/* ==================== Login 页面专属样式（改动后同步 bump HTML 引用的 ?v=）==================== */

* { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            font-family: 'Inter Variable', 'Noto Sans SC Variable', 'Source Han Sans SC', '思源黑体', 'PingFang SC', sans-serif;
            min-height: 100vh;
        }
        .login-container {
            display: flex;
            justify-content: flex-end;
            align-items: center;
            height: 100vh;
            width: 100vw;
            background: #12141f center/cover no-repeat;
            position: relative;
            overflow: hidden;
        }

        /* 左上角品牌标识 */
        .brand-header {
            position: absolute;
            top: 4rem;
            left: 4rem;
            display: flex;
            align-items: center;
            gap: 1.2rem;
            z-index: 10;
        }
        .brand-logo { display: flex; align-items: center; }
        .brand-logo img { filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1)); }
        .brand-text { display: flex; flex-direction: column; justify-content: center; }
        .brand-text h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0;
            line-height: 1.2;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }
        /* Lite 角标：与 index 头部 .brand-lite 同款（css/index.css） */
        .brand-lite {
            display: inline-block;
            vertical-align: 8px;
            margin-left: 5px;
            padding: 1px 5px;
            border-radius: 20px;
            background: linear-gradient(135deg, var(--color-primary, #FF6901), var(--color-primary-dark, #E55D00));
            color: #fff;
            font-size: 9px;
            font-weight: 800;
            letter-spacing: .3px;
            line-height: 1.5;
        }
        .brand-text p {
            font-size: 0.85rem;
            color: var(--color-primary);
            margin: 0.3rem 0 0 0;
            line-height: 1.2;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
        }

        /* 登录区域 */
        .login-section {
            width: 100%;
            max-width: 480px;
            margin-right: 8%;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 2rem;
            position: relative;
            z-index: 1;
        }
        .login-box {
            position: relative;
            z-index: 1;
            width: 100%;
            max-width: 380px;
            padding: 2.5rem;
            border-radius: 24px;
            background: rgba(255, 255, 255, 0.50);
            backdrop-filter: blur(20px) saturate(180%);
            -webkit-backdrop-filter: blur(20px) saturate(180%);
            border: 1px solid rgba(255, 255, 255, 0.8);
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(255, 255, 255, 0.9) inset;
        }
        .login-box h1 {
            font-size: 1.6rem;
            color: var(--color-primary);
            margin-bottom: 1.5rem;
            text-align: left;
        }
        /* 表单组间距（sf-login.css 覆盖项） */
        .login-box .form-group { margin-bottom: 1.5rem; }
        .login-box .form-group:last-of-type { margin-bottom: 0; }
        /* 记住密码行：贴近按钮，弱化与上方密码框的间隔层级 */
        .login-box .form-group.remember-row { margin-bottom: -0.6rem; }
        .login-box .remember-row + .btn { margin-top: 1.25rem; }   /* 平衡上下间距 */
        .remember-row .checkbox-label { font-size: 0.85rem; color: var(--text-2); line-height: 18px; }
        /* 对勾几何居中已上收到 SenflareUI 唯一定义；此处仅保留字体度量微调 */
        .login-box .remember-row .checkmark {
            transform: translateY(calc(-50% - 0.5px));
        }
        .input-wrapper { position: relative; display: flex; align-items: center; }
        .input-icon {
            position: absolute;
            left: 1.2rem;
            width: 20px;
            height: 20px;
            color: var(--text-3);
            pointer-events: none;
            z-index: 1;
        }
        .login-box .form-group input {
            width: 100%;
            height: 40px;
            padding: 0 1rem 0 3.2rem;
            background: var(--card-bg, #fff);
            border: 1px solid var(--border-1);
            border-radius: 50px;
            color: var(--text-1);
            font-size: 1rem;
            line-height: 38px;
            transition: all 0.3s ease;
            box-sizing: border-box;
        }
        .login-box .form-group input::placeholder { color: var(--text-3); }
        .login-box .form-group input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px var(--color-primary-bg-10);
        }
        .input-wrapper:focus-within .input-icon { color: var(--color-primary); }

        /* 登录按钮（主题渐变，覆盖 SenflareUI 通用 .btn 底色） */
        .login-box .btn {
            width: 100%;
            height: 40px;
            padding: 0 1rem;
            margin-top: 2rem;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border: none;
            color: #fff;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            line-height: 40px;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 4px 15px var(--color-primary-shadow);
            box-sizing: border-box;
        }
        /* hover 与通用 .btn-primary 一致（css/SenflareUI.css） */
        .login-box .btn:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px var(--color-primary-shadow);
        }
        .login-box .btn:disabled { opacity: 0.7; cursor: not-allowed; }

        /* 壁纸轮播层：交叉淡入 + 激活期间缓慢放大（对齐 Firefly banner 的 effect-zoom 观感）。
           首帧由下方 HTML 静态渲染第 1 张；其余由 js/login-ui.js 接管 */
        .bg-slides { position: absolute; inset: 0; overflow: hidden; }
        .bg-slide {
            position: absolute;
            inset: 0;
            background: center / cover no-repeat;
            opacity: 0;
            transition: opacity 1.2s ease-in-out;
        }
        .bg-slide.active { opacity: 1; }

        /* 断点与页面布局 lg 对齐：≥1024px 用横版，窄屏用竖版（图源见 js/login-ui.js） */
        @media (min-width: 1024px) { .only-mobile { display: none; } }
        @media (max-width: 1023.98px) { .only-desktop { display: none; } }

        @media (max-width: 768px) {
            .login-container { justify-content: center; }
            .login-section { margin-right: 0; }
            .brand-header { top: 1.5rem; left: 1.5rem; }
        }