/* ========== 样式代码位置：登录页，由 web/index.html 内联样式抽离 ========== */
/* ============================================================
           CSS 变量 - 主题系统
           ============================================================ */
        :root {
            --bg-primary: #f5f7fa;
            --bg-card: #ffffff;
            --bg-card-hover: #ffffff;
            --bg-input: #f0f2f5;
            --bg-input-focus: #ffffff;

            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8c8fa9;
            --text-light: #b8bed0;

            --border-color: #e8ecf1;
            --border-color-focus: #4a6cf7;

            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.08);

            --brand-primary: #4a6cf7;
            --brand-primary-dark: #3a5cd9;
            --brand-gradient: linear-gradient(135deg, #4a6cf7, #6a4cf7);

            --success: #2d7a3a;
            --danger: #e74c5e;
            --warning: #f59e0b;

            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --radius-xl: 16px;

            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        [data-theme="dark"] {
            --bg-primary: #0d0d1a;
            --bg-card: #14142a;
            --bg-card-hover: #1a1a30;
            --bg-input: #1a1a30;
            --bg-input-focus: #1a1a3a;

            --text-primary: #e8ecf1;
            --text-secondary: #b8bed0;
            --text-muted: #6a7a8a;
            --text-light: #4a4a6a;

            --border-color: #2a2a4a;
            --border-color-focus: #4a6cf7;

            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
            --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);

            --warning: #f59e0b;
        }

        /* ============================================================
           全局重置
           ============================================================ */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-tap-highlight-color: transparent;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background: radial-gradient(circle at 15% 10%, rgba(74, 108, 247, 0.16), transparent 28%), radial-gradient(circle at 86% 18%, rgba(245, 158, 11, 0.10), transparent 26%), var(--bg-primary);
            color: var(--text-primary);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0;
            transition: background 0.4s, color 0.4s;
            position: relative;
        }
        body.modal-locked { overflow: hidden; }

        body::before {
            content: '';
            position: fixed;
            inset: 18px;
            border: 1px solid rgba(74, 108, 247, 0.08);
            border-radius: 28px;
            pointer-events: none;
        }

        /* 样式代码位置：登录页加载态使用半透明模糊，完成后 0.3 秒恢复清晰。 */
        body.login-loading .login-box,
        body.login-ready .login-box {
            transition: filter 0.3s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.3s cubic-bezier(0.22, 1, 0.36, 1), transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), background 0.4s, border-color 0.4s, box-shadow 0.4s;
        }

        body.login-loading .login-box {
            filter: blur(14px);
            opacity: 0.18;
            transform: scale(0.985);
            pointer-events: none;
        }

        body.login-ready .login-box {
            filter: none;
            opacity: 1;
            transform: none;
            pointer-events: auto;
        }

        ::-webkit-scrollbar { width: 4px; }
        ::-webkit-scrollbar-track { background: transparent; }
        ::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }

        /* ============================================================
           登录容器
           ============================================================ */
        .login-wrapper {
            display: grid;
            place-items: center;
            width: 100%;
            min-height: 100vh;
            min-height: 100dvh;
            padding: 20px;
        }

        .login-box {
            background: color-mix(in srgb, var(--bg-card) 88%, transparent);
            border-radius: 28px;
            padding: 34px 34px 30px;
            width: 100%;
            max-width: 500px;
            border: 1px solid color-mix(in srgb, var(--border-color) 82%, transparent);
            box-shadow: 0 28px 80px rgba(24, 31, 67, 0.16);
            backdrop-filter: blur(22px) saturate(145%);
            -webkit-backdrop-filter: blur(22px) saturate(145%);
            max-height: calc(100vh - 40px);
            max-height: calc(100dvh - 40px);
            overflow-y: auto;
            transition: background 0.4s, border-color 0.4s, box-shadow 0.4s, transform 0.3s;
            position: relative;
            overflow: hidden;
            animation: fadeIn 0.5s ease-out;
        }

        .login-box::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(74, 108, 247, 0.10);
        }

        .login-box::after {
            content: '';
            position: absolute;
            left: -90px;
            bottom: 90px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.10);
        }

        .login-box > * { position: relative; }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(16px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ============================================================
           Loading 状态
           ============================================================ */
        .login-box .init-loading {
            text-align: center;
            padding: 40px 0;
            color: var(--text-muted);
            font-size: 14px;
            display: none;
        }

        .login-box .init-loading .spinner {
            display: inline-block;
            width: 32px;
            height: 32px;
            border: 3px solid var(--border-color);
            border-top-color: var(--brand-primary);
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
            margin-bottom: 12px;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        .login-box .init-loading.show { display: block; }

        .login-box .login-form-container { transition: opacity 0.3s cubic-bezier(0.22, 1, 0.36, 1), filter 0.3s cubic-bezier(0.22, 1, 0.36, 1), transform 0.3s cubic-bezier(0.22, 1, 0.36, 1); }

        .login-box .login-form-container.policy-recorded .policy-check {
            color: var(--success);
        }

        .login-box .login-form-container.policy-recorded .policy-links {
            color: var(--success);
        }

        /* 样式代码位置：已完成首次成功登录的账号隐藏政策确认区。 */
        .policy-consent.policy-consent-recorded {
            display: none;
        }

        .login-box .login-form-container.hidden { opacity: 0; filter: blur(10px); transform: scale(0.99); pointer-events: none; }

        .login-confirm-container { min-height: min(548px, calc(100dvh - 108px)); display: grid; justify-items: center; align-content: center; gap: 10px; text-align: center; transition: opacity 0.3s cubic-bezier(0.22, 1, 0.36, 1), filter 0.3s cubic-bezier(0.22, 1, 0.36, 1), transform 0.3s cubic-bezier(0.22, 1, 0.36, 1); }
        .login-confirm-container.hidden { display: none; }
        .confirm-avatar-halo { width: 172px; height: 172px; border-radius: 50%; display: grid; place-items: center; margin-bottom: 10px; background: radial-gradient(circle, rgba(255,255,255,0.92) 0 39%, rgba(232,236,241,0.84) 40% 58%, rgba(232,236,241,0.42) 59% 74%, rgba(232,236,241,0) 75%); box-shadow: 0 18px 60px rgba(26, 34, 74, 0.10); }
        .confirm-avatar-ring { width: 104px; height: 104px; border-radius: 50%; padding: 6px; background: color-mix(in srgb, var(--bg-card) 92%, transparent); border: 1px solid color-mix(in srgb, var(--border-color) 86%, transparent); box-shadow: 0 18px 36px rgba(26,34,74,0.12), inset 0 1px 0 rgba(255,255,255,0.86); overflow: hidden; }
        .confirm-avatar-ring img { display: block; width: 100%; height: 100%; object-fit: cover; border-radius: 50%; background: var(--bg-input); }
        .confirm-user-name { max-width: 100%; color: var(--text-primary); font-size: 28px; line-height: 1.18; font-weight: 860; overflow-wrap: anywhere; }
        .confirm-user-qq { color: var(--text-light); font-size: 13px; line-height: 1.5; }
        .confirm-online-pill { display: inline-flex; align-items: center; gap: 7px; min-height: 30px; margin-top: 2px; padding: 6px 13px; border-radius: 999px; border: 1px solid rgba(45,122,58,0.18); background: rgba(45,122,58,0.08); color: var(--success); font-size: 12px; font-weight: 760; box-shadow: 0 10px 22px rgba(45,122,58,0.08); }
        .confirm-online-pill span { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 4px rgba(45,122,58,0.10); }
        .confirm-actions { width: 100%; display: grid; gap: 10px; margin-top: 24px; }
        .confirm-primary-btn, .confirm-logout-btn { min-height: 52px; width: 100%; border: none; border-radius: 15px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-family: inherit; font-size: 14px; font-weight: 800; cursor: pointer; transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease, color 0.22s ease; }
        .confirm-primary-btn { color: #fff; background: var(--brand-primary); box-shadow: 0 12px 26px rgba(74,108,247,0.22); }
        .confirm-primary-btn:hover { background: var(--brand-primary-dark); box-shadow: 0 16px 30px rgba(74,108,247,0.28); transform: translateY(-1px); }
        .confirm-logout-btn { color: var(--text-muted); background: color-mix(in srgb, var(--bg-input) 72%, transparent); border: 1px solid color-mix(in srgb, var(--border-color) 76%, transparent); box-shadow: inset 0 1px 0 rgba(255,255,255,0.58); }
        .confirm-logout-btn svg { flex-shrink: 0; color: var(--text-light); }
        .confirm-logout-btn:hover { color: var(--text-secondary); background: color-mix(in srgb, var(--bg-input-focus) 86%, transparent); transform: translateY(-1px); }
        .confirm-copyright { align-self: end; margin-top: 34px; color: var(--text-light); font-size: 11px; line-height: 1.5; }

        /* ============================================================
           【新增】登录成功过渡动画
           ============================================================ */
        /* ============================================================
           品牌标识 - 头像替换图标
           ============================================================ */
        .login-box .logo {
            text-align: center;
            margin-bottom: 28px;
        }

        .login-box .logo .brand-avatar {
            display: inline-block;
            width: 68px;
            height: 68px;
            border-radius: 20px;
            overflow: hidden;
            margin-bottom: 12px;
            box-shadow: 0 14px 32px rgba(74, 108, 247, 0.16), 0 2px 4px rgba(0, 0, 0, 0.02);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

        .login-box .logo .brand-avatar:hover {
            box-shadow: 0 8px 30px rgba(74, 108, 247, 0.12), 0 4px 12px rgba(0, 0, 0, 0.04);
            transform: translateY(-2px) scale(1.02);
        }

        .login-box .logo .brand-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .login-box .logo h1 {
            font-size: 24px;
            font-weight: 840;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            transition: color 0.3s;
        }

        .login-box .logo .subtitle {
            color: var(--text-muted);
            font-size: 13px;
            margin-top: 5px;
            font-weight: 400;
        }

        /* ============================================================
           表单
           ============================================================ */
        .login-box .form-group {
            margin-bottom: 14px;
            position: relative;
        }

        .login-box .form-group label {
            display: block;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-muted);
            margin-bottom: 5px;
            letter-spacing: 0.3px;
            transition: color 0.3s;
        }

        .input-wrapper {
            position: relative;
            display: flex;
            align-items: center;
            background: var(--bg-input);
            border-radius: 14px;
            border: 1.5px solid var(--border-color);
            transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
        }

        .input-wrapper:focus-within {
            border-color: var(--border-color-focus);
            background: var(--bg-input-focus);
            box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.06);
        }

        .input-wrapper input {
            width: 100%;
            padding: 11px 16px;
            border: none;
            background: transparent;
            font-size: 14px;
            outline: none;
            color: var(--text-primary);
            font-weight: 400;
            transition: color 0.3s;
            font-family: inherit;
        }

        .input-wrapper input::placeholder {
            color: var(--text-light);
            font-weight: 400;
        }

        .input-wrapper .avatar-preview {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            margin-right: 10px;
            border-radius: 50%;
            overflow: hidden;
            background: var(--bg-input);
            transition: opacity 0.3s ease, transform 0.3s ease;
            opacity: 0;
            transform: scale(0.8);
            pointer-events: none;
        }

        .input-wrapper .avatar-preview.show {
            opacity: 1;
            transform: scale(1);
        }

        .input-wrapper .avatar-preview img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .input-wrapper .avatar-preview .fallback {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            height: 100%;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-muted);
            background: var(--bg-input);
        }

        .input-wrapper .toggle-pwd {
            flex-shrink: 0;
            width: 34px;
            height: 34px;
            margin-right: 6px;
            border: none;
            background: transparent;
            color: var(--text-light);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: all 0.2s;
        }

        .input-wrapper .toggle-pwd:hover {
            color: var(--text-secondary);
            background: var(--bg-card-hover);
        }

        /* CapsLock 提示 */
        .capslock-warning {
            display: none;
            font-size: 12px;
            color: var(--warning);
            margin-top: 4px;
            align-items: center;
            gap: 4px;
            padding-left: 2px;
        }

        .capslock-warning.show {
            display: flex;
        }

        .capslock-warning svg {
            flex-shrink: 0;
        }

        .login-box .form-options {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin: 2px 0 16px;
            font-size: 13px;
            flex-wrap: wrap;
            gap: 4px;
        }

        .login-box .form-options .remember-me {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--text-muted);
            cursor: pointer;
            user-select: none;
            transition: color 0.2s;
        }

        .login-box .form-options .remember-me:hover {
            color: var(--text-secondary);
        }

        .login-box .form-options .remember-me input[type="checkbox"] {
            width: 16px;
            height: 16px;
            accent-color: var(--brand-primary);
            cursor: pointer;
            flex-shrink: 0;
            border-radius: 4px;
        }

        .login-box .form-options .forgot-link {
            color: var(--text-muted);
            cursor: pointer;
            transition: color 0.2s;
            border: none;
            background: none;
            font-size: 13px;
            font-family: inherit;
            padding: 2px 4px;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .login-box .form-options .forgot-link:hover {
            color: var(--brand-primary);
        }

        .policy-consent { margin: 12px 0 12px; padding: 12px; border: 1px solid var(--border-color); border-radius: 16px; background: var(--bg-input); }
        .policy-check { display: flex; align-items: flex-start; gap: 10px; color: var(--text-secondary); font-size: 12px; line-height: 1.65; cursor: pointer; }
        .policy-check input { width: 16px; height: 16px; margin-top: 2px; accent-color: var(--brand-primary); flex-shrink: 0; }
        .policy-links { color: var(--brand-primary); font-weight: 760; }
        .policy-panels { display: grid; gap: 8px; margin-top: 10px; }
        .policy-panel { padding: 10px 11px; border-radius: 13px; background: var(--bg-card); border: 1px solid var(--border-color); }
        .policy-panel summary { color: var(--text-primary); font-size: 12px; font-weight: 820; cursor: pointer; }
        .policy-panel p { margin-top: 8px; color: var(--text-muted); font-size: 11px; line-height: 1.7; }

        /* ============================================================
           登录按钮
           ============================================================ */
        .login-box .btn-login {
            width: 100%;
            padding: 12px;
            border: none;
            border-radius: 14px;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 15px;
            font-weight: 760;
            transition: all 0.3s;
            cursor: pointer;
            margin-top: 2px;
            letter-spacing: 0.3px;
        }

        .login-box .btn-login:hover:not(:disabled) {
            box-shadow: 0 4px 20px rgba(74, 108, 247, 0.25);
            transform: translateY(-1px);
        }

        /* 【优化】移动端点击反馈 */
        .login-box .btn-login:active:not(:disabled) {
            transform: scale(0.96);
            box-shadow: 0 2px 10px rgba(74, 108, 247, 0.15);
        }

        .login-box .btn-login:disabled {
            opacity: 0.6;
            cursor: not-allowed;
            transform: none !important;
            box-shadow: none !important;
        }

        .login-box .btn-login .btn-content {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        /* ============================================================
           错误消息
           ============================================================ */
        .login-box .error-msg {
            color: var(--danger);
            font-size: 13px;
            text-align: center;
            margin-top: 12px;
            min-height: 20px;
            line-height: 1.5;
            transition: color 0.3s;
        }

        .login-box .error-msg .hint {
            display: block;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* ============================================================
           底部文案 - 无注册引导，保留个性签名
           ============================================================ */
        .login-box .footer-text {
            margin-top: 22px;
            padding: 16px;
            border-top: 1px solid var(--border-color);
            border-radius: 16px;
            background: var(--bg-input);
            text-align: center;
            transition: border-color 0.3s;
        }

        .login-box .footer-text .line-1 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            line-height: 1.7;
            letter-spacing: 0.2px;
        }

        .login-box .footer-text .line-2 {
            font-size: 11px;
            color: var(--text-light);
            margin-top: 4px;
            letter-spacing: 0.2px;
        }

        /* ============================================================
           底部版本号
           ============================================================ */
        .login-box .footer-version {
            margin-top: 14px;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
            text-align: center;
            font-size: 11px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            letter-spacing: 0.2px;
        }

        .login-box .footer-version .status-dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--success);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(0.8); }
        }

        .login-box .footer-version .status-text {
            color: var(--success);
            font-weight: 500;
        }

        /* ============================================================
           找回密码模态框
           ============================================================ */
        .modal-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 20, 38, 0.46);
            backdrop-filter: blur(12px);
            z-index: 9999;
            justify-content: center;
            align-items: center;
            padding: 24px;
            animation: fadeIn 0.25s ease-out;
        }

        .modal-overlay.show {
            display: flex;
        }

        .modal-box {
            background: linear-gradient(145deg, var(--bg-card), var(--bg-card-hover));
            border-radius: 24px;
            max-width: 520px;
            width: 100%;
            padding: 28px;
            border: 1px solid var(--border-color);
            box-shadow: 0 24px 70px rgba(0, 0, 0, 0.18);
            animation: modalSlide 0.3s ease-out;
            position: relative;
            overflow: hidden;
        }

        .modal-box::before {
            content: '';
            position: absolute;
            top: -90px;
            right: -80px;
            width: 170px;
            height: 170px;
            border-radius: 50%;
            background: rgba(74, 108, 247, 0.10);
        }

        .modal-box > * { position: relative; }
        #forgotModal .modal-box { background: linear-gradient(145deg, color-mix(in srgb, var(--bg-card) 96%, transparent), color-mix(in srgb, var(--bg-input) 72%, transparent)); backdrop-filter: blur(20px) saturate(145%); -webkit-backdrop-filter: blur(20px) saturate(145%); }
        /* 样式代码：找回密码弹窗内容超出视口时允许纵向滚动。 */
        .forgot-modal-box { max-width: 560px; max-height: calc(100vh - 48px); overflow-x: hidden; overflow-y: auto; overscroll-behavior: contain; border-color: color-mix(in srgb, var(--brand-primary) 22%, var(--border-color)); box-shadow: 0 28px 80px rgba(35, 47, 92, 0.2), 0 1px 0 rgba(255,255,255,0.72) inset; }
        .forgot-modal-glow { position: absolute; top: -120px; right: -70px; width: 230px; height: 230px; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--brand-primary) 18%, transparent), transparent 68%); pointer-events: none; }
        .forgot-title-icon { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 13px; color: var(--brand-primary); background: var(--info-bg); box-shadow: 0 8px 20px rgba(74,108,247,0.12); }
        .forgot-hero-copy { margin: -2px 0 18px; padding: 14px 16px; border: 1px solid var(--border-color); border-radius: 16px; background: color-mix(in srgb, var(--bg-card) 82%, transparent); }
        .forgot-hero-kicker { color: var(--brand-primary); font-size: 10px; font-weight: 800; letter-spacing: 1.2px; text-transform: uppercase; }
        .forgot-hero-copy .modal-intro { margin-top: 5px; }
        .forgot-guide { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin: 0 0 18px; }
        .forgot-guide span { display: flex; align-items: center; gap: 7px; min-height: 44px; padding: 8px 10px; border: 1px solid var(--border-color); border-radius: 14px; background: var(--bg-input); color: var(--text-secondary); font-size: 11px; line-height: 1.45; }
        .forgot-guide strong { color: var(--brand-primary); font-size: 13px; }

        @keyframes modalSlide {
            from { opacity: 0; transform: scale(0.95) translateY(10px); }
            to { opacity: 1; transform: scale(1) translateY(0); }
        }

        .modal-box .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-color);
        }

        .modal-box .modal-header h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .modal-box .modal-header h3 svg {
            color: var(--brand-primary);
        }

        .modal-intro {
            color: var(--text-muted);
            font-size: 13px;
            line-height: 1.65;
            margin: -4px 0 20px;
        }

        .modal-box .modal-header .close-btn {
            background: none;
            border: none;
            font-size: 22px;
            color: var(--text-muted);
            cursor: pointer;
            padding: 0 4px;
            line-height: 1;
            transition: color 0.2s;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .modal-box .modal-header .close-btn:hover {
            color: var(--text-primary);
        }

        .modal-box .form-group {
            margin-bottom: 14px;
        }

        .modal-box .form-group label {
            display: block;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-muted);
            margin-bottom: 4px;
            letter-spacing: 0.3px;
        }

        .modal-box .form-group input {
            width: 100%;
            padding: 10px 14px;
            border-radius: 14px;
            border: 1px solid var(--border-color);
            background: var(--bg-input);
            font-size: 14px;
            outline: none;
            transition: all 0.25s;
            color: var(--text-primary);
            font-family: inherit;
        }

        .modal-box .form-group input:focus {
            border-color: var(--border-color-focus);
            background: var(--bg-input-focus);
            box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.06);
        }

        .modal-box .form-group .code-wrapper {
            display: flex;
            gap: 10px;
        }

        .modal-box .form-group .code-wrapper input {
            flex: 1;
        }

        .modal-box .form-group .code-wrapper .send-code-btn {
            flex-shrink: 0;
            padding: 10px 16px;
            border: 1px solid var(--border-color);
            border-radius: 14px;
            background: var(--bg-card);
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.25s;
            white-space: nowrap;
            font-family: inherit;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .modal-box .form-group .code-wrapper .send-code-btn:hover:not(:disabled) {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: var(--bg-input-focus);
        }

        .modal-box .form-group .code-wrapper .send-code-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        .modal-box .info-box {
            background: var(--bg-input);
            border-radius: 16px;
            padding: 12px 14px;
            margin-bottom: 14px;
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(74, 108, 247, 0.18);
        }

        .modal-box .info-box svg {
            flex-shrink: 0;
            color: var(--brand-primary);
        }

        .modal-box .info-box strong {
            color: var(--brand-primary);
        }

        .modal-box .modal-actions {
            display: flex;
            gap: 10px;
            margin-top: 6px;
        }

        .modal-box .modal-actions button {
            flex: 1;
            padding: 10px;
            border: none;
            border-radius: 14px;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.25s;
            cursor: pointer;
            font-family: inherit;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }

        .modal-box .modal-actions .btn-confirm {
            background: var(--brand-gradient);
            color: #fff;
            box-shadow: 0 10px 24px rgba(74,108,247,0.20);
        }

        .modal-box .modal-actions .btn-confirm:hover:not(:disabled) {
            box-shadow: 0 4px 16px rgba(74, 108, 247, 0.25);
            transform: translateY(-1px);
        }

        .modal-box .modal-actions .btn-confirm:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        .modal-box .modal-actions .btn-cancel {
            background: var(--bg-input);
            color: var(--text-secondary);
        }

        .modal-box .modal-actions .btn-cancel:hover {
            background: var(--bg-card-hover);
        }

        .modal-box .modal-error {
            color: var(--danger);
            font-size: 13px;
            margin-top: 10px;
            text-align: center;
            min-height: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }

        .modal-box .modal-success {
            color: var(--success);
            font-size: 13px;
            margin-top: 10px;
            text-align: center;
            min-height: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }

        .modal-box .modal-info {
            color: var(--brand-primary);
            font-size: 13px;
            margin-top: 10px;
            text-align: center;
            min-height: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }

        /* 样式代码：前台公告弹窗，支持首次访问阅读锁定。 */
        .announcement-list { display: grid; gap: 12px; max-height: 48vh; overflow-y: auto; padding-right: 4px; }
        .announcement-item { padding: 14px; border: 1px solid var(--border-color); border-radius: 16px; background: var(--bg-input); }
        .announcement-title { color: var(--text-primary); font-size: 15px; font-weight: 700; }
        .announcement-content { margin-top: 8px; color: var(--text-secondary); font-size: 13px; line-height: 1.7; white-space: pre-wrap; }
        .announcement-meta { margin-top: 8px; color: var(--text-muted); font-size: 11px; }
        .announcement-lock-tip { color: var(--text-muted); font-size: 12px; }

        /* ============================================================
           响应式
           ============================================================ */
        @media (max-width: 480px) {
            body { padding: 16px; }
            .login-box {
                padding: 32px 24px 28px;
                border-radius: var(--radius-lg);
            }
            .login-box .logo h1 { font-size: 18px; }
            .login-box .logo .brand-avatar {
                width: 52px;
                height: 52px;
                border-radius: 12px;
            }
            .policy-consent { padding: 10px; }
            .input-wrapper input {
                padding: 10px 14px;
                font-size: 14px;
            }
            .input-wrapper .avatar-preview {
                width: 28px;
                height: 28px;
                margin-right: 6px;
            }
            .login-box .btn-login {
                padding: 11px;
                font-size: 14px;
            }
            .login-box .form-options {
                font-size: 12px;
                flex-wrap: wrap;
                gap: 6px;
            }
            .login-box .footer-text .line-1 {
                font-size: 12px;
            }
            .login-box .footer-text .line-2 {
                font-size: 10px;
            }
            .login-box .footer-version {
                font-size: 10px;
            }
            .login-confirm-container { min-height: min(548px, calc(100dvh - 96px)); }
            .confirm-avatar-halo { width: 150px; height: 150px; }
            .confirm-avatar-ring { width: 94px; height: 94px; }
            .confirm-user-name { font-size: 24px; }
            .confirm-actions { margin-top: 20px; }
            .confirm-copyright { margin-top: 26px; font-size: 10px; }
            .modal-box {
                padding: 24px 20px 20px;
            }
            .forgot-modal-box { max-height: calc(100dvh - 32px); }
            .forgot-guide { grid-template-columns: 1fr; }
            .modal-box .form-group .code-wrapper {
                flex-direction: column;
            }
            .modal-box .form-group .code-wrapper .send-code-btn {
                width: 100%;
                justify-content: center;
            }
            .modal-box .modal-actions {
                flex-direction: column;
            }
            .modal-box .modal-actions button {
                width: 100%;
            }
        }

        @media (max-width: 380px) {
            .login-box { padding: 24px 16px 20px; }
            .login-box .logo h1 { font-size: 16px; }
            .login-box .logo .brand-avatar {
                width: 44px;
                height: 44px;
                border-radius: 10px;
            }
            .confirm-avatar-halo { width: 136px; height: 136px; }
            .confirm-avatar-ring { width: 86px; height: 86px; padding: 5px; }
            .confirm-user-name { font-size: 22px; }
            .input-wrapper input { font-size: 13px; padding: 9px 12px; }
            .input-wrapper .avatar-preview { width: 24px; height: 24px; }
        }

        @media (prefers-reduced-motion: reduce) {
            .login-box,
            .login-box .btn-login,
            .input-wrapper,
            .login-box .form-options .forgot-link,
            .login-box .form-options .remember-me,
            .policy-consent,
            .policy-panel,
            .modal-overlay,
            .modal-box,
            .login-confirm-container,
            .confirm-primary-btn,
            .confirm-logout-btn,
            .avatar-preview {
                transition: none;
            }
        }

        /* ============================================================
           登录页新视觉系统：保留现有元素，统一重做层次与交互状态
           ============================================================ */
        body {
            background-color: var(--bg-primary);
            background-image: linear-gradient(rgba(74, 108, 247, 0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(74, 108, 247, 0.045) 1px, transparent 1px);
            background-size: 32px 32px;
        }

        body::before {
            inset: 0;
            border: 0;
            border-radius: 0;
            background: linear-gradient(180deg, rgba(255,255,255,0.52), transparent 34%, rgba(74,108,247,0.04));
        }

        .login-wrapper {
            min-height: 100vh;
            min-height: 100dvh;
            padding: 20px;
        }

        .login-box {
            max-width: 540px;
            padding: 42px 44px 34px;
            border-radius: 24px;
            border: 1px solid color-mix(in srgb, var(--border-color) 92%, var(--brand-primary));
            background: color-mix(in srgb, var(--bg-card) 94%, transparent);
            box-shadow: 0 24px 70px rgba(26, 34, 74, 0.13), 0 2px 0 rgba(255,255,255,0.84) inset;
            backdrop-filter: blur(18px) saturate(120%);
            -webkit-backdrop-filter: blur(18px) saturate(120%);
            animation: login-panel-in 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
        }

        body.login-confirm-mode .login-box {
            max-width: 448px;
            padding: 0;
            border: 0;
            border-radius: 24px;
            background: transparent;
            box-shadow: none;
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
            overflow: visible;
        }

        body.login-confirm-mode .login-form-container,
        body.login-confirm-mode .init-loading {
            display: none;
        }

        .login-box::before,
        .login-box::after {
            width: 0;
            height: 0;
            background: transparent;
        }

        @keyframes login-panel-in {
            from { opacity: 0; transform: translateY(18px) scale(0.985); }
            to { opacity: 1; transform: translateY(0) scale(1); }
        }

        .login-box .logo {
            margin: 6px 0 30px;
        }

        .login-box .logo .brand-avatar {
            width: 76px;
            height: 76px;
            border-radius: 22px;
            border: 5px solid var(--bg-card);
            box-shadow: 0 0 0 1px var(--border-color), 0 14px 30px rgba(74,108,247,0.18);
        }

        .login-box .logo h1 {
            margin-top: 14px;
            font-size: 25px;
            letter-spacing: 0;
        }

        .login-box .logo .subtitle {
            margin-top: 6px;
            letter-spacing: 0.26em;
            font-size: 10px;
            font-weight: 800;
        }

        .login-box .form-group {
            margin-bottom: 18px;
        }

        .login-box .form-group label {
            margin-bottom: 8px;
            font-size: 12px;
            font-weight: 760;
            letter-spacing: 0.02em;
        }

        .input-wrapper {
            min-height: 52px;
            border-radius: 13px;
            background: var(--bg-input);
            border: 1px solid transparent;
            box-shadow: 0 1px 0 rgba(255,255,255,0.72) inset;
        }

        .input-wrapper:focus-within {
            border-color: var(--border-color-focus);
            background: var(--bg-input-focus);
            box-shadow: 0 0 0 4px rgba(74,108,247,0.10);
        }

        .input-wrapper input {
            padding: 14px 14px 14px 16px;
            font-size: 15px;
        }

        .login-box .form-options {
            margin: 2px 0 20px;
        }

        .policy-consent {
            margin: 14px 0 18px;
            padding: 13px 14px;
            border-radius: 13px;
            background: color-mix(in srgb, var(--bg-input) 80%, transparent);
        }

        .policy-check {
            font-size: 11px;
            line-height: 1.7;
        }

        .policy-panels {
            gap: 6px;
            margin-top: 11px;
        }

        .policy-panel {
            padding: 9px 10px;
            border-radius: 9px;
        }

        .login-box .btn-login {
            min-height: 52px;
            margin-top: 4px;
            border-radius: 13px;
            background: var(--brand-primary);
            box-shadow: 0 10px 20px rgba(74,108,247,0.20);
            font-size: 14px;
        }

        .login-box .btn-login:hover:not(:disabled) {
            background: var(--brand-primary-dark);
            box-shadow: 0 14px 26px rgba(74,108,247,0.26);
        }

        .login-box .footer-text {
            margin-top: 24px;
            padding: 14px 12px;
            border: 1px solid var(--border-color);
            background: transparent;
        }

        .login-box .footer-version {
            border-top: 0;
            padding-top: 8px;
        }

        .login-confirm-container {
            width: 100%;
            display: grid;
            place-items: center;
            padding: 0;
            text-align: left;
        }

        .login-confirm-container.hidden {
            display: none;
        }

        .confirm-shell {
            position: relative;
            width: 100%;
            max-width: 448px;
            padding: 26px 24px 22px;
            border-radius: 24px;
            border: 1px solid color-mix(in srgb, var(--border-color) 88%, var(--brand-primary));
            background: linear-gradient(180deg, color-mix(in srgb, var(--bg-card) 96%, transparent) 0%, color-mix(in srgb, var(--bg-card) 90%, transparent) 100%);
            box-shadow: 0 24px 70px rgba(26, 34, 74, 0.12), 0 1px 0 rgba(255,255,255,0.82) inset;
            overflow: hidden;
        }

        .confirm-shell-glow {
            position: absolute;
            inset: -40px auto auto -32px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(74,108,247,0.16) 0%, rgba(74,108,247,0.08) 34%, transparent 72%);
            pointer-events: none;
        }

        .confirm-header,
        .confirm-body,
        .confirm-actions,
        .confirm-footer {
            position: relative;
        }

        .confirm-header {
            display: grid;
            gap: 10px;
            margin-bottom: 20px;
        }

        .confirm-kicker {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--brand-primary);
            font-size: 11px;
            font-weight: 800;
            letter-spacing: 0.18em;
            text-transform: uppercase;
        }

        .confirm-kicker-line {
            width: 22px;
            height: 2px;
            border-radius: 999px;
            background: currentColor;
        }

        .confirm-title {
            color: var(--text-primary);
            font-size: 24px;
            line-height: 1.2;
            font-weight: 860;
            letter-spacing: 0;
        }

        .confirm-subtitle {
            color: var(--text-secondary);
            font-size: 13px;
            line-height: 1.7;
        }

        .confirm-body {
            display: grid;
            grid-template-columns: 156px minmax(0, 1fr);
            align-items: center;
            gap: 18px;
            padding: 18px 16px;
            border-radius: 18px;
            background: color-mix(in srgb, var(--bg-input) 72%, transparent);
            border: 1px solid color-mix(in srgb, var(--border-color) 72%, transparent);
        }

        .confirm-avatar-halo {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            display: grid;
            place-items: center;
            background: radial-gradient(circle, rgba(255,255,255,0.94) 0 38%, rgba(232,236,241,0.80) 39% 58%, rgba(232,236,241,0.34) 59% 74%, rgba(232,236,241,0) 75%);
            box-shadow: 0 18px 46px rgba(26, 34, 74, 0.10);
        }

        .confirm-avatar-ring {
            width: 96px;
            height: 96px;
            border-radius: 50%;
            padding: 6px;
            background: color-mix(in srgb, var(--bg-card) 94%, transparent);
            border: 1px solid color-mix(in srgb, var(--border-color) 84%, transparent);
            box-shadow: 0 16px 32px rgba(26,34,74,0.12), inset 0 1px 0 rgba(255,255,255,0.82);
            overflow: hidden;
        }

        .confirm-avatar-ring img {
            display: block;
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 50%;
            background: var(--bg-input);
        }

        .confirm-profile {
            display: grid;
            gap: 8px;
            align-content: center;
            min-width: 0;
        }

        .confirm-user-name {
            color: var(--text-primary);
            font-size: 28px;
            line-height: 1.12;
            font-weight: 860;
            overflow-wrap: anywhere;
        }

        .confirm-user-qq {
            color: var(--text-secondary);
            font-size: 13px;
            line-height: 1.5;
        }

        .confirm-online-pill {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            width: fit-content;
            min-height: 30px;
            margin-top: 2px;
            padding: 6px 13px;
            border-radius: 999px;
            border: 1px solid rgba(45,122,58,0.18);
            background: rgba(45,122,58,0.08);
            color: var(--success);
            font-size: 12px;
            font-weight: 760;
            box-shadow: 0 10px 22px rgba(45,122,58,0.08);
        }

        .confirm-online-pill span {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--success);
            box-shadow: 0 0 0 4px rgba(45,122,58,0.10);
        }

        .confirm-actions {
            display: grid;
            gap: 10px;
            margin-top: 18px;
        }

        .confirm-primary-btn,
        .confirm-logout-btn {
            min-height: 52px;
            width: 100%;
            border: none;
            border-radius: 15px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-family: inherit;
            font-size: 14px;
            font-weight: 800;
            cursor: pointer;
            transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease, color 0.22s ease;
        }

        .confirm-primary-btn {
            color: #fff;
            background: var(--brand-primary);
            box-shadow: 0 12px 26px rgba(74,108,247,0.22);
        }

        .confirm-primary-btn:hover {
            background: var(--brand-primary-dark);
            box-shadow: 0 16px 30px rgba(74,108,247,0.28);
            transform: translateY(-1px);
        }

        .confirm-logout-btn {
            color: var(--text-muted);
            background: color-mix(in srgb, var(--bg-input) 72%, transparent);
            border: 1px solid color-mix(in srgb, var(--border-color) 76%, transparent);
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.58);
        }

        .confirm-logout-btn svg {
            flex-shrink: 0;
            color: var(--text-light);
        }

        .confirm-logout-btn:hover {
            color: var(--text-secondary);
            background: color-mix(in srgb, var(--bg-input-focus) 86%, transparent);
            transform: translateY(-1px);
        }

        .confirm-footer {
            margin-top: 16px;
            display: flex;
            justify-content: flex-end;
        }

        .confirm-copyright {
            color: var(--text-light);
            font-size: 11px;
            line-height: 1.5;
        }

        @media (max-width: 480px) {
            .login-wrapper { padding: 12px; }
            .login-box { padding: 34px 22px 24px; border-radius: 20px; }
            body.login-confirm-mode .login-box { padding: 0; border-radius: 20px; }
            .login-box .logo h1 { font-size: 21px; }
            .login-box .logo .brand-avatar { width: 64px; height: 64px; border-radius: 18px; }
            .login-confirm-container { padding: 0; }
            .confirm-shell { max-width: 100%; padding: 20px 18px 18px; border-radius: 20px; }
            .confirm-header { gap: 8px; margin-bottom: 16px; }
            .confirm-title { font-size: 21px; }
            .confirm-subtitle { font-size: 12px; line-height: 1.65; }
            .confirm-body { grid-template-columns: 1fr; justify-items: center; gap: 14px; padding: 16px 14px; }
            .confirm-avatar-halo { width: 136px; height: 136px; }
            .confirm-avatar-ring { width: 88px; height: 88px; padding: 5px; }
            .confirm-profile { justify-items: center; text-align: center; }
            .confirm-user-name { font-size: 24px; }
            .confirm-user-qq { font-size: 12px; }
            .confirm-online-pill { margin-top: 0; }
            .confirm-actions { margin-top: 14px; }
            .confirm-primary-btn,
            .confirm-logout-btn { min-height: 48px; border-radius: 14px; font-size: 13px; }
            .confirm-footer { margin-top: 12px; justify-content: center; }
            .confirm-copyright { font-size: 10px; text-align: center; }
        }

        @media (prefers-reduced-motion: reduce) {
            .login-box { animation: none; }
            .confirm-primary-btn,
            .confirm-logout-btn {
                transition: none;
            }
        }