min-height:0;overflow-y:auto;padding:42px 68px 24px}.brand-lockup{display:flex;align-items:center;gap:12px;margin-bottom:27px}.brand-mark{width:50px;height:50px;display:grid;place-items:center;color:#fff;background:linear-gradient(145deg,#176ef5,#18a9b5);border-radius:14px;font-size:22px;font-weight:900;box-shadow:0 9px 22px rgba(23,110,245,.2)}.brand-lockup strong,.brand-lockup small{display:block}.brand-lockup strong{font-size:19px;letter-spacing:.05em}.brand-lockup small{margin-top:2px;color:#8292a4;font-size:11px;letter-spacing:.08em}.welcome-copy p{margin:0 0 3px;color:#2572d3;font-size:11px;font-weight:900;letter-spacing:.15em}.welcome-copy>span{display:block;margin-top:5px;color:var(--muted);font-size:14px}.auth-switch{display:flex;align-items:center;gap:8px}.auth-switch button{padding:0;color:#93a0b1;background:transparent;border:0;font-size:30px;font-weight:900}.auth-switch button.active{color:var(--ink)}.auth-switch span{margin:0;color:#c0cad4;font-size:24px}
.role-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin:25px 0 20px}.role-tab{min-height:54px;display:flex;align-items:center;justify-content:center;gap:8px;color:#64768a;background:#f5f8fb;border:1px solid var(--line);border-radius:12px;font-weight:800}.role-tab span{width:28px;height:28px;display:grid;place-items:center;color:#6c8096;background:#fff;border:1px solid #d8e2ec;border-radius:8px;font-size:12px}.role-tab:hover{border-color:#8cb4e7}.role-tab.active{color:#155dc1;background:#edf5ff;border-color:#77a8e8;box-shadow:inset 0 -3px 0 #2678e5}.role-tab.active span{color:#fff;background:#2678e5;border-color:#2678e5}
.login-form{display:grid;gap:14px}.login-form>label>span{display:block;margin-bottom:7px;color:#3b5068;font-size:13px;font-weight:800}.field-wrap{position:relative}.field-wrap input{width:100%;height:50px;padding:0 14px 0 45px;color:var(--ink);background:#f8fafc;border:1px solid #ccd9e5;border-radius:11px;outline:none}.field-wrap input:focus{background:#fff;border-color:#5a96e4;box-shadow:0 0 0 4px rgba(44,119,221,.1)}.field-wrap>i{position:absolute;left:15px;top:50%;width:18px;height:18px;transform:translateY(-50%);color:#6f849a;font-style:normal;font-weight:900}.person-icon::before{content:"";position:absolute;left:5px;top:0;width:8px;height:8px;border:1.8px solid currentColor;border-radius:50%}.person-icon::after{content:"";position:absolute;left:2px;bottom:0;width:14px;height:8px;border:1.8px solid currentColor;border-bottom:0;border-radius:9px 9px 0 0}.lock-icon::before{content:"";position:absolute;left:3px;top:8px;width:13px;height:10px;border:1.8px solid currentColor;border-radius:3px}.lock-icon::after{content:"";position:absolute;left:6px;top:1px;width:7px;height:10px;border:1.8px solid currentColor;border-radius:8px 8px 0 0}
.form-options{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:1px}.form-options .remember{display:flex;align-items:center;gap:6px;color:#65788d;font-size:12px}.form-options input{accent-color:#176ef5}.form-options button{padding:3px;color:#276bc5;background:transparent;border:0;font-size:12px}.login-notice{margin:-3px 0 0;padding:9px 11px;color:#9a5a20;background:#fff7ea;border:1px solid #edd7b9;border-radius:8px;font-size:12px}.login-button{min-height:52px;display:flex;align-items:center;justify-content:center;margin-top:1px;color:#fff;background:linear-gradient(105deg,#176ef5,#178fac);border:0;border-radius:11px;font-weight:900;box-shadow:0 9px 20px rgba(23,110,245,.2)}.login-button:hover{transform:translateY(-1px);filter:saturate(1.12)}.demo-hint{display:flex;align-items:center;justify-content:center;gap:8px;margin:17px 0 0;color:#8797a8;font-size:11px}.demo-hint i{width:7px;height:7px;background:#43dcae;border-radius:50%;box-shadow:0 0 0 4px rgba(67,220,174,.12)}.login-panel footer{display:flex;justify-content:space-between;gap:14px;margin-top:auto;padding-top:24px;color:#a0adba;font-size:10px}
@media(max-width:900px){.login-page{padding:0;place-items:stretch}.login-shell{width:100%;min-height:100vh;grid-template-columns:1fr;border:0;border-radius:0}.login-visual{min-height:315px;max-height:390px}.login-visual img{object-position:center 38%}.login-visual-caption{padding:16px 20px}.login-visual-caption span{font-size:12px;padding:6px 11px}.login-visual-caption h3{font-size:19px;margin:9px 0 4px}.login-visual-caption p{display:none}.login-panel{min-height:650px;padding:34px 28px 22px}}
@media(max-width:520px){.role-tabs{gap:6px}.role-tab{gap:4px;font-size:13px}.role-tab span{width:24px;height:24px}.login-panel footer{flex-direction:column;text-align:center}}
/* [MOD: 整合-2026-09-05-4.1.2：登录预填灰字，用户输入后恢复正文色；注册模式管理员置灰] */
.field-wrap input.prefill{color:#99a8ba;font-weight:600}
.role-tab.dimmed{opacity:.45;cursor:not-allowed}