* { margin: 0; padding: 0; box-sizing: border-box; }
        html, body { height: 100%; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif; }

        /* ========== 整体布局 ========== */
        .v2-login-page {
            display: flex;
            min-height: 100vh;
            width: 100%;
        }

        /* ========== 左侧视觉区 ========== */
        .v2-login-visual {
            flex: 1;
            background: linear-gradient(135deg, #0B1D4A 0%, #112A5E 100%);
            position: relative;
            display: flex;
            flex-direction: column;
            padding: 0;
            overflow: hidden;
            min-width: 0;
        }

        /* Logo */
        .v2-login-visual .logo-top {
            position: absolute;
            top: 28px;
            left: 32px;
            z-index: 2;
        }
        .v2-login-visual .logo-top img {
            height: 40px;
            filter: brightness(10);
        }

        /* 中间数据亮点 */
        .v2-visual-center {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 80px 48px 40px;
            z-index: 1;
        }
        .v2-data-highlights {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px 60px;
            text-align: center;
        }
        .v2-data-item {
            color: #fff;
            opacity: 0;
            animation: fadeInUp 0.6s ease forwards;
        }
        .v2-data-item:nth-child(1) { animation-delay: 0.1s; }
        .v2-data-item:nth-child(2) { animation-delay: 0.2s; }
        .v2-data-item:nth-child(3) { animation-delay: 0.3s; }
        .v2-data-item:nth-child(4) { animation-delay: 0.4s; }

        .v2-data-item .data-number {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.1;
            letter-spacing: -1px;
            background: linear-gradient(90deg, #60a5fa, #93c5fd);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .v2-data-item .data-desc {
            font-size: 15px;
            color: rgba(255,255,255,0.75);
            margin-top: 8px;
            font-weight: 400;
        }

        /* 底部功能优势 */
        .v2-visual-bottom {
            padding: 32px 48px 40px;
            z-index: 1;
        }
        .v2-features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .v2-feature-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 8px;
        }
        .v2-feature-item .feat-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255,255,255,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #60a5fa;
        }
        .v2-feature-item .feat-title {
            font-size: 13px;
            font-weight: 600;
            color: #fff;
        }
        .v2-feature-item .feat-desc {
            font-size: 11px;
            color: rgba(255,255,255,0.55);
            line-height: 1.4;
        }

        /* 装饰元素 */
        .v2-login-visual::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -120px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(96,165,250,0.08) 0%, transparent 70%);
        }
        .v2-login-visual::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(96,165,250,0.06) 0%, transparent 70%);
        }

        /* ========== 右侧登录区 ========== */
        .v2-login-right {
            width: 480px;
            min-width: 480px;
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 40px;
            position: relative;
        }

        .v2-login-card {
            width: 100%;
            max-width: 360px;
        }

        /* 欢迎文字 */
        .v2-form-welcome {
            margin-bottom: 32px;
        }
        .v2-form-welcome h2 {
            font-size: 26px;
            font-weight: 700;
            color: #0B1D4A;
            margin-bottom: 8px;
        }
        .v2-form-welcome p {
            font-size: 14px;
            color: #8892a4;
        }

        /* 表单 */
        .v2-form-group {
            margin-bottom: 20px;
        }
        .v2-form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: #3a4255;
            margin-bottom: 6px;
        }
        .v2-input-wrap {
            position: relative;
        }
        .v2-input-wrap input {
            width: 100%;
            height: 44px;
            border: 1.5px solid #e2e8f0;
            border-radius: 8px;
            padding: 0 16px 0 42px;
            font-size: 14px;
            color: #1e293b;
            background: #f8fafc;
            transition: all 0.2s;
            outline: none;
        }
        .v2-input-wrap input:focus {
            border-color: #3b82f6;
            background: #fff;
            box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
        }
        .v2-input-wrap input::placeholder {
            color: #a0aec0;
        }
        .v2-input-wrap .input-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: #94a3b8;
            font-size: 14px;
        }

        /* 验证码行 */
        .v2-verify-row {
            display: flex;
            gap: 10px;
            align-items: center;
        }
        .v2-verify-row .v2-input-wrap {
            flex: 1;
        }
        .v2-verify-row .v2-input-wrap input {
            padding-left: 16px;
        }
        .v2-verify-img {
            height: 44px;
            border-radius: 8px;
            cursor: pointer;
            border: 1.5px solid #e2e8f0;
            flex-shrink: 0;
        }
        .v2-verify-img:hover {
            border-color: #3b82f6;
        }

        /* 登录按钮 */
        .v2-btn-login {
            width: 100%;
            height: 46px;
            border: none;
            border-radius: 8px;
            background: linear-gradient(135deg, #1e40af 0%, #2563eb 100%);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s;
            margin-top: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .v2-btn-login:hover {
            background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 100%);
            box-shadow: 0 4px 16px rgba(37,99,235,0.35);
            transform: translateY(-1px);
        }
        .v2-btn-login:active {
            transform: translateY(0);
        }
        .v2-btn-login:disabled {
            opacity: 0.65;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }

        /* 多语言条 */
        .v2-lang-strip {
            margin-top: 28px;
            padding-top: 20px;
            border-top: 1px solid #f0f2f5;
        }
        .v2-lang-label {
            font-size: 11px;
            color: #a0aec0;
            margin-bottom: 10px;
            text-align: center;
        }
        .v2-lang-tags {
            display: flex;
            gap: 8px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .v2-lang-tag {
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 20px;
            background: #f1f5f9;
            color: #64748b;
        }

        /* 页脚 */
        .v2-login-footer-text {
            margin-top: 20px;
            text-align: center;
            font-size: 11px;
            color: #b0b8c9;
            line-height: 1.6;
        }

        /* ========== 动画 ========== */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ========== 响应式 ========== */
        @media (max-width: 960px) {
            .v2-login-visual {
                display: none;
            }
            .v2-login-right {
                width: 100%;
                min-width: 0;
            }
        }